General
WARNING
DO NOT operate a lift truck that needs repairs. If a
repair is necessary, put a DO NOT OPERATE tag
on the control handle. Remove the key from the
key switch.
WARNING
Before performing repairs or adjustments on the
brake system, blocks must be placed under each
side of the frame to raise the drive tire off the
ground. The blocks must prevent the lift truck
from falling and causing personal injury or
property damage. See Periodic Maintenance
8000YRM1510
or
Periodic
Maintenance
8000YRM1666 - How To Put A Lift Truck On
Blocks.
WARNING
Always disconnect and separate the battery
connector so that the connector is completely
free before performing any service or repairs. If
the connector is not completely free, it can
reconnect. Tag the connector: DO NOT
CONNECT.
This section describes the electric brake and outlines
the procedures for the maintenance and repair that
may be required for servicing this truck.
Description
Motorized hand trucks have three methods of braking:
1. Regenerative (Neutral) braking
2. Controlled plugging
3. Application of the spring-applied, electrically-
released friction brake
NOTE:
The preferred method of stopping the truck is:
Regenerative (Neutral) braking
or
Controlled plugging
Regenerative (Neutral) braking applies a retarding
force to the drive wheel through the traction motor, al-
lowing the unit to slow to a gradual stop. It is applied
by returning the speed/direction control to the
NEU-
TRAL
position.
Controlled plugging is reversing the speed/direction
control while traveling, causing the unit to slow to a
stop. Return the speed/direction control to the
NEU-
TRAL
position to remain stopped. If the speed/direc-
tion control is not returned to the
NEUTRAL
position,
the lift truck will accelerate in the opposite direction.
Controlled plugging should stop the truck within one
to one and a half truck lengths, depending on speed
and load.
The brake is designed to hold the truck loaded to ca-
pacity on a 10% grade. The lift truck should be tested
periodically to ensure that the brake is performing to
the proper specifications. See Brake Check in this
section for testing instructions. If the brake does not
release or fails to perform to the necessary require-
ments, the brake assembly must be repaired or re-
placed. Refer to Brake Assembly Repair in this sec-
tion for procedures to repair or replace the brake.
A spring-applied, electrically released friction brake is
mounted to the drive motor. When the brake is ap-
plied, springs inside the brake assembly compress a
rotating friction disk against two stationary plates.
When the brake is released, the brake coil will ener-
gize and pull the armature plate away from the friction
disk, releasing the brake as the drive motor is activa-
ted.
The brake is applied when the control handle arm is
moved to the
BRAKE ON
position, when the truck is
idle for periods of time, or if there is a traction fault.
To release the brake:
1.
Connect the battery.
2.
Turn the key switch to the
ON
position.
1800 YRM 1505
General
1
Summary of Contents for 524150797
Page 1: ...Maintenance METRIC AND INCH SAE FASTENERS PART NO 524150797 8000 YRM 0231 ...
Page 4: ......
Page 8: ...Table 1 Bolts and Screws General 8000 YRM 0231 4 ...
Page 9: ...Table 2 Studs and Nuts 8000 YRM 0231 General 5 ...
Page 10: ...Table 3 Torque Nuts General 8000 YRM 0231 6 ...
Page 11: ...Table 4 Torque Nuts With Nylon Insert 8000 YRM 0231 General 7 ...
Page 20: ...NOTES 16 ...
Page 21: ......
Page 22: ...8000 YRM 0231 12 18 8 16 10 15 3 15 10 13 12 04 ...
Page 23: ...Maintenance INDUSTRIAL BATTERY PART NO 524158040 2240 YRM 0001 ...
Page 26: ......
Page 47: ......
Page 48: ...2240 YRM 0001 10 18 2 18 8 16 7 16 1 16 9 15 ...
Page 49: ...Maintenance AC MOTOR REPAIR MP20 A249 MPB045VG A245 PART NO 550036879 0620 YRM 1513 ...
Page 52: ......
Page 58: ...Figure 5 Traction Motor Repair A245 AC Motor Repair 0620 YRM 1513 6 ...
Page 62: ...NOTES 10 ...
Page 63: ......
Page 64: ...0620 YRM 1513 3 15 12 13 4 12 ...
Page 65: ...Maintenance MASTER DRIVE UNIT MP20 A249 MPB045VG A245 PART NO 550036880 0630 YRM 1503 ...
Page 68: ......
Page 75: ......
Page 76: ...0630 YRM 1503 3 15 12 13 4 12 ...
