Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND ASSEMBLIES

TM 5-4130-234-13&P

(4) Route heater wires and connect ends to

(5) Wrap insulation (131B) around tank heater and secure

terminals 4 and 6 of terminal strip (167). See figure

insulation with tape (131A).

5-1.

Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS

AND ASSEMBLIES

(2) Install panel (150). Hold elbow (34) and tighten nut

5-24. Thermocouple Gage Control (14, fig. 5-2) &.

(32) to connect drain line.

Remove thermocouple gage control (14) as follows:

(3) Tighten nut (27) to connect intake line.

(1) Remove M1 gage wires from terminals 4

(4) Install wiring on top of vacuum pump motor (Refer to

and 5 of terminal strip (167). (See wiring diagram,

wiring installation of B1 motor in fig. 5-1).

fig. 5-1).

(5) Install valves (108, fig. 5-2) on panel (150) with

(2) Unplug thermistor half (part of 14, fig. 52)

attaching parts (104 thru 107).

located near bushing (21). While holding bushing

5-26. Tank Assembly (133, fig. 5-2)

(21), unthread other half of thermistor from bushing

a. Remove tank assembly (133) as follows:

(21).

(1) Remove attaching parts (141 thru 144A) and panel

(3) Cut wire ties and remove thermistor and

(146) with attached valves (89) and beaker (84).

wiring leading to gage.

(2) Remove tape (131A) and insulation (131B), and

(4) Remove shock isolator (16), bracket (15)

unlace tank heater (132) and remove from tank assembly

and thermocouple gage control (14) from panel (17).

(133).

b. Install new thermocouple gage control (14) as

(3) Loosen nut on tee (95) from connector (110).

follows:

(4) Loosen nut on tee (95) from tee (94).

(1) Install gage with bracket (15) and chock

(5) Loosen nut (92) from elbow (121).

isolators (16) on panel (17).

(6) Loosen nut on elbow (113) to disconnect nut and

(2) Route wires from gage to terminal 4 and 5 of

tubing from elbow (113).

terminal strip (167). (M1 wiring to TB1, fig. 5-1).

(7) Remove attaching parts (128 thru 130) (140 thru

(3) Route wiring with thermistor (part of 14, fig.

144A) and tank assembly (133) with relief valve (109) and

5-2) to bushing (21). Unplug thermistor, tape

switch (96).

lubricate male thread of thermistor half and thread

(8) Remove relief valve (109) and switch (96) with tees

into bushing (21) while holding bushing. Plug

(95) from tank assembly (133).

thermistor halves together.

b. Install tank assembly (133) as follows:

5-25. Vacuum Pump (57, fig. 5-2)

(1) Tape lubricate threads of tees (95) and thread tees

a. Remove vacuum pump as follows:

(95) with relief valve (109) and switch (96) into tank

(1) Position a container of one-half gallon

assembly (133).

capacity under drain valve (30) and drain vacuum

(2) Install tank assembly in enclosure and secure with

pump oil.

parts (128 thru 130) (140 thru 144).

(2) Remove wiring from top of vacuum pump

(3) Tighten nut on elbow (113) to secure elbow to tubing.

motor. (Refer to B1 motor in fig. 5-1).

(4) Tighten nut (92) on elbow (121) to secure tubing.

(3) Loosen nut (27, fig. 5-2) to disconnect intake

(5) Tighten nut on tee (95) to secure tee (95) to tee (94).

line.

(6) Tighten nut on tee (95) to secure tee (95) to

(4) Hold elbow (34) and loosen nut (32) to dis

connector (110).

connect drain line.

(7) Wrap and lace tank heater (132) around tank

(5) Remove attaching parts (104 thru 107) and

assembly.

separate valves (108) from panel (150). Remove

(8) Wrap insulation (131B) around tank heater and

attaching parts and move panel (150) to gain access

secure insulation with tape {131A).

to vacuum pump.

(9) Install panel (146) and attached valves

(6) Remove attaching parts (45 thru 56) and

vacuum pump (57).

b. Install vacuum pump as follows:

(1) Position vacuum pump in service unit and

install

attaching

parts

(45

thru

56).

5-11