MWO-9-2300-378-34-2
TANK, COMBAT FULL-TRACKED
MODIFICATION WORK ORDER
JUNE 1984
MWO-9-2300-378-34-2 - Page 60 of 92
MWO 9-2300-378-34-2
Section V. Hull Wiring Instructions for M48A5 Tanks
(1) Assemble smoke generator switch bracket (refer to section II).
(2) Rework the fire extinguisher clamp assembly 11615403 located on the right side
of the driver’s compartment (refer to figures 44 and 46).
(3) Install the previously assembled switch bracket assembly to the reworked fire
extinguisher clamp 12290449 using four screws MS907 26-9, four lockwashers MS35333-40, four
flat washers MS27183-10, and four nuts MS51968-2. Temporarily leave the lower rear screw
loose in order to secure the harness later (refer to figures 44 and 45).
(4) Connect the kit wiring harness switch receptacle to the switch connector and
secure the harness with one clamp MS2 1333-100 and screw left loose in step 3 (refer to figure
45).
(5) Remove and retain one screw MS90725-3, lockwasher MS35 338-44, and flat
washer MS27I83-10 from each of the wiring harness securing straps 10905840 (refer to figure
45).
(6) Route the kit harness 12270526 along the existing harness to the air cleaner
blower motor relay.
Disconnect the relay receptacle and connect the kit harness spliced jumper
lead into the relay circuit (refer to figures 44 and 45).
(7) Secure the receptacle and excess cable with two straps MS3367-6-9 (refer to
figure 44).
(8) Route the single lead on the kit wiring harness along the existing harness up to the
starter harness receptacle (refer to figures 44 and 45).
(9) Remove the electrical disconnect access plate and disconnect the starter harness
receptacle from the bulkhead.
Remove the existing filler rod and contact from pin location “A”
and insert lead assembly 12290435 contact into this location.
Reconnect the receptacle
connector to the bulkhead and install the access plate (refer to figures 44, view D).
(10) Secure the total wiring harness with the previously removed straps 10905840.
(Refer to figure 45).
(11) Remove and discard the existing identification band of the starter cable assembly
and apply identification band M43436/1-3 with the new part number 12290448. (refer to
figures 44 and 47).
NOTE
Check harness routing and connections to insure a neat
and secure installation.
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