Hilti PR3XR01 Rotating Laser User Manual Hilti Omega

Hilti Corporation Rotating Laser Hilti Omega

Users Manual

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*000000*000000Hilti CorporationLI-9494 SchaanTel.:+423 / 2342111Fax:+423 / 2342965www.hilti.comHilti = registered trademark of Hilti Corp., Schaan W 0000 0310 00-Pos. 1 1 Printed in Liechtenstein © 2010Right of technical and programme changes reserved S. E. & O. 000000 / A
ORIGINAL OPERATING INSTRUCTIONSPR 35 rotating laserIt is essential that the operating instructionsare read before the tool is operated for thefirst time.Always keep these operating instructionstogether with the tool.Ensure that the operating instructions arewith the tool when it is given to otherpersons.Contents Page1. General information 22. Description 23. Accessories 54. Technical data 55. Safety instructions 76. Before use 97. Operation 108. Care and maintenance 149. Troubleshooting 1510. Disposal 1611. Manufacturer’s warranty - tools 1712. EC declaration of conformity 171These numbers refer to the corresponding illustra-tions. The illustrations can be found on the fold-outcover pages. Keep these pages open while studyingthe operating instructions.In these operating instructions, the designation “thetool” or “the rotating laser” always refers to theHilti PR 35. The designation “remote control / laserreceiver” always refers to the Hilti PRA 35.Rotating laser 1@Laser beam (plane of rotation);Rotating head=Grip%Control panel&Battery(Battery compartment)Base plate with 5/8" threadRotating laser control panel 2@On / off button;Auto-leveling LED=Direction buttons%Shock warning deactivation LED&Monitoring mode LED(Slope LED)Line function button+Speed of rotation button§Battery statusPRA 35 control panel (on the front of the receiver) 3@On / off button;Special line function=Units button%Volume button&Automatic alignment button(Monitoring mode button)Receiving area+Marking notch§DisplayPRA 35 control panel (on the rear of the remotecontrol) 4@Sleep mode button;Speed of rotation button=Line function button%Direction buttons (up/down)&Direction buttons (left/right)(Button lockPRA 35 display 5@Position of the receiver relative to the height ofthe laser plane;Battery status=Signal tone volume%Button lock&Distance of receiver from laser planeen1
>1/4s35+LOWL WUDGHPDUNRIWKH+LOWL&RUSRUDWLRQ6FKDDQ/, 0DGHLQ*HUPDQ\1PXFS7OPNN"/$6(55$',$7,21'212767$5(,172%($0QPP:PD[&/$66,,/$6(5352'8&7$"65*0/(11. General information1.1 Safety notices and their meaningDANGERDraws attention to imminent danger that could leadto serious bodily injury or fatality.WARNINGDraws attention to a potentially dangerous situationthat could lead to serious personal injury or fatality.CAUTIONDraws attention to a potentially dangerous situationthat could lead to slight personal injury or damage tothe equipment or other property.NOTEDraws attention to an instruction or other usefulinformation.1.2 Explanation of the pictograms and otherinformationSymbolsRead theoperatinginstructionsbefore use.GeneralwarningReturn wastematerial forrecycling.Do not lookinto the beam.Symbol for Laser Class II / Class 2Laser class II accordingto CFR 21, § 1040 (FDA)Laser class 2according toEN 60825:2008Type identification platePR 35Location of identification data on the toolThe type designation and serial number can be foundon the type identification plate on the tool. Make anote of this data in your operating instructions andalways refer to it when making an enquiry to yourHilti representative or service department.Type:Generation: 01Serial no.:2. Description2.1 Use of the product as directedThe tool is designed to be used to determine, transfer and check levels, verticals, slopes and right angles.Examples of its uses are: transferring datums and height marks, determining right angles for walls, verticalalignment on reference points and setting out slopes.Use of tools or AC adapters which show visible signs of damage is not permissible. Operation outdoors or indamp conditions in “Charging during operation mode” is not permissible.To avoid the risk of injury, use only genuine Hilti accessories and insert tools.Observe the information printed in the operating instructions concerning operation, care and maintenance.en2
Take the influences of the surrounding area into account. Do not use the appliance where there is a risk of fireor explosion.Modification of the tool is not permissible.2.2 PR 35 rotating laserThe Hilti PR 35 is a rotating laser tool with a visible rotating laser beam and a reference beam set at 90° to themain beam. The PR 35 can be used for alignment in the vertical, horizontal and inclined planes.2.3 FeaturesThe tool makes it possible for a single person to level or align in any plane quickly and with great accuracy.The tool features automatic leveling (within 10° (±5°)). The tool levels itself automatically after switching on.The laser beam is emitted only when the specified accuracy has been achieved.LEDs indicate the tool’s current operating status.The tool is powered by a rechargeable Li‑ion battery which can be charged while the tool is in operation.The PR 35 has a number of useful features: Monitoring mode, auto-alignment, sleep mode and button lock.2.4 PRA 35 combined remote control and laser receiverThe PRA 35 is a combined remote control unit and laser receiver. It can be used to control the PR 35 rotatinglaser