SLEWING DRIVE MANUAL

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Index

_ General _ Gear motored slewing drive parts _ Installation and maintenance 1 - Transport, handling and storage 1.1 - Transport and handling 1.2 - Storage 2 - Installation and maintenance 2.1 - Preparation 2.2 - Cleaning 2.3 - Shoulder bolts and shipping bolts 2.4 - Permitted horizontal deviation 2.5 - Permitted flatness deviation 2.6 - Mounting bolts 2.7 - Installation of slewing drive 2.8 - Maintenance, checks and lubrication 3 - Drive and Control 3.1 - Gearmotor assembly 3.2 - Encoder assembly

2 2 3 3 3 3 3 3 3 3 4 4 4 5 6 8 8 8

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SOLARTECNO SLEWING DRIVE MANUAL

Please read all instructions carefully before installation

_ General

The purchaser is responsible for protective measures and installation of all the equipment. Please read the manual carefully before installation, the working features can only be ensured if the

steps have been followed correctly. The following instructions provide information required for the correct installation and maintenance of

the slew drives. All steps listed below must be carried out by qualified personnel. Please contact our technical department for any further assistance. The updated version of this manual is published on our website: www.transtecno.com. Please check for

the latest version.

_ Gear motored slewing drive parts

Encoder

Outer ring

Inner ring

Gearmotor

Grease plugs

Grease plugs Seals


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_ Installation and maintenance

Please note: The following text includes special notes and procedures that must be followed.

1. Transport, handling and storage 1.1 - Please keep the slew drive in an appropriate position and avoid any knocks and bumps. Wear gloves and handle the slew drive carefully. Use the holes of the rings in the slewing drive to fix bolts for careful hosting and handling. 1.2 - Store only in an appropriate position and in closed rooms, avoiding any contact with water. The surface corrosion protection holds for approx. 5 months in closed packaging, a longer period storage requires special protective measures. 2. Installation and maintenance 2.1 - Preparation Check the slewing drive for physical damage Clean the slewing drive and the mounting structure, see Cleaning. Remove extraneous materials from supporting surfaces 2.2 - Cleaning Clean the outer mounting surfaces using a cold solvent that will not damage the rubber seals. Use suitable materials to clean the surfaces. 2.3 - Shoulder bolts and shipping bolts When mounting the slew drive the shoulder bolts must not be removed. The shipping bolts however should be removed.

Shoulder Bolts Shipping

Bolts


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2.4 - Permitted horizontal deviation of the mounting surface

3 5 7 9 12 14 17 21 25

Permitted pendicularity

deviation [ mm ] 0,07 0,09 0,11 0,16 0,23 0,26 0,32 0,42 0,49

Permitted perpendicularity

deviation [ ° ] 0,09 0,09 0,09 0,09 0,09 0,09 0,09 0,09 0,09

Size of slewing drive

α [ ° ]

x [ mm ] α = Angle deviation X = Distance deviation

2.6 - Mounting bolts We cannot guarantee or recommend the mounting fasteners used. Please take care in specifying this item which will connect the slew drive to your system. Correct size, number and quality should be used. Grip ratio ( grip length to diameter of bolt ) must be considered, from minimum ≥ 2 to maximum ≤ 10. The durability of bolt connections, function and lifespan of the slewing drive can be affected in case of non-compliance. Use flat washers of appropriate size and strength choice of tightening torque so that the permitted

interfacial pressure is not exceeded.

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2.5 - Permitted horizontal deviation of the mounting surface

3 5 7 9 12 14 17 21 25

Flatness deviation

[ mm ] 0,04 0,1 0,1 0,12 0,15 0,15 0,15 0,2 0,2

Size of slewing drive


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2.6.1 - Tightening torque

Use of split rings, split washers, etc… is not permitted. Tightening torque and initial preload for mounting bolts. The information in this table is for guidance only.

Metric bolts

Mounting bolt dimensions

Class 4.8 Class 8.8 Class 10.9 Class 12.9

M8 11 ± 1 26 ± 4 33 ± 3 45 ± 6

M10 22 ± 2 52 ± 7 72 ± 6 90 ± 10

M12 40 ± 4 90 ± 12 120 ± 10 150 ± 20

M16 100 ± 10 225 ± 35 305 ± 25 380 ± 50

M18 135 ± 15 310 ± 45 415 ± 35 521 ± 70

M20 190 ± 20 410 ± 50 600 ± 50 750 ± 100

Tightening torque [ Nm ]

2.7 - Installation of slewing drive Clean the mounting structure from welding, galvanizing, residues, dirt, etc... Lift the slewing drive with bolts. The slewing drive should be mounted in without any load applied. The durability of bolt connections, lifespan and function of the slew drive can be affected in case of non-compliance. 2.7.1 - The following procedure must be followed in order to avoid problems between bolt tightening forces Apply thread lock liquid to threads. Preload the bolts including washers ( if required ) crosswise. See the general pattern in the drawing

below of how to tighten the bolts in a crosswise sequence. Start with either the inner or outer ring. The crosswise torque of all bolts to 30% of tightening torque is applied first. Then repeat crosswise torque, tightening 50%. Finally crosswise torque to 100% of tightening torque.

