S20 Service Manual Tennant Battery Rider Floor Sweeper
2018-06-12
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S20 (Electric) Sweeper Service Information Manual SweepSmartt System ShakeMaxt 360 North America / International www.tennantco.com 9006709 Rev. 00 (11-2009) *9006709* B A Ref o Y 1 2 3 4 5 D6 Part No. Serial Number Description 82681 63810 51839 49263 82556 (000000--) (000000--) (000000--) (000000--) (000000---001039 ) Bracket Wldt, Lpg Mount Latch Assy, Lpg Tank Mtg, W/Nut Nut Adjustable, Lpg Tank Mtg Tie, Cable Bracket, Vaporizer 1 4 2 3 1 54930 (000000--- Vaporizer, LPG 1 C ) FOR REPLACEMENT PARTS Identify machine model and serial number. 1. (A) Identify the machine model. 2. (B) Identify the machine serial number from the data plate. Refer to the TENNANT Parts Manual. NOTE: Only use TENNANT Company supplied or equivalent parts. Parts and supplies may be ordered online, by phone, by fax or by mail. Read this manual completely and understand the machine before operating or servicing it. This machine will provide excellent service. However, the best results will be obtained at minimum costs if: S The machine is operated with reasonable care. S The machine is maintained regularly - per the machine maintenance instructions provided. S The machine is maintained with manufacturer supplied or equivalent parts. PROTECT THE ENVIRONMENT Please dispose of packaging materials, old machine components such as batteries, hazardous fluids, including antifreeze and oil, in an environmentally safe way according to local waste disposal regulations. Always remember to recycle. Qty. MACHINE DATA Please fill out at time of installation for future reference. Model No. -Serial No. -Machine Options -Sales Rep. -Sales Rep. phone no. -Customer Number -Installation Date -- Tennant Company PO Box 1452 Minneapolis, MN 55440 Phone: (800) 553--8033 or (763) 513--2850 www.tennantco.com Thermo--Sentry, Perma--Filter, InstantAccess, Lower Total Cost of Ownership, and Duramer are US registered and unregistered trademarks of Tennant Company. Specifications and parts are subject to change without notice. Original Instructions, Copyright E 2009 TENNANT Company, Printed in U.S.A. S20 ELECTRIC TABLE OF CONTENTS SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL MACHINE INFORMATION . . . . . . . . . . . . . . . . . . . . . vii 1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL MACHINE DIMENSIONS/CAPACITIES . . . . . . . . . . GENERAL MACHINE PERFORMANCE . . . . . . . . . . . . . . . . . . . . POWER TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BRAKING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MACHINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . COMPONENT LOCATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SYMBOL DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 2 3 3 3 3 3 4 5 6 MAINTENANCE & REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DUST FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REPLACING THE HOPPER DUST FILTER . . . . . . . . . . . . . . . . . HOPPER DUST FILTER MEASUREMENT . . . . . . . . . . . . . . . . . FILTER SEAL HEIGHT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 9 10 10 11 11 HYDRAULIC TROUBLESHOOTING INFORMATION . . . . . . . . . . . GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HYDRAULIC SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OVERALL HYDRAULIC HOSE DIAGRAM . . . . . . . . . . . . . . . . . . SIDE BRUSH ON (STANDARD) . . . . . . . . . . . . . . . . . . . . . . . . . . . SIDE BRUSHES ON (WITH OPTIONAL LEFT SIDE BRUSH) . SIDE BRUSH(ES) DOES NOT TURN ON . . . . . . . . . . . . . . . . . . SIDE BRUSH(ES)DOES NOT TURN OFF . . . . . . . . . . . . . . . . . . HOPPER DOOR OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOES NOT OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOOR CLOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOOR DOES NOT CLOSE . . . . . . . . . . . . . . . . . . . . . . HOPPER DOOR DOES NOT STAY CLOSED . . . . . . . . . . . . . . . HOPPER LIFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOES NOT RAISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOES NOT STAY IN RAISED POSITION . . . . . . . . . . 12 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 HYDRAULIC TROUBLESHOOTING INFORMATION . . . . . . . . . . . . . . iv 12 HOPPER LOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HOPPER DOES NOT LOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEERING SYSTEM -- RIGHT TURN . . . . . . . . . . . . . . . . . . . . . STEERING SYSTEM -- LEFT TURN . . . . . . . . . . . . . . . . . . . . . . . STEERING SYSTEM NOT WORKING PROPERLY . . . . . . . . . . 30 31 32 33 34 ELECTRICAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ELECTRICAL CONTROL BOX GROUP . . . . . . . . . . . . . . . . . . . . ELECTRICAL SCHEMATIC FIG 1 . . . . . . . . . . . . . . . . . . . . . . . . . ELECTRICAL SCHEMATIC FIG 2 . . . . . . . . . . . . . . . . . . . . . . . . . ELECRICAL SCHEMATIC FIG. 3 . . . . . . . . . . . . . . . . . . . . . . . . . . ELECTRICAL SCHEMATIC FIG. 4 . . . . . . . . . . . . . . . . . . . . . . . . 35 36 37 38 39 40 v vi S20 Service Information SAFETY PRECAUTIONS The following precautions are used throughout this manual as indicated in their description: WARNING: To warn of hazards or unsafe practices that could result in severe personal injury or death. CAUTION: To warn of unsafe practices that could result in minor or moderate personal injury. FOR SAFETY: To identify actions that must be followed for safe operation of equipment. Do not use the machine other than described in this Operator Manual. The machine is not designed for use on public roads. The following information signals potentially dangerous conditions to the operator or equipment: WARNING: Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away. Keep covers open when charging. WARNING: Lift arm pinch point. Stay clear of hopper lift arms. WARNING: Raised hopper may fall. Engage hopper support bar. WARNING: Moving belt and fan. Keep away. 2. Before starting machine: -- Make sure all safety devices are in place and operate properly. -- Check brakes and steering for proper operation. -- Adjust seat and fasten seat belt (if so equipped). 3. When starting machine: -- Keep foot on brake and directional pedal in neutral. 4. When using machine: -- Do not pick up burning or smoking debris, such as cigarettes, matches or hot ashes -- Use brakes to stop machine. -- Go slow on inclines and slippery surfaces. -- Use care when reversing machine. -- Move machine with care when hopper is raised. -- Make sure adequate clearance is available before raising hopper. -- Do not raise hopper when machine is on an incline. -- Do not carry passengers on machine. -- Always follow safety and traffic rules. -- Report machine damage or faulty operation immediately. 