Kohler command pro CH940 Service Manual page 61

Lapping Valves
Reground or new valves must be lapped in, to provide
proper fit. Use a hand valve grinder with a suction cup
for final lapping. Lightly coat valve face with a fine grade
of grinding compound, then rotate valve on its seat with
grinder. Continue grinding until a smooth surface is
obtained on seat and on valve face. Thoroughly clean
cylinder head in soap and hot water to remove all traces
of grinding compound. After drying cylinder head, apply
a light coating of SAE 10 oil to prevent rusting.
Breather/Closure Plate/Oil Reservoir Components
O
P
U
V
A Closure Plate
E
Relief Valve Baffle
I Pickup Screen
Crankshaft Thrust
M Bearing
(Flange PTO)
Q Breather Assembly
U Lifting Strap
62 690 01 Rev. J
T
Q
R
E
D
S
C
A
B
G
H
F
B Gerotor Gears
F
Pickup Tube
J Oil Reservoir
N Closure Plate Gasket
R Breather Gasket
V Oil Seal
Disassembly/Inspection and Service
Valve Stem Seals
These engines use valve stem seals on intake and
exhaust valves. Always use new seals when valves
are removed from cylinder head. Seals should also be
replaced if deteriorated or damaged in any way. Never
reuse an old seal.
N
M
K
L
H
I
J
C Oil Pump O-ring
G
K Drain Plug
O Dipstick
S
Crankshaft
W Non-Thrust Bearing
KohlerEngines.com
W
N
K
D Oil Pump Housing
H
Clamp
L
P
Filter T
(PTO)
Inlet Seal
Gasket
Dipstick Tube
Breather Hose
61