over great distances. The PRA 35 also serves as a laser receiver and can thus be used to detect andindicate the laser beam at great distances.2.5 Digital distance measurement displayThe PRA 35 shows the distance between the laser plane and the marking notch on the PRA 35 in the digitaldisplay. This allows the user to determine the exact position of the receiver relative to the laser plane, withmillimeter accuracy, in a single operation.2.6 Speed of rotation / line function3 speeds of rotation are available for use (300, 600, 1200 /min). It is possible to switch between the individualfunctions such as rotation and line functions. This is possible with the PR 35 rotating laser and with the PRA35.The line function improves laser beam visibility and limits the laser beam to a certain working area.2.7 Automatic alignment and monitoringUsing the PR 35 and the PRA 35, a single person can align the laser plane automatically with a certain pointwith great accuracy. When required, the laser plane can be checked at regular intervals with the aid of themonitoring function and the PRA 35 in order to avoid possible deviations due to temperature fluctuations,wind or similar.2.8 Digital slope display with patented electronic axis alignmentThe digital slope display can indicate a slope of up to 15%. This makes it possible to set out and check slopeswithout having to make any calculations.2.9 Shock warningThe tool goes into warning mode if it is knocked off level (due to vibration or impact) while in operation: allLEDs blink and the laser switches off (the laser head no longer rotates).en3
2.10 Automatic cut-outThe laser does not switch on and all LEDs blink if the tool is set up outside its self-leveling range or movementis blocked mechanically.After switching the tool on, the shock warning only becomes active 1 minute after completion of leveling. If abutton is pressed within this time (before 1 minute has elapsed), the 1 minute delay before activation beginsagain.2.11 Items supplied1 PR 35 rotating laser1 PRA 35 remote control / laser receiver1 PRA 80 receiver holder1 PR 35 operating instructions1 Target plate1 Manufacturer’s certificate1 PRA 84 Li‑ion battery1 PRA 85 AC adapter1 Hilti toolbox2.12 Operating status indicatorsOperating status is indicated as follows: auto-leveling LED, battery status LED, shock warning LED and slopeLED.2.13 LED indicatorsAuto-leveling LED(green)The green LED blinks. The tool is in the leveling phase.The green LED lightsconstantly.The tool has leveled itself / is operating normally.Shock warning LED(orange)The orange LED blinks. After switching on, the shock warning mode is notimmediately active (delay of approx. 1 minute).The orange LED lightsconstantly.Shock warning mode is deactivated.Monitoring LED (orange) The LED lights orange. The tool is in monitoring mode.Slope LED (orange) The orange LED blinks. Alignment in the sloping plane.The orange LED lightsconstantly.Slope mode is active.Several LEDs light 2 LEDs blink orange. The tool is in axis alignment (slope) mode.All LEDs All LEDs blink The tool has been bumped, knocked off level or isexhibiting some other error.2.14 Charge status of the Li‑ion battery during operationLEDs light constantly LEDs blink Charge status CLED 1,2,3,4 -C≧75 %LED 1,2,3 -50 % ≦C < 75 %LED 1,2 -25 % ≦C < 50 %LED 1 -10 % ≦C < 25 %-LED 1 C < 10 %en4
2.15 Charge status of the Li‑ion battery during charging while inserted in the toolLEDs light constantly LEDs blink Charge status CLED 1,2,3,4 -C = 75 %LED 1,2,3 LED 4 C≧75%LED 1,2 LED 3 50 % ≦C < 75 %LED 1 LED 2 25 % ≦C < 50 %-LED 1 C < 25 %2.16 Charge status of the Li‑ion battery during charging while not inserted in the toolIf the red LED lights constantly, the battery is being charged.If the red LED doesn’t light, the battery is fully charged.3. AccessoriesPRA 35 remote control / laser receiverLaser receiver PRA 38, PRA 30/31Target plate PRA 50/51Wall mount PRA 70/71Slope calculator PRA 52Slope adapter PRA 78Car charging connector PRA 86Height transfer device PRA 81AC adapter PRA 85Battery PRA 84Vertical angle PRA 770Batter board receiver holder PRA 751Batter board adapter PRA 750Facade adapter PRA 760Various tripods PUA 20, PUA 30, PA 921, PA 931/2Telescopic staffs PA 960, PUA 50, PUA 55/564. Technical dataRight of technical changes reserved.PR 35PR 35 receiving range (diameter) Typical distance with PRA 35: 2…300 m (6...900 ft)Range of remote control (circle diameter) Typical distance with PRA 35: 0…100 m (0...300 ft)Accuracy 0.75 mm per 10 m horizontal distance(77° F, ¹/₁₁" in 100 ft) at a temperature of 25°CPlumb beam Continuous, perpendicular to the plane of rotationPR 35 laser class Class 2, visible, 620-690 nm / Po < 4.85 min, ≧300 /min (EN 60825-1:2008 / IEC 825 - 1:2008);class II (CFR 21 § 1040 (FDA))en5
