LEVER AS 1869270 - Caterpillar

Once the work tool has been properly attached to the coupler, no loosening of the work tool should occur. Refer to the , "Quick Coupler Installation and Removal" section of the quick coupler Operation and Maintenance Manual for additional information. If at any point after the proper attachment and back drag testing of the work tool, should the work tool then become loose or if the rear pin of the work tool detaches from the movable hook, stop work immediately and safely ground and detach the work tool. Consult your Cat dealer to inspect the coupler prior to putting the coupler back into service. This situation could indicate potential coupler damage that may not be readily visible to the customer or operator of the machine and coupler.
Electric Switch Operation
Illustration 1 g06184557Quick coupler switch (1) is located inside the cab on the switch panel to the left of the operator's seat. The electric switch has only one position for coupling the work tool and uncoupling the work tool. The switch is equipped with a safety lock (2). The locking tab must be pushed forward before the switch can be pressed.Coupling the Work Tool
Inspect the coupler wedge engagement before you operate the excavator.Serious injury or death may result from an improperly engaged coupler.Inspect coupler wedge engagement from the cab by rotating the bucket or the work tool inward. Extend the bucket cylinder to bring the coupler actuator into view and bring the stick in until the wedges are visible.
Illustration 2 g06220881
Position the work tool on a level surface.
Retract the bucket cylinder. Position the quick coupler in alignment between the hinges of the work tool.
Illustration 3 g06220883
(1) Hinges
(2) Lower bosses
Move the stick forward and raise the stick until the lower bosses (2) engage the hinges (1) of the work tool.
Push the locking tab on the switch forward and then depress the rear of the switch until the quick coupler holds the work tool.
Illustration 4 g06220887
(3) Center bosses
(4) Locking area
Extend the bucket cylinder to rotate the quick coupler toward the work tool.Center bosses (3) must engage with the cutout of the hinge.
Release the quick coupler switch to lock the work tool.The springs in the quick coupler will move the wedge into the locking area (4).
Illustration 5 g06220888
Raise the boom or raise the stick. Retract the bucket cylinder to confirm that the wedge is fully engaged. If the wedge is fully engaged, the work tool is locked in place. The work tool is ready to use.Uncoupling the Work Tool
Place the work tool or bucket in a safe position before disengaging the coupler. Disengaging the coupler will release the work tool or bucket from control of the operator.Serious injury or death may result from disengaging the work tool or bucket when it is in an unstable position or carrying a load.
Illustration 6 g06220889
Level the bucket or level the work tool on the ground.
Push the locking tab on the switch forward and then depress the rear of the switch until the quick coupler releases the work tool.
Illustration 7 g06220891
Retract the bucket cylinder