JLG 15/20MSP Service Manual - Manual (Page 42)

SECTION 3 - BASE COMPONENTS
3-8 – JLG Lift – 3121231
18. Install the brush housing onto the end of the motor
frame and armature. You may need to use a soft-
tipped mallet to tap the brush housing onto the bear-
ing of the armature. Once the brush housing is par-
tially on the armature, the brush retaining pins must
be removed.
NOTE: Do not pinch any wires between the frame and the
brush housing.
19. Line up the timing marks between the brush housing
and the motor frame.
20. Install the motor bolts.
21. Install the motor flange so that the tapped holes line
up with the motor bolts.
WHEN TIGHTENING THE MOTOR HOUSING TO MOUNTING
FLANGE, CHECK THAT THE MOUNTING BOLTS ARE NOT PRO-
TRUDING TO FAR THROUGH THE MOTOR MOUNTING FLANGE
AND COME INTO CONTACT WITH THE BRAKE FRICTION PLATE
ON THE OTHER SIDE OF THE FLANGE. THIS COULD CAUSE THE
BRAKE FRICTION PLATE TO BECOME WARPED AND THE BRAKE
TO NOT WORK PROPERLY. IF NECESSARY, ADD ANOTHER
WASHER UNDER THE HEAD OF THE MOTOR HOUSING MOUNT-
ING BOLTS.
22. Tighten the motor bolts to 65 in-lbs.
23. Look at the timing marks to make sure that they are
still aligned. If not, loosen bolts, line up the marks,
and then retighten the bolts.
24. Remove the protective tape from the motor shaft.
BEFORE MOUNTING THE DRIVE MOTOR/BRAKE ASSEMBLY TO
THE GEAR BOX SPINDLE HUB BE CERTAIN THE BRAKE CAVITY
INSIDE THE SPINDLE HUB IS CLEAN, DRY, AND FREE OF ANY
OIL RESIDUE.