b. Apply a thin film of lubricating oil OE-10, Military
Specification MIL-L-2104, to contact surfaces of bearing
and bearing seats before installation.
6-2. This section contains instructions for repairing the
major components and accessories of the truck. The
c. Carefully align bearing with bearing seat before
need for repair or replacement of parts is determined by
installing to avoid cocked or distorted bearings.
performing the inspections and checking the dimensions
specified. If the serviceability of a worn or damaged part
d. Carefully press bearings into their seats with an
cannot be restored by the repair procedures specified in
arbor press or appropriate removing and replacing tool.
the following text, install a new part. The general
Always apply pressure to the race which determines the
instructions are applicable to each' assembly being
fit when installing bearings.
repaired and/or reassembled unless otherwise specified
in the text. Where repair instruction for a part or unit is
e. If bearing must be tapped into its seat, use a
not covered, the part or unit is not subject to rework and
rawhide hammer or cushion the bearing with a block of
defective parts must be replaced with new ones. Where
wood to prevent damage.
related to reassembly, checks for clearances, backlash
and lubrication are included in the text.
6-6. REPAIRING DAMAGED THREADS. If slight
thread damage is found on any threaded surface, repair
6-3. LUBRICATION. Before installing or assembling
the threads with a tap or die of the correct size, as
internal metal parts, coat each part with a thin film of
lubricating oil OE-10, except where such application
would impair operation of the assembled unit. Such
a. Correct internal or tapped thread damage by
lubrication provides easier installation, reduces the
carefully turning the correct size tap into existing threads.
possibility of damage during installation, and assures
Carefully remove tap and inspect threads again to see if
immediate lubrication of the assembly when the
thread damage is obvious. If so, the damage is too
equipment is first started.
extensive to repair and the part must be discarded.
b. For damage to external threads, select a die of
correct size and carefully turn die onto existing threads.
Never apply OE-10 lubricating oil to rubber
Remove die and inspect threads. If damage is still
parts, electrical contacts, or internal parts of
obvious, the part must be discarded.
the hydraulic brake system.
6-4. GASKET REPLACEMENT. Use new gaskets
throughout when reassembling. Soak cork gaskets in
6-8. Overhaul procedures will include painting as a
lubricating oil OE-10, or clean, fresh water for fifteen
necessary step in the completion of the procedure.
minutes before installing.
Apply approved gasket
Before the paint is applied, prepare the surface to be
cement to one side of paper gaskets, when required.
painted in accordance with paragraph 6-10.
INSTALLATION OF BEARINGS.
Solvents used for
extreme care when installing or removing ball, roller or
removing paint are generally toxic and volatile. Avoid
needle bearings. Failure to comply with installation and
inhaling the vapor and take precautions to keep such
removal procedures listed below could result in damaged
compounds from coming in contact with unprotected
bearings and consequent malfunctioning of an
areas of the face or body. Confine the use of such
compounds to a well ventilated room, or apply out-of-
a. Make sure bearings, bearing seats, and tools are
thoroughly cleaned before attempting to install bearings.