IMO WD-L, SP-M, SP-H, WD-H, SP-L Installation And Operating Manual

Installation and Operating Manual

Slew Drives

WD-L, WD-H, SP-L, SP-I, SP-M, SP-H

IO SD 1.00

Read the operating manual prior to starting all work!



© IMO Antriebseinheit GmbH & Co. KG

Gewerbepark 16

91350 Gremsdorf, Germany

Tel.: [phone]
Fax: [phone]

email: [e-mail]
Internet: www.goimo.com

Customer Service:
Tel.: [phone]
email: [e-mail]

This operating manual provides important instructions for working
with the component. The specified instructions must be precisely
followed, to protect yourself and others.
Inform yourself of the locally applicable accident prevention
regulations and the general safety regulations.
The operating manual must be carefully read prior to starting any
work! It is a component of the product and must be kept in the
immediate vicinity of the component. It must be accessible to
personnel at all times.
If this component is provided to a third party ensure that the
operating manual is provided with the component.
The illustrations in this manual are provided for the purpose of
better understanding. They are not necessarily true to scale and
can deviate from the actual design of the component.

2

Slew Drives

Table of contents

1 Structure and function..................................................5

1.1 Brief description ........................................................ 5

1.2 Overview ..................................................................5

1.2.1

WD-L series (light series)............................. 5

1.2.2

WD-H series (heavy series).......................... 6

1.2.3

SP series.....................................................7

1.3 Intended use............................................................. 8

2 General .........................................................................9

2.1 Explanation of symbols .............................................. 9

2.2 Limitation of liability .................................................. 9

2.3 Copyright................................................................ 10

2.4 Original IMO parts ................................................... 10

2.5 Customer Service .................................................... 11

3 Safety..........................................................................12

3.1 Safety devices ......................................................... 12

3.2 Special dangers ....................................................... 12

3.3 Responsibility of the customer.................................. 13

3.4 Personnel requirements ........................................... 14

3.5 Personal protective equipment ................................. 14

4 Transport, packaging, and storage.............................16

4.1 Safety instructions for transport ............................... 16

4.2 Transport................................................................ 16

4.3 Transport inspection/incoming goods inspection........ 18

4.4 Packaging ............................................................... 19

4.5 Symbols on the packaging ....................................... 19

4.6 Storage................................................................... 20

5 Installation and commissioning .................................21

5.1 Safety..................................................................... 21

5.2 Preparation ............................................................. 22

5.2.1

Lubricating prior to commissioning ............. 22

5.2.2

Cleaning the slew drive and mounting

structure................................................... 22

5.2.3

Determination of flatness deviation, and
perpendicularity deviation and deformation

of the mounting structure .......................... 23

5.2.4

Selecting the mounting elements ............... 26

5.2.5

Tightening bolts with a torque wrench........ 27

5.2.6

Tightening bolts with a hydraulic bolt-

tensioning cylinder .................................... 28

5.3 Installing the slew drive ........................................... 30

5.3.1

Hardness gap............................................ 30

5.3.2

Positioning the slew drive .......................... 30

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Slew Drives

Table of contents

5.3.3

Bolting the slew drive ................................31

5.3.4

Determining the tilting clearance ................33

5.3.5

Determining the circumferential backlash ....34

5.4 Function test ...........................................................35

6 Maintenance ...............................................................36

6.1 Safety .....................................................................36

6.2 Cleaning..................................................................37

6.3 Maintenance schedule ..............................................37

6.4 Maintenance tasks ...................................................39

6.4.1

Inspecting the mounting bolts ....................39

6.4.2

Checking the tilting clearance .....................39

6.4.3

Checking the circumferential backlash.........40

6.4.4

Lubricating the slew drive ..........................41

6.4.5

Inspecting the seals ...................................42

6.5 Measures after successful maintenance.....................42

7 Dismantling.................................................................43

7.1 Safety .....................................................................43

7.2 Dismantling .............................................................44

7.3 Disposal ..................................................................44

8 Technical data – Type plate ........................................45

4

Slew Drives

Structure and function

1 Structure and function

1.1 Brief description

Slew drives are used for concurrent transmission of axial and radial
forces, as well as transmission of tilting moments. Slew drives
consist of a ball or roller slewing ring, hydraulic or electric drives,
and a completely enclosing housing. Force is transmitted to the
mounting structure through bolts. For this purpose through holes

1.2 Overview

1.2.1 WD-L series (light series)

or threads are provided in the inner and outer ring.

