Slipper Retainers; Valve Plates; Charge Pump Assembly; Bearings (For Replacement See Disassembly And Assembly Section) - Kohler K91 Owner's Manual

Slipper Retainers
Slipper retainers must
be
flat. Examine them care-
fully.
If
bent or worn, replace them.
Valve Plates
Clean valve plates and
check
both sides of the
plates. Remove any burrs or foreign matter from the
steel side of the plate. Check the bronze side of the
plate for scratches and wear.
This
surface must be
smooth and free from scratches. To
check
the surface,
run your fingernail across the plate.
If
wear i s felt,
replace the plate.
FIG.
Inspect Thrust Plates
Charge Pump Assembly
Inspect the gerotor set (internal and external rotors),
and the housing, for wear and scoring. Replace as
required. Note:
The
gerotor set i s a matched unit.
Always replace as an assembly.
If
the charge pump
housing is' worn or scored,
it
must be replaced.
FIG. 44.
Bearings
(for replacement see
Disassembly and
Thrust Plates
Examine the needle bearings in the pump and motor
Assembly
section)
Inspect both thrust plates (for the pump and motor
end caps and replace as required. Examine the ball
swash plates) for flatness, scoring and imbedded
bearings i n the pump and motor housings and replace
material. Replace as required.
as required.
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