Hunter Engineering 45-1281 XF4 2.4GHz Radio Module User Manual CERTIFICATE OF COMPLIANCE

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Document Title	CERTIFICATE OF COMPLIANCE
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Rhein Tech Laboratories, Inc.
360 Herndon Parkway
Suite 1400
Herndon, VA 20170
http://www.rheintech.com
Appendix L:
Client:
Model:
Standards:
ID’s:
Report #:
Hunter Engineering Company
45-1281
FCC 15.247/IC RSS-210
LS3-45-1281/2938A-451281
2009249
Manual
Please refer to the following pages.
Page 43 of 53
OPERATION INSTRUCTIONS
PRELIMINARY Form 6093-T, 09-09
BETA - WS602 Series
Wheel Alignment Sensors
© Copyright 2009 Hunter Engineering Company
Contents
1.
GETTING STARTED..................................................................................3
1.1 About This Manual ..................................................................................................3
1.2 For Your Safety.......................................................................................................3
Hazard Definitions ..................................................................................................3
1.3 Care and Cleaning of the Sensors..........................................................................4
1.4 XF Pod ....................................................................................................................5
Precautions for Systems Equipped with XF Cordless Sensors .............................5
1.5 Charging Sensor Batteries......................................................................................6
1.6 Vehicle Preparation.................................................................................................9
1.7 Equipment Components and Controls..................................................................10
2.
MOUNTING SENSORS ...........................................................................11
2.1 Mounting Sensors onto Wheel Adaptors ..............................................................11
Wheel Adaptor 175-321-1 with Ratchet Adaptor Locking Lever..........................12
2.2 Mounting Wheel Adaptors onto Wheels ...............................................................14
Wheels with No Rim Lip (Attaching To Outer Rim Lip) ........................................14
Wheels with Rim Lip (Attaching To Inner Rim Lip) ..............................................15
3.
COMPENSATING SENSORS..................................................................17
3.1 General Compensation .........................................................................................17
3.2 Three-Point Compensation...................................................................................17
3.3 Two-Point Compensation .....................................................................................19
3.4 Compensation Recall Mode..................................................................................20
4.
OPERATION INFORMATION ..................................................................21
4.1 Sensor Level Check Procedure ............................................................................21
5.
MAINTENANCE .......................................................................................23
5.1 WS602 Battery Replacement Instructions............................................................23
5.2 WS602 Hot Swap Battery Replacement Instructions ...........................................23
BETA - WS602 Series Wheel Alignment Sensors
Contents • i
ii • Contents
BETA - WS602 Series Wheel Alignment Sensors
1. Getting Started
1.1 About This Manual
This manual contains important operation, maintenance, and safety information for the
WS602 Sensors. It is supplemented by the alignment system console operation manual.
Read and become familiar with the contents of these publications.
A calibrated set of WS602 Sensors can be used with a PA100 series aligner with
Pro-Align software version 1.7.2.113 or greater.
NOTE:
Due to the charging system, only cabinet style aligners may be
used. Wall/column mounted aligners are not supported.
1.2 For Your Safety
Hazard Definitions
Watch for these symbols:
CAUTION:
Hazards or unsafe practices that could result in minor personal
injury or product or property damage.
WARNING: Hazards or unsafe practices that could result in severe
personal injury or death.
DANGER:
Immediate hazards that will result in severe personal injury
or death.
These symbols identify situations that could be detrimental to your safety and/or cause
equipment damage.
BETA - WS602 Series Wheel Alignment Sensors
Getting Started • 3
IMPORTANT SAFETY INSTRUCTIONS
Read all instructions.
Do not operate equipment with a damaged cord or if the equipment has been dropped or
damaged until it has been examined by a qualified service representative.
Do not let cord hang over edge of table, bench, or counter or come in contact with hot
manifolds or moving fan blades.
If an extension cord is necessary, a cord with a current rating equal to or more that that of
the equipment should be used. Cords rated for less current than the equipment may
overheat. Care should be taken to arrange the cord so that it will not be tripped over or
pulled.