Speed of rotation 300, 600, >1200 /minSlope range 15% (8.6°)Self-leveling range x=13.6° (+5°, -8.6°); y=10° (±5°)Power source 7.2V/ 4.5 Ah Li‑ion batteryBattery life Temperature +20°C (+68°F), Li‑ion battery: ≥30 hOperating temperature range -20…+50°C (-4°F to 122°F)Storage temperature range (dry) -25…+60°C (-13°F to 140°F)Protection class As perIP 56 (in accordance withIEC 529)Tripod thread ⁵⁄₈"X11Weight (incl. PRA 84) 2.4 kg (5.3 lbs)Dimensions (L x W x H) 252 mm X 252 mm X 209 mm (10" x 10" x 8")PRA 35Detection range (area diameter) 2…300 m (6 to 1000 ft)Signal tone generator 3 volume levels plus mute settingLiquid crystal display On both sidesIndicator range, distance from zero ±50mm(±2in)Laser plane indication accuracy ± 0.5 mm (± 0.02 in)Width of receiving area 120 mm (5 in)Center indication from top edge of casing 75 mm (3 in)Marking notches On both sidesAutomatic power-off When no beam is detected: 15 minDimensions 160 mm X 67 mm X 24 mmWeight (including batteries) 0.25 kg (0.6 lbs)Power source 2 AA batteriesBattery life (alkaline-manganese) Temperature +20°C (+68°F): 40 hOperating temperature range -20…+50°C (-4 °F to 122 °F)Storage temperature range -25…+60°C (-13 °F to 140 °F)Protection class IP 56in accordance with IEC 529PRA 84 Li‑ion batteryRated voltage (normal mode) 7.2 VMaximum voltage (during operation or duringcharging while in operation)13 VRated current 160 mAhCharging time 130 min, at 25 COperating temperature range -20…+50°C (-4°F to 122°F)Storage temperature range (dry) -25…+60°C (-13°F to 140°F)Charging temperature range (also for chargingduring operation)+0…+40°C (32° to +104°F)Weight 0.3 kg (0.67 lbs)Dimensions (L x W x H) 160 mm X 45 mm X 36 mm (6.3" x 1.8" x 1.4")PRA 85 AC adapterAC supply 115…230 VAC frequency 47…63 Hzen6
Rated power 40 WRated voltage 12 VOperating temperature range +0…+40°C (32°F to +104°F)Storage temperature range (dry) -25…+60°C (-13°F to 140°F)Weight 0.23 kg (0.51 lbs)Dimensions (L x W x H) 110 mm X 50 mm X 32 mm (4.3" x 2" x 1.3")5. Safety instructions5.1 Basic information concerning safetyIn addition to the information relevant to safetygiven in each of the sections of these operatinginstructions, the following points must be strictlyobserved at all times.5.2 General safety rulesa) Do not render safety devices ineffective and donot remove information and warning notices.b) Keep laser tools out of reach of children.c) Failure to follow the correct procedures whenopening the tool may cause emission of laserradiation in excess of class 2. Have the toolrepaired only at a Hilti Service Center.d) Take the influences of the surrounding area intoaccount. Do not use the tool where there is a riskof fire or explosion.e) (Statement in accordance with FCC §15.21):Changes or modifications not expressly approvedby the manufacturer can void the user’s authorityto operate the equipment.5.3 Proper organization of the work areaa) Secure the area in which you are working andtake care to avoid directing the beam towardsother persons or towards yourself when settingup the tool.b) Avoid unfavorable body positions when workingfrom ladders. Make sure you work from a safestance and stay in balance at all times.c) Measurements taken through panes of glass orother objects may be inaccurate.d) Ensure that the tool is set up on a steady, levelsurface (not subject to vibration).e) Use the tool only within its specified limits.f) Check that your PR 35 is responding only to yourPRA 35 and not to other PRA 35s that may be inuse on the jobsite.5.3.1 Electromagnetic compatibilityAlthough the tool complies with the strict require-ments of the applicable directives, Hilti cannot en-tirely rule out the possibility of the tool being subjectto interference caused by powerful electromagneticradiation, leading to incorrect operation. Check theaccuracy of the tool by taking measurements by othermeans when working under such conditions or if youare unsure. Likewise, Hilti cannot rule out the pos-sibility of interference with other devices (e.g. aircraftnavigation equipment).5.3.2 Laser classification for laser class IIappliancesThe tool complies with Laser Class 2 in accordancewith IEC825-1:2008 / EN60825-1:2008 and ClassII in accordance with CFR 21 § 1040 (FDA). Thistool may be used without need for further protectivemeasures. The eyelid closure reflex protects the eyeswhen a person looks into the beam unintentionally fora brief moment. This eyelid closure reflex, however,may be negatively affected by medicines, alcohol ordrugs. Nevertheless, as with the sun, one should notlook directly into sources of bright light. Do not directthe laser beam toward persons.5.4 General safety rulesa) Check the condition of the tool before use. If thetool is found to be damaged, have it repaired ata Hilti service center.b) The user must check the accuracy of the toolafter it has been dropped or subjected to othermechanical stresses.en7
c) When the tool is brought into a warm environ-ment from very cold conditions, or vice-versa,allow it to become acclimatized before use.d) If mounting on an adapter, check that the tool isscrewed on securely.e) Keep the laser exit aperture clean to avoid meas-urement errors.f) Although the tool is designed for the tough con-ditions of jobsite use, as with other optical andelectronic instruments (e.g. binoculars, spec-tacles, cameras) it should be treated with care.g) Although the tool is protected to prevent entryof dampness, it should be wiped dry each timebefore being put away in its transport container.h) Check the tool before using it for important meas-uring work.i) Check the accuracy of the measurements severaltimes during use of the tool.j) Use the AC adapter only for connecting to the ACsupply.k) Check to ensure that the tool and AC adapter donot present an obstacle that could lead to a riskof tripping and personal injury.l) Ensure that the workplace is well lit.m)Avoid body contact with earthed or groundedsurfaces, such as pipes, radiators, ranges