TM-3-1040-279-12-P

GENERATOR SET, SMOKE, MECHANICAL: PULSE JET, M157 W/120 GAL FOG OIL TANK AND W/80 GAL FOG OIL TANK

TECHNICAL MANUAL; OPERATOR’S AND ORGANIZATIONAL MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST AND DEPOT MAINTENANCE REPAIR PARTS

MAY 1987

  TM-3-1040-279-12-P - Page 216 of 389

TM 3-1040-279-12&P
4-34 FOG OIL PUMP.
This task covers replacement of Gear Rotor Set.
INITIAL SETUP
Tools
General Mechanic’s Automotive Tool Kit
SC 5180-90-CL-N26
Equipment Condition
General Safety Instructions
Fog oil is very slippery. Clean up all spills
immediately to prevent injury to personnel.
Fog oil pump removed from fog oil pump
assembly (P. 4-142).
REMOVAL
1.
2.
NOTE
Scribe mark on mechanical housing and inside wall of pump motor housing
before removal.
Remove four screws (1) securing mechanical housing (2).
Carefully tap mechanical housing end of pump (3) on a block of wood and remove mechanical
housing (2).
3.
4.
5.
6.
Remove gear rotor set (4) from pump (3).
Remove woodruff key (5) from motor shaft (6), if being replaced.
Inspect gear rotor set (4) for free movement, pitting, and corrosion. Clean/replace gear rotor set as
required. Do not use file or abrasive cleaners.
Clean pump motor housing (7).
7.
Inspect preformed packing (8) and replace as required.
INSTALLATION
1.
Install woodruff key (5) in motor shaft (6), if removed.
2.
Lightly oil gear rotor set and install gear rotor set (4) on motor shaft (6) using square slot on rotor.
NOTE
Aline scribe marks on mechanical housing and inside wall of pump motor
housing.
3.
Install mechanical housing (2) and secure with four screws (1).
4-148
Change 4


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