Always unplug equipment from electrical outlet when not in use. Never use the cord to
pull the plug from the outlet. Grasp plug and pull to disconnect.
Let equipment cool completely before putting away. Loop cord loosely around equipment
when storing.
To reduce the risk of fire, do not operate equipment near open containers of flammable
liquids (gasoline).
Keep hair, loose clothing, neckties, jewelry, fingers, and all parts of body away from all
moving parts.
To reduce the risk of electrical shock, do not use on wet surfaces or expose to rain.
Use only as described in this manual. Use only the manufacturer’s recommended
attachments.
ALWAYS WEAR OSHA APPROVED SAFETY GLASSES. Eyeglasses that only have
impact resistant lenses are NOT safety glasses.
SAVE THESE INSTRUCTIONS
Read and follow all caution and warning labels affixed to equipment and tools.
Use caution when jacking the vehicle up or down.
Misusing this equipment can shorten the life of the equipment. To prevent accidents
and/or damage to the sensors, use only Hunter recommended accessories.
Remove the sensors from the wheels before moving the vehicle. When sensors are not
in use, store them on the sensor cabinet.
1.3 Care and Cleaning of the Sensors
When cleaning the sensors, use a mild window cleaning solution to wipe off the sensors
and adaptors.
CAUTION:
Do not hose down or submerge the sensors in water. Do not
spray cleaner on the sensor. This could damage the electrical
system and optical components.
Keep wheel adaptor rods cleaned and lubricated. Lubricate as needed with a coating of
light lubricant such as WD-40.
CAUTION:
4 • Getting Started
Do not lubricate the center screw shaft of the wheel adaptor.
BETA - WS602 Series Wheel Alignment Sensors
1.4 XF Pod
The WS602 sensors communicate with the aligner console using Extra High Frequency
(XF). Radio waves are transmitted and received from the sensors and the XF Pod.
Occasionally the XF Pod may receive interference from electronic devices in the
neighborhood (microwaves). The WS602 sensors and XF Pod may be configured to use
different radio frequencies to minimize interference.
The XF system transceiver generates power radio waves in the range of 2.4 GHz. Radio
waves at these frequencies reflect off most objects, resulting in an indoor and outdoor
range of approximately 100 feet (30 meters).
Interference has occurred when the XF Pod does not receive the radio waves. If this
happens, move the mobile cabinet approximately 2 or 3 inches (51 or 76 mm) in any
direction.
Precautions for Systems Equipped with XF Cordless Sensors
The following precautions apply to the XF transceivers installed in the aligner console
and the alignment sensors as part of the XF cordless sensor option.
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interferences
that may cause undesired operation of the device.
WARNING: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference in which case the user will be required to
correct the interference at their own expense.
WARNING: Changes or modifications not expressly approved by the
manufacturer could void the user’s authority to operate the
equipment.
BETA - WS602 Series Wheel Alignment Sensors
Getting Started • 5
1.5 Charging Sensor Batteries
Each sensor contains a 3.6 VDC 5.2 Amp hour sealed NiMM rechargeable battery pack.
To get the maximum life out of the batteries in the sensors, follow these three rules:
1. If the sensors are not in use, charge them.
2. Switch sensors “OFF” during charging if you are using cables.
3. Charge for eleven to thirteen hours, and/or provide an extended charge time
(24 hours or longer) at least once a week.
NOTE:
Make sure the main power switch at the rear of the console is
left “ON” and the outlet that supplies power to the aligner is on.
To prevent premature degradation of battery performance, the charger has to replace
125% of the energy that was removed from the battery. It is not necessary to fully
discharge the batteries before charging. However, it is important they be charged
fully.
Charging information:
To recharge the batteries when the sensors are not in use, place the wheel adaptor
sensor assemblies on the cabinet storage hanger and leave the main aligner power on.
