Chapter 8. Power assisted steering system.
SECTION 1. GENERAL DESCRIPTION
The hydraulics of this power-assisted steering system are actuated by a specially designed steering
valve system.
Non Load reaction valve blocks the L,R cylinder ports in neutral condition and does not transmits the
reaction load of the tire to the steering wheel in neutral. Generally the system is used for the vehicles
that treat heavy equipment or low speed traveling.
Hydraulic circuit consists of Independent system.
The oil from tank flows into gear pump of orbitrol via filter, and the quantity of oil in the proportion
to the rotations of steering wheel flows into steering Cylinder Via "R"-port at right turn and via "L"-
port at left turn.
As follow figure shows components composition of power steering system on the vehicle with the
Orbitrol
1.VALVE UNIT , STEERING
2.BOLT , HEX/SP M8x20
3.HOSE ASSY , PUMP
4.HOSE ASSY , DRAIN
5.HOSE ASSY , STEERING
1.CYLINDER ASSY 2.CYLINDER COMP 3.JOINT SET , LH BALL
4.JOINT SET , RH BALL 5.PIN , PARALLEL/A 10X20 6.BOLT , HEX /S M10x75
7.WASHER , PLAIN M14 8.NUT , HEX SLOT & CASTLE M14 9.PIN , SPLIT 2X30
8-1
Fig.8-1
5.HOSE ASSY , STEERING
6.GEAR PUMP
Summary of Contents for T233 HST
Page 14: ...1 11...
Page 15: ...1 12...
Page 22: ...SECTION 3 GEAR TRAIN DIAGRAMS FIG 1 3 GEAR TRAIN DIAGRAM 1 19...
Page 33: ...SECTION 2 OPERATION CHART FOR DISASSEMBLY AND REASSEMBLY BY MAJOR BLOCKS 2 4...
Page 60: ...3 HST main pump case 4 5...
Page 64: ...6 Hydrostatic system schematic 4 8...
Page 100: ...3 Rear transmission case 5 15 Fig 5 23...
Page 121: ...Power Train Diagram Fig 5 60 5 36...
Page 210: ...SECTION 6 WIRING DIAGRAM 10 12...