Cushman 632904 Service Manual page 111

Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
When installing armature into the bearing/end cover
assembly, support the bearing's inner race to avoid
damage.
Press the armature into the new bearing using moder-
ate heat to aid installation.
Release brushes against commutator. Ensure the
springs are seated against the rear of the brushes and
are able to move freely.
Field Coil Replacement
Tool List
Wrench, 1/2"................................................................ 1
Ratchet, 3/8" drive ....................................................... 1
Socket, 1/2", 3/8" drive ................................................ 1
To replace field coil (8), remove field coil terminal hard-
ware (9) at S1 and S2 (Ref. Fig. 3).
Remove bolts that secure field coil retainers (11) to
motor housing (4). Remove the field coils.
Replacement field coils are installed in reverse order of
disassembly.
Brush Replacement
Tool List
Wrench, 1/2"................................................................ 1
Ratchet ........................................................................ 1
Socket, 5/16" ............................................................... 1
Brushes should be measured as shown and replaced
when the minimum dimension of .62" (16 mm) is
reached (Ref. Fig. 4).
1.30"
33 mm)
New Brush
Fig. 4 Brush Wear
Qty.
Qty.
.62" Min
(16 mm)
Worn Brush
(Replace)
Repair and Service Manual
Remove brush terminal hardware (12) at A1 and A2
(Ref. Fig. 3).
Remove screws (13) securing brush plate (14).
Remove brushes, rigging and brush plate.
Pull back each brush until each of the springs (15) rest
against the side of its brush (Ref. Fig. 5). Remove
brushes and replace with new brush replacement kit.
Locate springs against the side of each brush.
Brush
Spring
Brush
Spring Position
for Installed Brushes
Fig. 5 Securing Brushes
Install terminals and brush plate using reverse order of
removal. Install armature (commutator end) through
brush plate and press into new bearing using moderate
heat to aid installation. Position brushes against com-
mutator. Ensure the springs are seated against the rear
of the brushes and are able to move freely.
Motor Assembly
Tool List
Socket, 3/8" ................................................................. 1
Torque wrench, in. lbs. ................................................ 1
Align the commutator end cover with the holes in the
motor housing and assemble (Ref. Fig. 3). Secure the
commutator end cover to the motor housing with bolts
(2) and tighten to 90 in. lbs. (10 Nm) torque. Attach ring
magnet to armature shaft with screw. Install inner snap
ring in cover and insert speed sensor. Secure with sec-
ond snap ring (Ref. Fig. 3).
B
MOTOR
B
Brush
Spring Position for
Removing/Replacing
Brushes
Qty.
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