Hydraulic Unit
REMOVE
WARNING
Batteries are heavy and can cause personal in-
jury. Use care to avoid injury. DO NOT put hands,
arms, feet, and/or legs between the battery and a
solid object. Make sure the capacity of the crane
and spreader bar is greater than the weight of the
battery. The weight of the battery is normally
shown on the battery case. The maximum battery
weight is shown on the lift truck nameplate. The
spreader bar must NOT be made of metal or it
must have insulated straps.
WARNING
Put blocks under each side of the truck under the
drive unit frame. Position blocks on both sides of
the load wheels. The blocks must prevent the lift
truck from falling and causing personal injury or
property damage.
WARNING
The capacitor in the controller can hold an electri-
cal charge after the battery is disconnected. To
prevent electrical shock and personal injury, dis-
charge the capacitor before inspecting or repair-
ing any component in the drive unit compartment.
Wear safety glasses. Make certain the battery has
been disconnected. Refer to Special Precautions
in this manual.
CAUTION
Make certain the hydraulic cylinder is fully col-
lapsed.
1.
Remove the drive unit compartment cover. Refer
to
AC Motor Repair
0620YRM1513, Accessing
the Drive Unit Compartment.
2.
Disconnect the battery. Use a spreader bar and
lifting device to remove the battery. DO NOT al-
low the battery move from side to side. Make sure
the battery cables have clearance. Refer to:
•
Periodic Maintenance
8000YRM1510
for lift truck model A249
•
Periodic Maintenance
8000YRM1666
for lift truck model A245
3.
Raise the drive wheel off the floor and put blocks
under both sides of the drive unit frame. Refer to:
•
Periodic Maintenance
8000YRM1510
for lift truck model A249
•
Periodic Maintenance
8000YRM1666
for lift truck model A245
4.
Discharge the capacitor. See Special Precau-
tions.
5.
Drain the hydraulic oil from the hydraulic unit into
an appropriate container.
6.
Tag and disconnect all of the electrical wires from
the hydraulic unit.
7.
Remove the hydraulic line from the hydraulic unit.
8.
Loosen and remove the two capscrews attaching
the hydraulic unit to the frame. Remove the hy-
draulic unit and place in a clean work area.
INSTALL
1.
Align the hydraulic unit with the mounting holes in
the frame and install the two capscrews. Tighten
the hydraulic unit mounting capscrews to
35 N•m (26 lbf ft).
2.
Install the hydraulic line to the hydraulic unit.
3.
Connect all the electrical wires to the hydraulic
unit.
4.
Remove the blocks and lower the lift truck to the
floor.
5.
Remove the breather and add the recommended
hydraulic oil until the oil level reaches the full level
mark. Replace the breather. If too much hydraulic
oil is added, the oil will leak from the breather dur-
ing operation.
6.
Install and connect the battery. Operate the lift
truck until the hydraulic oil reaches operating tem-
perature. Add additional oil if necessary. Check
for hydraulic oil leaks.
7.
Install the drive unit compartment cover. Test the
operation of the lift truck prior to returning the
truck to service.
1900 YRM 1506
Hydraulic Unit
5
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 ...