TM 5-1940-277-34
CRANKSHAFT INSPECTION AND REPLACEMENT INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
d.
Crankshaft
a.
Inspect for
(22)
surface cracks
along loading
zones (see figure)
using one of
following
methods:
Magnetic
Check any indica-
Particle
ted cracks with
Method,
a pointed instru-
Fluorescent
ment to determine
Magnetic
if it is a crack.
Particle
Scratch along
Method,
crack line to
Fluorescent
verify cracking.
Penetrant
Dye Method.
b.
Verify crack
indications.
c.
Replace if
cracked.
d.
Replace shaft
if heat damage
is indicated
by discolora-
tion.
INSTALLATION
7.
Crankshaft (22)
a.
Key (24)
Install to posi-
tion gear cor-
rectly.
b.
Gear (23)
Drive onto
Use brass drift
shaft.
and ball peen
hammer.
3-65