1

2

3

4

5

6

7

8

5


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Complete first the inner or the outer ring, then do the other ring. Once the screw is tightened, please make a permanent mark on the position of the screw head. This will be used later during inspection to be sure that the screw has been correctly tightened. 2.8 - Maintenance, checks and lubrication 2.8.1 - Mounting bolts and checks To compensate for possible settings, you must tighten again the bolts to the correct torque. This should be done after no more than 100 hours of operation and without any external load applied to the bolt connection. This inspection should be repeated annually. The inspection frequency can be reduced under special operating conditions. In case of loose bolts, replace all bolts and washers with new ones. 2.8.1 - Lubrication and mounting bolts There are three places which need to be lubricated: slewing ring raceway, worm thread and taper roller bearings. Slewing drives are supplied fully lubricated.

Parts needed to be lubricated Roller bearing Ring raceway

Worm gear thread

Recommended grease 7014-1 High temp. By China petroleum and

chemical corp.

Applicable temperature range [ °C ] -40 ~ +200

Color White

Four ball test 3500 N welding load

Viscosity ( -40°C, 10 sec-1 ) Pas 653

Dropping point [ °C ] 316

Penetration, Worked 0,1mm 67

Note: this kind of environmentally friendly grease is harmless to humans.

Parts needed to be lubricated 3 5 7 9 12 14 17 21 25

Ring raceway / 10 –15 15 - 20 30 - 35 45 - 50 55 - 60 70 - 75 120 - 130 140 - 150

Worm gear thread 330 - 350 50 - 60 55 - 65 90 - 100 100 - 110 100 - 110 110 - 120 130 - 140 130 - 140

Taper bearings 7 ± 0,5 7 ± 0,5 7 ± 0,5 10 ± 0,5 10 ± 0,5 10 ± 0,5 10 ± 0,5 10 ± 0,5 10 ± 0,5

Quantity of grease filled [ g ]

Please follow the manufacturers instructions when handling the respective lubricants. While rotating the slewing drive, inject grease into all the cleaned grease plugs. Please refer to the table for the quantity of grease required.


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Roller bearing lubricate point

Roller bearing lubricate point

Worm thread lubricate point

Ring raceway lubricate point

Lubrication is recommended every 3 years by filling each cavity completely with new grease.

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Work conditions Grease filled slewing drive lubrication intervals

Dry and clean workshop, ( turntables, robot, etc… ) Every 500 hours of operation or once every 1 year

Difficult conditions in open areas ( crane, bulldozer, etc… ) wind turbine, solar, lifts.

Once every year

Aggressive climatic conditions ( sea, desert, artic climate, very dirty surroundings, more than 70 conti-

nuous operating hours per week ) Every 150 hours of operation or every 4 months

Extreme conditions ( tunneling machines, steel mills, oil field )

Every 50 operating hours or every 2 months.

The specified values are valid for the following conditions: Operating temperature on slewing drive –30°C ~ +60°C Driver rotational speed < 2 rpm ( maximum speed varies depending on the torque load applied during

the same time ) Low to medium loads ( see the following table )

Size 3 5 7 9 12 14 17 21 25

Rated torque [kNm]

0,2 0,3 1 8 9 11 14 17 20

This table can never replace values established through experience; the most frequent cause of slewing drives malfunction is insufficient lubrication. Cleaning a slewing drive with a steam jet or high pressure cleaner is not permitted.


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3. Drive and Control 3.1 - To install the gearmotor clean the mounting surface ( see cleaning ) Join the adapter flange and tighten the screws between the gearmotor and slew drive. Connect the AC or DC power to the motor and check the rotation adjust CW or CCW direction by changing motor connections ( for more info please visit www.transtecno.com or see Transtecno AC or DC catalogues depending on the gearmotor choice ) Rotate the motor without load to confirm it rotates smoothly. If it does not rotate please check the current system, the joint flange and the presence of grease inside the slewing drive. After the test without load is succesfully complete add the rated load.

Gearmotor

Joint flange

Connection screws

Slewing drive

3.2 - Encoder assembly Remove the encoder flange on the back of the worm of the slewing drive. Fit the encoder and tighten the 2 screws. Connect the encoder to the power supply according to the following table.

EMI 58 ENCODER READY Function Cable colours

0 Volt Black

+ Vdc Red

Ch. A Green

Ch. B Yellow

Ch. Z Blue

Ch. A- Brown

Ch. B- White

Ch. Z- Orange

╧ shield

Connections and standard colours

TRANSTECNO accepts no liability for: Failure to pass the manual to the related third party Non-compliance with installation and maintenance instructions Any omission or errors in following the manual


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