andrefrigerators. There is an increased risk of electricshock if your body is earthed or grounded.n) Check the condition of the extension cord andreplace it if damage is found. Do not touch theAC adapter if the extension cord or AC adapter aredamaged while working. Disconnect the supplycord plug from the power outlet. Damaged supplycords or extension cords present a risk of electricshock.o) Do not expose the supply cord to heat, oil orsharp edges.p) Never operate the AC adapter when it is dirtyor wet. Dust (especially dust from conductivematerials) or dampness adhering to the surfaceof the AC adapter may, under unfavorable condi-tions, lead to electric shock. Dirty or dusty toolsshould thus be checked at a Hilti Service Centerat regular intervals, especially if used frequentlyfor working on conductive materials.q) Avoid touching the contacts.5.4.1 Battery tool use and carea) Check that the tool is switched off before fittingthe battery. Use only the Hilti battery approved foruse with this tool.b) Do not expose batteries to high temperatures orfire. This presents a risk of explosion.c) Do not disassemble, squash or incinerate batter-ies and do not subject them to temperatures over75°C. A risk of fire, explosion or injury throughcontact with caustic substances may otherwiseresult.d) Avoid ingress of moisture. Moisture may causea short circuit resulting in a risk of burning injuryor fire.e) Do not use batteries other than those approvedfor use with the applicable tool or appliance.Use of other batteries or use of the battery forpurposes for which it is not intended presents arisk of fire and explosion.f) Observe the special instructions applicable to thetransport, storage and use of Li-ion batteries.g) Avoid short-circuiting the battery. Before insert-ing the battery in the tool, check that the terminalsof the battery and the tool are free from for-eign objects. Short-circuiting the battery terminalspresents a risk of fire, explosion or contact withcaustic substances.h) Do not charge or continue to use damaged bat-teries (e.g. batteries with cracks, broken parts,bent or pushed-in and/or pulled-out contacts).i) Use only the specified battery to power the tooland use only the PRA 85 AC adapter or PRA 86car charging connector for charging. Failure toobserve these points may result in damage to thetool.en8
6. Before useNOTEThe PR 35 may be powered only by the Hilti PRA 84battery, which is manufactured in accordance withIEC 60285.6.1 Charging the batteryDANGERUse only the Hilti battery, car charging connectorand Hilti AC adapter listed under “Accessories”.6.1.1 Charging a new battery for the first timeCharge the battery fully before using it for the firsttime.NOTEMake sure the system to be charged is standingsecurely.6.1.2 Charging a previously used batteryEnsure that the outer surfaces of the battery are cleanand dry before inserting it in the tool.Li-ion batteries are ready for use at any time, evenwhen only partly charged. During charging, progressis indicated by the LEDs on the tool.6.2 Options for charging the batteryDANGERThe PRA 85 AC adapter is for indoor use only. Avoidingress of moisture.6.2.1 Charging the battery in the tool 67NOTEWhen charging, check that the temperature is withinthe recommended charging temperature range (0 to40°C/ 32 to 104°F).1. Insert the battery in the battery compartment.2. Swing the cover to the side so that the chargingcord socket becomes accessible.3. Connect the charging cord from the AC adapteror car charging connector to the battery.4. During charging, the charge status is indicated bythe battery status LEDs on the tool (the tool mustbe switched on).6.2.2 Charging the battery outside the tool 8NOTEWhen charging, check that the temperature is withinthe recommended charging temperature range (0 to40°C/ 32 to 104°F).1. Remove the battery from the tool and connect itto the AC adapter or car charging connector.2. The red LED on the battery lights while chargingis in progress.6.2.3 Charging the battery while the tool is inoperation 8CAUTIONAvoid ingress of moisture. Moisture may cause ashort circuit resulting in a risk of burning injury orfire.1. Swing the cover to the side so that the chargingcord socket becomes accessible.2. Connect the charging cord from the AC adapterto the battery.3. The tool continues to operate while charging is inprogress.4. During charging, the charging status is indicatedby the LEDs on the tool.6.3 Battery use and careStore the battery in a cool, dry place. Never storethe battery where it is exposed to direct sunlight orsources of heat, e.g. on heaters / radiators or behind amotor vehicle windscreen. Batteries that have reachedthe end of their life must be disposed of safely andcorrectly to avoid environmental pollution.6.4 Fitting the battery 6CAUTIONBefore inserting the battery in the tool, check thatthe terminals of the battery and the tool are freefrom foreign objects.en9
