SECTION 2 - PROCEDURES
2-2
– JLG Lift –
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Bearings.
1.
When a bearing is removed, cover it to keep out dirt
and abrasives. Clean bearings in nonflammable
cleaning solvent and allow to drip dry. Compressed
air can be used but do not spin the bearing.
2.
Discard bearings if the races and balls (or rollers)
are pitted, scored or burned.
3.
If bearing is found to be serviceable, apply a light
coat of oil and wrap it in clean (waxed) paper. Do not
unwrap reusable or new bearings until they are
ready to be installed.
4.
Lubricate new or used serviceable bearings before
installation. When pressing a bearing into a retainer
or bore, apply pressure to the outer race. If the bear-
ing is to be installed on a shaft, apply pressure to the
inner race.
Gaskets.
Check that holes in gaskets align with openings in the
mating parts. If it becomes necessary to hand fabricate a
gasket, use gasket material or stock of equivalent material
and thickness. Be sure to cut holes in the right location as
blank gaskets can cause serious system damage.
Bolt Usage and Torque Application.
1.
Use bolts of proper length. A bolt which is too long
will bottom before the head is tight against its related
part. If a bolt is too short, there will not be enough
thread area to engage and hold the part properly.
When replacing bolts, use only those having the
same specifications of the original, or one which is
equivalent.
2.
Unless specific torque requirements are given within
the text, standard torque values should be used on
heat treated bolts, studs and steel nuts, in accor-
dance with recommended shop practices (See Fig-
ure 1-1).
Hydraulic Lines and Electrical Wiring.
Clearly mark or tag hydraulic lines and electrical wiring, as
well as their receptacles, when disconnecting or removing
them from the unit. This will assure that they are correctly
reinstalled.
Hydraulic System.
1.
Keep the system clean. If evidence of metal or rub-
ber particles are found in the hydraulic system, drain
and flush the entire system.
2.
Disassemble and reassemble parts on clean work
surface. Clean all metal parts with non-flammable
cleaning solvent. Lubricate components, as
required, to aid assembly.
Lubrication.
Service applicable components with the amount, type,
and grade of lubricant recommended in this manual, at
the specified interval. When recommended lubricants are
not available, consult your local supplier for an equivalent
that meets or exceeds the specifications listed.
Batteries.
Clean batteries using a non-metallic brush and a solution
of baking soda and water. Rinse with clean water. After
cleaning, thoroughly dry batteries and coat terminals with
an anti-corrosion compound.
Lubrication and Servicing.
Components and assemblies requiring lubrication and
servicing are shown in Lubrication Chart.
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