URAL Motorcycles 4320M, Operation Manual, Page: 4 / 321

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Contents
Introduction.............................................................................................................................. 5
1 Safety Requirements and Warning........................................................................................ 7
1.1 Safety Requirements............................................................................................ 7
1.2 Warnings.............................................................................................................. 9
2 Technical Specifications........................................................................................................ 12
2.1 Technical Specifications of 6х6 Trucks with Conventional Cab ........................... 12
2.2 Technical Specifications of Chassis of 6х6 Truck with Conventional Cab............ 15
2.3 Technical Specifications of 6х6 Cabover Trucks .................................................. 18
2.4 Technical Specifications of Chassis of 6х6 Cabover Trucks ................................. 22
2.5 Technical Specifications of 4x4 Trucks and Chassis.............................................. 25
2.6 Dimensions of 6x6 and 4x4 Trucks and Chassis………………………………… 28
3 Control Tools and Devices..................................................................................................... 36
3.1 Control Tools and Instrumentation of Conventional Cab Trucks........................... 36
3.2
Control Tools and Instrumentation of Cabover
Trucks.......................................................................................................................................
40
3.3 Subscription Station……………………………………………………………… 43
4 Truck Components' Structure and Operation Description, their Adjustment and Mainte-
nance.........................................................................................................................................
46
4.1 Engine..................................................................................................................... 46
4.1.1 Feed System......................................................................................................... 46
4.1.2 The Engine Starting Heater System..................................................................... 50
4.1.3 Gas Exhaust System............................................................................................. 51
4.1.4 Cooling System.................................................................................................... 52
4.1.5 Power Unit Suspension........................................................................................ 55
4.1.6 Engine Idle Adjustment....................................................................................... 56
4.2 Transmission....................................................................................................................... 58
4.2.1 Clutch Control with Air-Over Hydraulic Booster............................................... 58
4.2.2 Wabco Air-Over Hydraulic Booster Construction and Operation……………... 62
4.2.3 Gearbox................................................................................................................ 65
4.2.4 Transfer Box........................................................................................................ 66
4.2.5 Driveline.............................................................................................................. 71
4.2.6 Driving Axles...................................................................................................... 74
4.3 Undercarriage...................................................................................................................... 82
4.3.1 Frame................................................................................................................... 82
4.3.2 Truck Suspension................................................................................................. 83
4.3.3 Wheels and Tires.................................................................................................. 90
4.3.4 Spare Wheel Holder............................................................................................. 100
4.4 Steering wheel..................................................................................................................... 102
4.4.1 Steer..................................................................................................................... 102
4.4.2 Booster................................................................................................................. 103
4.4.3 Steering Wheel Oil Tank..................................................................................... 105
4.4.4 Steering Wheel Hydraulic Booster Pump............................................................ 105
4.4.5 Tie Rod Ends....................................................................................................... 106
4.4.6 Steering Wheel Maintenance............................................................................... 106
4.5 Brake Systems.................................................................................................................... 109
4.5.1 Primary Brake System......................................................................................... 109
4.5.2 Primary Brake System Pneumatic Drive............................................................. 118