1. Push the battery into the tool.2. Turn the catch in a clockwise direction to thesecond detent (the “locked” symbol is displayed).6.5 Removing the battery 91. Turn the catch in a counterclockwise directionfrom the second detent back to the “open” posi-tion (the “unlocked” symbol is displayed).2. Pull the battery out of the tool.6.6 Switching the tool onPress the “On / off” button.NOTEAfter switching on, the tool begins the automatic lev-eling process (takes max. 40 seconds). After comple-tion of the leveling process, the laser beam switcheson and begins to rotate in the normal direction. Whenleveling in the horizontal plane the laser head rotatesautomatically at medium speed and, when workingin the vertical plane, a reference point is projecteddownwards.6.7 LED indicatorsPlease refer to section 2 “Description”.6.8 Inserting batteries in the PRA 35 CAUTIONDo not use damaged batteries.DANGERDo not mix old and new batteries. Do not mix batteriesof different makes or types.NOTEThe PRA 35 may be powered only by batteries man-ufactured in accordance with the applicable interna-tional standards.6.9 PairingNOTEIn the state supplied, the PR 35 rotating laser and thePRA 35 remote control / laser receiver have not beenpaired. They cannot operate together until they havebeen paired.The PR 35 rotating laser and the PRA 35 must be setto operate as a pair before they can be used together.Pairing the tools means that they are configured tocommunicate with each other. The PR 35 rotatinglaser then receives signals only from the PRA 35 withwhich it has been paired. Pairing makes it possible towork alongside other rotating lasers without risk ofsettings being altered inadvertently by these tools.1. Press the “On / off” buttons on the PR 35 rotatinglaser and on the PRA 35 simultaneously (or onthe PRA 90 if this tool is being used) and keepthe buttons pressed for at least 3 seconds.When pairing has been carried out successfully, asignal tone is emitted by the PRA 35 and all LEDson the PR 35 rotating laser blink.2. Switch off the tools that have been paired andthen switch them on again.The “Paired” symbol appears in the display (see“Troubleshooting” section).7. Operation7.1 Switching the tool onPress the “On / off” button.NOTEAfter switching on, the tool begins to level itselfautomatically.7.2 Working with the PRA 35The PRA 35 is a laser receiver (front) and, at thesame time, a remote control unit (rear). The remotecontrol makes working with the rotating laser moreconvenient and is required in order to make use ofcertain functions.en10
7.2.1 Working with the laser receiver as a hand-held unit1. Press the “On / off” button.2. Hold the PRA 35 in the plane of the rotating laserbeam.The laser beam is indicated by visual and audiblesignals.7.2.2 Using the PRA 35 in the PRA 80 receiverholder 1. Open the catch on the PRA 80.2. Place the PRA 35 in the PRA 80 receiver holder.3. Close the catch on the PRA 80.4. Switch the laser receiver on by pressing the “On/ off” button.5. Turn the rotating grip to the open position.6. Fit the PRA 80 receiver holder onto the telescopicstaff or leveling staff and secure it by tighteningthe rotating grip.7. Hold the PRA 35 with the receiving window in theplane of the rotating laser beam.The laser beam is indicated by visual and audiblesignals.7.2.3 Working with the PRA 81 height transferdevice 1. Open the catch on the PRA 81.2. Insert the PRA 35 laser receiver in the PRA 81height transfer device.3. Close the catch on the PRA 81.4. Switch the PRA 35 on by pressing the “On / off”button.5. Position the PRA 35 so that the distance displayshows “0”.6. Hold the PRA 35 with the receiving window in theplane of the rotating laser beam.7. Use the measuring tape to measure the desireddistance.7.2.4 Menu optionsPress the “On / off” button for 2 seconds whenswitching the PRA 35 on.The menu then appears in the display.Use the measuring units button to select metric orimperial measuring units.Use the volume button to assign the more rapidsignal tone to the upper or lower area of the receivingwindow.To save the settings, switch the PRA 35 off.7.2.5 Setting the measuring unitThe “units” button can be used to set the desiredmeasuring unit according to the country of use (mm/ cm / off) or (¹⁄₈in / ¹⁄₁₆in / off).7.2.6 Setting the volume of the signal toneThe tool is set to “Normal” volume when switched on.The volume can be adjusted by pressing the “Signaltone” button. One of the following settings can beselected: “Low”, “Normal”, “High” or “Off”.7.2.7 Button lock and confirmation of entriesThe button lock function of the PRA 35 preventsunintentional entries being made and is indicated atthe upper left edge of the display on both sides of thePRA 35. The lock symbol is either open (unlocked) orclosed (locked). During operation, the command mustbe confirmed by pressing the button again in orderto rule out incorrect manipulation. This requirementfor confirmation is indicated in the display but, forthe sake of simplicity, is not mentioned each time inother sections of the operating instructions.7.3 Basic functions of the PR 35The basic functions are horizontal and vertical align-ment plus working with slopes.7.3.1 Setting the speed of rotationNOTEThe speed of rotation can be adjusted by pressing the“Speed of rotation” button (on the control panel ofthe rotating laser or on the PRA 35). The speeds ofrotation are: 300, 600 and >1200 /min. The receiverworks best at 600 /min and should not be used atspeeds of >1200 /min.7.3.2 Selecting the line functionNOTEWhen the “Line” button is pressed, the rotating laserprojects a line which can be lengthened or shortenedby further presses of the button.NOTEWith the aid of the PRA 35 laser receiver it is alsopossible to stop rotation of the laser and to project aline at the position of the PRA 35. To do this, movethe PRA 35 laser receiver into the plane of the laserbeam and press the “Special line button”.en11