Page 77: ...Maintenance STEERING MECHANISM MP20 A249 MPB045VG A245 PART NO 550036881 1600 YRM 1504 ...
Page 80: ......
Page 83: ...Figure 2 Control Handle Assembly Lift Truck Models MP20 A249 1600 YRM 1504 Control Handle 3 ...
Page 86: ...Figure 4 Delivery Handle Optional Control Handle 1600 YRM 1504 6 ...
Page 91: ......
Page 92: ...1600 YRM 1504 12 18 11 17 7 16 3 15 12 13 4 12 ...
Page 93: ...Maintenance BRAKES MP20 A249 MPB045VG A245 PART NO 550036882 1800 YRM 1505 ...
Page 96: ......
Page 104: ...NOTES 8 ...
Page 105: ......
Page 106: ...1800 YRM 1505 3 15 12 13 4 12 ...
Page 107: ...Maintenance HYDRAULIC SYSTEM MP20 A249 MPB045VG A245 PART NO 550036883 1900 YRM 1506 ...
Page 110: ......
Page 117: ...Figure 4 Hydraulic Unit A249 1900 YRM 1506 Hydraulic Pump 7 ...
Page 127: ......
Page 128: ...1900 YRM 1506 2 15 12 13 4 12 ...
Page 129: ...Maintenance ELECTRICAL SYSTEM MP20 A249 MPB045VG A245 PART NO 550036885 2200 YRM 1508 ...
Page 163: ......
Page 164: ...2200 YRM 1508 6 18 11 16 10 16 8 16 4 15 12 14 ...
Page 165: ...Maintenance LIFTING MECHANISM MP20 A249 MPB045VG A245 PART NO 550036886 4000 YRM 1509 ...
Page 168: ......
Page 180: ...NOTES 12 ...
Page 181: ......
Page 186: ......
Page 192: ...NOTES 6 ...
Page 193: ......
Page 194: ...8000 YRM 1511 6 16 3 16 12 13 4 12 ...
Page 195: ...Maintenance DIAGRAMS MP20 A249 MP045VG A245 PART NO 550036889 8000 YRM 1512 ...
Page 198: ......
Page 201: ...Figure 1 Schematic Wiring Diagram Pallet Truck Sheet 2 of 3 8000 YRM 1512 General Notes 3 ...
Page 202: ...Figure 1 Schematic Wiring Diagram Pallet Truck Sheet 3 of 3 General Notes 8000 YRM 1512 4 ...
Page 203: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 1 of 7 8000 YRM 1512 General Notes 5 ...
Page 204: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 2 of 7 General Notes 8000 YRM 1512 6 ...
Page 205: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 3 of 7 8000 YRM 1512 General Notes 7 ...
Page 206: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 4 of 7 General Notes 8000 YRM 1512 8 ...
Page 207: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 5 of 7 8000 YRM 1512 General Notes 9 ...
Page 208: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 6 of 7 General Notes 8000 YRM 1512 10 ...
Page 209: ...Figure 2 Schematic Wiring Diagram Premium Walkie Sheet 7 of 7 8000 YRM 1512 General Notes 11 ...
Page 210: ...NOTES 12 ...
Page 211: ......
Page 212: ...8000 YRM 1512 3 18 12 14 1 14 12 13 7 13 4 12 ...
Page 213: ...Maintenance FRAME MPB045VG A245 PART NO 550093874 0100 YRM 1665 ...
Page 216: ......
Page 222: ...NOTES 6 ...
Page 223: ......
Page 224: ...0100 YRM 1665 7 16 12 13 ...
Page 225: ...Maintenance PERIODIC MAINTENANCE MPB045VG A245 PART NO 550093875 8000 YRM 1666 ...
Page 228: ......
Page 248: ...NOTES 20 ...
Page 249: ......
Page 250: ...8000 YRM 1666 3 19 2 19 10 15 6 15 3 15 12 13 ...
Page 251: ...Maintenance CONTROLLER DIAGNOSTICS MPB045VG A245 PART NO 550095689 9000 YRM 1671 ...
Page 337: ......
Page 342: ......
Page 349: ...Figure 6 Battery Charger Diagram GPT 2240 YRM 1890 Charging and Troubleshooting 7 ...
Page 360: ...NOTES 18 ...
Page 361: ......
Page 362: ...2240 YRM 1890 3 19 11 16 10 16 3 16 10 15 9 15 ...
Page 366: ......
Page 380: ...NOTES 14 ...
Page 381: ......
Page 382: ...2200 YRM 2030 6 17 11 16 10 16 ...