Connect the charging wire harness, 38-1103-2, to the charging port(s) on the sensor(s).
CHARGE INDICATOR
CHARGING PORT
Any time batteries are being charged the charge indicator light on the sensor will be
illuminated.
6 • Getting Started
BETA - WS602 Series Wheel Alignment Sensors
The charge indicator light turning from red to yellow is an indication that the charging
mode has switched from a fast charge mode into a “trickle” charge mode. It does not
mean that the battery is 100% charged. A fully discharged battery should be allowed to
“trickle” charge a minimum of five hours to ensure a full charge. The charge indicator light
turns green after approximately 6-8 hours of trickle, indicating the charger has entered
“float” mode, which maintains the battery at full charge indefinitely.
You should expect at least 8 hours of continuous use from a fully charged battery.
If you are not getting this amount of usage time, the most likely cause is inadequate charging
time.
Batteries that are consistently subjected to partial charging rather than full charge cycles will
permanently lose capacity.
Charging time for a fully discharged battery with the sensor power switch turned “OFF” is 11
to 13 hours. Three or four times this interval would be required if the sensors were left “ON”
during the charge cycle. It is very important that the sensors be turned “OFF” during
charging. The sensor’s power switch is located on the front of the sensor above the two
cable connectors. When the sensor is placed on the storage hanger, it will automatically turn
off.
Charging overnight with the sensors’ power switches set to “OFF” will provide a proper
charge.
Our charging system cannot over-charge the batteries. If you’re not using the sensors,
charge them!
In a shop with extended service hours, there are some things you can do to prolong battery
life:
When the sensors are not being used to perform alignments, they should be stored on the
charging hangers with sensor power switched off. At a minimum, turn the sensors “OFF”
between alignments. Any charging accomplished throughout the day helps maintain the
batteries at peak performance, and helps extend their life.
If you have one day out of the week when alignments are not performed, you can let the
sensors charge continuously for 24 hours or longer. This should “undo” the effects of any
undercharging that occurred during the previous week. This sort of prolonged charging will
only be effective at restoring full capacity to the batteries if performed regularly. Once a week
is the recommended minimum.
When is it time to replace the batteries?
If after a full charge the battery does not last for the expected 8 hours, you should put it
through one or two sessions of extended charge time (24 hours or longer). If the battery does
not recover and start giving satisfactory cycle time, then it should be replaced. The sooner
you catch the batteries losing capacity, the more likely an extended charge time will restore
the battery to normal capacity. If the battery discharge time is only three or four hours, it is
unlikely, that extended charge time will help significantly.
BETA - WS602 Series Wheel Alignment Sensors
Getting Started • 7
Additional information:
Any sensor that is powered up after being off for a while will initially indicate 100% capacity
on the aligner screen. This is not an accurate indication of the charge state of the battery.
The battery has a “surface charge” which dissipates quickly. Within 5 minutes of operation
the on-screen battery level indicator will settle at its true value. The individual wheels on the
screen indicate the actual battery condition and are color-coded. The following is an
indication of battery charging condition:
Green = fully charged or partially charged
Red (with battery recharging icon) = requires charging
The charging circuit has been “fine tuned” to work specifically with Hunter battery pack, part
number 194-27-1. Substituting different batteries is not recommended.
A sensor that is being used, and has a low battery, can retain its measurement data if a “hot
swap” battery replacement is made. Hot swapping the battery requires that the user replaces
the battery, and then tilts the sensor completely forward, then completely backward. The
sensor settings will be restored and the alignment can proceed.
TERMINALS
Battery Pack - Hunter 194-27-1
8 • Getting Started
BETA - WS602 Series Wheel Alignment Sensors
User Battery Replacement:
The batteries in the battery pack may be replaced. When replacing, use six rechargeable
2700 mAH AA NiMH batteries. Replace all batteries in the battery pack at the same time,
with the same type of battery.
Remove the six screws securing the assembly. Remove the battery pack top. Replace
individual batteries and reassemble.
