5-52 4203780 First Edition
HYDROSTATIC POWER TRAIN
5
NOTICE
IMPORTANT
Do not disassemble the rotating assembly (9). If parts
are worn or damaged, replace the entire rotating
assembly.
1. Disassemble traction pump as shown in Figure 5-48
on page 5-51.
2. Place parts in assembly order on a clean work area
as they are removed.
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).
• Inspect all parts for cracks, nicks, burrs, and
excessive wear. Inspect for scoring, galling, and
scratches on surfaces. Replace parts as necessary.
Assembly Notes
• Assemble the pump by reversing the order of
disassembly.
• Lubricate all O-rings prior to assembly.
• Install new O-rings and seals. Use clean grease to
keep seals in position.
• It is important that motor parts are marked
and placed in assembly order to aid in
assembly.
• 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.
Required Materials
Overhaul Seal and Gasket Kit (Jacobsen PN 557446)
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