7.3.3 Moving the laser lineThe laser line can be moved to the left or right bypressing the “Direction” buttons (PR 35 or PRA 35).Holding down the button results in continuous move-ment and increases the speed of movement of thelaser line.7.4 Working in the horizontal plane 7.4.1 Setting up1. Set up the tool in a suitable position for theapplication, e.g. on a tripod. The angle of thesurface on which it is stood should not exceed10° (± 5°).2. Press the “On / off” button.3. The laser beam switches on and the head beginsto rotate at a speed of 300 /min as soon as thetool has leveled itself.7.5 Working in the vertical plane 1. When working in the vertical plane, place thetool on its metal feet so that the control panelfaces upwards. Alternatively, the rotating lasermay also be mounted on a suitable tripod, wallbracket, facade adapter or batter board adapter.2. Adjust the tool so that its vertical axis is positionedin the required direction.3. In order to ensure that the tool’s specified accur-acy can be maintained, make sure that it is set upon a level surface or mounted sufficiently level onthe tripod or other accessory.4. Press the “On / off” button.After the tool has leveled itself automatically, itprojects a stationary laser beam vertically down-wards. This projected point is the reference pointand is used to position the tool.7.5.1 Manual alignmentManual alignment of the vertical plane is carried outby pressing the “Up” or “Down” buttons on the rearof the PRA 35.7.5.2 Auto-alignmentHold the PRA 35 at the point to be aligned, with thereceiving side facing the PR 35, and then press the“Automatic alignment” button.The laser plane alignment procedure then begins. Aconstant signal tone is emitted while this is takingplace.The search can be adjusted by pressing the “Direc-tion” buttons.As soon as the laser beam strikes the receiving areaof the PRA 35, the beam moves to the position of themarking notch (reference plane).A short signal tone is emitted, indicating the end ofthe procedure, as soon as the laser beam finds theposition of the marking notch.7.6 Working with slopesNOTEFor optimum results, check that the PR 35 is correctlyaligned. This is best done by selecting 2 points each5 m to the left and right of the tool but parallel to thetool axis. Mark the height of the horizontal plane andthen, after setting the slope, mark the heights. Thetool is aligned optimally only when these heights areidentical at both points.7.6.1 Setting upNOTEThe slope can be set manually, automatically, or byusing the PRA 76/78 slope adapter.1. Set up the tool in a suitable position for theapplication, e.g. on a tripod.2. With the aid of the target notch on the head ofthe PR 35, bring the tool parallel to the inclinedplane.3. Press the “On / off” button for at least 8 secondsuntil the orange LED lights.4. The laser beam switches on as soon as the toolhas leveled itself. The PRA 35 can then be set tothe desired slope.7.6.2 Setting the slope manuallyPress the “Up” and “Down” arrow buttons on thePRA 35 remote control. Pressing the arrow buttonsfor longer causes the values to change more quickly.The LED display on the PRA 35 shows the angle ofslope.If no button is pressed for 3 seconds, the tool will beset to the most recently displayed value.7.6.3 Setting the slope automaticallyNOTEThe slope can be set automatically only when slopemode is active and when a PRA 35 laser receiver isused.en12
Incline the laser as described at 7.5.2, but in alignmentwith the inclined plane.7.6.4 Optional electronic alignmentAfter setting the slope as described above, alignmentof the PR 35 can be optimized by Hilti’s patentedelectronic alignment system.1. Position the PRA 35 centrally opposite the PR 35at the end of the inclined plane. It can be heldstill by hand or fixed in place with the aid of thePRA 80.2. Switch the PRA 35 on.3. Activate electronic alignment on the PR 35 bypressing the “Left” arrow button.4. If the shock warning / slope LEDs blink, thePRA 35 is not receiving the laser beam from thePR 35.5. If the shock warning / monitoring LEDs blink,realign the PR 35 by moving it counterclockwise.6. If the slope / monitoring LEDs blink, realign thePR 35 by moving it clockwise.7. If the monitoring LED blinks, alignment is correct.8. End electronic alignment mode by pressing the“Right” arrow button.7.6.5 Setting the slope with the aid of thePRA 76/78 slope adapterNOTECheck that the slope adapter is fitted correctly betweenthe tripod and the tool (please refer to the operatinginstructions).7.7 MonitoringThe monitoring function checks at regular intervalswhether the plane that is set (vertical, horizontalor inclined) has been altered inadvertently (e.g. byvibration). If this is the case, the projected planewill be realigned to the zero point (i.e. the markingnotch on the PRA 35) (so long as it is still within thereceiving area). A PRA 35 is required for use of themonitoring function. An additional laser receiver canbe used to detect the laser beam while the laser beamis being monitored.1. Preparation for activation of the monitoring func-tion is basically the same as the procedure foractivation of automatic alignment mode.2. Position the tool at the desired starting point 1and switch it on.3. Position PRA 35 laser receiver at the referencepoint (point 2) on the axis and