MOTOR
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
43
Repair and Service Manual
634756
MOTOR
GENERAL
Do not hold vehicle on a hill using the accelerator,
which is known as a “stalled” condition. Leaving
motor in a stalled condition for more than 3-4 sec-
onds can cause permanent damage to the motor.
Disassembly of the motor is not recommended. Neither
the motor housing nor armature are available as service
items, therefore in the unlikely event of a failure in either
of these components, the entire motor must be replaced.
Motor Replacement
To prevent shorting motor wires and causing
an explosion, disconnect the negative (-) bat-
tery cable with an insulated wrench before
attempting to remove wires from the motor
(see procedures in SAFETY section of this
manual).
Tool List
Qty.
Wrench, 10mm ............................................................1
Insulated Wrench, 9/16" ..............................................1
Chalk or Paint Pen.......................................................1
Socket, 10 mm.............................................................1
Ratchet ........................................................................1
Torque Wrench, in. lbs. ................................................1
Fig. 1 Disconnect Battery Cable
Use an insulated wrench to disconnect the negative (-)
battery cable from the battery (Ref. Fig. 1).
Mark both the axle and motor housings to assist with
realignment during reassembly of motor to rear axle (Ref.
Fig. 2).
Disconnect the motor wires from the controller terminals
U, V, and W.
Fig. 2 Mark Axle and Motor
Be careful not to damage the splines when remov-
ing and reassembling the motor to the rear axle
housing.
Remove the connector at the speed sensor (7) (Ref. Fig.
4).
Remove the six bolts (9) that secure the motor (1) to the
axle housing and carefully slide the motor straight out
from the axle splines.
Remove the bolts (5), washers (4), motor cover (3) and
motor cover gasket (2) from the motor (1). Retain the
motor cover (3) and motor cover gasket (2) for reuse.
Clean the motor coupler with compressed air. Use a
scraper to remove any rust deposits if present.
Install the motor in reverse order of removal.
Apply a small quantity of molybdenum grease or gener-
ous amount of silver grade antisieze grease to the
female portion of the spline.
Carefully mate the motor spline with the input shaft of the
axle. Align the orientation marks and install the mounting
hardware. Finger tighten bolts (9) in a ‘cross sequence’
pattern (Ref. Fig. 4). Continue tightening in 25 in lbs.
increments following the same ‘cross sequence’ pattern
to torque specified below.
Negative
Cable (-)
Front of Vehicle