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Workman HD Series Page 9 − 47 Hydraulic System
The two section gear pump assembly used on Workman
HDX and HDX−D vehicle equipped with the High Flow
Hydraulics Kit is shown (Fig. 34). The first section of the
pump (drive end) is identical in form and function to the
Primary Hydraulic System Gear Pump. When servicing
this gear pump, follow the procedure for the Primary Hy-
draulic System Gear Pump Service in this section and
observe the following:
1. Do not mix components from one pump section to the
other.
2. The two section High Flow Hydraulic System gear
pump supplies oil flow for two circuits and uses two sep-
arate reservoirs and oil types (Fig. 35). The front pump
section (drive end) uses oil from the transaxle (Dexron
III ATF). The rear pump section uses oil from the High
Flow Hydraulics Kit reservoir (hydraulic oil). During gear
pump assembly, lubricate front section components with
clean Dexron III ATF and rear section components with
clean hydraulic oil.
1. Gear pump
2. Suction hose from transaxle (Dexron III ATF)
3. Suction hose from reservoir (hydraulic oil)
Figure 35
3
2
1
FRONT
RIGHT
Hydraulic
System