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TM 5-4320-306-24
4-13.
REPLACE/REPAIR CRANKCASE ASSEMBLY (Continued)
WARNING
Death or serious injury could occur if diesel fuel oil is not handled carefully. Use in a well-
ventilated area away from open flame, arcing equipment, ignition sources, heaters, or excessive
heat. Always store fuel in proper, marked containers. DO NOT SMOKE.
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 is/has been reduced to 30 psi (2.11
kgcm2) or less. When working with compressed air always use chip guards, eye protection, and
other personal protective equipment.
a.
Clean
cylinder
seats
(1)
thoroughly with diesel fuel oil and
dry with compressed air Mount
crankcase cylinder seat refacing
tool No 150020 (2) with supports
onto cylinder seat. Install bolts
(3) but do not tighten. Make sure
tool is still movable.
b.
Center refacing tool (1) on inside
lip of cylinder bore (4) with
centering fingers (5). Tighten
bolts (3) securely.
c
Withdraw centering fingers and
position seat cutter holder (1)
over inside lip of cylinder seat (2)
with positioning screw (3) and
small slot-head screwdriver (4).
4-114
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