JLG G6-42P Service Manual - Manual (Page 308)

Section 3
Prepare Parts for Assembly
16
Inspect Main Housing
• For fractures and burrs in machined areas.
Inspect Yoke
• For wear at seal journal area. Replace yoke,
flange or sleeve if either shows too much wear at
seal journal area.
Inspect Planetary System
Parts
• For existence of cracks, pitting, breaks or sharp
edges on planetary gear teeth, planetary gear
axles and rollers.
Inspect Brakes
• For condition of friction discs, brake piston springs
and internal brake housing surfaces.
Repair or Replace Parts
General Information
Replace worn or damaged parts of an axle assembly.
The following are some examples to check for repair
and possible replacement:
• Replace any fastener if corners of the head are
worn.
• Replace washers if damaged.
• Replace gaskets, oil seals or grease seals at the
time of axle repair.
• Clean parts and apply new liquid gasket material
where required when axle is assembled.
• Remove nicks, marks and burrs from parts having
machined or ground surfaces. Use a fine file, India
stone, emery cloth or crocus cloth for this purpose.
• Clean and repair threads of fasteners and holes.
Use a die or tap of the correct size or a fine file for
this purpose.
CAUTION
Threads must be without damage and clean so
that accurate adjustment and correct torque
values can be applied to fasteners and parts.
• Tighten all fasteners to correct torque values. See
chart in Section 6 for fastener torque values.
WARNING
Do not repair axle housings by bending or
straightening. Repair of axle housings by
bending or straightening can cause poor
performance and possible unsafe operation of
the axle. This can cause serious personal injury.
Repair Welding
In the interest of safety and preserving the service
life of drive axle assemblies, Meritor recommends
that assemblies are not repair welded. Repair
welding can detract from the structural integrity of a
component, particularly to heat treated parts where
the benefit of heat treatment may be nullified by
welding.
Since it can be extremely hazardous and detrimental
to repair weld components of any kind, repair welding
can be approved only where stringent controls are
imposed and equipment, customarily located at
manufacturing facilities, is employed, so as to
minimize the potentially detrimental effects of repair
welding.
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