3-6. HIGH PRESSURE PUMP. This task covers:
Tools, see TM 10-4610-232-12, Appx B,
Sec III, Ref Code (No.)
High pressure pump removed from ROWPU.
Tool Kit, General Mechanics Automotive (1)
Pump drive sheave removed (para. 2-77).
Stuffing boxes removed from pump (para. 2-78).
Solvent, Cleaning (Appx B, Sec II, Item 32)
General Safety Instructions:
Rubber Gloves (Appx B, Sec II, Item 43)
Observe specific Warning in text.
To prevent unnecessary down time, valves, packings, and other wear items should be
replaced while doing drive end maintenance.
a. Remove oil level sight gage ( 1, Figure 3-6) and remove sixteen capscrews (2). Remove cover (3) and gasket (4).
The caps and connecting rods are coded and must always be assembled as matched
b. Remove nuts (5) and caps (6) from connecting rods (7).
c. Remove sleeve bearings (8) from the connecting rods (7) and caps (6).
Be careful not to damage crankshaft or cross head bores when positioning connect-
d. Position the connecting rods (7) at the top dead center to provide clearance for removal of the crankshaft.
Crankshaft should be handled carefully when removing bearing housing to keep
from damaging or scarring the crankshaft or pump case.
If necessary, tap bearing housings with a rubber mallet to ease removal. Keep shims
with their respective housings for use at assembly.
e. Remove six capscrews (10 and 11), bearing housings (12 and 13), gaskets (14) and shims (15).
Be careful to prevent damaging crankshaft.
f. Carefully remove crankshaft (16), through opening in side of case, and bearing races (17 and 18).