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TM 11-5820-890-30-5
15-25. REPLACEMENT OF VR1 ZENER DIODE. Continued
ITEM
ACTION
REMARKS
INSTALLATION
f. VR1
g. Hex
and
h. VR1
zener diode (3)
Obtain replacement VR1 zener diode
and position it on chassis.
nut, flat washer,
Use 7/16 inch open-end wrench. Install
Iockwasher (4)
retained hex nut, flat washer, and lock-
washer securing VR1 zener diode (3)
to chassis.
zener diode wire
Use long nose pliers and soldering equip-
i.
Mounting plate
assembly (2)
ment. Attach and solder wire to terminal
of VR1 zener diode.
Install retained mounting plate assembly
on battery tray subassembly (1).
These were removed in
step d.
Before and after soldering,
clean wire and terminal with
alcohol and cotton swabs.
Refer to paragraph 15-20
for installation of mounting
plate assembly.
15-26. REPLACEMENT OF J1 CONNECTOR.
Tools:
Cross tip screwdriver
Soldering kit
Socket wrench
Torque wrench
Long nose pliers
Soldering aid
7/8 inch socket
Heat sink
Expendable Supplies:
Silicone compound
Solder
Alcohol
Cotton swabs
References:
Paragraph 15-20 for removal and installation of mounting plate assembly.
ITEM
ACTION
REMARKS
REMOVAL
a. Mounting plate
Remove and retain.
Refer to paragraph 15-20
assembly (2)
for removal of mounting
plate assembly.
b. Battery tray
subassembly (1)
c. Hex nut and IET
Iockwasher (6)
d. J1 connector (5)
Set upside down on work surface with
left side toward you.
Use socket wrench and 7/8 inch socket.
Remove and inspect hex nut and IET
Iockwasher securing J1 connector (5) to
chassis. If damaged, obtain replacement.
See figures 15-5 and 15-6.
Maneuver connector and rubber contact
cover so wires and contacts are accessible,
and tag location of each wire on connector.
15-28
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