Series WD slew drives are designed with worm gear. Series SP
slew drives are designed with spur gear and straight toothing.

The lighter series is designated as the WD-L series. The drive
motor (hydraulic/electric) is optional. Additional optional
components are potentiometers, permanent brake or front-end
brake.

Fig. 1: Slew drive WD-L

1 Connection for options: Potentiometer,

permanent brake or front-end brake
2 Worm shaft
3 Lubricating nipple
4 Ball slewing ring

5 Option: Drive motor
6 Bolted unions for the mounting structure
7 Housing
8 Lubricating nipple

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Slew Drives

Structure and function

1.2.2 WD-H series (heavy series)

The heavy series is designated as the WD-H series. The drive
motors (hydraulic/electric) are optional. Additional optional
components are potentiometers, permanent brake or front-end
brake.

Fig. 2: Slew drive WD-H

1 Housing
2 Bolted unions for the mounting structure
3 Option: Drive motors

4 Lubricating nipple
5 Worm shaft
6 Roller slewing ring
7 Connection possibility for add-on parts

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Slew Drives

Structure and function

1.2.3 SP series

SP-L, light version

The SP slew drive is powered by a pinion gear unit. The drive
motor (hydraulic/electric) is optional.

Fig. 3: Slew drive SP-L, light version

1 Bolted unions for the mounting structure
2 Housing
3 Drive motors

Additional versions

Fig. 4: Additional SP slew drives

1 SP-I, reinforced version
2 SP-M, medium version
3 SP-H, heavy version

4 Lubricating nipple for tooth mesh
5 Bolted unions for the mounting structure
6 Lubricating nipple for raceway

7

Slew Drives

Structure and function

1.3 Intended use

WARNING

WARNING

WARNINGWARNING

The component is not designed for use in potentially
explosive atmospheres. Misuse of the component may
cause dangerous situations.

The component has been designed and manufactured exclusively
for the use according to this Installation and Operating Manual.

The slew drive is used

 as a drive for generating a rotary movement as well as the

absorption of radial, axial forces and tilting moments. For
example it is used as steering gear for crane undercarriages,
manlift platforms, construction machines, mining and
tunneling.

Modification, retooling, or changing the construction or individual
parts of the equipment with the objective of changing the area of
application or usability of the component is not permitted, as this is
not considered intended use.

Claims of any type due to damage arising from improper use are
excluded.

The customer is solely liable for all damage in the case of improper
use.

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Slew Drives

General

2 General

2.1 Explanation of symbols

Warnings

Warnings in this operating manual are indicated by a warning
symbol () and/or signal words. The scope of the hazard is
described by signal words.
The warnings must be strictly heeded; you must act prudently to
prevent accidents, personal injury, and material damage, as well
as life-threatening danger.

Warning symbol / signal word Explanation
DANGER

or

DANGER!

DANGER!

DANGER!DANGER!

WARNING

or

WARNING!

WARNING!

WARNING!WARNING!

CAUTION

or

CAUTION!

CAUTION!

CAUTION!CAUTION!

IMPORTANT

or

IMPORTANT!

IMPORTANT!

IMPORTANT!IMPORTANT!

Indicates an imminent dangerous situation that can
result in death or serious injury if it is not avoided.

Indicates a possible dangerous situation that can
result in death or serious injury if it is not avoided.

Indicates a possible dangerous situation that can
result in minor injury if it is not avoided.

Indicates a possible dangerous situation that can
result in material damage if it is not avoided.

Tips and recommendations Explanation

Indicates useful tips and recommendations as well
as information for efficient and trouble-free
operation.

2.2 Limitation of liability

All information and instructions in this operating manual have been
provided under due consideration of applicable guidelines, the
current state of technology, as well as our many years of
experience.