5. Before leaving or servicing machine: -- Stop on level surface. -- Set parking brake. -- Turn off machine and remove key. WARNING: Machine can emit excessive noise. Hearing loss can result. Wear hearing protection. (Cab option only). WARNING: Accident may occur. Do not operate vacuum wand while driving. (Vacuum wand option only) FOR SAFETY: 1. Do not operate machine: -- Unless trained and authorized. -- Unless operator manual is read and understood. -- If it is not in proper operating condition. -- In flammable or explosive areas. -- In areas with possible falling objects unless equipped with overhead guard. S20 Electric 9006709 (11--09) vii S20 Service Information 6. When servicing machine: -- Avoid moving parts. Do not wear loose clothing or jewelry. -- Block machine tires before jacking machine up. -- Jack machine up at designated locations only. Support machine with jack stands. -- Use hoist or jack that will support the weight of the machine. -- Wear eye and ear protection when using pressurized air or water. -- Disconnect battery connections before working on machine. -- Avoid contact with battery acid. -- Use cardboard to locate leaking hydraulic fluid under pressure. -- Use Tennant supplied or approved replacement parts. 7. When loading/unloading machine onto/off truck or trailer: -- Turn off machine. -- Use truck or trailer that will support the weight of the machine. -- Use winch. Do not drive the machine onto/off the truck or trailer unless the load height is 380 mm (15 in) or less from the ground. -- Set parking brake after machine is loaded. -- Block machine tires. -- Tie machine down to truck or trailer. viii S20 Electric 9006709 (11--09) S20 Service Information The following safety labels are mounted on the machine in the locations indicated. If any label becomes damaged or illegible, install a new label in its place. HOPPER LIFT ARMS LABEL -Located on both hopper lift arms. RAISED HOPPER LABEL -- Located on the hopper support bar. HEARING PROTECTION LABEL -- Located only on machines with cab option. FAN AND BELT LABEL -Located on belt guard. 354590 S20 Electric 9006709 (11--09) ix S20 Service Information FOR SAFETY LABEL -Located on the side of the operator compartment. BATTERY CHARGING LABEL -- Located on back of main electrical panel. VACUUM WAND LABEL -- Located on the optional vacuum wand. 354590 x S20 Electric 9006709 (11--09) S20 Service Information GENERAL MACHINE INFORMATION BEFORE CONDUCTING TESTS: * Read and Follow ALL Safety Warnings and Precautions as mentioned at the beginning of this manual * Always unhook Battery when removing or replacing components DURING TESTS: * If Diagnostic Time Exceeds One Hour With Unknown Cause or Course of Action, Call Technical Services. S20 Electric 9006709(11--09) 1 S20 Service Information SPECIFICATIONS GENERAL MACHINE DIMENSIONS/CAPACITIES Item Dimension/capacity Length 2090 mm (82.3 in) Length with side brush 2248 mm (88.5 in) Width 1230 mm (48.5 in) Width with side brush 1395 mm (55 in) Height without overhead guard 1260 mm (49.5 in) Height with overhead guard 2085 mm (82.1 in) Track 1135 mm (44.7 in) Wheelbase 1135 mm (44.7 in) Main sweeping brush diameter 355 mm (14 in) Main sweeping brush length 910 mm (36 in) Side brush diameter 580 mm (23 in) Sweeping path width with side brush 1270 mm (50 in) Sweeping path width with dual