secure it there.The PRA 751 can be used to secure it. The tool(point 1) and the PRA 35 (point 2) then formanchor points on the plane. Take care to ensurethat the marking notch on the PRA 35 is at exactlythe height at which the rotating laser is laterto project the laser line or point. The red laserreceiving surface on the PRA 35 must face therotating laser.4. Take care to ensure there are no obstructionsbetween the rotating laser and the PRA 35 laser re-ceiver which could interfere with communicationbetween the devices. Glass and other translucentmaterials may also interfere with communicationbetween the devices. Reflections from windowsmay also cause interference.5. Switch the PR 35 and the PRA 35 on. The mon-itoring function can be activated by pressing the“Monitoring mode” button on the PRA 35.6. The system is then in monitoring mode. Thefunction is indicated in the display on the PRA 35by two regularly blinking arrows pointing towardthe axis in which alignment is to be carried out.7. The monitoring system checks at regular intervalswhether the laser plane has shifted. If it is foundto have shifted, the laser plane will be readjustedto the original marking plane as far as possible.If the marking plane is outside the self-levellingrange (10° (±5°)) or the line of sight between therotating laser and the laser receiver is blockedfor a certain length of time, an error message isdisplayed.7.8 Returning to standard modeIn order to return to standard mode, horizontal align-ment, 300 /min, the tool must be switched off andrestarted.7.9 Sleep modeThe PR 35 saves power when in sleep mode. Thelaser is switched off, thereby extending battery life.Activate sleep mode by pressing the “Sleep mode”button on the PRA 35.Deactivate sleep mode by pressing the “Sleep mode”button on the PRA 35 again.After reactivating the PR 35, check the laser settingsin order to ensure accuracy.en13
7.10 Working with the target plateThe target plate improves laser beam visibility. Thetarget plate should be used in bright conditions orwhenever improved laser beam visibility is desired.Simply bring the target plate into the plane of theprojected laser beam. The target plate is made froma material that makes the laser beam more easilyvisible.8. Care and maintenance8.1 Cleaning and drying1. Blow dust off the lenses.2. Do not touch the glass with the fingers.3. Use only a clean, soft cloth for cleaning. If neces-sary, moisten the cloth slightly with pure alcoholor a little water.NOTE Abrasive cleaning materials may scratchthe glass and impair the accuracy of the laser tool.NOTE Do not use any other liquids as these maydamage the plastic components.4. Observe the temperature limits when storing yourequipment. This is particularly important in winter/ summer if the equipment is kept inside a motorvehicle (-30°C to +60°C).8.2 StorageRemove the tool from its case if it has become wet.The tool, its carrying case and accessories shouldbe cleaned and dried (at maximum 40°C / 104°F).Repack the equipment only once it is completely dry.Check the accuracy of the equipment before it is usedafter a long period of storage or transportation.Remove the batteries from the tool before storing itfor a long period. Leaking batteries may damage thetool.Store the tool in the Hilti toolbox in a dry place.8.3 TransportUse the Hilti toolbox or packaging of equivalent qualityfor transporting or shipping your equipment.CAUTIONAlways remove the batteries before shipping thetool.8.4 Hilti Calibration ServiceWe recommend that the tool is checked by the HiltiCalibration Service at regular intervals in order toverify its reliability in accordance with standards andlegal requirements.Use can be made of the Hilti Calibration Serviceat any time, but checking at least once a year isrecommended.The Calibration Service provides confirmation that thetool is in conformance, on the day it is tested, withthe specifications given in the operating instructions.The tool will be readjusted if deviations from themanufacturer’s specification are found. After check-ing and adjustment, a calibration sticker applied tothe tool and a calibration certificate provide writtenverification that the tool operates in accordance withthe manufacturer’s specification.Calibration certificates are always required by com-panies certified according to ISO 900x.Your local Hilti Center or representative will be pleasedto provide further information.8.4.1 Checking accuracyIn order to ensure compliance with the technicalspecifications, the tool should be checked regularly(at least before each major / relevant job).8.4.1.1 Checking the main and transversehorizontal axes 1. Set up the tripod approx. 20 m from a wall andlevel the tripod head with a spirit level.2. Mount the tool on the tripod and use the aimingnotch to aim the tool at the wall.3. Use the receiver to catch the laser beam and marka point (point 1) on the wall.4. Pivot the tool clockwise through 90° about itsown axis. In doing so, ensure that the height ofthe tool does not change.5. Use the laser receiver to catch the laser beam andmark a second point (point 2) on the wall.en14
