MOTOR (MODEL EJ4-4001 AND EJ8-4001A)
Motor Assembly
18
758
Figure 18-16
Brush Rigging
759
Figure 18-17
Retracted Brushes
760
Figure 18-18
Armature Installation
761
Figure 18-19
Brush Setting
3.
With the brushes retracted, use an arbor press to press the armature shaft into the end cap bearing
(Figure
18-18, Page 18-13)
.
See following CAUTION.
CAUTION
• Make sure the brushes are held back. Do not allow the brushes to support the weight of the
commutator. The brushes can be easily damaged by this weight.
4.
Gently press each brush with a small screwdriver until the spring rests on the end of each brush as shown
(Figure 18-19, Page 18-13)
.
5.
Align the match marks on the end cap and the motor frame (1) and secure with two bolts (16)
(Figure 18-15,
Page 18-11)
. Tighten bolts to 130 in-lb (14.7 N·m).
6.
Install the speed sensor magnet (24) with screw (23). Tighten to 65 in-lb (7.3 N·m).
7.
Install the speed sensor (10) with screws (25). Tighten to 25 in-lb (2.8 N·m).
8.
Make sure the armature turns freely. If it does not turn freely, disassemble the motor to find the problem.
2009 Electric Precedent Maintenance and Service Manual
Page 18-13
