Control Module. (cont)

TM 5-4120-352-14

c. Cleaning, Inspection and Repair.

(3) Disconnect leads. Remove three self-lock-

(1) Clean metal parts with cleaning solvent

ing screws (6) and remove rear mounting frame (23)

(Fed. Spec. P-D-680). Wipe off electrical parts with

with connector and temperature control switch at-

a clean cloth.

tached.

(2) Refer to paragraph 4-45 and test switches

(4) Remove connector mounting screw (7), nut

and circuit breaker. Replace defective parts.

(8), loop clamp (10), washer (21) and spacer post (9)

(3) Inspect connector for damaged casing and

to release temperature control capillary tube.

bent or broken contacts. Check wiring for damaged

(5) Remove four screws (11), nuts (12), and

insulation and broken wires. Check terminals for

washers (13) and remove temperature control

damage. Repair damaged wiring. Replace connector

switch (14).

if defective.

(6) Remove screw (15), nut (16), lock washer

(4) Check cover, frame and plates for bent

(17) and two flat washers (18) and disconnect

condition. Straighten bent parts or replace parts as

ground lead.

required.

(7) Remove seven remaining screws (19), nuts

d. Assembly. Refer to figure 6-5 and assemble

(20) and washers (21) and remove connector assem-

control module as follows:

bly (22) from mounting frame (23). Do not remove

(1) Place designation plate (38) on mouning

leads from connector unless they require replace-

plate (36) and install circuit breaker (35) with

ment.

screws (33) and washers (34). Install grommets

(8) Remove three screws (24), washers (25)

(37).

and posts (26).

(2) Install rotary switch (32) and secure with

(9) Remove setscrew (27), knob (28), and jack-

switch nut and washer. Install knob (31).

screw extension (29).

(3) Install toggle switch (30) and secure with

(10) Remove toggle switch (30) by removing

switch nut and washer.

locknut and washer.

(4) Insert jackscrew extension (29) through

(11) Remove mode selector knob (31), switch

opening in mounting plate and install knob (28) and

nut and washer and remove mode selector rotary

setscrew (27).

switch (32).

(5) Install connector assembly (22) on rear

(12) Disassemble handle of three phase circuit

mounting frame (23) and secure with seven screws

breaker (35), Remove six screws (33) and washers

(19), nuts (20), and washers (21). Omit screw in

(34) securing three phase circuit breaker (35) to

lower corner.

mounting plate (36). Remove circuit breaker.

(6) Install screw (15), washers (18) lock

(13) Remove grommets (37) and designation

washer (17) and nut (16) with ground terminal be-

plate (38) from mounting plate.

tween the two flat washers (18).

(7) Install temperature control switch (14) on

frame and secure switch with four screws (11), nuts

(12), and flat washers (13). Install loop clamp (10)

Dry cleaning solvent, P-D-680, used to

on capillary tube and install screw (7), spacer (9),

clean parts, is potentially dangerous

washer (21), clamp and nut (8).

to personnel and property. Avoid re-

(8) Assemble three posts (26) to front plates

peated and prolonged skin contact.

with screws (24) and washers (25). Position posts

Do not use near open flame or exces-

against frame and install screws (6). Install roll pin

sive heat. Flash point of solvent is 100

(5).

- 138F (38 - 59C).

(9) Pass capillary tube through opening in

bottom of cover (2) and install cover on module. In-

stall grommet (3) and four screws (1).

6-11