Contents

Technical data

• Steering gear, general
• General
• Steering box
• General
• Tightening torques
• Steering pump
• General
• Tightening torques
• Pipes / reservoir and slave cylinder
• Tightening torques
• Front axle and leading rear axle
• General
• Tightening torques
• Steered trailing swivel axle
• General
• Tightening torques

Diagnostics

• Steering gear, general
• Fault-finding table

Steering gear, general

• Safety instructions
• Safety instructions
• General
• Overview drawing, single circuit system
• Overview drawing, single-circuit system with slave cylinder
• Overview drawing, dual-circuit system
• Overview drawing, dual-circuit system with slave cylinder
• System description, single-circuit system
• System description, single-circuit system with slave cylinder
• System description, dual-circuit system
• System description, dual-circuit system with slave cylinder
• Inspection and adjustment
• Inspection of the steering gear using a pressure gauge
• Inspection of steering gear using the test case
• Inspection of second circuit of the dual-circuit system
• Inspection of steering box attachment
• Inspection of hydraulic centre position
• Checking fastening of universal joint to steering box input shaft
• Draining and filling
• Draining and filling/bleeding the single circuit steering system
• Draining and filling/bleeding the dual-circuit system
• Draining and filling/bleeding the steering system with EMAS-controlled trailing axle

Steering box

• Safety instructions
• Safety instructions
• General
• Overview drawing, steering box
• Operation of the steering box
• Inspection and adjustment
• Inspection and adjustment, wheel deflection limiting valves
• Inspection and adjustment, pressure point
• Inspection, sector shaft sealing ring leaks
• Inspection, internal steering box resistance
• Inspection, pitman arm part number
• Removal and installation
• Removal and installation, entire steering box
• Removal and installation, steering bracket
• Removal and installation, pitman arm
• Removal and installation, input shaft seal
• Removal and installation, sector shaft oil seal in the side cover
• Removal and installation, sector shaft oil seal on the pitman arm side
• Removal and installation, pressure-limiting valve

Steering pump

• General
• Overview drawing, steering pump LUK VT72A, VT77 and LF77
• Overview drawing, emergency steering pump
• Operation of the steering pump
• Operation of emergency steering pump
• Inspection and adjustment
• Inspection, flow control valve LUK VT72A, VT77 and LF77
• Inspection, flow control valve ZF 7685
• Removal and installation
• Removal and installation, steering pump LUK VT77 and LF77
• Removal and installation, steering pump LUK VT72A
• Removal and installation, steering pump ZF 7685
• Removal and installation, emergency steering pump

Pipes / reservoir and slave cylinder

• General
• Lines
• Operation of the reservoir
• Inspection and adjustment
• Inspection of steering oil level
• Inspection of line
• Removal and installation
• Removal and installation, plastic reservoir filter element
• Removal and installation, steel reservoir filter element
• Removal and installation, reservoir
• Removal and installation, lines
• Removal and installation, slave cylinder

Front axle / leading rear axle

• General
• Overview drawing, wheel hub
• Overview drawing, front axle swivel axle
• Overview drawing, leading rear axle swivel axle
• Description of wheel hub unit
• Description of wheel settings
• Inspection and adjustment
• Inspection and adjustment, swivel axle play
• Inspection and adjustment, caster
• Inspection of camber angle and king pin inclination
• Inspection and adjustment, toe
• Inspection and adjustment, wheel deflection
• Inspection of toe-out when turning
• Inspection and adjustment, steering rod
• Inspection and adjustment, steerable front axles and leading rear axle alignment
• Inspection of the steering ball joint
• Inspection of axle housing
• Inspection of wheel rim
• Inspection of wheel speed sensor ring
• Removal and installation
• Removal and installation, wheel
• Removal and installation, steering rod
• Removal and installation, track rod
• Removal and installation, track rod arm and steering rod arm
• Removal and installation, wheel hub unit
• Removal and installation, wheel speed sensor ring
• Removal and installation, wheel speed sensor
• Removal and installation, front axle swivel axle
• Removal and installation, leading rear axle swivel axle
• Removal and installation, thrust bearing, split version
• Removal and installation, thrust bearing, assembled version
• Removal and installation, needle bearings
• Removal and installation, idler arm

Steered trailing swivel axle

• General
• Overview drawing, wheel hub
• Overview drawing, swivel axle
• Description of wheel hub unit
• Description of wheel settings
• Inspection and adjustment
• Inspection and adjustment, swivel axle play
• Inspection and adjustment, caster
• Inspection of camber angle and king pin inclination
• Inspection and adjustment, toe
• Inspection and adjustment, alignment
• Inspection of the steering ball joint
• Inspection of axle housing
• Inspection of wheel rim
• Removal and installation
• Removal and installation, wheel
• Removal and installation, track rod
• Removal and installation, track rod arm and steering cylinder arm
• Removal and installation, wheel hub unit
• Removal and installation, swivel axle
• Removal and installation, thrust bearing, split version
• Removal and installation, thrust bearing, assembled version
• Removal and installation, needle bearings