Grove Crane GMK 7450 Driving & Crane operation Operating Instruction Manual 3302526 - PDF DOWNLOAD

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Any type of duplication or excerpt from this document, also in electronic form, is not subject to the revision service of Manitowoc Crane Group Germany GmbH

© Copyright reserved by Manitowoc Crane Group Germany GmbH

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D-26389 Wilhelmshaven, Germany

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Additional pages

SLI override

These additional pages only apply to truck cranes with additional operating elements:

Additional operating elements:

1 Status display

2 Key-operated SLI override switch

3 Raise switch

These change the following:

–Cancelling automatic mode for rigging the counterweight and

–The procedure for the SLI override

Cancelling automatic mode

When the counterweight menu (2) is displayed, turn the key-operated switch (1) anticlockwise, regardless of whether symbol (A) or (B) is displayed.

SLI override – symbol (A)

Use the key-operated switch (3) to override the SLI as described in the operating manual. The operating elements (1), (2) and (4)have not been assigned functions.

If additional equipment is used, the status display (1) indicates this in the same way as the SLI display in the crane cab:

Green: 0 - 90%

Yellow: Approx. 90 - 100%

Red: Greater than 100%

SLI override – symbol (B)

The status display (1) is active.

The following operating elements can be used to override the SLI:

2 Key-operated SLI override switch

3 Key-operated rigging switch

4 Raise switch

Carry out the SLI override only as it is described in these additional pages.

Status display

The status display informs people in the danger area of the truck crane: –about the current degree of utilisation, –in case of an SLI shutdown or early warning, –when the SLI has been overridden.

The warning is made optically and, in part, acoustically.

1 Loudspeaker (warning signal)

2 Lamp, green

3 Lamp, yellow

4 Lamp, red

The lamps of the status display light up or blink depending on the SLI degree of utilisation and operation of the switches.

SLI shutdown

There are different types of SLI shutdowns:

–Shutdown due to overload, approx. 100% of the maximum permissible load is exceeded,

–Shutdown due to an error.

If the SLI has shut down the crane movements, then:

–depending on the version, the lamp (1) lights up, –a continuous buzzer tone sounds.

–the status display lights up red.

Now you can:

à Raising after SLI shutdown, S.6

à Overriding SLI or lifting limit switch for rigging work, S.7

à Overriding the SLI in an emergency, S.9

Raising after SLI shutdown

You can re-enable raising with the switch (1) in order to leave the shutdown range.

The speed is then reduced to 50%.

Prerequisite

–The engine for crane operation is running.

Raise main boom

• Press the button (1) up once.

–Raising is enabled. The SLI shows an information code; à S.11.

–The status display blinks green.

• Raise the main boom with the control lever until the degree of utilisation is less than 100%.

The crane movements are enabled again.

HThe raising of the main boom is shut down if the main boom angle is too great. Then all you can do is set the load down.

If the degree of utilisation is over 100%, you can cancel the function by: –pressing switch (1) up again or –switching off the ignition.

Overriding SLI or lifting limit switch for rigging work

For rigging work, you can: –Override the lifting limit switch or –Override the SLI and thus enable a degree of utilisation of up to 110%.

HFor both overrides the speed of the movements which increase the load moment is reduced to 15%.

The speed of the movements which increase the load moment is not reduced.

Prerequisite

–The engine for crane operation is running.

Lifting limit switch shutdown

• Turn the key-operated switch (1) to the left once.

Once the lifting limit switch has been activated, the crane movement is now stopped only once and then no longer monitored.

Overriding the SLI

• Turn the key-operated switch (1) to the right once.

Now a degree of utilisation of up to 110% is enabled.

After overriding

–The status display lights up red.

–The SLI shows an information code; à S.11.

If you do not trigger a control lever movement within 10 seconds, you must press the key-operated switch again.

Cancelling the override

The override is cancelled when you: –press the key-operated switch again or –do not activate the control lever for 10 seconds or –switch off the ignition.

SRisk of accidents due to accidental override!

The key must not remain in the key-operated switch during the crane operation!

In this way, you avoid overriding the SLI unintentionally.

Overriding the SLI in an emergency

GRisk of accidents due to overridden or faulty SLI

It is not permitted to work with an overridden or faulty SLI!

Set down the load immediately and stop operating the crane if the SLI is faulty!

You may only override the SLI if it becomes absolutely necessary in the event of an emergency. This is to put the truck crane into a safe condition in the event of a malfunction. In this case, do not perform any movements that would increase the load moment.

If the SLI has shut down all crane movements, you can cancel the shutdown with the keyoperated switch (1).

Once the shutdown is cancelled, the crane operation is no longer monitored and the switched off crane movements are enabled again.

The power unit speeds are reduced to 15%.

Prerequisite

–The engine for crane operation is running.

Cancelling a shutdown

• Turn the key-operated switch (1) to the left or right once.

–Now all crane movements are enabled for 30 minutes. The crane movements are no longer monitored by the SLI.

–The SLI shows an information code; à S.11.

The status display blinks red

At a degree of utilisation over 110% the warning signal sounds; à S.4.

Cancelling the override

The override is cancelled when you: –switch off the ignition or –press the key-operated switch again.

The override is automatically cancelled 30 minutes after the key-operated switch has been pressed.

SRisk of accidents due to accidental override!

The key must not remain in the key-operated switch during the crane operation!

In this way, you avoid overriding the SLI unintentionally.

Table – Error codes

The following table contains error codes, their causes and possible remedies.

Representation of error codes; à Operating instructions

Error codeCauseRemedy

8044

Key-operated rigging switch pressed, no override effective

8054 Raise switch pressed, no override effective

8064

Key-operated SLI override switch pressed, no override effective

8045Information code: Key-operated rigging switch pressed, override effective

8055Information code: Raise switch pressed, override effective

8065Information code: Key-operated SLI override switch pressed, override effective

–Start the engine;

–Reduce degree of utilisation to less than 110%

–Move the control lever within 10seconds after operation

–Start the engine; –Press switch again

–Start the engine; –Press switch again

No measures required.

• Thank you very much for reading the preview of the manual.

• You can download the complete manual from: www.heydownloads.com by clicking the link below

• Please note: If there is no response to CLICKING the link, please download this PDF first and then click on it.