5-54 4252490-Rev A
HYDROSTATIC POWER TRAIN
5
Inspection Notes
• Keeping parts in assembly order, clean and air dry
each item for inspection.
• Inspect for worn or defective parts.
• Look for metal chips or slivers during cleaning (an
indication of damage to pump or other hydraulic
component).
Assembly Notes
• Assemble charge pump by reversing the order of
disassembly.
• Cover the end of the traction pump shaft extension
(33) with tape before installing the charge pump
housing to prevent damaging the seal (29).
• Apply a thin film of clean hydraulic oil to charge pump
components (31), and charge pump housing (27)
surface, and seal lip (29) before assembly.
Charge Relief Valve
1. Remove plug (38), spring (35), and poppet (34) from
traction pump housing (18). Note the number of
shims (36).
2. Inspect poppet (34) and the seat in housing (18) for
damage, and remove any foreign material. Replace
components as needed.
!
WARNING
NOTICE
3. Clean all parts using clean solvent, and dry using
compressed air.
Inspection Notes
• Keeping parts in assembly order, clean and air dry
each item for inspection.
• Inspect for worn or defective parts.
• Look for metal chips or slivers during cleaning (an
indication of damage to pump or other hydraulic
component).
Assembly Note
Assemble charge relief valve by reversing the order of
disassembly.
Implement Relief Valve
1. Remove plug (22), spring (25), and poppet (26) from
traction pump housing (18). Note the number of
shims (24).
2. Inspect poppet (26) and the seat in housing (18) for
damage, and remove any foreign material. Replace
components as needed.
!
WARNING
NOTICE
3. Clean all parts using clean solvent, and dry using
compressed air.
Inspection Notes
• Keeping parts in assembly order, clean and air dry
each item for inspection.
• Inspect for worn or defective parts.
• Look for metal chips or slivers during cleaning (an
indication of damage to pump or other hydraulic
component).
Assembly Note
Assemble implement relief valve by reversing the order
of disassembly.
Use appropriate eye protection when using
compressed air for cleaning or drying purposes.
Compressed air can cause serious personal
injury. Use safety reduction valves to reduce the
air pressure to a safe level before use.
It is important that all pump parts are absolutely
clean, as contamination can result in serious
damage and/or improper operation.
Never use shop towels or rags to dry parts after
cleaning, as lint may clog passages. Dry parts
using compressed air only.
Use appropriate eye protection when using
compressed air for cleaning or drying purposes.
Compressed air can cause serious personal
injury. Use safety reduction valves to reduce the
air pressure to a safe level before use.
It is important that all pump parts are absolutely
clean, as contamination can result in serious
damage and/or improper operation.
Never use shop towels or rags to dry parts after
cleaning, as lint may clog passages. Dry parts
using compressed air only.
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