Crankshaft - Farmall 90 Manual

CRANKSHAFT

CAUTION
Handle all parts carefully.
Do not put your hands or fingers between parts.
Wear the prescribed safety clothing, including
goggles, gloves and safety footwear.
Clean all parts carefully. If even slight cracks are
found, replace the crankshaft.
-- If any sign of seizure, scoring or ovality is found on
the main journals or crankpins, they must be re-
ground. Before reconditioning, use a micrometer
(2) to measure the pins of the shaft (1) to define the
diameter to which the pins must be reduced.
NOTE: It is advised to note the values on a chart. See
figure 252.
-- The undersize classes are 0.250--0.500 mm
(0.0098--0.0196 in).
MIF0959A
Chart on which to note the measurements of the main journals and crankpins (* Nominal value)
All the main journals and crankpins must be ground
to the same undersizing marked with a stamp on the
side of the crank arm No. 1.
Undersized crankpins with the letter M.
SECTION 10 - - ENGINE - - CHAPTER 1
.
.
MIF0958A
Undersized main journals with the letter B.
Undersized crankpins and main journals with the let-
ters MB.
117
251
.
.
252