SECONDARY AIR SYSTEM LOW PRESSURE SWITCH

TM 9-2320-270-20-1

SECONDARY AIR SYSTEM LOW PRESSURE SWITCH

This task covers:

c. Installation (page 4-403)

a. Removal (page 4-402)

b. Cleaning/Inspection (page 4-402)

INITIAL SETUP

Personnel Required

Tools

One

Brush, wire

Screwdriver, flat-tip, 3/6-inch

Equipment Condition

Wrench, open-end, 1 1/16-inch

Air pressure drained (TM 9-2320-270-10).

Materials/Parts

instrument panel open (page 4-244).

Tape, teflon (item 22, appendix C)

ACTION

REMARKS

ITEM

LOCATION

REMOVAL

WARNING

Make sure all pressure is drained from air system before taking off switch. Parts under

pressure can, when removed, fly off with great force causing injury to personnel.

UnpLug.

Wire 120 (2)

1. Secondary system low

pressure switch (1)

Using 1 1/16-inch wrench, unscrew and

Low pressure

2. Tee (3)

take out.

switch (1)

CLEANING/lNSPECTION

a. Using wire brush, clean all old sealer

Low pressure

from threads.

switch (1)

b. Inspect for stripped or damaged

threads.

If threads are stripped or damaged,

replace.

Tee (3)

inspect for stripped or damaged threads.

If threads are stripped or damagad,

replace.

4-402