side brushes 1575 mm (62 in) Main sweeping brush pattern width 50 to 75 mm (2 to 3 in) Hopper weight capacity 295 kg (650 lb) Hopper volume capacity 310 L (11 ft3) Dust filter area 7.4 m2 (80 ft2) Minimum ceiling dump height 2490 mm (98 in) Weight -- without batteries 1045 kg (2300 lb) Weight -- with batteries 1350 kg (2975 lb) GVWR (Gross Vehicle Weight Rating) 2028 kg (4470 lb) Operating sound level at operator ear N/A Vibration level at steering wheel does not exceed 2.5 m/s@ GENERAL MACHINE PERFORMANCE Item Measure Maximum forward speed 8 km/h (5 mph) Maximum reverse speed 4.8 km/h (3 mph) Minimum aisle turn width, left 2415 mm (95 in) Minimum turning radius, right 2113 mm (83.2 in) Minimum turning radius, left 1625 mm (64 in) Maximum rated incline with empty hopper 10_ Maximum rated incline with full hopper 8_ 2 / 17.6% / 14.1% S20 Electric 9006709 (11--09) S20 Service Information POWER TYPE Type Batteries Quantity 6 2 2 Type Electric Motors Use Propelling Accessory Type Chargers VDC 36 36 36 36 36 36 Volts 6 18 18 A 50 75 75 50 75 45 Ah Rating 315 @ hr rate 340 @ hr rate 440 @ hr rate Weight 58 kg (127 lb) 245 kg (540 lb) 299 kg (660 lb) VDC 36 36 Kw (hp) 1.6 (2.1) 3 (4) Hz 60 60 60 50 50 50/60 Phase 1 1 3 1 3 1 VAC 240 variable variable 230 variable variable STEERING Type Power source Emergency steering Rear wheel, hydraulic cylinder and rotary valve controlled Hydraulic accessory pump Manual HYDRAULIC SYSTEM System Capacity Hydraulic reservoir 10.6 L (2.8 gal) Hydraulic total 12.1 L (3.2 gal) Propelling gearbox 2.6 L (2.7 qt) Fluid Type TENNANT part no. 65870 SAE 90 Gear weight lubricant BRAKING SYSTEM Type Service brakes Parking brake Operation Mechanical drum brakes (2), one per front wheel, cable actuated Utilizes service brakes, cable actuated TIRES Location Front (2) Rear (1) S20 Electric 9006709(11--09) Type Solid Solid Size 89 x 410 mm (3.5 X 16 in) 102 x 410 mm (4 x 16 in) 3 S20 Service Information MACHINE DIMENSIONS 5 1230 mm (48.5 in) TOP VIEW 2085 mm (82.1 in) 2 1260 mm (49.5 in) 3&4 1 6 2090 mm (82.3 in) FRONT VIEW SIDE VIEW Numbering above refers to component locations shown on next page. 354901 4 S20 Electric 9006709 (11--09) S20 Service Information COMPONENT LOCATOR 1 4 3 Front Front 2 4 5 Front Front Located under floor panel in operators compartment 1. 2. 3. 4. 5. 6. Fuse & relay panel Steering Valve Horn Hydraulic filter Hydraulic valve Brake light switch S20 Electric 9006709(11--09) 6 Front 5 S20 Service Information SYMBOL DEFINITIONS These symbols identify controls, displays, and features on the machine: Filter shaker 6 Hour meter Vacuum fan on Steering wheel tilt Vacuum fan off Off Hopper down On Hopper up Start Hopper door open Horn Hopper door close (lever) Side brush down and on Main brush down and on Side brush up and off Main brush up and off Operating lights Battery charging system Hazard light Clogged dust filter Side brush pressure Thermo--Sentry Parking brake Hopper door closed (light) Clogged hydraulic filter S20 Electric 9006709 (11--09) S20 Service Information Brush pressure (Increase) Brush pressure (Decrease) Turn counterclockwise Turn clockwise Circuit breaker #1 Circuit breaker #2 Circuit breaker #3 Circuit breaker #4 Circuit breaker #5 Circuit breaker #6 Circuit breaker #7 Circuit breaker #8 Circuit breaker #9 Circuit breaker #10 Circuit breaker #11 Circuit breaker #12 Circuit breaker #13 Circuit breaker #14 Circuit breaker #15 Circuit breaker #16 Circuit breaker #17 Circuit breaker #18 Circuit breaker #19 S20 Electric 9006709(11--09) 7 S20 Service Information FOR OPERATOR AND MAINTENANCE CHARTS, REFER TO OPERATORS MANUAL. 