The battery pack must be recharged before use.
1.6 Vehicle Preparation
Drive the vehicle onto the alignment lift/rack until the front wheels are centered on the
turnplates.
Install wheel chocks to prevent the vehicle from rolling.
Raise the front and rear axles off the lift/rack. If your lift/rack does not have front and rear
axle jacks, raise the axle on which you will be performing the alignment.
Lower the lift/rack leveling legs if your lift/rack is so equipped, and then lower the lift/rack
onto the legs. If your lift/rack does not have leveling legs, lower the lift/rack onto the
lift/rack locks.
Check and adjust the tire pressure, inspect for unevenly worn or mismatched tires.
Inspect all suspension and steering linkage components for wear or damage. A thorough
inspection is important.
BETA - WS602 Series Wheel Alignment Sensors
Getting Started • 9
1.7 Equipment Components and Controls
WHEEL ADAPTOR
ADJUSTMENT KNOB
RIM STUDS
SENSOR CONTROLS
SENSOR
LOCKING
KNOB
LEVEL
SENSOR
LOCKING
LEVER
SWITCH
RIM STUDS
CHARGE INDICATOR
CHARGING PORT
LED
INDICATORS
COMPENSATION
BUTTON
WS602
SENSOR CONTROLS
FRONT SENSORS
REAR SENSORS
WS602 SENSORS
10 • Getting Started
BETA - WS602 Series Wheel Alignment Sensors
2. Mounting Sensors
2.1 Mounting Sensors onto Wheel Adaptors
IMPORTANT BETA NOTE:
When using this BETA set of WS602 sensors, the long toe arm
sensors MUST be mounted in the rear. The sensors will not
function correctly if the long toe arm sensors are mounted in the
front.
Production versions of the sensors will allow for front or rear
mounting of the long toe arm sensors, providing the ability to
clear front air dams, rear mud flaps, etc.
Sensors may be mounted on the wheel adaptors before mounting the wheel adaptors on
the vehicle. In some cases, it may be easier to mount the wheel adaptor first and then
mount the sensor onto the adaptor. Either method may be used.
UPPER CASTING
ADAPTOR
LOCKING
LEVER
CENTER CASTING
LOWER CASTING
SENSOR SHAFT
MOUNTING HOLE
If detached, attach the sensor to the wheel adaptor by inserting the sensor mounting
shaft (at the rear of the sensor) into the sensor mounting hole in the middle of the center
casting.
NOTE:
BETA - WS602 Series Wheel Alignment Sensors
The sensor shaft must be fully inserted into the sensor shaft
mounting hole.
Mounting Sensors • 11
CAUTION:
When mounting sensors to the wheel adaptors, the sensor shaft
must be fully seated. Make certain that there is no play or
looseness between the sensor shaft and the wheel adaptor.
Rotate the wheel while holding the sensor. Listen and feel for
movement between the sensor and wheel adaptor. Runout
compensation and alignment accuracy will be adversely affected
if there is any movement between the sensor and wheel adaptor.
Sensors must fit tightly against the surface of the wheel adaptor
or the lock may not hold. This could allow the sensor to fall and
be damaged.
When the sensor is mounted, the sensor locking lever should be rotated using firm hand
pressure. Tools should not be used to force the locking lever. If the lever can be rotated
until it contacts the casting and is not fully locked.
Wheel Adaptor 175-321-1 with Ratchet Adaptor Locking Lever
Rotate locking lever clockwise to tighten. If upper casting prevents rotation of lever, either
expand adaptor to move upper casting or re-position the lever by lifting lever up to
disengage, rotating counter-clockwise, and lowering to re-engage.
Proceed until the shaft is locked tight to adaptor.
With shaft fully locked, re-position the lever to the 9 o’clock position by lifting lever up to
disengage, rotating to 9 o’clock, and lowering to re-engage.
Re-position lever to 9 o’clock
The lever in the 9 o’clock position eliminates possible contact with upper casting or
sensor during alignments.
