TM 10-4320-307-24
4-17
CRANKSHAFT ASSEMBLY REPLACE'REPAIR _(CONT)
INSTALLATION:
Live steam used for cleaning shall not exceed 100 psi (690 kPa). During
steam cleaning operations, adequate ventilation, natural or forced, should be
provided. Do not direct live steam against skin.
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.
CAUTION
After crankshaft has been steam cleaned, do not touch the machined
surfaces with bare hands. This will cause rust to form. Lubricate crankshaft
before han-dling.
1
If new crankshaft is to be installed, steam clean It to remove rust preventive. Blow through oil passages with com-
pressed air.
2.
Lubricate new crankshaft with lubricating oil before handling.
3.
Pass a 3/4-inch (19.05 mm) rope or fabric lifting sling through cylinder bores 1 and 6. attach to suitable lifting gear
and support crankshaft in approximate position for installation of bearings and bearing caps.
CAUTION
Equipment damage could occur if bearing caps or bearings are not returned to
their original positions. Follow match marks made during disassembly.
NOTE
When a new or reground crankshaft is installed. ALL new main and center bearings and
bearing shells (upper and lower) must also be Installed.
4.
Check match marks on main bearing shells and bearing caps and lay shells and caps out in correct position for instal-
lation. Be sure that caps are layed out in proper direction as well as position as indicated by match marks.
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