8 S20 Electric 9006709 (11--09) S20 Service Information MAINTENANCE & REPAIR BEFORE CONDUCTING TESTS: * Read and Follow ALL Safety Warnings and Precautions as mentioned at the beginning of this manual * Always unhook Battery when removing or replacing electrical components DURING TESTS: * If Diagnostic Time Exceeds One Hour With Unknown Cause or Course of Action, Call Technical Services. S20 Electric 9006709 (11--09) 9 S20 Service Information HOPPER DUST FILTER 3. Remove the dust filter from the hopper. REPLACING THE HOPPER DUST FILTER Shake the dust filter at the end of every shift and before removing the filter from the machine. Inspect and clean the filter after every 100 hours of operation. Replace damaged dust filters. NOTE: Clean the filter more often if used in extremely dusty conditions. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, and turn off machine. 1. Unlatch and open the hopper cover. Support the hopper cover open with the hopper cover prop rod. 2. Remove the dust filter cover. NOTE: Do not operate filter shaker or raise hopper with dust filter cover removed. Shaker motor damage can occur. 10 4. Clean or discard the dust filter element. Refer to CLEANING THE DUST FILTER. 5. Clean dust and debris from the dust filter tray. 6. Reinstall the dust filter. 7. Reinstall the dust filter cover. 8. Close the hopper cover. S20 Electric 9006709 (11--09) S20 Service Information HOPPER DUST FILTER MEASUREMENT Check 1/8” thick shaker spacer for wear, replace as necessary. With hopper dust filter cover removed and cyclone cover latches locked, check filter seal measurement for proper height. Top of seal should measure 7.62 mm (.25”) above filter cover mounting base, as shown below. This will allow proper sealing of filter with filter cover installed and seal compressed. Rear side of filter box assembly FILTER SEAL HEIGHT ADJUSTMENT Filter Seal Height Adjustment *Safety Note* Cyclone filter box assembly is heavy, assistance recommended for removal. Remove filter box assembly from hopper. With cyclone cover in place and latched, mark seal height measurement at 4 places; RF--LF--RR--and LR areas of filter box. 4 -- M10 screw locations for shaker mounting tray are shown below. Loosen shaker tray mounting bolts and adjust tray to obtain proper seal filter height measurement and tighten as necessary. Reassemble filter box, using new seals as needed. Front side of filter box assembly S20 Electric 9006709 (11--09) 11 S20 Service Information HYDRAULIC TROUBLESHOOTING INFORMATION BEFORE CONDUCTING TESTS: * Read and Follow ALL Safety Warnings and Precautions as mentioned at the beginning of this manual *Hydraulic Oil Must Be At Normal Operating Temperatures after Running Machine and Hydraulics a Minimum of 5 Minutes * Examine Machine For Any Linkage Binding or Mechanical Problems DURING TESTS: * Call Technical Services if Diagnostic Time Exceeds One Hour With Unknown Cause or Course of Action * Maintain Normal Main Brush Pressure as Listed in Operator’s Manual 12 S20 Electric 9006709 (11--09) S20 Service Information NOTE: Troubleshooting charts may be shown with optional equipment. The optional equipment may not be specified