TM 5-4310-393-14
5-6.12. CRANKCASE.
This task covers: A. Inspect B. Install
Tools:
Materials/Parts:
Shop Set, Automotive Field
Diesel Fuel NSN 9140-00-286-5294
Maintenance, Basic
Lubricating Oil
0-ring 50153800 & 40022000
Gasket 50001500
Equipment Conditions:
Crankshaft Removed From Engine
A.
Inspect.
1.
Disassembling the Crankcase for Inspection.
a.
Remove dipstick (Figure 5-52, Item 1) from crankcase (2). Remove and discard O ring (3).
b.
Remove cap screw (4). Remove and discard O-ring (5).
c.
Remove cylinder pin (6)
d.
Remove oil drain plug (7). Remove and discard gasket (8).
2.
Cleaning and Inspecting the Parts.
WARNING
DEATH OR SERIOUS INJURY COULD OCCUR IF FUEL IS NOT HANDLED
CAREFULLY. USE IN A WELL VENTILATED AREA AWAY FROM OPEN FLAME,
ARCING EQUIPMENT, IGNITION SOURCES, HEATERS, OR EXCESSIVE HEAT.
ENGINE MUST BE SHUT DOWN AND COOL BEFORE REFUELING. ALWAYS
STORE FUEL IN PROPER, MARKED CONTAINERS. DO NOT SMOKE.
WARNING
DEATH OR SERIOUS INJURY COULD OCCUR IF COMPRESSED AIR IS DIRECTED
AGAINST THE SKIN. DO NOT USE COMPRESSED AIR FOR CLEANING OR
DRYING UNLESS THE PRESSURE HAS BEEN REDUCED TO 30 PSI (2.06 BAR) OR
LESS. WHEN WORKING WITH COMPRESSED AIR ALWAYS USE CHIP GUARDS,
EYE PROTECTION, AND OTHER PERSONAL EQUIPMENT.
WARNING
LIVE STEAM USED FOR CLEANING SHALL NOT EXCEED 100 PSI (6-9 BAR). USE
GOGGLES OR FACE SHIELD FOR EYE PROTECTION. DO NOT DIRECT LIVE
STEAM AGAINST SKIN.
a.
Clean crankcase thoroughly with live steam. Clean all exterior openings and surfaces. Be especially sure
to clean oil passages to make sure they are clear. Use a small grid or large wire bristle brush where necessary to remove
carbon or other deposits from openings and surfaces. Use diesel fuel as necessary to soften and remove carbon or
hardened oil deposits. Dry with compressed air.
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