Hitachi ZAXIS 450LC-3 Operator's Manual page 372

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Adjust the Bucket Linkage (Backhoe) --- as required

When play in the linkage increases, remove and install shims

1. Park the machine on a level surface. Lower the bucket to

the ground with the flat side down so that the bucket

will not roll.

2. Run the engine at slow idle. With the bucket on the

ground, slowly swing counterclockwise slightly until the

top of the left bucket boss contacts the arm.

3. Stop the engine. Pull the pilot control shut-off lever to

the LOCK position.

4. Adjust the clearance between arm and bucket to become

from 0.5mm to 1.5 mm (0.02 – 0.06 in) by Shims.

NOTE: The product is shipped with shims from the factory.

1 mm (0.04 in) : 2 pieces,

1.6 mm (0.063 in): 1 piece

: 1 mm (0.04 in) : 2 pieces,

2 mm (0.08 in): 2 piece

Zaxis 650lc-3 Zaxis 850lc-3