(WITH AUTO-DECELERATION MECHANISM) This adjusts the engine speed and output

(1) Low idling (MIN): Turned fully to the left (2) Full speed (MAX): Turned fully to the right

3. CIGARETTE LIGHTER

This is used to light cigarettes. To use, push the lighter in. After a few seconds it will spring back.

Pull out the lighter and light your cigarette.

Nothing may be connected to the cigarette lighter without the prior permission of an authorised Komatsu distributor.

4. SWING LOCK SWITCH

WARNING

● When the machine is travelling under its own power, or when the swing is not being operated, always set the switch to the ON (ACTUATED) position.

● On a slope, the work equipment may swing to the down side even if the swing lock switch is located at the ON position. Be careful concerning this point.

This switch is used to lock the upper structure so that it cannot swing. ON position (actuated):

The swing lock is always applied, and the upper structure will not swing even if the swing is operated. In this condition, the swing lock lamp lights up.

OFF position (cancelled):

The swing lock is applied only when the swing control lever is at neutral; when the swing control lever is operated, it is cancelled.

5. CONTROL LEVER LOCK SWITCH

WARNING

When travelling on public roads, set this switch to the off position. This prevents operation of the work equipment and activates the rear facing brake lamp circuits.

This switch enables operation of the work equipment control levers.

ON position (actuated):

Operation of the control levers must be disabled by use of this switch when the machine is travelling on Public roads.

OFF position (deactivated):

The switch is lit in the on (actuated) position.

6. LAMP SWITCH

This switch turns on the working lamps and monitor illumination.

7. ALARM BUZZER STOP SWITCH

This is used to stop the alarm buzzer when it has sounded to warn of some abnormality in the EMERGENCY STOP ITEMS while the engine is running.

8. LOWER WIPER SWITCH (If fitted) This switch actuates the front lower wiper.

OFF: wiper stops

ON: wiper moves continuously

NB. Do not operate with front lower screen removed.

1 2 3

(1) OFF

(2) Standard work lamps

(3) Standard and additional work lamps (if fitted)

AM089440A

OFF

ON

9. HORN BUTTON

When the lower button on the left work equipment control lever is pressed, the horn will sound.

Note: Additional horn switch is switch 25.

10. KNOB BUTTON

The upper button of the left work equipment control lever is used to actuate the power max./swift slow-down functions. Press the button once (single click) and keep it depressed. In the heavy-duty and general operation modes, the power max. function ates for max. 8.5 seconds and the swift slow-down function actu-ates while the button is depressed.

11. HEATED OPERATOR SEAT SWITCH (If fitted) This switch is used to switch on the heated seat.

OFF: seat not heated ON: seat heated

12. BEACON SWITCH (If fitted)

This switch is used to switch on the rotating beacon.

OFF

ON: beacon lights, lights and rotates.

OFF

OFF

13. CAB LAMP SWITCH This lights up the cab lamp.

ON position: Lights up

The cab lamp can be turned on even when the starting switch is at the OFF position, so be careful not to leave it on by mistake.

14. PUMP CONTROL OVERRIDE SWITCH (2) When normal: Switch is down

(1) When abnormal: When the monitor display shows E02 (TVC valve system error), it is possible to carry out operation when this switch is moved up. The pump control override switch is designed to allow operations to be carried out for a short period when there is an abnormality in the pump control system (TVC valve system error). The abnormality must be repaired immediately.

15. SWING LOCK OVERRIDE SWITCH (2) When normal: Switch is down

(1) When abnormal: When the monitor display shows E03 (swing brake system error), the brake is cancelled and it becomes possi-ble to swing the upper structure when this switch is moved up, so normal operations can be carried out. However, the swing brake remains cancelled.

AM089510A

1

2

AM166910B

13

AM166920B 14 15

1

2

AM089520A

1

2

16. PARK BRAKE SWITCH

This switch is used to apply and release park brake.

OFF: Park brake released (warning light not illuminated) ON: Park brake applied (warning light illuminated)

Note1: When moving off from a standstill up an incline it will be necessary to depress the travel pedal slightly before releasing park brake to build pressure to the travel hydraulics and prevent initial rearwards movement

Note 2: A warning buzzer will sound if the travel pedal is depressed and the park brake is applied.

Do not apply the park brake while the machine is in motion or the park brake may be damaged.

17. SUSPENSION LOCK SWITCH

Release the front axle suspension lock, using switch).

Position (1) : Front axle suspension travels freely.

Position (2) : Front axle suspension is in ‘auto’ mode i.e. when travel pedal is depressed, front axle suspension travels freely and when travel pedal is not depressed, front axle suspension is locked.

Position (3): Front axle is locked.

The lamp within the switch will illuminate when the front axle is locked, and will not be illuminated when the front axle is unlocked.

WARNING

Take care when using undercarriage attachments to stabilize the machine, and suspension lock simultaneously, as locked front axle may suddenly become free.

When machine is fitted with blade and outriggers it is necessary to Position outrigger switch (20) in its central (R.H. Attachment) Position in order to disengage suspension lock during dozer oper-ations.

18. ROADLIGHTS SWITCH

This switch is used to switch on the side lights and road lights.

(1) OFF

19. HAZARD SWITCH

This switch is used to switch on the hazard warning lights.

OFF: Hazard warning lights off.

ON: Hazard warning lights on.

(Warning light within switch will flash when switched on).

20. OUTRIGGER LEFT/RIGHT SWITCH (IF FITTED)

This switch enables operation of left, right or simultaneous outrig-ger(s)

21. UNDERCARRIAGE ATTACHMENT SWITCH

This switch enables operation of outriggers and/or dozer blade.

● Machines equipped with dozer blade only:

When this button is pressed (a) warning light a in position of switch (20) is activated.

● Machines equipped with outriggers or dozer/outrigger:

When this button is pressed switch (20) will illumate.

22. BOOM SWITCH

This switch enables operation of the boom when this button is pressed. The warning light in the panel assembly next to switch 20 is not illuminated.