JLG 9MP Service Manual - Manual (Page 40)

SECTION 4 - CONTROL COMPONENTS
4-10 – JLG Lift – 3121163
Brush Carrier - Removal/Installation
Once brush carrier assembly has been removed, inspect
the rotor commutator for excessive wear before installing
a new brush set.
The rotor commutator surface when new, is approximately
1/8 in. (3mm) in thickness.
Brush Housing Final Assembly Tips
It is easier to install the brush carrier assembly by sliding
the rotor assembly completely out of the other end of the
motor housing, then attach the brush carrier first. After the
brush carrier is installed look into the motor housing from
the opposite end to check that the positive (+) post wires
and static winding wires are positioned not to block the
holes for the motor mounting bolts, and are properly posi-
tioned around the motor housing.
After final assembly of the brush housing check that all
brush terminal screws are tight and the brush springs are
positioned properly before mounting the motor to the
pump/motor end head.
Brush Carrier - Removal/Installation
1. Brush Carrier Assembly 2. Brush Spring 3. Brush Holder 4. Brushes 5. Carrier Screws
Note: Length of wires to brush assemblies shown exaggerated for illustrative purposes.
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