in these charts. Some machines may not be equipped with all components shown. S20 Electric 9006709 (11--09) 13 S20 Service Information GENERAL INFORMATION Page 1 of 2 Commonly Used Hydraulic Symbols LINES CONNECTED LINES NOT CONNECTED CASE DRAIN LINE ASSEMBLY PUMP MOTOR ACTIVATED COMPONENT SOLENOID VALVE ENERGIZED COMPONENT MANUAL VALVE NON-- ACTIVE PILOT PORT LINE ACTIVE PILOT PORT LINE RETURN OR LOW PRESSURE LINE HIGH PRESSURE OR FLOW LINE HYDRAULIC FLOW OR MOVEMENT VARIABLE OR PWM CHECK VALVE PILOT PORT CHECK VALVE RELIEF VALVE i QUICK CONNECT TEST PORT RESTRICTOR OR ORIFICE TANK OR RESERVOIR FILTER OR STRAINER ROTATING COMPONENT INFORMATION SUCTION LINE CYLINDER OR RAM SPRING LOADED CHECK VALVE ! WARNING EXAMPLES Energized Solenoid Valve Non--energized Solenoid Valve Valve position for indicated circuit 14 S20 Electric 9006709 (11--09) S20 Service Information General Information Page 2 of 2 Hydraulic Pump Flow Rates (typical) ACCESSORY PUMPS 5.3 cc (0.323 ci) per rev. 7.4 cc (0.453 ci) per rev. PUMP 1B PUMP 1A MOTOR Commonly Used Abbreviations AUX Auxiliary MFLD Manifold CC Cubic Centimeters MTR Motor CK Check Valve OR Orifice CM Centimeters PC Pilot Port Check Valve CU Cubic PMP Pump CV Control Valve PSI Pounds Per Square Inch CYL Cylinder DC Direct Current PWM Pulse Width Modulation DCn Disconnect (Test Port) RES Reservoir FLTR Filter RH Right Hand GPM Gallons Per Minute HTX Heat Exchanger RV Relief Valve Inches SC Spring Loaded Check Valve IN PSWITCH Pressure Switch RPM kPa KiloPascals LH Left Hand SV Solenoid Valve Liters Per Minute SW Switch LPM M STRN Revolutions Per Minute Motor (Combustion) V Strainer Volts Hydraulic Manifold Port Markings C Cylinder Connection G Test Port M Motor Connection S20 Electric 9006709 (11--09) P PS T Pump Connection Pressure Switch Connection Tank Connection 15 S20 Service Information HYDRAULIC SCHEMATIC 16 S20 Electric 9006709 (11--09) S20 Service Information OVERALL HYDRAULIC HOSE DIAGRAM 7 18 5 4 17 B PB T C3 P1 A P2 10 2 3 IN 6 11 BYD A C D B 14 OUT IN OUT 2 9 8 13 1 L T R P 15 RESERVOIR 16 S20 Electric 9006709 (11--09) 12 17 S20 Service Information SIDE BRUSH ON (STANDARD) Conditions: Key ON, Side Brush Lowered TO CV2 HOPPER 15.5 BAR (225 PSI) CV8 SOLENOID VALVE MANIFOLD B VALVE MANIFOLD 12.5 LPM (3.3 GPM) A RIGHT SIDE BRUSH MOTOR SV1 MTR 1 85 RPM +/-- 10 RPM T RV2 89.6 BAR CK1 RV1 (1300 psi) PB (900 psi) 62 BAR TEST PORT 15.5 BAR (225 PSI) G2 G1 P2 P1 STEERING VALVE CV3 ASSEMBLY PUMP PUMP 1B 1A 5.2 LPM (1.4 GPM) TEST PORT 15.5 BAR (225 PSI) P 7.3 LPM (1.9 GPM) T MOTOR MOTOR TURNS PUMPS @ 1000 RPM 3.4 BAR (50 psi) RV4 STRN 1 i PRESSURE READINGS BASED ON HYDRAULIC OIL FLT R PRESSURE SWITCH 2.8 BAR (40 psi) TEMPERATURE OF 65.5_C (150_F) RESERVOIR 18 S20 Electric 9006709 (11--09) S20 Service Information SIDE BRUSHES ON (WITH OPTIONAL LEFT SIDE BRUSH) Conditions: Key ON, Side Brushes Lowered TO CV2 HOPPER VALVE MANIFOLD 15.5 BAR (225 PSI) 31 BAR (450 PSI) 12.5 LPM (3.3 GPM) 12.5 LPM (3.3 GPM) B CV8 SOLENOID VALVE MANIFOLD A MTR1 RIGHT SIDE SV1 BRUSH MOTOR 85 RPM +/-- 10 RPM MTR2 LEFT SIDE BRUSH MOTOR 85 RPM +/-- 10 RPM T CYL4 LEFT SIDE BRUSH CYLINDER SV3 LIFT/LOWER C2 C1 OR1 0.89 mm (0.035 in) RV2 LOWER (1300 psi) 89.6 BAR CK1 RV1 PB TEST PORT G2 G1 62 BAR (900 psi) 31 BAR (450 PSI) P1 P2 5.2 LPM (1.4 GPM) P TEST PORT 31 BAR (450 PSI) CV3 STEERING VALV ASSEMBLY E (1.9 GPM) 7.3 LPM MOTOR PUMP PUMP 1B