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Summary of Contents for IMO WD-L
- Page 1 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!
- Page 2 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. © IMO Antriebseinheit GmbH & Co. KG Gewerbepark 16 91350 Gremsdorf, Germany Tel.: +49 9193 6395-20...
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Page 3: Table Of Contents
Slew Drives Table of contents Structure and function..........5 Brief description ............5 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 Intended use............. 8 General .................9 Explanation of symbols ..........9 Limitation of liability .......... - Page 4 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 Function test ............35 Maintenance ...............36 Safety ..............36 Cleaning..............37 Maintenance schedule ..........37 Maintenance tasks ...........39 6.4.1 Inspecting the mounting bolts ....39 6.4.2 Checking the tilting clearance .....39 6.4.3...
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Page 5: Structure And Function
Series WD slew drives are designed with worm gear. Series SP slew drives are designed with spur gear and straight toothing. 1.2.1 WD-L series (light series) 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. -
Page 6: Wd-H Series (Heavy Series)
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 Housing Lubricating nipple Bolted unions for the mounting structure... -
Page 7: Sp Series
Slew Drives Structure and function 1.2.3 SP series The SP slew drive is powered by a pinion gear unit. The drive motor (hydraulic/electric) is optional. SP-L, light version Fig. 3: Slew drive SP-L, light version Bolted unions for the mounting structure Lubricating nipple for tooth mesh Housing Bolted unions for the mounting structure... -
Page 8: Intended Use
Slew Drives Structure and function 1.3 Intended use The component is not designed for use in potentially WARNING WARNING WARNING WARNING 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. -
Page 9: General
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. -
Page 10: Copyright
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. -
Page 11: Customer Service
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. -
Page 12: Safety
Slew Drives Safety 3 Safety 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. 3.1 Safety devices Integration in an emergency-stop The component is designed for utilization within a system. -
Page 13: Responsibility Of The Customer
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 tight- fitting work clothing in the danger zone. -
Page 14: Personnel Requirements
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. - Page 15 Slew Drives Safety Safety footwear for protection against heavy falling parts and slipping on slippery substrates. Protective gloves to protect hands from friction, abrasion, puncture wounds, or deeper injuries, as well as from contact with hot surfaces. For special tasks wear Special protective equipment is required when executing special tasks.
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Page 16: Transport, Packaging, And Storage
Slew Drives Transport, packaging, and storage 4 Transport, packaging, and storage 4.1 Safety instructions for transport Never position yourself under a suspended load! Swinging WARNI WARNING WARNI WARNI or falling parts may cause injury or life-threatening danger. Carefully supervise the lifting processes and transport. WARN WARNI I I I NG WARN... - Page 17 Slew Drives Transport, packaging, and storage Transporting pallets with the Packages that are attached to pallets can be transported with a crane crane under the following conditions: Crane and hoist must be designed for the weight of the packages. The operator must be authorized to operate the crane. Attachment: 1.
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Page 18: Transport Inspection/Incoming Goods Inspection
Slew Drives Transport, packaging, and storage Unpacked slew drives can be transported with lifting gear when using eye bolts under the following conditions The lifting gear must be configured appropriately for the weight of the transport units. The ring bolts must be configured appropriately for the weight of the transport unit. -
Page 19: Packaging
Slew Drives Transport, packaging, and storage 4.4 Packaging The individual boxes are packaged according to the expected Packaging transport conditions. Only environmentally-friendly materials have been used for the packaging. The packaging is designed to protect the individual components against transport damage, corrosion, and other damage until installation. -
Page 20: Storage
Slew Drives Transport, packaging, and storage 4.6 Storage Storage of packages Only store packages under the following conditions: Do not store outdoors. Store in a dry and dust-free location. Do not expose to aggressive media. If stacking, use stable intermediate layers. Protect from direct sunlight. -
Page 21: Installation And Commissioning
Slew Drives Installation and commissioning 5 Installation and commissioning 5.1 Safety Prior to starting work switch off all energy supplies and DANGER DANGER DANGER DANGER safeguard them from being switched on again. If the power supply is switched on by unauthorized personnel, a life-threatening danger exists for persons in the danger zone. -
Page 22: Preparation
Slew Drives Installation and commissioning Personal protective equipment Wear the following protective equipment for all installation and commissioning work: Protective work clothing Safety footwear Protective gloves The warnings in this chapter make special reference to additional protective equipment that is required for certain tasks. -
Page 23: Determination Of Flatness Deviation, And Perpendicularity Deviation And Deformation Of The Mounting Structure
Slew Drives Installation and commissioning When using cleaning agents, ensure adequate ventilation. Maintain a strict ban on smoking. Remove old grease, dust, and fouling with lint-free cloths. Remove foreign material from the support surface of the mounting structure (including paint residue, welding beads, burrs). - Page 24 The size of the slew drive (WD-H) or of the running circle diameter (WD-L/SP) is indicated in the drawing number at position (1) and is shown in all documents and the type plate. Fig. 16: Drawing number For slew drives that are between the specified sizes, always assume the smaller value.