The manufacturer assumes no liability for damages due to:

 Failure to follow the instructions in this manual

 Non-intended use

 Deployment of untrained personnel

 Unauthorized conversions

 Technical changes

 Use of non-approved spare parts

The actual scope of delivery can vary from the explanations and
graphic representations provided in this manual in the case of
special versions, if supplemental order options are desired, or on
the basis of the latest technical changes.

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Slew Drives

General

2.3 Copyright

In all other respects the agreed obligations in the delivery contract,
the general terms and conditions, as well as delivery conditions of
the manufacturer, and the statutory regulations valid at the time
the contract was concluded, apply.

We reserve the right to make changes in the interest of
enhancements and improvement of the performance
characteristics.

© Copyright 2010, IMO Antriebseinheit GmbH & Co. KG

The information contained in this operating manual and/or in all
parts, sub-sections, or sections of this manual is the intellectual
property of IMO Antriebseinheit GmbH & Co. KG, and is subject to
German and international copyright legislation and other laws that
protect intellectual property.

The information contained in this manual is provided as in aid in
operating, maintaining, and eliminating faults of the units
described here.

2.4 Original IMO parts

WARN

WARNIIIING

WARNWARN

NG

NGNG

Duplication, reproduction, translation, microfilming, storing in
electronic or magnetic form, imitation, or forwarding of these
materials and/or the information contained without the previous
written consent of IMO Antriebseinheit GmbH & Co. KG, is strictly
prohibited.

All rights and legal remedies remain expressly reserved.

Actions to the contrary will be prosecuted.

IMO Antriebseinheit GmbH & Co. KG assumes no liability for
improper use of the information contained here by persons or legal
entities, regardless of the location.

IMO Antriebseinheit GmbH & Co. KG reserves the right at any time
and regardless of reason, to change or modify the information
contained here, as well change and modify the system itself, with
or without prior notice.

Only use original IMO parts! Use of non-authorized, wrong,
or defective spare parts may cause damage, and failures,
or may impair the safety of the device and thus cause
severe or fatal injuries.

Purchase original IMO parts from authorized dealers or direct from
the manufacturer ( page 2).

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Slew Drives

General

2.5 Customer Service

Our customer service is available for technical information
( page 2).

Our employees are always interested in new information and
experiences associated with the application, and which could prove
valuable in improving our products.

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Slew Drives

Safety

3 Safety

3.1 Safety devices

Integration in an emergency-stop
concept is required

3.2 Special dangers

This section provides an overview of all the important safety
aspects for optimal protection of personnel, as well as for safe and
trouble-free operation.

Significant hazards can occur if the handling instructions and
safety instructions in this manual are not complied with.

The component is designed for utilization within a system. It does
not have its own controller and does not have an autonomous
emergency-stop function.
Before the component is placed in service, emergency-stop devices
must be installed on the device and integrated in the safety chain
of the plant control system.

The emergency-stop devices must be connected in such a manner
that dangerous situations for persons and property are excluded in
the event of power supply interruption, or activation of the power
supply after an interruption.
The emergency-stop devices must always be freely accessible.

WARNI

WARNING

WARNIWARNI

Electrical current

Hydraulic system

VCI foil

NG

NGNG

Residual risks are cited in the following section.

Comply with the safety instructions listed here and the
warning instructions in the other chapters of this manual
to reduce health hazards and to avoid dangerous
situations.

DANGER!

DANGER! Only have qualified electricians perform work on

DANGER!DANGER!

electrical components of the system!
Improper installation of components, or improper handling of
electrical equipment may result in injuries and life-threatening
danger.
If insulation is damaged immediately switch off the power supply
and have the system repaired by a qualified electrician!
Keep moisture away from electrical components. Moisture can
cause short circuits.

DANGER!

DANGER! Only have trained, specialized personnel perform work

DANGER!DANGER!

on the hydraulic equipment. De-pressurize the hydraulic system
prior to starting work on the hydraulic system. Completely de­pressurize the pressure accumulator. Ensure that the system is de­pressurized. Do not change pressure settings to exceed the
maximum values. Hydraulically powered parts may move
unexpectedly.
Hydraulic energy may cause severe or fatal injuries.

