DIRECT AND GENERAL SUPPORT MAINTENANCE
INSTRUCTIONS
Section I. GENERAL
4-1. Scope
For record and report forms applicable to
These instructions are published for the use of
direct and general support and depot main-
direct and general support maintenance per-
tenance, refer to TM 38-750.
sonnel maintaining the lubricating and serv-
icing unit. They provide information on the
Note. Applicable forms, excluding Standard Form
maintenance of the equipment, which is beyond
46. which is carried by the operator, shall be kept in a
the scope of tools, equipment, personnel, or
canvas bag mounted on the equipment.
supplies normally available to using organiza-
tions.
Section Il. DESCRIPTION AND TABULATED DATA
data on the lubricating and servicing unit refer
4-3. Description
For a complete description of the lubricating
and servicing unit, see paragraph 1-3.
c. Engine Data. Refer to TM 5-2805-203
14 for tabulated data related to the engine.
d. Repair and Replacement Standards. Table
a. General. This paragraph contains all the
4-1 lists the manufacturer's sizes, tolerances,
overhaul data pertinent to direct and general
desired clearance and maximum allowable
support maintenance personnel.
wear and clearances for the components of the
b. Lubricator Data. For complete tabulated
REPAIR AND REPLACEMENT STANDARDS
Table 4-1.
Manufacturer's
Desired clearance
wear and
Clearance
Maximum
Minimum
Maximum
Minimum
Crankshaft:
-----
-----
0.0015
End play
0.002
0.0005
Connecting Rods:
0.0004
0.0005
-----
0.0001
-----
Wrist pin
0.0008
0.0016
-----
0.0008
-----
Crank pin
Piston, H.P.
----
-----
-----
-----
Ring gap
0.003
-----
-----
-----
0.0005
Side clearance
0.0005
Piston, L.P.
-----
-----
-----
-----
0.003
Ring gap
-----
-----
___
0.0015
Side clearance
0.0015
