Komatsu — Komatsu PC450-6K and PC450LC-6K Hydraulic Excavator Operation & Maintenance Manual

12. OPERATION 12.1.3 ADJUSTMENT BEFORE OPERATION OPERATOR’S SEAT (A) Fore-and-aft adjustment of seat Pull lever y up. After the seat is set to the desired position, release the lever. Adjustable distance: 160 mm (B) Adjustment of reclining seat Pull lever b up. After the seat back is set to the optimum position for easy operation, release the lever. (C) Adjustment of seat tilting angle 1. Forward tilting Pull lever c up to release locking. After the seat is set to the optimum position for easy operation, release the lever to lock it. 2. Backward tilting Push lever c down to release locking. After the seat is set to the optimum position for easy operation, release the lever to lock it. 3.

Seat height adjustment By a combination of step 1 and 2 , the seat can be moved up and down. After the desired height is set by forward/backup tilting, bring the seat to the horizontal position by reverse-tilting and fix it. Adjustable height: 60 mm (2.4 in) PC450-ENG 2-44