JLG E300 Service Manual - Manual (Page 72)

SECTION 3 - CHASSIS & TURNTABLE
3-38 – JLG Lift – 3121253
21. If the bearings, bushing or thrust washers must be
replaced use a suitable size bearing puller to
remove bearing/bushings (19) and (13) from hous-
ing (18) without damaging the housing. Remove
thrust washers (14) and thrust bearing (15) if they
were previously retained in the housing by bearing
(13).
Assembly
Replace all seals and seal rings with new ones each time
you reassemble the motor unit. Lubricate all seals and
seal rings with SAE 10W40 oil or clean grease before
assembly.
NOTE: Unless otherwise indicated, do not oil or grease
parts before assembly.
Wash all parts in clean petroleum-based solvents before
assembly. Blow them dry with compressed air. Remove
any paint chips from mating surfaces of the end cover,
commutator set, manifold rotor set, wear plate and hous-
ing and from port and sealing areas.
SINCE THEY ARE FLAMMABLE, BE EXTREMELY CAREFUL WHEN
USING ANY SOLVENT. EVEN A SMALL EXPLOSION OR FIRE
COULD CAUSE INJURY OR DEATH.
WEAR EYE PROTECTION AND BE SURE TO COMPLY WITH OSHA
OR OTHER MAXIMUM AIR PRESSURE REQUIREMENTS.
1. If the housing (18) bearing components were
removed for replacement, thoroughly coat and pack
a new outer bearing/bushing (19) with clean corro-
sion resistant grease recommended in the material
section. Press the new bearing/bushing into the
counterbore at the mounting flange end of the hous-
ing, using the appropriate sized bearing mandrel as
described which will control the bearing/ bushing
depth.
The housing requires the use of bearing mandrel to
press bearing/ bushing (19) into the housing to a
required depth of 0.151/0.161 inches (3.84/4.09
mm) from the end of the bearing counterbore.
NOTE: Bearing mandrel must be pressed against the let-
tered end of bearing shell. Take care that the hous-
ing bore is square with the press base and the
bearing/ bushing is not cocked when pressing a
bearing/bushing into the housing.
IF A BEARING MANDREL IS NOT AVAILABLE AND ALTERNATE
METHODS ARE USED TO PRESS IN BEARING/BUSHING (13) AND
(19) THE BEARING/BUSHING DEPTHS SPECIFIED MUST BE
ACHIEVED TO INSURE ADEQUATE BEARING SUPPORT AND COR-