Terminal Tightening - JLG 1930ES Service Maintenance Manual

4. Carefully release the brush springs (4) allowing the
brushes to contact the commutator. Make sure
brush shunts do not interfere with spring movement.
5. Assemble the commutator end head to the frame
and field assembly (1) and tighten the screws to
120-140 in-lb. [13.6-15.8 N-m]. Make sure to align
the field connection with the notch in the commuta-
tor end head. Seal wires where they exit from com-
mutator end head with a small amount of RTV
Silicone Sealant.
6. Align wires from brake assembly (11) into notch in
friction disc (10). Install both items onto shaft of
motor aligning wires with groove in commutator end
head. Secure brake assembly to commutator end
head using 3 bolts and apply small bead of RTV Sili-
cone sealant around wires between friction disc and
commutator end head and in notch in friction disc.
MOTOR CABLE
SECURING NUT
CABLE LUG
TERMINAL
SECURE NUT WHILE
APPLYING TORQUE
Figure 3-28. Terminal Tightening
3121166
STUD TERMINAL
SECURING NUT
FLAT WASHER
INSULATING WASHER
MOTOR HOUSING
– JLG Lift –
SECTION 3 - CHASSIS & SCISSOR ARMS
7. Install wire harness (8) to motor by connecting the
field and brake connectors and securing the arma-
ture terminals to the terminal studs. Refer to Figure 2
for proper connections. Motor terminals must be
assembled as shown in the figure above. Always
secure the bottom nut with a wrench as you
tighten the top nut. Torque top nut to 90-110 in-lb.
[10.2-12.4 N-m].
8. Remove manual release screws from brake assem-
bly. Apply new o-ring (13) and affix cover (15) to
motor using the 2 manual release screws. A small
dab of RTV Silicone sealant may be used to secure
the o-ring into the o-ring groove in the cover to aid in
assembly.
9. Assemble strain relief bushing (14) around jacket of
wire harness and slide into slot in cover.
10. Align cover plate (12) with groove in frame and field
and affix using 2 screws.
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