TM 11-5820-890-30-4
14-22. REPLACEMENT OF R1 RESISTOR. Continued
ITEM
ACTION
REMARKS
INSTALLATION Continued
h. R1 resistor (1) wires
i.
Tiedown strap
j.
Mounting plate
14-23.
Tools:
REPLACEMENT
Use long nose pliers and soldering kit.
Attach and solder each tagged wire to
correct lead of resistor, and remove
wire tags.
Replace.
Install retained mounting plate on battery
tray subassembly.
OF VR1 ZENER DIODE.
Cross tip screwdriver
3/8-inch open-end wrench
Long nose pliers
Expendable Supplies:
Solder
Alcohol
References:
Before and after soldering,
clean wires and leads with
alcohol and cotton swabs.
Refer to paragraph 14-19
for installation of mounting
plate.
Soldering kit
Cotton swabs
Paragraph 14-19 for removal and installation of mounting plate assembly.
ITEM
ACTION
REMARKS
REMOVAL
a. Mounting plate
Remove and retain.
Refer to paragraph 14-19
for removal of mounting
plate.
b. VR1 zener diode (3)
wire
c. Hex nut, flat washer,
and Iockwasher (4)
d. VW zener diode (3)
INSTALLATION
e. VR1 zener diode (3)
f. Hex nut, flat washer,
and Iockwasher (4)
Use long nose pliers and soldering kit.
Desolder wire from terminal on zener
diode. See figures 14-5 and 14-6.
Use 3/8-inch open-end wrench. Remove
and inspect hex nut, flat washer, and
Iockwasher securing VR1 zener diode to
chassis. If damaged, obtain replacement.
Remove and discard.
Obtain replacement VR1 zener diode
and position it on chassis.
Use 3/8-inch open-end wrench. Install
These were removed in
retained hex nut, flat washer, and lock-
step c.
washer securing VR1 zener diode (3)
to chassis.
14-25
