Manitowoc Grove GMK 5250L Bedienungsanleitung

Maintenance manual

3 302 744 en

09.03.2018

3 302 744 en Maintenance manual

GMK5250L

Manitowoc Crane Group Germany GmbH

Industriegelände West

D-26389 Wilhelmshaven, Germany

Tel.: [+49] (0) 44 21 294-0

Fax: [+49] (0) 44 21 294-301

The passing on or duplication of this document as well as the utilisation and disclosure of its contents is prohibited unless

expressly permitted. Infringement will incur liability for compensation. All rights pertaining to registration of patent or utility

model are reserved. The original language of this document is German.

Important note

Any type of duplication or excerpt from this

document, even in electronic form,

is not subject to the revision service of

Manitowoc Crane Group Germany GmbH.

Additional pages for maintenance manual 3 302 809 en 1

GMK truck cranes

03.09.2018

1Additional maintenance work

on the rope attachment point

Depending on the equipment of the truck crane, a rope attachment point (1)

can be fitted between the lower sheaves on the main boom head.

•Check on both sides whether the rope attachment point (1) is equipped

with a grease nipple (2).

1.1 Main boom

1.1.1 Lubricating the rope attachment point

Grease, tools

– Grease gun from the tool set; supplied ladder.

Prerequisites – The main boom must be completely retracted and lowered into horizontal

position.

– The hook block must be unreeved.

– The engine must not be running and must be secured against unauthor-

ised use.

Lubrication

•Lubricate the rope attachment point (1) on

the grease nipple (2) with the grease gun

every three months (M3).

•Check whether the rope attachment point (1)

on the axle can be freely rotated.

If you discover any damage

•Have the defective rope attachment point re-

placed by Manitowoc Crane Care or an au-

thorised GROVE dealer.

M 3

Lubricating

grease

Designation

to DIN 51502

Specifications

Classification

GROVE part no.

Grease KP - 1K - 50 DIN 51825 03233369

03.09.2018

2 3 302 809 en Additional pages for maintenance manual

GMK truck cranes

Blank page

Additional pages for maintenance manual 3 302 836 en 1

GMK truck cranes

22.11.2018

1Protection of the main boom telescopic sections

1.1 Additional monthly maintenance work (M 1)

1.1.1 Checking the guard strips

The figure shows the main boom on a GMK5250L truck crane.

Other GMK models have a similar arrangement of guard strips (1) on the

upper surface of the telescopic sections.

The guard strips (1) are replaceable parts that must be checked regularly.

Check

•Check all guard strips (1) on all telescopic

sections for damage, wear and formation of

grooves by the hoist rope.

Turn if necessary

You can turn the guard strip, but only when

the bottom of the groove lies significantly

above (X) the telescopic section (2).

•(A) – Remove all screw connections (3).

•Remove the guard strip (1) and clean the

guard strip and the top surface of the

telescopic section.

•(B) – Turn the guard strip (1) by 90° and

fasten all screw connections (3).

M 1

SRisk of damage to the telescopic sections and hoist rope!

The hoist rope can form grooves in the guard strips when the crane is used

intensively. The hoist rope and telescopic section will be damaged when

the groove depth reaches the metal of the telescopic section.

You must therefore turn or replace the guard strips in time (1).

22.11.2018

2 3 302 836 en Additional pages for maintenance manual

GMK truck cranes

When turning three times is no longer sufficient

•Have the damaged guard strips replaced by Manitowoc Crane Care or an

authorised GROVE dealer or your qualified repair crew.

1.1.2 Conversion from plastic guard strips to steel rollers

GMK 6300L-1 The GMK 6300L-1 truck crane is delivered as standard with steel rollers

running in ball bearing races.

GMK 5250L and

GMK 6300L

The GMK 5250L and GMK 6300L truck cranes can be delivered with/

converted to steel rollers running in ball bearing races as additional

equipment.

•Contact Manitowoc Crane Care for information on the details and cost of a

conversion.

1.1.3 Checking the steel rollers

•Check all steel rollers (1) on all telescopic

sections for damage, wear and mobility of

the ball bearings (2).

•Have damaged, worn, stiff or extremely

steel rollers replaced by Manitowoc Crane

Care or an authorised GROVE dealer or your

repair crew.

M 1

09.03.2018

Maintenance manual 3 302 744 en

GMK5250L

Contents:

1General instructions

2Safety and environmental protection

3Cleaning

4Run-in regulations

5Maintenance overview

6Lubricants and consumables

7Maintenance work on the carrier

8Maintenance work on the superstructure

9Longer out of service periods

10 Torques

11 Spare parts required for maintenance

Appendix

This maintenance manual does not replace the operating manual.

Details of operation and standard safety instructions can be found

in the operating instructions.

09.03.2018

3 302 744 en Maintenance manual

GMK5250L

Blank page

09.03.2018

Maintenance manual 3 302 744 en

GMK5250L

1 General instructions

1.1 Instructions for using the maintenance manual. . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

1.2 Warnings and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

1.3 Maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2

1.4 Instructions regarding the electronic control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4

1.5 Safety instructions for welding work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4

1.6 Definition of direction references. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 5

1.7 Conversion table for US measuring units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6

09.03.2018

3 302 744 en Maintenance manual

GMK5250L

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