Operation of Ratchet Adaptor Locking Lever after Initial Setup
To remove the sensor or reposition a target, loosen the lock by turning the lever counterclockwise to the 3 o’clock position.
12 • Mounting Sensors
BETA - WS602 Series Wheel Alignment Sensors
To loosen, turn lever from 9 to 3 o’clock
To lock, turn lever from 3 to 9 o’clock
To lock the sensor or target, tighten the lock by turning the lever clockwise to 9 o’clock
position.
CAUTION:
Failure to follow tightening and loosening procedures may result
in damage to lever. Upper casting can damage lever if contact
occurs when going for a large to small diameter rim. Refer to
figure below.
LOWERING THE
UPPER CASTING
CAN DAMAGE
THE LEVER
WHEN LOCATED
IN THE WRONG
POSITION
BETA - WS602 Series Wheel Alignment Sensors
Mounting Sensors • 13
2.2 Mounting Wheel Adaptors onto Wheels
Wheels with No Rim Lip (Attaching To Outer Rim Lip)
Position the wheel adaptor with the two upper external rim studs on the outside of the
wheel rim.
Align the two lower external rim studs on the outside of the wheel rim and check that all
four rim studs will engage the outside of the wheel rim.
Turn the adaptor adjustment knob to firmly attach the adaptor to the wheel.
ADAPTOR
ADJUSTMENT
KNOB
WHEEL RIM
SPADE SLEEVE
Test the security of the installation by lightly tugging on the wheel adaptor.
CAUTION:
14 • Mounting Sensors
Do not allow the rim studs to slip on the wheel. Runout
compensation and alignment accuracy will be adversely affected
if the wheel adaptor is allowed to slip on the wheel.
BETA - WS602 Series Wheel Alignment Sensors
Wheels with Rim Lip (Attaching To Inner Rim Lip)
Position the wheel adaptor with the two lower rim studs engaging the lower wheel rim lip.
Align the two upper rim studs with the upper wheel rim lip and check that all four studs
will engage the inner portion of the rim lip.
Turn the adaptor adjustment knob to firmly attach the adaptor to the wheel.
ADAPTOR
ADJUSTMENT
KNOB
WHEEL RIM
RIM STUD
Test the security of the installation by tugging on the wheel adaptor.
CAUTION:
Do not use rim studs on alloy or clear coat wheels. Rim studs
can damage these wheels.
CAUTION:
Do not allow the rim studs to slip on the wheel. Runout
compensation and alignment accuracy will be adversely affected
if the wheel adaptor is allowed to slip on the wheel.
BETA - WS602 Series Wheel Alignment Sensors
Mounting Sensors • 15
16 • Mounting Sensors
BETA - WS602 Series Wheel Alignment Sensors
3. Compensating Sensors
3.1 General Compensation
The sensors must be compensated to eliminate errors in angle measurements caused by
runout of the wheel, wheel adaptor, and sensor shaft.
The default setting for the alignment console can be set for either two or three-point
compensation. However, the operator still has the option to override the default setting by
pressing the “2-Point” or “3-Point” Compensation softkey on the “Compensation Control”
screen on the aligner console.
The sensors must be “ON” to compensate.
If a previously compensated sensor should require re-compensation, pressing the sensor
compensate button twice within four seconds will retake the first reading for that sensor.
Do not disturb the sensor until the two outer LED’s respond.
Sensors may be compensated in any order; however, these precautions must be followed:
If a sensor is removed from a wheel, that sensor must be re-compensated when
reinstalled. The other sensors do not need re-compensation.
During two-point compensation and normal operation, be certain no obstructions are
blocking the infrared beams between the sensors. Should a blockage occur, the
affected sensor(s) shown in the illustration on the LCD will flash on and off and the
displayed toe measurement of the sensor(s) will go blank until the obstruction is
cleared.
When compensating sensors that are mounted to the vehicle drive wheels, place
the transmission in NEUTRAL.
