4500 SRM 971
Inner Frame Assembly
DISASSEMBLE
NOTE:
It is usually not necessary to remove all the
parts of the inner frame assembly. Remove only the
necessary parts to do the repair. The thrust rollers
are removed during removal of the inner frame as-
sembly.
1.
If necessary, remove the reach cylinders.
See
2.
Remove the jam nuts and setscrews for the wear
plugs.
3.
If necessary, replace the wear plugs by pushing
at the back of the wear plug. See Figure 13.
1.
LOAD ROLLER
2.
WEAR PLUG
3.
SNAP RING
4.
SETSCREW
5.
JAM NUT
6.
STUB SHAFT
7.
INNER FRAME
Figure 13. Load Roller and Wear Plug Assembly
WARNING
Be careful when removing or installing snap
rings.
These snap rings are large and can
come loose during removal or installation with
enough force to cause an injury. Always use
the correct snap ring pliers, and wear eye and
face protection during removal or installation.
4.
Remove the snap rings from the stub shaft for the
load roller.
5.
Use a pry bar to remove the load roller from the
stub shaft for the load roller. See Figure 14.
1.
LOAD ROLLER WITH SNAP RING REMOVED
2.
PRY BAR
3.
MAST OR CARRIAGE (CARRIAGE SHOWN)
Figure 14. Removing Load Roller
6.
Remove the capscrews that fasten the side roller
brackets. Remove the side rollers and shim sets.
Install labels for correct installation of the shim
sets in the same positions. When the new side
rollers are installed, the shim arrangement will
normally be the same or similar.
NOTE:
Correct placement of shims is critical for the
operation of the reach mechanism. Unless the shims
are installed correctly, the reach mechanism will not
operate.
7.
If necessary, remove the hydraulic lines and
hoses at the base of the inner frame.
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