Komatsu — 12.1 CHECK BEFORE STARTING ENGINE

12. OPERATION 12.1.3 ADJUSTMENT BEFORE OPERATION ADJUSTING OPERATOR’S SEAT WARNING Park the machine in a safe place and stop the engine when carrying out adjustment of the operator’s seat. Adjust the seat before starting operations or when changing operators. Adjust the seat so that you can depress the brake pedal fully with your back against the seat backrest. A Adjusting fore-and-aft position Move lever 1 to the right, set the seat to the desired position, then release the lever. Adjustment range: 140 mm (5.5 in) (7 stages) B Adjusting seat angle Pull lever 2 up, set the seat angle to the desired position, then release the lever. Adjustment range: Seat surface approx.

2.7° up and down C Adjusting seat weight Turn grip 3 under the seat to adjust weight adjustment scale 4 to your own weight. Adjustment range: 50 kg – 120 kg (110 – 265 lb) REMARK To make the seat softer, adjust the weight to make it lighter; to make the seat harder, adjust the weight to make it heavier. When traveling on rough road surfaces, make the seat harder before starting operations. D Adjusting backrest angle Pull lever 5 , set the backrest to the desired position, then release the lever. Adjustment range: 28 stages (56°) E Adjusting seat height Move lever 6 , set the seat to the desired position, then release the lever. Adjustment range: 50 mm (2.0 in) 2-60