The lift/rack should be level on the leveling legs.
3.2 Three-Point Compensation
All sensors need not be mounted before starting compensation. The sensors may be
mounted and compensated individually, or compensation may be performed on 1, 2, 3, or all
4 sensors at once.
Raise either the front or rear axles, or both, while remembering to use the safety on all
jacks.
WARNING: If only one axle is raised, chock wheels on the axle that is
not being raised during compensation, to prevent the
vehicle from rolling.
Turn sensors on if necessary and select any one of the sensors for compensation. The
starting position of the wheel adaptor does not matter. The middle LED will be on.
LED
INDICATORS
COMPENSATION
BUTTON
BETA - WS602 Series Wheel Alignment Sensors
Compensating Sensors • 17
Hand-tighten the sensor lock knob.
Rotate the wheel until the sensor is level (as indicated by the spirit level on top of the
sensor).
Press the compensate button. Do not disturb the sensor until the two outer LED’s begin
to blink and the middle LED turns off, indicating that the measurements have been
stored.
Loosen the sensor lock knob and rotate the wheel 120°, left or right, until the middle LED
turns on. Hand tighten the sensor lock knob and rotate the wheel to level the sensor.
NOTE:
It is recommended that the front wheels of front wheel drive
vehicles be rotated in the forward direction to keep from
disturbing the sensor on the opposite front wheel.
With the middle compensate LED on, press the compensate button. Do not disturb the
sensor until the two outer LED’s begin to blink faster and the middle compensate LED
turns off to indicate that the measurements have been stored.
Loosen the sensor lock knob and rotate the wheel 120° more, until the middle LED turns
on. Hand tighten the sensor lock knob and rotate the wheel to level the sensor.
With the middle LED on, press the compensate button. Do not disturb the sensor. Wait
for the sensor to save the measurement. The two outer LED’s and the middle LED will
stay on.
Loosen the sensor lock knob.
The sensor is now compensated. Repeat this procedure for the remaining sensor(s).
NOTE:
All sensors should be level, but unlocked to minimize tilt of the
sensors. Avoid rapid steering motion that may cause sensors to
swing vertically, which can cause them to come into contact with
the rack, or even dislodge from the wheel.
Remove the lock pins from the turning angle gauges and rear slip plates.
Apply the parking brake and place the transmission in park if applicable.
Lower the vehicle onto the turning angle gauges.
Jounce the vehicle.
Three-Point compensation is complete. The middle LED and two outer LED’s on each
sensor will be on.
After three-point compensation, the wheel may be rotated to any position without
affecting the alignment measurements.
Continue the alignment procedure.
18 • Compensating Sensors
BETA - WS602 Series Wheel Alignment Sensors
3.3 Two-Point Compensation
NOTE:
To compensate the sensors, both the front and rear sensor on
that side of the vehicle must be mounted, and the longitudinal
toe beam must not be obstructed. Do not rotate one wheel while
the measurements are being saved at the other. The preferred
method is to compensate the sensors separately.
Raise either the front or rear wheels of vehicle.
WARNING: Chock wheels on axle that is not being raised during
compensation to prevent vehicle rolling.
Loosen the sensor lock knobs of all the sensors.
Select any one of the sensors for compensation. The middle LED will be on.
Rotate the wheel adaptor to any desired position. Compensation should preferably begin
(and end) with the wheel adaptor in the vertical position to provide a visual indication that
the vehicle wheel has not rotated.
Snug down the sensor lock knob.
Rotate the wheel until the sensor is level (as indicated by the level on top of the sensor).
Press the compensate button. Do not disturb the sensor until the two outer LED’s begins
to flash and the middle LED turns off indicating that the measurement has been saved.
Loosen the sensor lock knob.
Rotate the wheel clockwise 180° until the middle LED comes on. When the middle LED
is on, snug down the sensor lock knob and rotate the wheel to level the sensor.
