3. CONTROLS AND INSTRUMENTATION

OPERATOR'S SEAT CAUTION

Before adjusting the operator's seat and the joysticks, make sure that the safety lever (fig. 1) is in the uppermost position to avoid any unexpected movements of the hydraulic excavator.

Your hydraulic excavator comes equipped with a standard operator's seat (fig. 3) or optionally with a suspension seat (fig. 4).

Adjustment

Adjusting the operator's seat horizontally with respect to the 2 control panels is possible after lifting lever 1 (fig. 2).

Independent of this adjustment, the entire seat including the 2 control panels can be slid horizontally after lifting lever 2. Adjusting the seating suspension to body weight is done via the outer ring of the rotary switch 5 (fig. 3) or via key 7 (fig. 4).

Adjusting the seat cushion angle and the seat height is done via levers 4a and 4b (fig. 3 and 4).

By lifting lever 4a the seat cushion in back can be tilted up or down.

By lifting lever 4b the seat cushion in front can be tilted up or down.

Adjusting the angle of the back rest is done via lever 6 (fig. 3 and 4).

Lift lever 6

Move the back rest to the desired angle

Release lever 6.

Adjusting the lower back support in the back rest occurs via keys 8 and 9 (fig. 4).

The angle of the right and left arm rests can be adjusted. Turn the knurled screws 3 (fig. 3) beneath the arm rests in the appropriate direction.

Vibration Damping

The seat mounted in the excavator corresponds to ISO 7096 standards.

When used according to the excavator's specifications, the values of the vibration load transmitted by the operator's seat are less than or equal to the test vibrations of the corresponding machine type according to ISO 7096 standards. The resulting vibration acceleration values "azw", measured according to ISO 2631, part 1, standards, meet the demands for vibration protection of the entire body according to EN 474-1 (acceleration "azw" between 0,5 and 2,5 m.s-2).

H10-1

S1

S2

S4

S71 Switch / Diesel engine RPM control in "manu"

S72 Engine RPM adjustment in mode "manu"

S73 Switch / Safety mode of the servo circuits

U21 Left joystick

U22 Right joystick

U24 Pedal for travel

U25 Control lever - outriggers

U26 Swing brake (Positioning brake) *

U38 Control unit - air conditioner

U45 Joystick for cab position adjustment *

U58 Joystick for steering *

* Optional equipment

Safety lever - Servo control 1

For safety reasons, a safety lever is installed on the left console. The operator must move this lever up before

The operator may only push the lever down when he is again

When the safety lever is up, the servo pressure supply is interrupted, and no working movements are possible if the joysticks are accidentally actuated.

At the same time the swing brake apply and can no longer be released via the button S17.

When pushing the safety lever down, the brakes recover the previous state (applied or released) before the lever had been pulled up.

Buzzer H10

During operation, the buzzer H10 sounds to alert the operator, if : the coolant level is low (warning symbol on screen 200, page 3.6). the engine oil pressure is low (indicator light H2 on monitoring display).

In both cases, reduce engine speed to low idle. The engine will turn off automatically after a few seconds.

See page 4.20.

On machines with US version, the functions of the push buttons S5L, S5R, S6L, S6R are different from those described below, refer to page 7.1.

Push button S5M - Horn

Push button S6L lifting magnet * See on page 4.20.

Push button S6M - Reserve

Push button S6R *

On machines fitted with a travel alarm, each time a travel pedal is pushed, the travel alarm will sound. This sound can be silenced 10 seconds after travel start by depressing the push button S6R.

Rocker switch S55 *

This rocker switch controls the swing brake when the brake is pre selected in semiautomatic operating mode via the push button S17 (see on page 4.12).

Rocker switch S57 for swing brake control

This rocker switch is used to preselect the travel direction, see on page 4.10.

Switches S71, S72 and S73, see on page 3.24.