CHAPTER 6 8454
6-68
D569-W02 May-2003
B. OPERATION
a. Hydraulic pump delivers constant oil flow to oper-
ate the steering wheel and the hydraulic cylinder,
and the hydraulic pump ass’y is composed of 2
pumps with different displacement respectively.
b. Two pump applicable in the same way are as de-
signed as of the exterior gear to displace the fluid
amount and to transmit the specified fluid amount
for each revolution. Outlet flowing amount increases
as the revolution speed of the pump increases.
c. Hydraulic pump is operated by the cam shaft drive
gear of the engine, and the pump gear (C) turns to
allow the transmission oil to continue flowing in and
out. A vacuum is formed to let oil flow in the pump
(A) when the gear is disconnected. Oil continuously
flows together with the gear as it turns.
569W697A
(1) Flow In the Pump (4) Flow Out of the Pump
(2) Bushing (5) Pump Housing
(3) Gear (6) Drive Shaft
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