Control, operation

Slowly press travel pedal 7 down.

Travelling reverse

Press rocker switch S263 up b The indicator light H168 lights up. Slowly press travel pedal 7 down.

3.3.4.6Travelling downhill

The machine is equipped with an automatic brake valve, which prevents the hydraulic drive train from overspeeding.

Danger!

Before travelling downhill, turn the sensor controlled low idle automatic S20 off.

Travel downhill with maximum Diesel engine RPM. Regulate the speed using the travelling pedal.

3.3.4.7Travelling on downhill grades of more than 10%

Caution!

Applying the operating brake does not ensure safe parking on a downhill slope (loss of pressure due to leakage is possible).

Before leaving the cab and / or shutting down the machine, apply the parking brake S16

Raise the safety lever.

Always use the 1st gear to travel downhill slopes of more than 10%.

Before travelling downhill, stop and engage the 1st gear.

3.3.5Road driving

Note!

Driving on public roads is subject to national regulations. Please inform yourself about local requirements before starting a journey. Observe all regulations and conditions.

3.3.6Towing the machine

Danger!

Risk of injury!

Use a suitably sized towbar to tow the machine. Do not use a rope.

Towing the machine is problematic and is always carried out at the owner's risk.

The machine should only be towed in exceptional circumstances, e.g. to move the machine away from a dangerous place for repair.

Damages or accidents, which occur when the machine is towed, are not covered by the manufacturer's warranty under any circumstances.

The towing rod must be attached to the tow coupling provided on the undercarriage.

The following values should not not be exceeded when towing:

–Towing speed: maximum 5km/h

–Towing distance: maximum 10km

Towing preparations depend on the function of the parking brake, diesel engine, controls and hydraulic system.

The parking brake must be released when towing.

Towing with the diesel engine running: Press switch S16 down.

Indicator light in the switch goes out. Parking brake is released.

If the parking brake cannot be released, solenoid valve Y6 might have failed. In this case, screw in the valve by hand (emergency operation).

Screw in the T-handle on solenoid valve Y6.

The machine can be driven using the travelling pedal and travelling direction switch, or towed by a tow truck.

The machine can be slowed down with the operating brake (foot pedal) and steered with the assistance of the servo steering.

Towing when there are electrical faults:

The parking brake cannot be opened using the solenoid valve if there is no on-board voltage or the electronics have failed.

In this case, the transmission must be mechanically uncoupled for towing (see Fig. 3-39).

Towing when the diesel engine is not running:

The parking brake cannot be released when the diesel engine is not running. In this case, the transmission must be mechanically uncoupled for towing (see Fig. 3-39).

3.3.7Uncoupling the transmission

Danger!

The parking brake no longer functions when the transmission is uncoupled. The machine could roll away if another brake (operating brake) is disabled. When the diesel engine is not running and the transmission is uncoupled, all of the brakes (operating brake, parking brake) on the machine are disabled. The machine could roll away and steering is only possible by applying increased effort.

Make sure that the machine is properly secured to prevent it from rolling away (towing rod and wedges), before uncoupling the transmission.

The machine may only be towed out of the immediate danger area!

A Travel direction 1B Lines

1 Lubrication nipple 2 Bleeder

3 Pressure relief valve

It is possible to release the parking brake and uncouple the transmission by injecting grease into lubrication nipple 1 via line 1B

Use a grease gun to inject grease into lubrication nipple 1 until it exits from pressure relief valve 3

The transmission is hydraulically uncoupled, the parking brake is released. The machine can be towed out of the danger area.

If the diesel engine is running, the machine can be slowed down using the operating brake (foot pedal) and steered with the assistance of the servo steering. If the diesel engine is not running: all brakes on the machine are disabled.

Caution!

The transmission may be damaged if it is used in the uncoupled state. Do not select a gear and do not use the travelling pedal when the transmission has been mechanically uncoupled.

Close the clutch:

Open the emergency controls for bleeder 2

Select the on-road gear. Close bleeder 2 again. The transmission has been coupled up again.

3.3.8Oscillating axle lock

3-40 Oscillating axle lock

Locking the oscillating axle

Turn switch S75 to position 1

The indicator light H311 lights up. The oscillating axle is permanently locked. The stability of the machine is increased.

Turn on the oscillating axle automatic

Danger!

When the automatic oscillating axle lock automatic is turned on (switch S75 in position A), releasing the operating brake will release the oscillating axle lock. This results in a reduction of the stability of the machine and can cause the machine to tip over when a load is lifted and the uppercarriage is turned.

For safety reasons, the oscillating axle cannot be unlocked when the system is overloaded.

If the machine has to be moved with a raised load (e.g. filled bucket, load suspended on safety hook), you must turn off the automatic oscillating axle lock and permanently lock the oscillating axle (switch S75 in position 1) before taking on the load.

Turn switch S75 to position A.

The indicator light H176 lights up.

When the operating brake is applied, th e oscillating axle is automatically locked in the current position and is automatically unlocked again when the operating brake is released.

Note!

When working with the excavator, we recommend to lock the oscillating axle. If possible, unlock the oscillating axle before travelling (without a load): Turn switch S75 to position 0

3.3.9Support

Fig. 3-41 Support variants

The machine can be equipped with different types of support:

– 1Shield support

– 2 Shield support, front and rear

– 3 Claw support

– 4 Shield and claw support

– 5Claw support, front and rear

It is possible to combine the support variants on the front and / or at the rear, depending on kit. The claw support can be expanded to include the individual control function (optional extra).

3.3.9.1Operating the shield / claw support

Fig. 3-42 Operating the shield support

The support is operated using control lever 5.

To extend the claws or the shield, move the control lever 5 forwards a

To retract the claws or the shield, move the control lever 5 backwards a

If the machine is equipped with an additional shield besides the shield/claw support, then it must be separately activated with switch S335

If necessary, press switch S355 down. Shield support is activated. The indicator light in the switch lights up.

To extend the shield, move the control lever 5 forwards a

To retract the shield, move control lever 5 backwards b.

3.3.9.2Individual claw control (optional extra)

Fig. 3-43 Individual claw control

The selection of the individual claws to be used is made via switches S204 - S207 in the control panel A.

– S204 = claw, left front

– S205 = claw, right front

– S206 = Claw, rear left

– S207 = Claw, rear right

Each claw can be controlled individually or together with the other claws. Press the relevant switch S204 – S207

The indicator light in the corresponding switch lights up.

To extend the claw(s), move the control lever 5 forwards a. To retract the claw(s), move control lever 5 backwards b

3.4Working with the machine

3.4.1Working with the machine safely

–Before starting to work, familiarize yourself with the peculiarities of the job site, the special regulations and warning signals. Part of the surrounding area includes, for example, the obstacles in the working or movement area, the load carrying capacity of the ground and required safeguards for the job site to shield it from public highway traffic.

–Always keep an adequate safety distance to overhangs, edges, embankments and an unsecured substrate.

–Be particularly cautious in conditions of reduced visibility and changing ground conditions.

–Familiarize yourself with the location of power lines on the job site and work particularly careful in their vicinity. If necessary, inform the responsible authorities.

–Maintain a safe distance from electrical overhead lines. Do not approach the line with the equipment when working near electrical overhead lines. Danger of fatal injury! Inform yourself about required safety distances.

–In case of a flashover, proceed as follows: •do not move the machine or its attachment, •do not leave the operator’s platform,