Press the compensate button. Do not disturb the sensor. Wait for the sensor to save the
measurement. The two outer LED’s and middle LED will stay on, indicating that the
measurement has been saved and compensation is complete.
Loosen the sensor lock knob.
The sensor is now compensated. Repeat this procedure for the remaining sensor(s).
When using the two-point compensation method, the wheel adaptor must remain in the
same rotational position as it was when its compensation was completed. The middle
LED will be on when the wheel is rotated to the correct position.
NOTE:
All sensors should be level, but unlocked (unless directed to
level and lock sensors during the operation sequence) to
minimize tilt of the sensors during caster measurement turn. If
sensors are not locked, then avoid rapid steering motion that
may cause sensors to swing vertically, which can cause them to
come into contact with the rack, or even dislodge from the wheel.
Remove the lock pins from the turning angle gauges and rear slip plates.
Apply the vehicle parking brake and place the transmission in park.
Lower the vehicle onto the turning angle gauges.
Jounce the vehicle.
Two-Point compensation is complete. The middle LED and two outer LED’s on each
sensor will be on.
Continue the alignment procedure.
BETA - WS602 Series Wheel Alignment Sensors
Compensating Sensors • 19
3.4 Compensation Recall Mode
If sensor power is temporarily interrupted after compensation, a short-term backup
memory on the sensor may hold compensation values until power is restored. When
power is restored, the sensor will indicate that it has valid compensation values by
illuminating the middle compensation indicator while flashing the two outer compensation
indicators. If the sensor has not been dismounted from the vehicle wheel, the
compensation procedure does not have to be repeated. Compensation can be restored
by unlocking the lock knob and tilting the sensor in either direction until the two outer
indicators stop flashing and stay on. Afterwards, restore the sensor to its original position.
If re-compensation is required, pressing the compensation button twice within four
seconds will retake the first reading for that sensor. Refer to the compensation section for
complete compensation procedure.
20 • Compensating Sensors
BETA - WS602 Series Wheel Alignment Sensors
4. Operation Information
4.1 Sensor Level Check Procedure
To achieve an accurate alignment, it is important that the sensors hang level when the
sensor lock knob is loosened. A sensor must be balanced correctly to hang level.
To check the balance of a sensor:
Mount the sensor on a wheel adaptor.
Mount the wheel adaptor onto a wheel without connecting the sensor cable.
With the sensor lock knob loosened, wait until the sensor does not rock on
the wheel adaptor.
Observe the level in the sensor.
If the bubble is in the center of the level, as shown below, the sensor is
balanced.
NOTE:
A level reminder icon will appear on the vehicle plan view
indicator when a sensor is severely out of level.
BUBBLE
If the bubble is off to one side of the level, as shown below, the sensor must
be adjusted to restore the sensor to level.
BUBBLE
To balance sensors, loosen the screws securing the weight to the toe arm. Slide the
weight in the proper direction to center the bubble in the level.
LOOSEN
SLIDE
Contact your local Hunter Service Representative if you need assistance with
balancing adjustments.
BETA - WS602 Series Wheel Alignment Sensors
Operation Information • 21
22 • Operation Information
BETA - WS602 Series Wheel Alignment Sensors
5. Maintenance
5.1 WS602 Battery Replacement Instructions
This procedure provides instructions for replacing the battery pack in WS602 wireless
sensors.
Remove the battery as follows:
1. Depress the upper and lower release buttons on the battery cover and
remove.
2. Tilt sensor back and remove battery.
Replace the battery as follows:
1. Insert the battery with the positive terminal on top.
2. Replace the battery cover.
BATTERY CAP
BATTERY
TERMINAL
5.2 WS602 Hot Swap Battery Replacement Instructions
This procedure provides instructions for hot swapping the battery pack in
WS602 wireless sensors during an alignment procedure. Hot swapping the battery will
recall/retain the information in the sensor if the alignment procedure is still in progress.
If the sensor was compensated prior to swapping the battery, the sensor will indicate it by
illuminating the middle compensation indicator while flashing the two outer compensation
indicators.
