ATTACHMENTS
12G-23
SECTION 12G. FRONT ROLLER
DISASSEMBLY
1. Remove the lock nut, deflector cup, and seal on
each end of the roller.
2. Using a soft face hammer, tap one end of the
shaft. Remove the wear sleeves, bearing cone,
and shaft.
3. Use a blind hole puller to remove the bearing cup
from the roller.
NOTE:
When replacing the bearing cup and cone, the
cup and cone should be replaced as a set.
4. Remove the seal.
REASSEMBLY
1. Install a new seal (lip to inside) in each end of the
roller.
2. Install the bearing cup in each end of the roller.
3. Insert the shaft in the roller.
4. At each end of the roller, install the bearing cone
and wear sleeve.
5. Install the oil seals (lip to inside), deflector cup and
nuts.
ADJUSTMENT
1. Tighten locknuts to 10 ft-lbs (13.6 Nm).
2. Continue to torque nuts until 5 to 10 ft-lbs
(0.56 to 1.12 Nm) of rotational torque is achieved.
DO NOT torque nuts more than 30 ft-lbs (40.6
Nm).
LUBRICATION
Refer to Section 11 for additional information on lubri-
cation.
1. If no grease fitting is installed, remove the plug
from the roller.
2. Insert the grease fitting (1/4-28UNF-2B). Slowly
pump grease into the roller until resistance is felt.
3. Remove the grease fitting and replace the plug.
Figure 12G-1. Front Roller
12G
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