TM 11-5820-890-30-4
4-38. REPLACEMENT OF TERMINAL BLOCK TB2. Continued
ITEM
ACTION
REMARKS
INSTALLATION
e. Terminal block TB2 (32)
Using cross tip screwdriver, install four
These were removed in
f. Wires
g.
Rear access
cover (12)
4-39. REPLACEMENT
Tools:
retained screws (35), Iockwashers (23),
step d.
and flat washers (24) securing replace-
ment terminal block TB2 (32) to power
control chassis (17).
Using flat tip screwdriver, install four re-
These were removed in
tained screws securing shorting bar (39)
step c.
and terminal lugs (37) with tagged wires
to terminal block TB2 (32). Remove wire
tags.
Hold in place and tighten six captive
This was removed in
screws (13) securing rear access cover
step b.
(12) to power control chassis (10).
See figure 4-5.
Using torque screwdriver, torque screws
to 8 to 10 in-lb.
OF POWER CONTROL CHASSIS O-RING GASKET.
Cross tip screwdriver
Flat tip screwdriver
Torque screwdriver
Soldering kit
Expendable Supplies:
Sealing compound, grade H
Adhesive, cyanoacrylate
Solder
Silicone compound
Cotton swabs
Alcohol
References:
Figures 4-5, 4-10, 4-11, 4-12, and 4-13 for component locations,
Paragraph 4-40 for removal and installation of bottom cover.
ITEM
ACTION
REMARKS
REMOVAL
a.
b.
c.
d.
Mounting adapter
Set on work surface with left side
Six captive screws (13)
Using flat tip screwdriver, fully loosen six
See figure 4-5.
and rear access cover
captive screws (13) securing rear access
(12)
cover (12) to power control chassis (11).
Remove and retain rear access cover.
Terminal lugs (30)
Using cross tip screwdriver, remove and
See figure 4-10.
retain screw (29) and Iockwasher (23)
securing terminal lugs (30) to electrical
post (27).
Two screws (1) and
Using cross tip screwdriver, remove and
See figure 4-11.
flat washers (2)
retain two screws (1) and flat washers (2)
securing bottom shelf (3) to power control
chassis (4).
4-137