6. Repeat steps 4 and 5 twice and mark points 3 and4 on the wall with the aid of the laser receiver.When this procedure is carried out carefully, thevertical distance between the two marked points1 and 3 (main axis) or, respectively, points 2 and4 (transverse axis) should be less than 3 mm (at20 m). If the deviation is greater than this, thetool should be returned to a Hilti Service Centerfor calibration.8.4.1.2 Checking the vertical axis  1. Place the tool in the vertical position on a flat floorapprox. 20 m from a wall.2. Adjust the position of the tool so that the gripsare parallel to the wall.3. Switch the tool on and mark the reference point(R) on the floor.4. With the aid of the receiver, mark point (A) at thebase of the wall (set the rotating laser to mediumspeed).5. With the aid of the receiver, mark point (B) at aheight of approx. 10 m.6. Pivot the tool through 180° and realign it with thereference point (R) on the floor and with point (A)at the base of the wall.7. With the aid of the receiver, mark point (C) at aheight of approx. 10 m.NOTE When the procedure has been carriedout carefully, the horizontal distance between thetwo points (B) and (C) marked at a height of 10meters should be less than 1.5 mm (at 10 m). Ifthe deviation is greater: Please return the tool toa Hilti Service Center for calibration.9. TroubleshootingFault Possible cause RemedyThe display shows this symbol The button lock is active. Deactivate the button lock.The display shows this symbol The PRA 35 has not been pairedwith the PR 35.Pair the tools (see section 6.9)The display shows this symbol Invalid entry; the command is notpossible.Press a valid button.The display shows this symbol The command is valid but the tooldoesn’t react.Switch on all tools and makesure they are within wirelesscommunication range.The display shows this symbol No communication between thePR 35 and PRA 35.Check to ensure that there are noobstacles between the tools andthat the maximum wireless commu-nication range is not exceeded. Forgood wireless communication, thePR 35 should be placed ≧10 cm(4 in) above floor level.en15
Fault Possible cause RemedyThe display shows this symbol The tool is in sleep mode (the toolwill remain in sleep mode for max.4 hours).Activate the tool by pressing the“Sleep” button. Activate the toolsettings after activating the tool.The display shows this symbol Fault. Contact Hilti Service.10. DisposalWARNINGImproper disposal of the equipment may have serious consequences:The burning of plastic components generates toxic fumes which may present a health hazard.Batteries may explode if damaged or exposed to very high temperatures, causing poisoning, burns, acid burnsor environmental pollution.Careless disposal may permit unauthorized and improper use of the equipment. This may result in seriouspersonal injury, injury to third parties and pollution of the environment.Most of the materials from which Hilti tools or appliances are manufactured can be recycled. The materials mustbe correctly separated before they can be recycled. In many countries, Hilti has already made arrangementsfor taking back old tools and appliances for recycling. Ask Hilti customer service or your Hilti representativefor further information.For EC countries onlyDisposal of electric tools together with household waste is not permissible.In observance of European Directive 2002/96/EC on waste electrical and electronic equipmentand its implementation in accordance with national law, electric tools that have reached the endof their life must be collected separately and returned to an environmentally compatible recyclingfacility.Dispose of the batteries in accordance with national regulations.en16
11. Manufacturer’s warranty - toolsHilti warrants that the tool supplied is free of defectsin material and workmanship. This warranty is validso long as the tool is operated and handled correctly,cleaned and serviced properly and in accordance withthe Hilti Operating Instructions, and the technicalsystem is maintained. This means that only originalHilti consumables, components and spare parts maybe used in the tool.This warranty provides the free-of-charge repair orreplacement of defective parts only over the entirelifespan of the tool. Parts requiring repair or replace-ment as a result of normal wear and tear are notcovered by this warranty.Additional claims are excluded, unless stringent na-tional rules prohibit such exclusion. In particular,Hilti is not obligated for direct, indirect, incidentalor consequential damages, losses or expenses inconnection with, or by reason of, the use of, orinability to use the tool for any purpose. Impliedwarranties of merchantability or fitness for a par-ticular purpose are specifically excluded.For repair or replacement, send the tool or relatedparts immediately upon discovery of the defect tothe address of the local Hilti marketing organizationprovided.This constitutes Hilti’s entire obligation with regardto warranty and supersedes all prior or contempor-aneous comments and oral or written agreementsconcerning warranties.12. EC declaration of conformityDesignation: Rotating laserType: PR 35Year of design: 2010We declare, on our sole responsibility, that thisproduct complies with the following directives andstandards: EN 300 440‑2, EN 301 489‑3 V1.4.1,EN 60950‑1, EN 55014‑1, EN 55014‑2, EN 61000‑3‑2,EN 61000‑3‑3, 2004/108/EC, 2006/42/EC.Hilti CorporationDietmar Sartor Tassilo DeinzerHead of BA Quality and ProcessManagementHead BU Measuring SystemsBusiness Area Electric Tools & Ac-cessoriesBU Measuring Systems04 2010 04 2010en17

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