6 minute read
Control, operation
Installation and removal of attachment parts
Caution!
The hydraulic lines are under pressure. Before connecting the hydraulic lines, depressurise them using the joystick (switch off diesel engine, turn ignition key to contact position, operate the joystick and press the buttons of the "Rotate grapple" function).
Move the safety lever up. Connect the hydraulic hoses 4 and 5 (for the supply of the grab cylinders) to the pipelines.
For grapples with hydraulic rotator, also connect the hydraulic hoses 6 and 7 to the pipelines for this auxiliary equipment.
3.5.3.2Attachment of connecting link
After the grapple has been removed, secure the connecting link 1. There are various ways to do this (depending on the machine equipment).
Fully retract the bucket tilt cylinder 6
Attach the holder 5 to the change lever 2
Insert the securing device 3 in the connecting link 1 and mount it to the holder 5. Insert securing plugs 4 on both sides.
3.5.3.3Changeover to grapple operation
Fig. 3-87 Valve block for tilt cylinder operation / grapple operation
Two hydraulic lines on the bucket stick are used for the operation of the tilt cylinder or the grapple.
The lines are switchable by means of a valve block:
– a - Tilt cylinder operation (for digging buckets)
– b - Grapple operation (for grapples, scrap shears, etc.)
Note
If the machine is equipped with a quick-change adapter and LIKUFIX, there is no need for this changeover. The valve block is therefore omitted.
Turn the two square head screws on the valve block until the marks are aligned in the direction of travel (position b, grapple operation).
Complete all working movements several times without load (opening and closing grapple, moving grapple to the right and left) in order to let any trapped air escape from the hydraulic circuits.
3.5.3.4Removing grapple
If necessary, remove the securing device 3 from the connecting link. Fully open the grabs and place the grapple in a vertical position on level ground.
Caution!
The hydraulic lines are under pressure.
Before disconnecting the hydraulic lines, depressurise them using the joystick (switch off diesel engine, turn ignition key to contact position, operate the joystick and press the buttons of the "Rotate grapple" function).
Move the safety lever up.
Disconnect the hydraulic hoses from the pipelines on the bucket stick. Immediately seal open lines to prevent dirt from entering the system. Prop up the grapple to ensure that it cannot topple over.
Unscrew the plate 3 and carefully drive out the bolt 2. To do this, you might have to start the diesel engine and lift the attachment slightly from the ground.
3.5.4Mechanical quick-change adapter (optional equipment)
The mechanical quick-change adapter allows for the fast and easy exchange of working tools.
3.5.4.1Safety information
–First familiarise yourself with the functions and operation of the quick-change adapter (without attached working tools).
–Before locking or releasing the quick-change adapter, tilt the safety lever upwards.
–Ensure that the working tool cannot be moved by a third party while you carry out this task.
–When attaching and removing working tools, ensure that no persons are located in the working area of the tool.
–During mounting and removing, move the working tool only at minimum speed, and only if absolutely necessary.
–Position the working tool as little above the ground as is necessary before starting the locking or release procedure, in order to avoid dangerous movements.
–If required, use a pedestal or working platform to reach the locking bolts and connections. Do not stand on the working tool.
–Check the locking screw every day to ensure that it is properly tightened. In addition to the above check, carry out a dummy run with the working tool: Tilt the working tool in and out (without load), lifting it only as far as this is necessary to check proper connection (e.g. pin in bolt eye).
–The lifting capacity of the quick-change adapter or the integrated load lift hook might be greater or smaller than that of the basic machine. Always observe the load capacity values of the machine.
3.5.4.3Releasing and locking
Fig. 3-89 Releasing and locking
Turn the locking screw anticlockwise and remove it (A). Insert the crank into the locking bolt and turn it anticlockwise until both locking bolts are inserted to the stop (B).
The quick-change adapter is released. Remove or attach the working tool.
Insert the crank into the locking bolt and turn it clockwise until both locking bolts are screwed out to the stop (C). The quick-change adapter is locked. Turn the locking screw clockwise (D). The quick-change adapter is secured.
3.5.4.4Attaching working tool
Fig. 3-90 Positioning attachment
The working tool must be placed on the ground in a stable position. Position the stick and the working tool. Fully retract the bucket tilt cylinder. Screw out locking screw. Release the quick-change adapter.
