Template Date: 1994_04_22
SINGLE CHAIN ROLLER BEARING
REPLACEMENT
STEP 26
Remove the inner boom section. See Section 703 of
this manual for correct procedure.
NOTE:
The inner boom section must be removed
from the intermediate boom section to gain enough
space to remove the sheave pin for the single chain.
STEP 27
G1659MP
Loosen and remove the retainer bolt and nut from the
rear sheave pin. Remove the single chain from the
sheave pulley and position the single chain out of the
way.
STEP 28
G1660MP
Remove the grease fitting from the sheave pin.
Remove the sheave pin from the roller bearing.
STEP 29
Remove the roller bearing.
STEP 30
G1646MP
The roller bearing and sheave should be assembled
before installing. Press the roller bearing into the
sheave, apply grease to the inside of the roller
bearing, and then insert the inner ring into the roller
bearing.
STEP 31
G1660MP
Place the roller bearing assembly between the
sections of the mount, then insert the pin. Be sure
the retainer bolt holes are lined up.