 |
|||
|
|
|||
|
|
|||
| ||||||||||
|
|
 TM 10-3930-644-14&P
(6) To reinstall the bull gear, align the
spiral pin holes and the pins, and
tap until the gear is started into the
wheel. Install capscrews originally
removed
and
continue
gear
installation by tightening capscrews
and tapping the bull gear at the
same time.
(7) To ensure that the bull gear is
seated correctly in the wheel bore,
try to insert a . 003" feeler gauge
between the gear and the shoulder.
When the gear is properly seated,
the feeler gauge will not enter at any
point.
c. Replacing Solid or Cushion Tire
Figure 7. Bull Gear Removed
The wheels used on all cushion tire lift
b. Replacing Bull Gears
trucks are machined from a casting. Any
misalignment of the wheel and tire, while
(1) Remove the three capscrews which
pressing the wheel into the tire, can cause
bolt the bull gear to the inner side of
the wheel.
possible damage to the wheel. Because
(2) Turn the wheel over and using
of this, a chamfer his been provided on
standard, hardened capscrews with
the outside edge of the wheel and on
three inches of thread. Insert in the
tether end of the metal insert located on
holes provided in the bull gear.
the inside diameter of the tire.
The
(Figure 7.)
chamfers help center the wheel and tire
(3) Tighten the capscrews evenly until
the bull gear is removed from the
for pressing and reduce the possibility of
wheel bore.
any misalignment. The chamfered edge
(4) Inspect the bull gear for any broken
of the wheel must always be the leading
or worn teeth or cracks in the ring.
edge of the wheel when the wheel is being
Replace if damaged.
pressed into the tire.
(5) To prevent any damage to the bull
gear when installing the spiral pins,
When replacing worn or ,damaged tires
the edge of the outer coil should lie
on the bolt circle diameter as shown
the wheel chamfer is not noticeable. To
in Figure 8.
assure that the chamfered edge enters the
new tire first always position the new tire
on top of the wheel and tire assembly with
the outside of the wheel and tire assembly
up.
Figure 8. Spiral Pin Installation
Figure 9. Tire Replacement
3-138
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals