Kohler Command PRO ECH630 Service Manual page 125

Relief Valve
Figure 9-15. Oil Pump, Oil Pickup, and One-Piece
Relief Valve.
Inspection
Inspect the oil pump housing, gear, and rotors for
nicks, burrs, wear, or any visible damage. If any parts
are worn or damaged, replace the oil pump.
Reassembly
1. Install the oil pickup to the oil pump body.
Lubricate the O-ring with oil and make sure it
remains in the groove as the pickup is being
installed.
2. Install the rotor.
3. Install the oil pump body to the closure plate and
secure with the two hex fl ange screws. Torque
the hex fl ange screws as follows:
a. Install fastener into location No. 1 and lightly
tighten to position pump. See Figure 9-16.
b. Install fastener into location No. 2 and fully
torque to the recommended value. See Figure
9-16.
c. Torque fastener in location No. 1 to the
recommended value. See Figure 9-16.
Pickup First Time Installation: 10.7 N·m (95 in. lb.)
All Reinstallations:
Figure 9-16. Oil Pump Torque Sequence.
4. Aft er torquing, rotate the gear and check for
freedom of movement. Make sure there is no
binding. If binding occurs, loosen the screws,
reposition the pump, retorque the hex fl ange
screws and recheck the movement.
Governor Cross Shaft Oil Seal
If the governor cross shaft seal is damaged and/or
leaks, replace it using the following procedure.
Remove the oil seal from the crankcase and replace
it with a new one. Install the new seal to the depth
shown in Figure 9-17 using a seal installer.
2.0 mm (0.0787 in.)
Figure 9-17. Installing Cross Shaft Oil Seal.
Inspection and Reconditioning
6.7 N·m (60 in. lb.)
Governor Cross
Shaft Seal
Section 9
9
9.13