Reach Assembly Outer Frame
4500 SRM 971
CAUTION
Do not let the load bearings or shims fall off the
scissor arms.
5.
Carefully move the top of the outer frame away
from the scissor arms. Slowly lower the outer
frame until the load bearings at the bottom of the
scissor arms are out of the frame channels. Move
the outer frame away from the scissor arms. Put
the outer frame on the ground so that the scissor
side is down.
NOTE:
Install labels for each set of shims and the
load bearing for correct installation during installa-
tion of the outer frame. When new load bearings 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.
DISASSEMBLE WITHOUT SIDESHIFTER
NOTE:
The bearings for the outer frame are normally
removed and installed with the outer frame. The
selector valve for the tilt/sideshift functions is also
installed on the outer frame. Plugs are installed at
the ports for the sideshift cylinder and the solenoids.
The tilt pivot assembly is also installed on the outer
frame.
1.
Remove the tilt cylinder and tilt pivot assemblies
as described in Tilt Cylinder.
2.
Remove the solenoid valve body and hose guide.
Disassemble the selector valve as described in
Tilt/Sideshift Selector Valve Repair, Disassem-
ble.
CLEAN AND INSPECT
WARNING
Cleaning solvents can be flammable and toxic
and can cause skin irritation. Wear protection
for eyes and skin.
When using cleaning sol-
vents, always follow the recommendations of
the manufacturer.
CAUTION
Do NOT use steam to clean the load bearings.
Do not use compressed air on the bearings.
The bearings are sealed and permanently lu-
bricated. The air can force the lubricant out of
the bearings.
NOTE:
Inspect the load bearings of the scissor arms
for wear or damage. If necessary, replace the load
bearings before installing the outer frame.
Clean all parts of the outer frame with solvent. Dry
the parts with compressed air. Inspect the parts of
the outer frame for damage and wear.
ASSEMBLE WITHOUT SIDESHIFTER
For the following procedures, see Figure 9.
NOTE:
The bearings for the outer frame are normally
removed and installed with the outer frame. The se-
lector valve is installed on the outer frame.
1.
If removed, install the solenoid valve on the outer
frame.
2.
To assemble, reverse the removal procedure.
INSTALL WITHOUT SIDESHIFTER
For the following procedures, see Figure 9.
NOTE:
Make all repairs for the scissor arm assembly
before installing the outer frame. See Single-Reach
Scissor Arms and Double-Reach Scissor Arms to re-
pair the scissor arm assembly. If necessary, install
new load bearings using the same shims as marked
during removal of the outer frame. When new load
bearings are installed, the shim arrangement will
normally be the same or similar.
NOTE:
The outer frame can be installed with the
forks installed.
WARNING
The outer frame is heavy and can cause an
injury during installation.
NEVER put any
part of your body between the outer frame and
the scissor arm assembly. Tipping is even more
possible if the forks are installed. Make sure to
install the chains or slings between the crane
and outer frame to prevent tipping.
1.
Use a crane as a support for the outer frame.
Move the outer frame into the approximate posi-
tion for installation on the scissor arm assembly.
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