Section IV. REASSEMBLY AND ALIGNMENT - TM-55-4920-325-14-P0070

TM 55-4920-325-14&P

Section IV. REASSEMBLY AND ALIGNMENT

i. Mate connector P103 (7) and connector

4-21. SC Op e .

J103 of megohmmeter indicator (6); then slide

This section contains instructions for installing

megohmmeter indicator (6) into panel assembly

components and assemblies that have been reas-

(33) and secure in clamp (51) using screw (5) and

sembled in accordance with paragraphs 4-15

locking compound (item 3, table 1-4).

through 4-19. In addition, before the test set is in-

j. Mount O-ring (4) on capacitance indicator

stalled in the transit case assembly, instructions

(2).

are provided for adjusting STRAY BAL ADJ po-

tentiometer R120.

k. Mate connector P101 (3) with connector

J 101 of capacitance indicator (2); then slide ca-

4-22. Reassembly.

pacitance indicator (2) into panel assembly (33)

To reassemble the test set, refer to figure 4-10

and secure in clamp (51) using screw (1).

and proceed as follows:

l. Perform steps a through e of checkout in-

NOTE

structions (see paragraph 4-4). If necessary, ad-

just STRAY BAL ADJ potentiometer R120 in ac-

As reassembly proceeds, reconnect

cordance with paragraph 4-23, before proceeding

wires and cables in accordance with

to step m below.

tags on wires. Check that wires and ca-

bles are connected to proper terminal

m. Mount instruction placard (49) on transit

or connector and remove tags.

case assembly (52).

a. Attach two clamps (51) to panel assembly

n. Attach identification plate (48) to transit

(33) using two screws (50) and locking compound

case assembly (52) using four screws (45), four

(item 3, table 1-4).

Iockwashers (46), four acorn cap nuts (47) and

locking compound (item 3, table 1-4).

b. Attach capacitance assembly (32) to panel

assembly (33) using three hex nuts (29), three

o. Attach two cable supports (44) to lid of

shoulder washers (30) and" three fiber washers

transit case assembly (52) using four screws (41),

(31).

four Iockwashers (42), four flat washers (43) and

locking compound (item 3, table 1-4).

c. Attach nameplate (20) to panel assembly

(33) using two screws (18), two Iockwashers (19)

p. Install three power cable assemblies in lid

and locking compound (item 3, table 1-4).

of transit case assembly (52).

d. Mount two caps (13) and cap (14) on

q. Attach four vibration isolators (40) to tran-

associated connector. Attach two caps and chains

sit case assembly (52) using 16 machine screws

(13) and cap and chain (14) to panel assembly

(37), 16 Iockwashers (38), 16 hex nuts (39) and

(33) using two screws (15), two nylon washers

locking compound (item 3, table 1-4).

(16), two shoulder washers (17) and locking com-

Attach two support rods (36) to four vibra-

pound (item 3, table 1-4).

tion isolators (40) using four screws (34), four

e. Attach two skirts (12) to two variable ca-

Iockwashers (35) and locking compound (item 3,

pacitor knobs (10) using six screws (11) and lock-

table 1-4).

ing compound (item 3, table 1-4).

s. Attach two stiffener rods (25), two stiff-

f. Mount two variable capacitor knobs (10)

ener rods (26), panel gasket (28) and instrument

on two capacitor assembly shafts and tighten

case (27) to panel assembly (33) using 20 screws

associated setscrews.

(23), 20 nylon washers (24) and locking com-

pound (item 3, table 1-4).

g. Mount three switch knobs (9) on three ro-

tary switch shafts and tighten associated set-

t. Attach panel assembly (33) to transit case

screws.

assembly (52) using eight machine screws (21),

eight nylon washers (22) and locking compound

h. Mount O-ring (8) on megohmmeter indi-

(item 3, table 1-4).

cator (6).

4-26