CHAPTER 8 8354/8404
8-6
D615-W02 May-2003
615W805A
(1) Inflow to Pump (4) Outflow From Pump
(2) Bushing (5) Pump Housing
(3) Gear (6) Drive Shaft
3.4 OPERATION
a. Hydraulic pump provides constant oil flow to oper-
ate the steering wheel, and hydraulic cylinder. The
hydraulic pump assembly consists of two pumps
having different displacement.
b. Two pumps operate equally and use outside gear
design to move the amount of fluid determined at
each rotation and positive displacement.
c. Oil inflow and outflow continues while driving hy-
draulic pump from engine cam shaft, drive gear,
and rotating pump gear (3). When gear is
disconnected, a vacuum will be made to enable oil
inflow (1) to pump. As gear is rotated, oil continues
to flow.
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