- Page 25 All the installed dimensions as specified in the drawing must be complied with. Permissible deformation of the mounting structure, under maximum load for series WD-L and SP slew drives Running circle diameter [mm] ≥100...
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Page 26: Selecting The Mounting Elements
Slew Drives Installation and commissioning Axial deflection, tilting, radial extension (or radial IMPORTANT contraction) of the mounting structure under max. load causes deformation of the mounting structure. 5.2.4 Selecting the mounting elements Only use mounting elements of the correct size, number CAUTION CAUTION CAUTION... -
Page 27: Tightening Bolts With A Torque Wrench
Slew Drives Installation and commissioning 5.2.5 Tightening bolts with a torque wrench Normally the mounting bolts are adequately secured through correct pretension. Do not use impact screwdrivers. Using an impact WARNI WARNI WARNI WARNING screwdriver may cause impermissible deviations between the bolt tightening forces. -
Page 28: Tightening Bolts With A Hydraulic Bolt-Tensioning Cylinder
When using bolts with fine-pitched thread or other bolt sizes or qualities, please contact our customer service ( page 2). For further information about bolts, please refer to the IMO main catalogues. 5.2.6 Tightening bolts with a hydraulic bolt-tensioning cylinder... - Page 29 Slew Drives Installation and commissioning The prescribed hydraulic pressure should not be exceeded WARNI WARNI WARNI WARNING when pretensioning the bolts. Excess hydraulic pressure may cause failure of the bolted union with the mounting structure and may cause severe personal injury or material damage.
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Page 30: Installing The Slew Drive
The hardness gap occurs with the raceway hardening and is located between the end and the beginning of the hardening. For the WD-L series the hardness gap must be arranged with an offset by 90° relative to the main load-carrying zone. The hardness gap is marked by a filling plug or a stamped "S". -
Page 31: Bolting The Slew Drive
Slew Drives Installation and commissioning 2. Arrange the hardness gap ( section 5.3.1 "Hardness gap") of the bearing ring charged with point load so that it is offset by 90° relative to the main load-carrying zone. The main load- carrying zone is in the main slewing range. CAUTION! The hardness gap or the filling plug in a slewing CAUTION! CAUTION! - Page 32 Slew Drives Installation and commissioning The end customer or the operating company must be instructed which tightening process was used. The process must also be used when servicing the unit to check the bolted union. Tightening torque M in Nm with incremental tightening Step 1 Step 2 Step 3...