1. Remove and replace the battery as described above.
2. Restore the sensor to its original position.
BETA - WS602 Series Wheel Alignment Sensors
Maintenance • 23
HUNTER RESEARCH AND TRAINING
CENTER
HUNTER . . . dedicated to service excellence through professional training
HUNTER TRAINING - Hunter operates the most advanced, up-to-date
Training Center in the industry today.
The courses have been designed to meet the needs of new and
experienced technicians who want to increase their mechanical and
diagnostic capabilities. The low student-teacher ratio (average 7 to 1)
and the emphasis on “hands-on” training (80% time in shop) create an
excellent learning environment.
Align 1 (Basic Alignment Theory and Practice)
3 day / 24 hrs
Highlights of the Hunter Training Center include:
‰ An instruction staff with over 100 years of shop, field, and teaching
experience.
‰ Fully-equipped service bays.
‰ Classrooms equipped with modern teaching aids.
‰ The most up-to-date wheel alignment, balancing service and brake
equipment on the market today.
Align 2 (Advanced theory / Aftermarket Adjustment)
2-day / 16 hrs
Students will learn basic wheel alignment service through classroom and
hands-on practice. Pre-alignment services, wheel alignment angle theory
and wheel alignment equipment operation are the focus of this course.
Basic wheel alignment adjustments will be demonstrated and students
will practice on vehicles in a shop environment.
Modified vehicle wheel alignment is the focus of this course. Students
learn how to use alignment angles to achieve vehicle handling
performance in conjunction with ride height kits and modified tire/wheel
packages. Aftermarket alignment adjustment kits are discussed and
demonstrated.
Align 3 (Advanced Diagnostics and OE Procedures)
Performance Tire (Basic and Advanced Tire Changing)
2-day / 16 hrs
1-day 8 hrs
This class focuses on using advanced diagnostic angles and
measurements to determine damaged suspension and steering
components. Techniques used in finding damaged parts are reinforced
with classroom scenarios and hands-on labs designed to both challenge
and further embed these much needed skills.
Students will learn basic terminology and theory related to servicing tires
and wheels. Students learn the proper techniques for changing tires on
tulip clamp and table top tire changer designs. This course covers the
proper tire changing techniques for low profile tires, run flat designs, and
tire/wheel assemblies using TPMS.
GSP9700 Certification
Rolling Smooth (Basic & Advanced vibration theory)
2-days / 16 hrs
This course combines the Rolling Smooth course with a certification
program for Hunter Engineering’s GSP9700 Road Force Measurement
system. Students use hands-on practice with the GSP9700 to gain a
proficiency level acceptable to be deemed certified.
HDT Alignment 1 (Fundamental Alignment)
3-day / 24 hrs
Classroom and shop practice is used to teach the basic elements of
Class 8 truck wheel alignment. Students will learn the proper method to
measure and correct the required basic alignment angles using state of
the art equipment. Trailer alignment is included.
1-day / 8 hrs
This course offers a study of vehicle vibration specific to wheel speed.
The student will learn basic vibration terminology and vibration theory,
Shop activities include the measurement of Road Force Variation, wheel
runout and balance. Additional diagnostic tools are discussed.
HDT Alignment 2 (Advanced Alignment)
2-day / 16hrs
The student will understand the cause and affect of basic alignment
angles relative to ride quality, performance and tire life. Classroom and
shop practice are used to learn the proper use of diagnostic alignment
angles. Additional adjustment techniques and alignment system
operation are explored in both the classroom and lab environment.
Busses and RVs are discussed.
Hunter University’s eLearning courses are designed for all student levels and can be used
as an integral supplement to instructor-led training courses. In-depth information, detailed
graphics, video and modular segments assist the participant in expanding their knowledge
base at a self-determined level. Go to www.hunter.com and click on TRAINING.
For further information about other classes offered or to schedule into a class,
simply call the Hunter Research and Training Center at 1-800-448-6848.

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