TM 10-4610-241-24
TO 40W4-13-42
3-41. HOUSING AND DRIVE ASSEMBLY (CHEMICAL FEED PUMP) REPAIR.
This task consists of:
a. Disassembly
b. Cleaning
c. Inspection
d. Repair
e. Assembly
INITIAL SET-UP:
Tools Required
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Materials/Parts Required
Solvent, Drycleaning (Appendix C,Section II, Item 18)
Detergent (Appendix C, Section II, Item 5)
Tape, Anti-seize (Appendix C, Section II, Item 19)
Equipment Condition
Reference
Chemical Feed Pump Stroke Adjustment Assemblies removed (Paragraph 3-40).
General Safety Instructions
WARNING
Drycleaning solvent, P-D-680, Cl II, is highly toxic and can ignite
organic materials, nitrates, carbides, and chlorates. Wear eye, skin,
and respiratory protection. Use in a well-ventilated area.
a.
Disassembly.
(1)
Remove plugs (1 and 2) and sight glass (3) from housing (29)
NOTE
Input shaft must be turned clockwise while pulling shaft from housing.
(2)
While turning input shaft (12) pull shaft and attached parts from housing (29).
(3)
Remove roller bearing cup (4) and roller bearing cone (5) from input shaft (12).
(4)
Remove pin (6) from worm gear (7), using drift pin. Remove worm gear from shaft (12).
NOTE
Components may stay with shaft during removal.
(5)
Remove thrust bearing race (8), thrust bearing (9), race (10) and needle bearing (11) from hole in housing (29).
(6)
Remove four screws (13), and lockwashers (14), securing pillow blocks (18 and 22) to housing (29).
(7)
Loosen two setscrews (15) and slide cam (16) off shaft (28).
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