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 162 of 389

TM 3-1040-279-12&P

4-24 PRESSURE SWITCH BRACKET ASSEMBLY.

This task covers replacement of:

a. Cable Assemblies W13, W15,

c. Oil Pressure Switch S103

(P. 4-100).

or W16

(P. 4-98).

d. Fuel Pressure Switch S108

(P. 4-100).

b. Air Pressure Switch S106

(P. 4-100).

INITIAL SETUP

Materials

Sealing Compound (Item 11A, App E)

Tools

General Safety Instructions

General Mechanic’s Automotive Tool Kit

Before performing any maintenance procedures

SC 5180-90-CL-N26

be sure circuit breaker CB1 is in OFF position.

a. Cable Assemblies W13, W15, or W16.

NOTE

Procedures for removal and installation of

three cable assemblies are the same.

REMOVAL

1.

2.

3.

4.

5.

6.

7.

Remove equipment container from smoke generator (P. 4-68).

Remove eight screws (1) and washers (2) and remove right equipment container panel (3).

Remove eight screws (4) and washers (5) and remove left equipment container panel (6).

Disconnect air pressure hose (7) from pressure switch bracket assembly (8).

Remove four screws (9), washers (10), and flat washers (11) and remove pressure switch bracket

assembly (8).

Disconnect cable assembly (12) from pressure switch (13).

Disconnect wire leads from terminal board (14) and remove cable assembly from equipment

container (15).

INSTALLATION

NOTE

TB 21 is wired right to left.

1. Connect cable assembly leads to terminal board TB12 (14). Coat terminal board screw threads

with sealing compound before securing leads.

2. Connect cable assembly (12) to pressure switch (13).

3. Position pressure switch bracket assembly (8) and secure with four screws (9), lock washers (10)

and flat washers (11).

4-98

Change 2