TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
3-35.
HOUSING (CHEMICAL FEED PUMP) MAINTENANCE.
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 28)
Detergent (Appendix C, Section II, Item 10)
Tape, Anti-seize (Appendix C, Section II, Item 30)
O-ring - ZM-PA-1229-EM-Y
Equipment Condition
Reference
Chemical feed pump removed (para. 2-68).
Chemical feed pump diaphragms removed (para 2-69).
Chemical feed pump electric motor removed (para 2-70)
General Safety Instructions
WARNING
Using drycleaning solvent incorrectly can cause injury or even death.
DISASSEMBLY
a.
Remove oil drain plug (6) and drain oil from chemical feed metering pump (12).
b.
Remove oil fill plug (3) from housing (5).
WARNING
Bearing holder is under spring tension. Use care in removing bearing
holder to prevent personal injury or damage to equipment.
NOTE
There are four diaphragm drive assemblies on the chemical feed
metering pump. All are disassembled the same. One is shown, the
others are similar.
To aid installation, mark position of bearing holder screws before
removal.
c.
Remove two screws (13) and bearing holder (12).
d.
Remove shaft (9), washer (10), and spring (11).
e
Remove key (14) and stop pin (8) from shaft (9).
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