T M 5 - 6 1 1 5 - 5 8 4 - 34
NAVFAC P-8-622-34
T O - 3 5 C 2 - 3 - 4 5 6 - 2
T M - 0 5 6 8 C - 34
Figure 7-19. Oil Pump Removal (Sheet 2 of 2)
b. Remove.
(1) Remove generator, engine flywheel, and
adapter.
(2) Unscrew recessed plug (1, figure 7-20) in
rear bearing plate (4).
(3) Lift out by-pass spring (2, figure 7-20) and
valve plunger (3).
Figure 7-20. Oil By-pass Valve
c. Cleaning and Inspection.
(1) Thoroughly clean spring (2, figure 7-20) and
plunger (3). Replace defective or worn parts.
d. Test. Determine proper valve operation by check-
ing spring and plunger against the following values.
(1) Plunger diameter should be 0.3365 inch to
0.3380 inch.
(2) Spring free length should be 2-5/16 inches ±
1/16 inch. Spring force should be 2.25 ± 0.11 pounds
when spring- is compressed to a
inches.
e. Installation.
(1) Assemble spring (2, figure
(3) and install in bearing plate (4).
(2) Install plug (l).
7-14. GEAR COVER ASSEMBLY.
a. Inspect (see figure 7-21).
length of 1-3/16
7-20) and plunger
(1) The governor shaft is supported by two sets
of needle bearings and should not show signs of bind-
ing when rotated through its free travel.
(2) The oil seal should be inspected for leaks and
damage.
b. Removal.
(1) Refer to Operator and organization~
Maintenance Manual and remove starter lockout
switch. Remove governor arm (3, figure 7-2) by
loosening screw (3, figure 7-22).
(2) Refer to Operator and Organizational
Maintenance Manual and remove blower housing.
(3) Refer to paragraphs 7-7 and 7-8 and remove
blower wheel and stator.
(4) Remove screw from oil filter adapter. Re-
move screws (1, figure 7-21), lockwasher (2), flat-
washer (3), screw (4), lockwasher (5) holding gear
7 - 2 1