DANGER! Keep out of reach of children and dispose of properly. If
used improperly there is danger of suffocation. Avoid skin and eye
contact with VCI foil. Repeated or longer skin contact may dissolve
skin fat and cause dermatitis.

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Slew Drives

Safety

Moving parts

WARNING! Do not reach into moving parts or handle moving

parts during operation. Do not open covers when the device is in
operation. Pay attention to overtravel time: Prior to opening the
cover ensure that all parts have come to a standstill. Wear tight­fitting work clothing in the danger zone. Rotating components
and/or components with linear movements may cause serious

Falling materials

injury!

WARNING! Never enter the danger zones during operation. In

operation heavy material can fall uncontrolled or it may be

Fouling and loose objects

accelerated out of the device and cause severe injuries.

CAUTION! Always keep the work area clean. Remove objects that

are not being used. Mark stumbling hazards with a black/yellow
marking tape. Fouling and loose objects on the ground pose
slipping and stumbling hazards and may cause severe injuries.

3.3 Responsibility of the customer

Customer

The customer is the person or entity that operates the component
himself for commercial or economic purposes, or who transfers the
device to a third person for use/application, and who bears the
legal responsibility for protecting the users or third parties.

The component is used in commercial applications. Consequently
the owner of the component is subject to legal industrial safety
obligations.

In addition to the safety instructions in this manual, generally valid
safety and accident protection guidelines, and environmental
protection guidelines must be heeded and complied with for the
area of implementation of the component. In this regard:

 The customer must inform himself of applicable industrial safety

regulations, and in a hazard analysis identify other hazards that
may exist at the installation site of the component due to the
special work conditions. Customer must convert this information
relative to hazards into operating instructions for operation of
the component.

 The customer must ensure during the entire period of

component implementation that the operating instructions
created by the customer correspond to the current state of
legislation, and if necessary the customer must adapt these
operating instructions.

 The customer must clearly regulate and specify responsibilities

for installation, operation, maintenance, and cleaning.

 The customer must ensure that all employees who handle the

component have read and understood this manual.
In addition, customer must train personnel and inform
personnel of the hazards at regular intervals.

 The customer must provide the required protective equipment

for personnel.

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Slew Drives

Safety

Moreover the customer is responsible for ensuring that the
component is always in faultless technical condition; consequently
the following applies:

 The customer must ensure that the maintenance intervals

described in this operating manual are observed.

 The customer must have all safety devices inspected regularly

for function and for completeness.

The seals in the slew drive are subject to a certain amount of
wear. From time to time it is necessary to check the seals for
trouble-free seat and function. However depending on system
runtime it may also be necessary to replace the seals. Thus the
system manufacturer must ensure that sufficient space and
accessibility for inspecting and replacing the seals are available on
the total circumference of the slew drive.

3.4 Personnel requirements

Unauthorized person

WARNING!

WARNING! Unauthorized persons should not enter the work

WARNING! WARNING!

area! Unauthorized persons may cause dangerous

Specialized personnel

situations.

Specialized personnel are personnel who thanks to their specialized
training, skills, and experience, as well as knowledge of the
applicable regulations are capable of executing the tasks assigned

Qualified electrician

to them and of recognizing possible hazards on their own.

...is a person who thanks to his specialized training, skills, and
experience, as well as knowledge of the applicable regulations is
capable of executing work on electrical equipment and of
recognizing possible hazards on his own. The qualified electrician is
especially trained for the work environment in which he is active
and knows all relevant standards and regulations.
In Germany the qualified electrician must meet the requirements
set forth in the accident prevention guideline BGV A3 (e.g. master
electrical contractor). Similar regulations apply in other countries.

3.5 Personal protective equipment

Wearing personal protective equipment is required to minimize the
health hazards when working with the device.

 Always wear the protective equipment necessary for the

respective task when working with the device.

Always wear For all tasks always wear:

 Follow the instructions that have been posted in the work area.

Protective work clothing

is tight-fitting work clothing with low resistance to tearing, with
tight sleeves, and without projecting parts. It is primarily used as a
protection against entanglement by moving machine parts.

Do not wear rings, chains, or other jewelry.

14