d . P o s i t i v e camber - clearance between the inner
prong and the bearing surface should normally be
b. Place axle gauge in position on front side of
between .040 in. (1.016 mm) and .080 in. (2.032 mm).
the axle (see paragraph 10-6).
As long as the axle maintains camber, it should be
c. With the single pronged end of the gauge held
firmly against the inner bearing surface, adjust the
e. Negative camber - clearance between the
double prongs on the other end of the gauge until
outer prong and the bearing surface will indicate a
they contact the inner and outer bearing surface.
Recamber or replace axle (see fig-
d. Now move the gauge over to the rear side of
the axle. If either of the two (2) prongs fails to make
10-23. RUBBER BUSHINGS.
c o n t a c t , a bent spindle is indicated. Use a feeler
gauge to determine the amount of the bend. If bend
is in excess of .0156 in. (0.3962 mm), replace the
1 0 - 2 5 . The rubber bushed tandem is designed to
provide long and satisfactory life. However, if it is
e. If checking both sides of one spindle reveals
secure proper tandem alignment or if
no bend in the axle, turn the gauge end for end and
i n s p e c t i o n reveals need for replacement (rubber
check the other spindle without disturbing the set-
bulging, breaks, or slices), the change can be made
ting of the prongs.
with a minimum of equipment.
f. If there is clearance at either bearing surface,
check with a feeler gauge. If the prongs are in con-
10-26. REPLACEMENT OF RUBBER BUSHINGS.
tact at both points, the axle is not bent.
10-21. CHECKING AXLE CAMBER.
1 0 - 2 2 . Incorrect camber will cause wear on one
side of the tread. Check as follows:
a. Follow procedure presented to determine axle
is not bent. If so determined, proceed with steps b
b. Set the points of the axle gauge in exactly
the same position on the axle and in the same man-
ner as outlined in steps b and c in paragraph 10-20.
c. Place the gauge directly under the axle.
FIGURE 10-6. CHECKING FOR AXLE BEND AND CAMBER.