MOTOR TURNS PUMPS @ 1000 RPM 3.4 BAR (50 psi) RV4 STRN1 i T 1A PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) PRESSURE SWITCH FLT 2.8 BAR (40 R psi) RESERVOIR S20 Electric 9006709 (11--09) 19 S20 Service Information SIDE BRUSH(ES) DOES NOT TURN ON 20 S20 Electric 9006709 (11--09) S20 Service Information SIDE BRUSH(ES)DOES NOT TURN OFF S20 Electric 9006709 (11--09) 21 S20 Service Information HOPPER DOOR OPEN CV3 STEERING VALVE ASSEMBLY T P OUT HOPPER VALVE MANIFOLD C BYD CV2 D HOPPER LIFT TO CYL2 HOPPER LIFT CYLINDER A CK3 HOPPER DOOR B OPEN CYL1 HOPPER DOOR CYLINDER CK2 TO MTR1 SIDE BRUSH MOTOR IN SV1 CV8 SOLENOID VALVE MANIFOLD B A C3 T RV2 TEST PORT 62 BAR (900 psi) CK1 89.6 BAR (1300 psi) RV1 PB 3.4 BAR (50 psi) G2 P2 G1 P1 5.2 LPM (1.4 GPM) PUMP 1A STRN 1 RV4 MOTOR P1 PUMP 1B TEST PORT TURNS PUMPS @ 1000 RPM 7.3 LPM (1.9 GPM) FLTR PRESSURE SWITCH 2.8 BAR (40 psi) i RESERVOIR 22 PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) S20 Electric 9006709 (11--09) S20 Service Information HOPPER DOES NOT OPEN S20 Electric 9006709 (11--09) 23 S20 Service Information HOPPER DOOR CLOSE CV3 STEERING VALVE ASSEMBLY HOPPER - Surface area differential in hydraulic cylinder causes Hopper Door Cylinder to extend When Hopper Door Cylinder reaches the end of travel, Relief Valves (RV1 & RV2) will open to prevent excessive pressure build-- up. T P C BYD CV2 OUT HOPPER MANIFOLD VALVE i- LIFT D LIFT CYLINDER TO CYL2 HOPPER A CLOSE CK3 HOPPER DOOR TO MTR1 SIDE BRUSH MOTOR SV1 CV8 SOLENOID VALVE MANIFOLD B A C3 T RV2 89.6 BAR (1300 psi) 89.6 BAR (1300 psi) (DOOR HELD CLOSED) HOPPER DOOR CYLINDER CK2 IN TEST PORT CYL1 B CK1 RV1 62 BAR (900 psi) PB G2 G1 P1 P2 PUMP 1B MOTOR (1.9 GPM) TURNS PUMPS (900 psi) @ 1000 RPM STRN 1 3.4 BAR (50 psi) (DOOR HELD CLOSED) PUMP 1A 62 BAR 5.2 LPM (1.4 GPM) TEST PORT FLTR PRESSURE SWITCH 2.8 BAR (40 psi) 7.3 LPM i RESERVOIR 24 PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) S20 Electric 9006709 (11--09) S20 Service Information HOPPER DOOR DOES NOT CLOSE S20 Electric 9006709 (11--09) 25 S20 Service Information HOPPER DOOR DOES NOT STAY CLOSED 26 S20 Electric 9006709 (11--09) S20 Service Information HOPPER LIFT - When Hopper Lift Cylinder reaches the end of travel, i CV3 STEERING VALVE ASSEMBLY Relief Valves (RV1 & RV2) will open to prevent excessive pressure build-- up. T P OUT C BYD CV2 HOPPER MANIFOLD VALVE TV1 D 1.2 mm (0.047 in) HOPPER DOOR CYL2 LIFT A CK3 HOPPER LIFT HOPPER LIFT CYLINDER B TO CYL1 HOPPER DOOR CYLINDER CK2 IN CV8 SOLENOID VALVE MANIFOLD TO MTR1 SIDE BRUSH MOTOR B A SV1 T RV2 CK1 89.6 BAR (1300 psi) 62 BAR (900 psi) RV1 G2 TEST PORT (HOPPER HELD RAISED) PB G1 P2 P1 PUMP 1A PUMP 1B 5.2 LPM (HOPPER HELD (1.4 GPM) RAISED) 3.4 BAR (50 psi) TEST PORT RV4 MOTOR 7.3 LPM (1.9 GPM) TURNS PUMPS @ 1000 RPM STRN 1 FLTR PRESSURE SWITCH 2.8 BAR (40 psi) i RESERVOIR S20 Electric 9006709 (11--09) PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65_5 C (150_F) 27 S20 Service Information HOPPER DOES NOT RAISE 28 S20 Electric 9006709 (11--09) S20 Service Information HOPPER DOES NOT STAY IN RAISED POSITION S20 Electric 9006709 (11--09) 29 S20 Service Information HOPPER LOWER i STEERING VALVE CV3 ASSEMBLY T P OUT HOPPER VALVE MANIFOLD Lowering of hopper is due to gravity (weight of hopper) BYD CV2 C 1.2 mm (0.047 in) D HOPPER LOWER TV1 LIFT HOPPER CYL2 A CK3 LOWER TO CYL1 HOPPER DOOR CYLINDER B CYLINDER HOPPER