Kohler Command PRO Service Manual page 62

Disassembly/Inspection and Service
Remove Breather Assembly
1. Remove fasteners securing breather assembly,
breather adapter (style based on spec), and gaskets
to crankcase.
2. Carefully break gasket seals and remove all parts.
Do not pry on sealing surfaces as it could cause
damage resulting in leaks. Note assembly and
orientation of parts.
Remove Oil Reservoir and Pickup Screen
1. Remove screws securing oil reservoir and gasket to
engine.
2. Remove mounting screw and carefully work pickup
screen off end of pickup tube.
Remove Closure Plate Assembly
1. Remove screws securing closure plate to crankcase.
2. Locate protruding tabs on closure plate. Carefully
tap to break gasket seal. Do not pry on sealing
surfaces as this could cause leaks. Separate closure
plate from crankcase. Remove old gasket.
Inspection
Inspect oil seal in closure plate and remove it if worn or
damaged.
Inspect crankshaft bearing surface for wear or damage.
Replace bearing or closure plate assembly if required.
Oil Pump Assembly
Disassembly
1. Remove screws securing oil pump housing including
relief valve baffle and clamp for pickup tube.
2. Remove oil pump housing and pickup tube from
closure plate.
3. Remove oil pump gerotor gears from closure plate
recess.
4. Remove oil pickup by pulling it free from oil pump
body.
5. Relief valve is a one-piece style, staked to oil pump
housing; removal should not be attempted, nor is
internal servicing possible. If a problem with relief
valve is encountered, oil pump should be replaced.
Inspection
Inspect oil pump housing, gerotor gears, and closure
plate recess for nicks, burrs, wear, or any visible
damage. Inspect inlet seal for pickup tube in housing. If
any parts are worn or damaged, replace seal, oil pump
or closure plate as required.
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Reassembly
Torque Sequence
1. Make sure recess in closure plate for oil pump
2. Lubricate oil pump gerotor gears with grease
3. Lightly lubricate with oil and install inlet seal into oil
4. Install O-ring in groove of oil pump housing. Use a
5. Lightly lubricate I.D. of inlet seal with oil and carefully
6. Install oil pump housing with pickup tube, over oil
7. Install clamp for pickup tube and finger tighten
8. Torque clamp (pickup tube) mounting screw to
KohlerEngines.com
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1
gerotor gears is clean.
(Lubriplate 100 or equivalent), and install into
®
recess.
pump housing until it is fully seated.
small quantity of grease to hold it in place.
insert ferruled end of pickup tube through grommet,
into oil pump housing. Position pickup tube so
outboard end faces up.
pump boss and gears. Position relief valve baffle on
screw locations 2 and 3. Align all 3 screw locations.
screw. Check alignment of parts and torque oil pump
housing screws to 9.9 N·m (88 in. lb.) using
sequence below:
a. Install fastener into location 1 and lightly tighten
to position pump.
b. Install fastener into location 2 and fully torque to
recommended value.
c. Install fastener into location 3 and fully torque to
recommended value.
d. Finish torquing fastener in location 1 to
recommended value.
11.3 N·m (100 in. lb.) into new hole or 7.7 N·m
(68 in. lb.) into used hole.
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62 690 01 Rev. J