Position the quick-change adapter in such a way that the working tool can be taken up with the mounting hooks.
Lift the working tool a little from the ground and fully extend the bucket tilt cylinder until the bearing plate of the working tool touches the stop of the quick-change adapter.
The bores of the quick-change adapter and the working tool must be properly aligned.
Danger!
Prior to locking, there is no secured connection between the working tool and the quick-change adapter. The working tool might become dislodged and cause serious injury.
Approach the quick-change adapter with great care. Position the working tool as little above the ground as is necessary before starting the locking procedure, in order to avoid dangerous movements.
Lock the quick-change adapter. Screw in the locking screw.
Caution!
The hydraulic lines are under pressure.
Before connecting the hydraulic lines, depressurise them using the joystick (switch off diesel engine, turn ignition key to contact position, operate the joystick).
Connect all hydraulic or electrical lines (e.g. for the attachment of a grapple). The safe mounting of the working tool must be checked with a proper visual inspection.
3.5.4.5Dismantling working tool
The working tool must be in a stable position.
If the working tool (e.g. grapple) cannot be placed in an upright position, it must be removed in a horizontal position.
Caution!
The hydraulic lines are under pressure. Before disconnecting the hydraulic lines, depressurise them using the joystick (switch off diesel engine, turn ignition key to contact position, operate the joystick).
Disconnect all hydraulic or electrical lines to the working tool (e.g. for the removal of a grapple).
Fully extract the bucket tilt cylinder. Place the working tool in a slightly elevated position from the ground.
3-93 Aligning working tool for release
Danger!
Risk of injury!
After the working tool is released, it is fully disconnected from the machine. The working tool might become dislodged and cause serious injury.
Approach the quick-change adapter with great care.
Position the working tool as little above the ground as is necessary before starting the release procedure, in order to avoid dangerous movements.
Screw out locking screw. Release the quick-change adapter.
Fig. 3-94 Placing the working tool on the ground
Slowly retract the bucket tilt cylinder and lower the working tool to the ground.
3.5.5Hydraulic quick-change adapter (optional equipment)
The hydraulic quick-change adapter allows for the fast and efficient exchange of working tools without having to leave the operator's cab.
When operated in conjunction with the LIKUFIX quick-coupling system (optional equipment), the connecting lines are automatically connected and disconnected.
3.5.5.1Safety information
–First familiarise yourself with the functions and operation of the quick-change adapter (without attached working tools).
–When attaching and removing working tools, ensure that no persons are located in the working area of the tool.
–During mounting and removing, move the working tool only at minimum speed, and only if absolutely necessary.
–Position the working tool as little above the ground as is necessary before starting the locking or release procedure, in order to avoid dangerous movements.
–If the buzzer and the "quick-change adapter" icon are on, when you are not carrying out an intended locking or release procedure, immediately shut down the machine. If these indicating elements are not on when you are carrying out an intended locking or release procedure, immediately stop the procedure. The alarm signals can be triggered if a locking pin has inadvertently become dislodged, or if a mechanical, hydraulic or electrical fault occurs. Only resume operation after the defective part has been repaired or replaced.
–Check the working tool every day to ensure that it is properly secured. In addition to the above check, carry out a dummy run with the working tool: Tilt the working tool in and out (without load), lifting it only as far as this is necessary to check proper connection (e.g. pin in bolt eye).
–The lifting capacity of the quick-change adapter or the integrated load lift hook might be greater or smaller than that of the basic machine. Always observe the load capacity values of the machine.
–Switch on the magnet system (optional equipment) while attaching or removing the working tool.
3.5.5.2Overview
1 Locking bolt (extended)
3 Load lift hook
3.5.5.3Releasing and locking
2 Mounting hook for working tool
S47 Push button / quick-coupling system
R Push button / release (lock pin is retracted)*
L Push button / locking (lock pin is extended)*
For safety reasons, two control elements must be operated simultaneously to move the lock pin.
With one hand, press the button S47 and then press the button L or R with the other hand (two-hand control).
You can then release the button S47, and continue to operate the lock pin with the buttons L or R (holding function).
* Standard equipment; with other options of the "Rotate grapple" function (optional equipment), the operation can be carried out by means of the left or right joystick.
