Operation

Re-installing attachments

Fitting attachments onto the quickhitch facility

Re-installing attachments is described below for the standard bucket. If you are fitting or removing attachments with their own hydraulic functions, you must follow the information provided in the Operator’s Manual of the attachment.

WARNING!

The attachment must always be locked onto the quickhitch facility –Accident risk.

☞ Before working, be sure that the attachment is locked onto the quickhitch by using the lock cylinder. Be sure that you can see the lock pins on both sides of the mounting holes on the attachment.

Re-install as follows:

☞ Drive the machine up to the attachment.

☞ Lower loader unit E by pressing control lever 10 forward C

☞ Tilt the quickhitch facility forward by pushing control lever 10 to the right B

☞ Adjust the height of pin shanks G of the quickhitch facility so that they are under catch hooks F of the attachment.

☞ Drive the machine forward until pin shanks G of the quickhitch facility are directly beneath the catch hooks of attachment F

☞ Raise loader unit E until pin shanks G engage in pin shanks F of the attachment. To do this: Pull control lever 10 rearward D

☞ Fully tilt in the quickhitch facility. To do this: Push control lever 10 to the left A.

Locking: attachments without hydraulic function

Secure the attachment with lock pins H of the quickhitch facility. To do this:

☞ Press tip switch 87/73 on the control lever.

➥ Lock pin H engages in the mounting holes of the attachment.

➥ Make sure the attachment is safely locked with lock pins H

☞ Lock the 3rd control circuit with the rocker switch (fig. 24/54):

➥ –see Locking 3rd control circuit on page78.

WARNING!

You must be able to see lock pins H on the left and right of the mounting holes on the attachment. The attachment is not safely locked unless you can see the lock pins.

Locking: attachments with hydraulic function

☞ Turn off the engine.

➥ Do not turn off the ignition.

☞ Apply the parking brake.

☞ Unlock the 3rd control circuit with the rocker switch (fig. 25/54)

➥ –see Locking 3rd control circuit on page78.

☞ Depressurize the 3rd control circuit

➥ –see Depressurizing the quick couplers on the loader unit on page79.

☞ Attach the hydraulic and electrical connections (if used) for the attachment by following its Operator’s Manual.

Removinganattachmentfromthe quickhitchfacility

WARNING!

The attachment must be placed on the ground so that it will not fall over when removed –

Risk of personal injury.

☞ Position the attachment so that after unlocking it will not tip over.

Take the attachment off the quickhitch facility as follows:

☞ Be sure that the attachment is empty and up.

☞ Tilt in the quickhitch facility by pushing control lever 10 to the left A.

☞ Lower the loader unit until the attachment is about 2–4in. (5–10cm) above the ground by pushing control lever 10 forward C.

☞ Unlock the 3rd control circuit by using the rocker switch (fig. 24/54):

–see Locking 3rd control circuit on page78.

For attachments with hydraulic function

☞ Turn off the engine.

➥ Do not turn off the ignition.

☞ Apply the parking brake.

☞ Unlock the 3rd control circuit with the rocker switch (fig. 24/54)

–see Locking 3rd control circuit on page78.

☞ Depressurize the quick couplers

–see Depressurizing the quick couplers on the loader unit on page79.

☞ Change over the quick couplers on the lock cylinder:

• Connect flexible line A onto the right plug D of the quickhitch facility.

• Connect flexible line B onto the left plug C of the quickhitch facility.

• Remove electrical connections (if necessary).

☞ Start the engine.

☞ Open the lock on the quickhitch facility. To do this:

➥ Press tip switch 72 on control lever 10

☞ Slightly tilt the quickhitch facility forward. To do this: Push control lever 10 to the right B.

☞ Lower the loader unit. To do this:

➥ Push control lever 10 forward C

As soon as the pin shanks of quickhitch facility F are beneath the catch hooks of attachment E:

☞ Release the parking brake.

☞ Reverse the machine away from the attachment.

Working with the standard bucket

This section describes work operations for the machine equipped with the standard bucket.

The standard bucket is mainly used for digging, loosening, lifting, transporting and loading loose or solid materials.

Checking the tilt position of the bucket

IMPORTANT!

Angle of mark A = angle of blade B .

Checking the transport position of the bucket

IMPORTANT!

The bucket is in the transport position if:

•Bucket is tilted back completely A

•Marks on the loader unit and the machine frame are lined up C

The distance of the bucket (with standard tires) to the ground B is about 8” (20 cm).

