Check and Adjust Boom Lock

Checking Boom Lock Operation

1. Operate the boom lock lever repeatedly to verify proper operation. (See Operating Boom Lock in Operating the Machine chapter for operational instructions.)

2. If boom lock is out of adjustment, adjust per procedure.

Adjusting the Boom Lock

IMPORTANT: To avoid damage to lock, adjust lock so it is able to pass through full range of motion. Lock must go down to post (E) and up to stops (A).

Perform the following adjustment for both the left and right boom locks:

NOTE: Boom lock is not shim adjustable.

1. Operate the machine and engage the boom lock. Stop the engine.

2. Remove pin (B) from boom lock.

3. Adjust position of yoke (C) so when the boom lock control lever is at rest, yoke is aligned with pin mounting hole.

4. Tighten jam nut (D) to hold yoke in adjusted position.

5. Install pin.

6. Check boom lock operation per procedure to verify proper operation.

T105667

Right Side Shown


A-Stop (4 used)
B-Pin (2 used)
C-Yoke (2 used)
D-Jam Nut (2 used)
E-Post (2 used)

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