Control, operation

Installation and removal of attachment parts

3.5.2Safe removal and installation of attachment pins

lling device to push out the pins on the attachment.

held by another person. of the pin and hit the screw only.

first to the stop, then install the castle nut by hand until contact and tighten it only to the point where the cotter pin can be installed.

3.5.3Installation and removal of digging tool

Fig. 3-68 Installation and removal of digging tools

The following is a description of the installation and removal of digging tools. Digging tools include backhoe bucket, ditch cleaning buckets or ripper.

3.5.3.1Removing the digging tool

Position the attachment in such a way that the entire bottom part of the digging tool is laying on the ground.

Unscrew the locking plate 5 and remove the locking plate 6 and knock out pin 3 and pin 4

If necessary, raise the attachment slightly when knocking out pin 4 to relieve it.

3.5.3.2Installing a new digging tool

Position the digging tool to be installed in such a way that its entire flat bottom is laying on the ground.

Start the engine and move the attachment until the bucket stick bearing and the bearing points 1 of the digging tool are aligned.

Guide in pin 4 and secure it with plate 6

Extend the bucket cylinder slowly until the bore hole in the connecting link 7 is located precisely between the bearing points 2

Guide in pin 3 and secure it with plate 5

Grease all lube points on pins 3 and 4 until clean grease emerges on the corresponding bearing points.

3.5.3.3Bucket cylinder operation

Two hydraulic lines on the stick are used either for bucket cylinder operation or grapple operation.

The lines are switchable via a valve block 15: a - Bucket cylinder operation (for digging tools) b - Grapple operation (for grapple, scrap cutter etc.)

Turn the both square head bolts on valve block 15 in such a way that the markings are positioned transverse to the travel direction (position a, bucket cylinder operation).

Note!

If the machine is equipped with a hydraulic quick change adapter and LIKUFIX, it is not necessary to switch between bucket cylinder operation and grapple operation. There is no valve block 15.

Installation and removal of attachment parts

3.5.4Installation and removal of grapple on stick

Before installing a clamshell bucket or multiple tine grab, make sure that the required hydraulic lines for grapple operation are installed on the stick. The installation and removal of the grapple must be carried out by two people.

Danger! Danger of injury.

Ensure that the machine operator follows the hand signal given by the guide when moving the attachment.

3.5.4.1Installing the grapple

If necessary, remove the digging tool.

Retract the bucket cylinder to the stop. Install screws 8 between connecting link 7 and the change over lever 9.

Position the grapple with fully opened shells.

Move the attachment to bring the lower mount of the stick between the bearing points of the grapple suspension 1.

Guide in pin 4 and secure it with plate 6

Connect hydraulic hose 11 and hydraulic hose 12 for the shell cylinder supply to the pipes for the bucket cylinder.

For a grapple with a hydraulic rotating grapple drive, also connect hoses 13 and 14 to the pipes for this auxiliary device.

3.5.4.2Grapple operation

Two hydraulic lines on the stick are used either for bucket cylinder operation or grapple operation.

The lines are switchable via a valve block 15: a - Bucket cylinder operation (for digging tools) b - Grapple operation (for grapple, scrap cutter etc.)

Turn the both square head bolts on valve block 15 in such a way that the markings are positioned in travel direction (position b, grapple operation).

Note

If the machine is equipped with a hydraulic quick change adapter and LIKUFIX, it is not necessary to switch between bucket cylinder operation and grapple operation. There is no valve block 15

Carry out all work movements several times without a load (open and close the shells or turn the grapple to the left and to the right) to remove any air in the hydraulic circuits.

3.5.4.3Removing the grapple

Set down the grapple on level ground with fully opened shells. Shut down the engine and, with the ignition key in the contact position, move the right joystick briefly to the left and then to the right to relieve the pressure in the hydraulic circuits.

To relieve the grapple rotator press the two push buttons in the left (or left and