SECTION 2 - GENERAL
3121788
2-11
Components Removal and Installation
1. Use adjustable lifting devices, whenever possible, if
mechanical assistance is required. All slings (chains,
cables, etc.) should be parallel to each other and as
near perpendicular as possible to top of part being
lifted.
2. Should it be necessary to remove a component on
an angle, keep in mind that the capacity of an eye-
bolt or similar bracket lessens, as the angle
between the supporting structure and the compo-
nent becomes less than 90°.
3. If a part resists removal, check to see whether all
nuts, bolts, cables, brackets, wiring, etc., have been
removed and that no adjacent parts are interfering.
Component Disassembly and Reassembly
When disassembling or reassembling a component,
complete the procedural steps in sequence. Do not par-
tially disassemble or assemble one part, then start on
another. Always recheck your work to assure that noth-
ing has been overlooked. Do not make any adjustments,
other than those recommended, without obtaining
proper approval.
Pressure-Fit Parts
When assembling pressure-fit parts, use an anti-seize or
molybdenum disulfide base compound to lubricate the
mating surface.
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 install.
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
bearing 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. Self locking fasteners, such as nylon insert and
thread deforming locknuts, are not intended to be
reinstalled after removal. Always use new replace-
ment hardware when installing locking fasteners.
2. 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 hav-
ing the same specifications of the original, or one
which is equivalent.
3. Unless specific torque requirements are given
within the text, standard torque values should be
used on heat-treated bolts, studs, and steel nuts, in
accordance with recommended shop practices.
(See Torque Chart Section 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 a 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 intervals. When recommended lubricants
are not available, consult your local supplier for an
equivalent that meets or exceeds the specifications
listed.
Battery
Clean battery, using a non-metallic brush and a solution
of baking soda and water. Rinse with clean water. After
cleaning, thoroughly dry battery and coat terminals
with an anti corrosion compound.
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