SEGMENT (SEM) 5444537 - Caterpillar

Illustration 4 g01261088
Clean pin (1) that is used to mount the grapple to the stick. Install pin (1) and secure the pin.
Illustration 5 g01266235
When you install pin (1), the collar must be rotated in the correct position. Refer to Illustration 5.
Illustration 6 g01261089
Extend the bucket cylinder or retract the bucket cylinder in order to align the pin bore on the power link (4) with the pin bore on the grapple (5).
Illustration 7 g01262072
Clean pin (6) that is used to mount the power link to the grapple. Install pin (6) and secure the pin.
Illustration 8 g01261092
Clean the pin bores that are located in mounting bracket (7), strut (8), and the lower tong of the grapple (9). Clean pins (10) and (11) that are used to mount the strut.
Illustration 9 g01261095
Attach the strut to the lower tong of the grapple with pin (10). Secure the pin.
Attach the strut to the mounting bracket with pin (11). Secure the pin.
Illustration 10 g01261097
Rotate strut (8) until the mounting bracket (7) is positioned against the stick. In order to properly attach the mounting bracket to the stick, the bracket must be welded to the stick.Reference: Refer to Special Instruction, REHS3078, "Installation Procedure for Attaching the Mounting Bracket to the Stick for the Contractor Grapples" for the correct procedure.
Lubricate all of the fittings prior to operating the grapple.
Raise the grapple away from the ground. Extend the bucket cylinder and retract the bucket cylinder in order to check the movement of the grapple.Removal of the Work Tool
Note: If the host machine is equipped with a quick coupler, consult the Operation and Maintenance Manual for the quick coupler before you attempt to remove the work tool.
Extend the bucket cylinder and close the tongs of the grapple.
Illustration 11 g01262852
Lower the grapple until the work tool is on the ground. Place the grapple on a surface that is level and solid.
Stop the engine of the host machine. Cycle all of the controls of the host machine in order to remove the pressure from the hydraulic system. Refer to the Operation and Maintenance Manual of the host machine for additional information on relieving the hydraulic pressure.
Illustration 12 g01262863
Remove pin (11) from the mounting bracket (7) on the stick. Rotate strut (8) away from the stick. Rest the strut on top of the grapple.
Illustration 13 g01262986
Remove pin (6) that is used to mount the power link to the grapple.
Illustration 14 g01262987
Start the engine of the host machine. Retract the bucket cylinder in order to move the pin bore on the power link (4) away from the pin bore on the grapple (5).
Stop the engine of the host machine. Cycle all of the controls of the host machine in order to remove the pressure from the hydraulic system.
Illustration 15 g01262988
Remove pin (3) that is used to mount the grapple to the stick.
Illustration 16 g01262916
Start the engine of the host machine. Raise the stick in order to move the stick away from the grapple.
After removing the grapple from the host machine, coat all of the bushings in the pin bores with grease.