MANUAL STEERING (RIGHT TURN)
GENERAL
NEUTRAL
SAFETY FIRST
STEERING SYSTEM - STRUCTURE AND OPERATING PRINCIPLE
U
U
O
110 kgf/cm
R52W907C
R52W908C
The steering wheel should be forced to be turned in some occasions, for example, when the engine does not start or the hydraulic pump is damaged. When turning the steering wheel to the right, not only the sleeve and spool rotate, but also the Gerotor pump rotates. In this state, the oil passage is formed by the sleeve and spool as the power steering operation. As the Gerotor pump is rotated by force from an operator, the oil flows as shown in the circuit diagram. At this time, there is no oil supplied to the port (P). Therefore, the oil drained from the steering cylinder is not led to the port (T), but is recirculated by the check valve, forming one closed circuit for manual steering.
A/C AND INDEX HEATER
HYDRAULIC ELECTRIC & DIAGNOSIS SYSTEM
HYDRAULIC STEERING SYSTEM
FRONT STEERING AXLE SYSTEM
When turning the steering wheel and holding it in that position, the sleeve, which is fixed to the steering wheel, stops simultaneously with the steering wheel, but the spool, which was turning 10 to 15° behind the sleeve, turns 10 to 15° further and then stops. This is due to the force of the leaf spring installed to the sleeve and spool. In this state, the oil passage to the steering cylinder through the Gerotor between the spool and sleeve is blocked, but the oil passage to return the oil from the steering unit is opened. Therefore, the hydraulic oil supplied through the port (P) is returned through the port (T) and the cylinder stops its operation.
TRANSMI HST
S
REAR HSTAXLE
S
REAR BRAKE AXLE
110 kgf/cm
2
Dealer Copy -- Not forSSION Resale
W +7 0
2
FRONT BRAKE AXLE
W +7 0
TRANSMISSION TRANSMI SSION
CLUTCH
ENGINE
O
DR72-W00
267 of 450
10-9
