TM 5-2420-230-24-1
REPAIR OUTPUT SHAFT AND PINION (M110 ONLY)
1. The pinion gear is located and held in place on the
output shaft with a retaining pin. A roll pin
through the pinion gear will keep the retaining pin
from backing out of place. To remove the pinion
gear, punch out the roll pin and drill out the retain-
ing pin. Press the pinion gear off the output shaft
(Figure 111).
NOTE:
If the retaining pin cannot be drilled out, it can be
sheared off with approximately 10 tons of pressure
on a hydraulic press. Drive half the pin out of the
pinion gear and drill the remaining half out of the
shaft.
Figure 111
WARNING
USING A HYDRAULIC PRESS IMPROP-
ERLY CAN CAUSE PIECES OF METAL
TO BREAK OFF OR SHATTER. PIECES
O F METAL UNDER PRESSURE CAN
C AU S E SERIOUS INJURY. ALWAYS
WEAR SAFETY GLASSES AND FOLLOW
ALL SAFETY AND OPERATING PROCE-
DURES PROVIDED BY THE HYDRAULIC
PRESS MANUFACTURER.
2. To reassemble the pinion gear to the output shaft,
align the timing arrows on the output shaft to the
arrow on the pinion gear. Press the gear on to the
shaft splines until the locating pin can be driven
Figure 112
through the gear and into the locating hole in the
shaft. Install the roll pin through the gear
(Figure 112).
K-84
