TN 55-1730-229-34
AG 320A0-MME-000
TO 35C2-3-473-2
in 1730-34/1
Table 4-2.
AGPU DOES NOT DRIVE WHEN SPEED/DIRECTION CONTROL ASSEMBLY HANDGRIPS ROTATED
34.
IN EITHER DIRECTION (CONDITIONS PROPER FOR OPERATION) (continued)
f.
If the traction motor does not react to the adjustment replace the motor controller
assembly (refer to TM 55-1730-229-12. paragraph 4-117).
Set power switches off and disconnect battery. Inspect motor cables for possible shorts.
step 5.
a. Raplace or repair any shorted cables.
b. If no shorted cables are found, do step 6.
Attempt to manually rotate rear wheels.
Step 6.
If rear wheels can be easily rotated, replace motor (paragraph 10-10).
&
b. If rear wheels cannot be easily rotated, check brakes and chain drive systems.
Check for +24 vdc at B+ terminal on motor speed controller on upper electrical tray (figure FO-8,
step 7.
TM 55-1730-229-12).
If voltage is present do step 8.
a.
b. If voltage is not present, disconnect battery and check cable G11A2.
With speed/direction control assembly handgrip rotated and deadman switch pressed check for
step 8.
+24 vdc at 28VDC IN terminal on motor speed controller.
If voltage is present, go to step 12. If not, continue with step 9.
With speed/direction control assembly handgrip rotated and deadman switch pressed check for
step 9.
+24 vdc at terminal 9 on speed/direction control assembly.
2-20.1/(2-20.2 Blank)
Change 4
