Komatsu HD785-5, Operation & Maintenance Manual

Page: 111 / 307

.
OPERATION
OPERATION
ADJUSTMENT BEFORE OPERATION
ADJUSTING OPERATOR'S SEAT
WARNING
Adjust the seat position at the beginning of each shift or when operators change.
Adjust the seat so that the brake pedal can be depressed all the way with the operators back against the backrest.
(A) Fore-and-aft adjustment
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) Setting seat for operator's weight
Turn grip (3) under the seat to adjust weight adjustment scale (4)
to your own weight.
Adjustment range: 50 to 120kg (110 to 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) Seat height adjustment
Move lever (6), set the seat to the desired position, then release the lever.
Adjustment range: 50 mm (2.0 in)
3 - 65