TM
55-1730-229-12
AG
320AO-OMM-000
TO
35C2-3-473-1
TM
1730-12/1
Release the tow bar and lower it to the
Tag and remove cable (G12B2. figure
(c)
(7)
4-92).
operating position.
Press down and hold the dead-man
Tag and remove electrical connector (24)
(d)
(8)
switch.
from top of controller.
Rotate the speed/directional handgrip
Remove nuts (16). lockwashers (17). screws
(e)
(9)
assembly in the forward direction only enough to engage
(18). Remove motor controller (19) from upper tray (20).
the forward direction only enough to engage the forward
b.
Install. (See figure 4-91.)
relay (K1) on the upper tray. Do not rotate the speed/direc-
tional handgrip assembly after engaging the relay. Hold the
Place motor controller (19) in proper posi-
(1)
speed/directional handgrip assembly at this position until
tion on upper tray (20). Insert screws (18) through
the volts adjustment is completed.
mounting holes in motor controller and upper tray. Install
lockwashers (17) and nuts (16) cm screws. Tighten nuts
securely.
Install electrical connector (24) to top of
(2)
controller. (See figure 4-92 for proper connections.)
Performs all trim pot adjustments in the order
shown. Adjustments are made to the trim pots
Install cable (G12B2, figure 4-92.)
(3)
located on the top of the motor controller.
Install slide in wires (1 and 8) to 28V
(4)
Volts adjust: With the speed/direction
(f)
keyswitch terminal.
handgrip assembly set per paragraph (e), adjust the volts
adjust trim pot in the direction of the arrow until you hear
Connect wires to terminals S-l. S-2, POS
(5)
the propulsion motor start to whine. The motor should
and NEG.
whine and attempt to crawl the AGPU forward. Do not
adjust further.
Install flat washers (27. figure 4-91). lock-
(6)
washers (26). and nuts (25) to terminals S-1. S-2, POS and
NOTE
NEG.
The speed/direction handgrip assembly must be
Adjust motor controller as follows:
(7)
released to perform the remaining adjustments.
Insure the AGPU switches and trac-
(a)
Current Limiter: Turn the current
(g)
tion motor are set to the alternate (battery) propulsion mode
limiter trim pot the full direction of the arrow.
(see TM 55-1730-229-12, paragraph 2-1O.b).
Accelerator: Turn the accelerator trim
(h)
NOTE
pot in the full direction of the arrow and then approxi-
mately 1/2 turn in the reverse direction
Removal of the roof will allow easy access to the
motor controller far the adjustments.
Max Brake: Turn the max brake trim
(i)
pot in the full direction of the arrow and then 1/2 turn in the
NOTE
reverse direction.
Two people are required for the motor controller
adjustments. One person to operate the speed/
direction handgrip assembly and one to make
adjustments at the motor controller.
Set the drive switch to ON and check
(b)
that the drive lamp is illuminated.