DOOR CK2 TO MTR1 SIDE BRUSH MOTOR IN CV8 SOLENOID VALVE MANIFOLD B A SV1 T RV2 CK 1 89.6 BAR (1300 psi) G2 RV1 P1 P2 62 BAR (900 psi) PB G1 3.4 BAR (50 psi) TEST PORT TEST PORT PUMP PUMP 1B 1A 5.2 LPM (1.4 GPM) RV4 MOTOR 7.3 LPM (1.9 GPM) TURNS PUMPS @ 1000 RPM STRN 1 FLTR PRESSURE SWITCH 2.8 BAR (40 psi) i RESERVOIR 30 PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) S20 Electric 9006709 (11--09) S20 Service Information HOPPER DOES NOT LOWER S20 Electric 9006709 (11--09) 31 S20 Service Information STEERING SYSTEM - RIGHT TURN STEERING WHEEL STEERING VALV ASSEMBLY E T 3.5 BAR (50 PSI) STATIONARY 12 BAR (175 PSI) TURNING 45 BAR (650 PSI) HELD AT STOP CK4 RV3 45 BAR (650 psi) CYL3 RIGHT P HOPPER VALV MANIFOLD E CV3 PMP2 TURN STEERING CYLINDER CV2 BY D Ck4 used for steering fluid supply in the event of main supply pump and/or motor failure. LIFT HOPPER HOPPER DOOR TO MTR1 SIDE BRUSH MOTOR IN CV8 SOLENOID VALVE MANIFOLD B SV1 A T RV2 62 BAR (900 psi) CK1 89.6 BAR (1300 psi) RV1 G1 G2 P1 P2 TEST PORT PB PUMP 1B PUMP 1A TEST PORT 3.4 BAR (50 psi) RV4 MOTOR 7.3 LPM 5.2 LPM (1.4 GPM) (1.9 GPM) TURNS PUMPS @ 1000 RPM FLTR PRESSURE SWITCH 2.8 BAR (40 psi) STRN 1 i RESERVOIR 32 PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) S20 Electric 9006709 (11--09) S20 Service Information STEERING SYSTEM - LEFT TURN STEERING VALVE ASSEMBLY STEERING WHEEL T CV3 3.5 BAR (50 PSI) STATIONARY CK4 12 BAR (175 PSI) TURNING 45 BAR (650 PSI) HELD AT STOP RV3 (650 psi) CYL3 45 BAR LEFT P HOPPER VALVE MANIFOLD HOPPER LIFT BYD CV2 Ck4 used for steering fluid supply in the event of main supply pump and/or motor failure. CV2 HOPPER DOOR TO MTR1 SIDE BRUSH MOTOR IN CV8 SOLENOID VALVE MANIFOLD TURN STEERING CYLINDER PMP2 B B SV1 A T RV2 62 BAR (900 psi) CK1 89.6 BAR (1300 psi) RV1 G2 PB G1 3.4 BAR (50 psi) TEST PORT PUMP 1B P2 5.2 LPM (1.4 GPM) P1 PUMP 1A 7.3 LPM (1.9 GPM) TEST PORT RV4 MOTOR TURNS PUMPS @ 1000 RPM FLTR PRESSURE SWITCH 2.8 BAR (40 psi) STRN 1 i RESERVOIR S20 Electric 9006709 (11--09) PRESSURE READINGS BASED ON HYDRAULIC OIL TEMPERATURE OF 65.5_C (150_F) 33 S20 Service Information STEERING SYSTEM NOT WORKING PROPERLY 34 S20 Electric 9006709 (11--09) S20 Service Information ELECTRICAL INFORMATION BEFORE CONDUCTING TESTS: * Read and Follow ALL Safety Warnings and Precautions as mentioned at the beginning of this manual *Hydraulic Oil Must Be At Normal Operating Temperatures after Running Machine and Hydraulics a Minimum of 5 Minutes * Examine Machine For Any Linkage Binding or Mechanical Problems DURING TESTS: * Call Technical Services if Diagnostic Time Exceeds One Hour With Unknown Cause or Course of Action * Maintain Normal Main Brush Pressure as Listed in Operator’s Manual S20 Electric 9006709 (11--09) 35 S20 Service Information ELECTRICAL CONTROL BOX GROUP Contactor locations M3 80 M4 M4 A2 M3 B-- 100 A2 B+ M2 B-- M-B-- 80 M2 100 M1 36 S20 Electric 9006709 (11--09) S20 Service Information ELECTRICAL SCHEMATIC FIG 1 1 2 3 4 354987, 1048610 -- E S20 Electric 9006709 (11--09) 37 S20 Service Information ELECTRICAL SCHEMATIC FIG 2 1 2 3 4 354987, 1048610 -- E 38 S20 Electric 9006709 (11--09) S20 Service Information ELECRICAL SCHEMATIC FIG. 3 354987, 1048610 -- E S20 Electric 9006709 (11--09) 39 S20 Service Information ELECTRICAL SCHEMATIC FIG. 4 354987, 1048610 -- E 40 S20 Electric 9006709 (11--09)
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