Transporting with a full bucket

WARNING!

Transporting full buckets in the raised position is an –Accident risk.

Pay attention to this when cornering or driving on slopes. The lower the bucket and center of gravity, the less risk there is of tipping over.

To avoid accidents:

☞ Tilt the bucket fully back.

☞ Raise the bucket to the transport position – see fig. 93

☞ Tilt the bucket all the way back A

☞ Raise the bucket to the transport position: ➥ B and C

Loading loose material

☞ Align the blade flush with the ground A –see Checking the tilt position of the bucket on page83.

☞ Lower the bucket to the ground B. To do this: Push control lever 10 forward C.

☞ Drive forward into the material A.

When the engine speeds decreases due to too much material:

☞ Slightly raise the bucket B . To do this: Pull control lever 10 rearward D.

Loading if the material is hard to penetrate

☞ Proceed as for loading loose material.

☞ Tilt the bucket in and out slightly by moving control lever 10 to the left and right A and B.

Ending loading

☞ Tilt back the bucket C by pushing control lever 10 to the left A.

☞ Reduce engine speed.

☞ Reverse out of the material A.

☞ Raise the bucket to the transport position B .

Removing material/digging in soft soil

WARNING!

If foundations or walls are undermined – risk of collapse.

Accident risk.

☞ Never undermine foundations or walls.

☞ Place the bucket horizontally on the ground B by pushing control lever 10 forward C.

☞ Set the digging angle α 1 by pushing control lever 10 to the right B.

☞ Drive the machine forward 1. After the bucket has penetrated the soil:

☞ Set the digging angle α (slightly flatter) 2 by pushing control lever 10 to the left A , so that the:

• Layer being removed is as even as possible.

• Wheel spin is reduced.

☞ Proceed as for loading loose material.

Removing material/digging in hard soil

☞ Lower the bucket horizontally to the ground 1 by pushing control lever 10 forward C.

☞ Set the digging angle α (flatter) 2 by pushing control lever 10 to the left A.

☞ Drive the machine forward 3

☞ Press the bucket rearward slightly by pushing control lever 10 forward C.

After the bucket has penetrated the soil:

☞ Set the digging angle α (slightly flatter) 1 by pushing control lever 10 to the left A , so that the:

• Layer being removed is as even as possible.

• Wheel spin is reduced.

☞ Push control lever 10 to the left A, or move it alternately to the left and right A and B to loosen the material.

☞ Proceed as for loading material hard to penetrate.

Loading heaped material (non-compacted material)

WARNING!

Digging under heaped material can cause it to collapse –Accident risk.

☞ Never undermine heaped material.

☞ Set the blade parallel to the ground by pushing control lever 10 to the left or right A and B.

☞ Lower the bucket horizontally to the ground by pushing control lever 10 forward C.

☞ Drive forward.

After penetrating the heaped material:

☞ Smoothly raise the boom.

☞ Keep the bucket level.

When the boom cannot be raised further:

☞ Tilt in the bucket 1.

☞ Raise the boom 2.

☞ Reverse out of the material 3.

☞ Lower the attachment into the transport position.

Loading heaped material (compacted material)

☞ Proceed as for non-compacted material.

☞ When raising the loader unit through the heaped material: tilt the bucket slightly in and out 1

☞ To do this: move control lever 10 alternately to the left and right (A and B)

➥ Material is loosened.

Grading

After having finished removing/loading the material:

☞ Lower the bucket horizontally to the ground 1

☞ Reverse across the surface to be graded 2

Digging tips

When completing digging work, we recommend the following:

• Exit the pit, as level as possible, from outside the digging line.

• Dig by removing adjacent strips.

• Drive in forward when transporting a full bucket out of the digging area.

• Drive in reverse when transporting a full bucket down a steep slope.

Loading trucks

When loading trucks, we recommend the following:

• The truck and loader working direction should form an angle of 45°.

• Only raise a full bucket to the dump height when you are driving in a straight line towards the truck.

• Dump with the wind behind you to keep the dust away from your eyes, air filters, and fans.

Freeing the wheel loader

If your machine gets stuck in the soft ground:

☞ Dump out the bucket until the blade is vertical above the ground.

☞ Completely lower the boom.

☞ Gradually tilt back the bucket

➥ The machine is pushed rearward.

☞ Reverse slowly.

☞ Repeat this procedure until the wheels reach firm ground.

☞ Reverse the machine away.