TM 10-4320-309-14
TM 4320-14/1
f.
Remove parallel pin (2).
g.
Remove lube oil pump shaft (1B) and outer rotor (1A) from crankcase cover.
INSPECTION:
a.
Clean lube oil pump parts with diesel fuel.
b.
Check that the outside diameter of the outer rotor(1A)isatleast1.138 inches (28.90 mm).
c.
Check that the crankcase cover housing inside diameter is less than 1.149 inches (29.18 mm).
d.
Check that the clearance between housing ID and outer rotor OD is between 0.005-0.011 inch
(0.120-0.280 mm).
e.
Check that outer rotor and inner rotor width is at least 0.311 inch (7.90 mm).
f.
Check that the crankcase cover housing depth is less than 0.319 inch (8.10 mm).
g.
Check that the clearance between the inner and outer rotor is less than 0.010 inch (0.25 mm).
REPAIR:
a.
Replace lube oil pump if the OD of the outer rotor is less than 1.138 inches (28.9 mm).
b. Replace crankcase cover if the housing ID is greater than 1.149 inches (29.18 mm).
c.
Replace the lube oil pump if the clearance between housing ID and outer rotor OD is greater than 0.011
inch (0.280 mm).
d. Replace lube oil pump if the outer and inner rotor width is less than 0.311 inch (7.9 mm).
e.
Replace crankcase cover if the housing depth is greater than 0.319 inch (8.1 mm).
f.
Replace lube oil pump if the clearance between the inner and outer rotor is less than 0.010 inch (0.25
mm).
INSTALLATION:
Figure 5-15. Installation of Lubricating Oil Pump
a.
Insert lubricating oil pump assembly (1) from the outside of the crankcase cover. Coat the rotor with oil
before installing the cover.
b.
Insert parallel pin (2) into the lubricating oil pump shaft (1B). (Refer to Figure 5-14)
c.
Insert spindle (7) (refer to Figure 5-14) into the weight on governor gear (3), then push the spindle onto
the shaft. Ensure that gear is firmly inserted onto pin (2).
5-18
