Control and operation

Working with the machine

Caution!

The brake only applies when the uppercarriage is near standstill and if no swing motion is actuated with the joystick.

To stop the uppercarriage when working on a slope: Tilt down the rocker switch S57

Use the joystick to reduce the uppercarriage speed. Move the joystick back to "0" position only after the brake operates.

Emergency stop of the uppercarriage swing motion

The swing brake can be applied independently of the uppercarriage RPM by pushing "Swing brake" button into position "applied".

Caution!

Perform this braking with the "Swing brake" button only in case of emergency as it causes fast abrasion of the brake discs.

Check the mechanical swing gear brake

Uppercarriage must be stationary. Press "Swing brake" button. Swing gear brake is engaged. LED in switch comes on.

Push the left joystick to the right and then to the left to stop. Uppercarriage must not turn. Swing gear brake function is operational.

3.4.2Working position

Fig. 3-72 Working position – machine

Work with the machine is generally to be carried out over the idler-wheel. Drive backwards when you are working lengthwise with the backhoe bucket.

3.4.3Joystick functions when setting up the machine Operating the stick cylinder

The stick cylinder is operated using the left joystick 4

3-73 Operating the stick cylinder

Move the joystick rearward a Stick will be drawn in.

Move the joystick forward b Stick will be extended.

Operating the boom cylinder

The boom cylinder is operated using the right joystick 3

Move the joystick rearward h Attachment will be raised. Move the joystick forward g Attachment will be lowered.

Boom down with pressure

If it is necessary to lower the boom with pressure:

Move the joystick forward g The attachment will be lowered pressureless (see section above).

Push the button S6R right on top of the right handle at the same time you actuate the joystick. The boom is lowered with pressure.

Float position of boom cylinder (with shovel attachment only)

Move the right joystick 3 forward g. Now the bucket can be used for grabbing work while moving the joystick 4 forward to extend the crowd cylinders. The attachment can then move freely up or down depending on grade and the bucket will automatically follow the ground contour.

Operating the bucket

The bucket is operated using the right joystick 3

Move the joystick to the left e Bucket will be tilted inwards. Move the joystick to the right f Bucket will be tilted outwards.