Vehicle Systems
Index
3
Index
Specification ............................................ 5
Control Valve ............................................................ 5
Hydraulic Pump ........................................................ 6
Sideshift Cylinder ...................................................... 6
Lift Cylinders ............................................................. 7
Standard ................................................................ 7
Full Free Triple and Full Free Lift Primary ............ 7
Full Free Lift Secondary ........................................ 8
Full Free Triple Lift Secondary .............................. 8
Tilt Cylinder ............................................................... 9
Steering Wheel ....................................................... 10
Priority Valve ........................................................... 10
Steering Unit ........................................................... 11
Forward and Reverse Control Group ..................... 12
Brake – SHOE ........................................................ 12
Delayed Engine Shutdown System ........................ 13
Operation ............................................................ 13
Diagram of Delayed Engine Shutdown System .. 14
Trouble shooting of Delayed Engine Shutdown
System ................................................................ 15
Diagnostic Fault Codes ....................................... 15
Delayed Engine Shutdown System Schematic ... 16
Delayed Engine Shutdown System Schematic ... 16
Delayed Engine Shutdown System Schematic ... 17
OSS (Operator Sensing System) ........................... 20
Operation ............................................................ 20
Symbols of OSS .................................................. 20
Operator Sensing System Schematic ................. 21
Trouble shooting of Operator Sensing System ... 22
Hydraulic System Operation ................. 24
Hydraulic Schematic ........................................... 24
Control Valve .......................................................... 26
External View ...................................................... 26
Circuit Schematic ................................................ 26
Inlet Section ........................................................ 27
Lift Section .......................................................... 28
Tilt Section .......................................................... 30
Auxiliary Section .................................................. 31
Outlet Section ...................................................... 32
Relief Valve ......................................................... 33
Hydraulic Steering system ...................................... 34
Hydraulic Schematic ........................................... 34
Steering Cylinder ................................................. 35
Steering Unit ...................................................... 36
Brake System ........................................................ 38
Master Cylinder .................................................. 38
Shoe Type Brakes .............................................. 39
Parking Brake ..................................................... 39
Testing and Adjusting ........................... 41
Troubleshooting ..................................................... 41
Visual Checks .................................................... 41
Performance Tests ............................................. 41
Hydraulic System and Mast ............................... 42
Steering System ................................................. 47
Brake System ..................................................... 48
Lift Cylinders Air Removal .................................. 50
Hydraulic System ................................................... 51
Relief Valve Pressure Check ............................. 51
Lift Relief Valve Check and Adjusment .............. 52
Tilt and Auxiliary Relief Valve Check and
Adjusment .......................................................... 53
Steering System .................................................... 53
Steer Wheel Bearing Adjustment -Pneumatic .... 53
Steer Axle Stop Adjustment-Pneumatic ............. 54
Steer Wheel Bearing Adjustment-Cushion ........ 54
Steer Axle Stop Adjustment-Cushion ................. 55
Steering System Air Removal ............................ 55
Steering System Pressure Check ...................... 56
Brake System ........................................................ 58
Brake System Air Removal ................................ 58
Pedal Adjustment for Brake & Inching ............... 58
Parking Brake Test ............................................. 60
Parking Brake Adjustment.................................. 60
