Vehicle Systems Disassembly & Assembly 51
General Instruction
Cleanliness
1.Cleanliness is the primary means of assuring
satisfactory hydraulic pump life.
Components such as flanges and covers are best
cleansed in soap and hot water, then air dried.
Gears should be washed in solvent, air dried, and
oiled immediately.
Certain cleaning solvents are flammable. Do not
allow sources of ignition in the area when using
cleaning solvents.
2.Protect all exposed surfaces and open cavities
from damage and foreign material.
Gear journals and gear faces are super finished.
Take care not to touch these surfaces after oil and
solvent.
Lubrication of moving parts
During assembly, all running surfaces (Bearing and
wear plate) must be lightly lubricated with a clean oil
or aerosol lubricant.
Tools required for assembly
1. Socket sets
2. Internal snap ring pliers
3. Shaft seal sleeve or clear tape
4. Torque wrench (200lbf ∙ft capacity)
5. Plastic hammer
6. Torque wrench box end adapters
Disassembly Process
Rear section
Loosen and remove the clamp bolts (18) from rear
working section (1).
Related parts
Washer (22), Rear cover (4), Dowel pin(35),
Square-ring (26).
1. Remove driving gear (10), driven gear (12) with
thrust plate parts (8, 23, 29), keeping gear as
straight as possible, and working section (1) also.
Related parts
Back-up ring (29), O-ring (23), Thrust plate (8),
Working body (1), Square ring (26).
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