M978 Tanker Maintenance Procedures Instructions (Cont)
PRIMARY PUMP REPAIR.
This task covers:
Oil, lubricating, Item 46, Appendix C
d. Follow-on Maintenance
MOS 63W, Wheel vehicle repairer
TM or Para
TM 9-2320-279-20 Primary pump removed and
on clean work surface.
Solvent, drycleaning, Item 57, Appendix C
Special Environmental Conditions
Adhesive-sealant, silicone, Item 6, Appendix C
Tags, identification, Item 60, Appendix C
Grease, general purpose, lithium base,
General Safety Instructions
Item 36, Appendix C
No smoking, flame, sparks, and hot or glowing
Stock, bar, metal, Item 59, Appendix C
objects within 50 ft (15 m) of vehicle.
Level of Maintenance
Mark position of support flange before
Remove four nuts (1), lockwashers (2),
screws (3), and support flange (4) from
intermediate housing (5).
There are two models of primary pump. Model
A does not include discharge elbow and suction
flange. Model B is supplied with discharge
elbow and suction flange installed. Skip steps
(1.1) and (1.2) and continue to step (2) if
repairing Model A pump. Do steps (1.1) and
(1.2) if repairing Model B pump.
(1.1) Remove four nuts (5.1), discharge
elbow (5.2), and gasket (5.3).
(1.2) Remove four nuts (5.4), suction
flange (5.5), and gasket (5.6).