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Page 33: Determining The Tilting Clearance
Slew Drives Installation and commissioning Tightening torque M in ft-lbs with incremental tightening Step 1 Step 2 Step 3 100% Mounting bolt dimensions Tightening torque M in ft-lbs Strength class 10.9 2.50 6.80 8.50 6.20 16.5 20.7 12.3 33.0 41.2 21.6 57.6 72.0... -
Page 34: Determining The Circumferential Backlash
Slew Drives Installation and commissioning Dial gauge Upper mounting structure Slew Drive Lower mounting structure Fig. 24: Measurement setup Procedure: Tilting clearance measurement 1. Switch off the system and safeguard it from being turned on again. 2. Permanently mark the measuring point in the main load direction on the housing and on the bearing ring. -
Page 35: Function Test
If using a brake that is bolted to the slew drive opposite side of the motor: Vent brake ( Operating manual for the brake). If using a permanent brake (series WD-L): Remove brake ( Operating manual for the permanent brake) 4. -
Page 36: Maintenance
Slew Drives Maintenance 6 Maintenance Follow the instructions provided in the operating manuals for the drive motors (hydraulic or electric), as well as the instructions provided for the optional potentiometer or permanent brake. 6.1 Safety Prior to starting work switch off all energy supplies and DANGER DANGER DANGER... -
Page 37: Cleaning
Slew Drives Maintenance 6.2 Cleaning Use cold solvent (e.g. white spirit, diesel oil, Kaltryl KEV) IMPORTANT that does not corrode the sealing material. Ensure that the cleaning agent does not get into the slew drive. Do not use a high-pressure cleaner to clean the slew drive. Unsuitable trichloroethylene-based or perchloroethylene-based cleaning agents, or other extremely aggressive cleaners damage the seal and may cause bearing damage. - Page 38 Slew Drives Maintenance wö Interval Maintenance task To be executed by weekly Check seal Specialist after 100 operating Tighten bolts Specialist hours Check tilting clearance Specialist after every additional Tighten bolts Specialist 700 operating hours Reduce the inspection interval if there is heavy wear or at least every 6 or continuous operation.
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Page 39: Maintenance Tasks
Slew Drives Maintenance The specified values are valid for the following conditions: Operating temperature on the slew drive < 70° C (158° F). Circumferential speed < 0.5 m/s (1.64 ft/sec) for SP slew drives. Output speed < 5 rpm for WD slew drives. Low to moderate load. -
Page 40: Checking The Circumferential Backlash
Slew Drives Maintenance Checking the tilting clearance increase d directly on the slew drive The measured value m1 determined at installation serves as the base value ( section 5.3.4 "Determination of tilting clearance"). Determine the value mx as described in the section 5.3.4 "Determining the tilting clearance". -
Page 41: Lubricating The Slew Drive
Slew Drives Maintenance 6.4.4 Lubricating the slew drive Regularly lubricate the slew drives to prolong their service IMPORTANT life and ensure safe operation. Always use the lubricants specified in the order drawing. If IMPORTANT using other lubricants pay attention to the relative mixability of the substances. -
Page 42: Inspecting The Seals
Slew Drives Maintenance 1. In succession, press grease into all lubricating nipples while simultaneously turning the slew drive all the way through, until a continuous collar of grease forms under at least one seal. 2. Ensure that old lubricant can escape without obstruction. 6.4.5 Inspecting the seals Damaged seals must be replaced immediately. -
Page 43: Dismantling
Slew Drives Dismantling 7 Dismantling At the end of the component's service life the component must be dismantled and disposed of in an environmentally responsible manner. 7.1 Safety Prior to starting work switch off all energy supplies and DANGER DANGER DANGER DANGER safeguard them from being switched on again. -
Page 44: Dismantling
Slew Drives Dismantling 7.2 Dismantling Prior to dismantling: Switch off the system and safeguard it from being turned on again. Physically disconnect all energy supplies to the system, discharge stored residual energy. Remove fuels and auxiliary materials, as well as residual processing materials and dispose of these items in an environmentally responsible manner. -
Page 45: Technical Data - Type Plate
Slew Drives Technical data – Type plate 8 Technical data – Type plate The type plate is on the housing and contains the following information: Manufacturer Drawing no./type Identification code consisting of: Order number, year of manufacture and consecutive number Module Web address Fig. - Page 46 Plant I, Gremsdorf, Germany Plant II, Gremsdorf, Germany Plant III, Summerville, SC, USA Headquarters Germany Solutions in Machine and Plant Manufacturing IMO Anlagenbau GmbH & Co. KG Imostrasse 1 91350 Gremsdorf Germany Tel. +49 9193 6395-50 Fax +49 9193 6395-5140 anlagenbau@goimo.com...
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