OPERATING INSTRUCTIONS LSF | Wire Rope Winch

MADE IN GERMANY

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Please do not use the hoist until all operators have carefully read this manual and have signed the form on the last page.

LIFTKET Hoffmann GmbH Dresdener Straße 66-68 04808 Wurzen / Germany +49-3425-89 24-0 +49-3425-89 24-99 sales@liftket.de www.liftket.de Ho 01/2021 englisch Original operating instructions © 2021

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Contents

1 Safety advice ............................................................................................................................................................ 5 1.1 Advice for the use of the wire rope winches ............................................................................................................. 5 1.2 European regulations ............................................................................................................................................... 5 1.3 Spare parts ............................................................................................................................................................... 6

2 Technical overview ................................................................................................................................................... 7 2.1 Explanation of type designation................................................................................................................................ 7 2.2 Technical data of the wire rope winches .................................................................................................................. 7

3 Assembly of the wire rope winch .............................................................................................................................. 8 3.1 Wire rope winch with wall bracket ............................................................................................................................ 8 3.2 Wire rope winch with foot support ............................................................................................................................ 9

4 Electrical connections ............................................................................................................................................... 9 4.1 Mains connection ................................................................................................................................................... 10 4.2 Electric connections for the pendant control ........................................................................................................... 10 4.3 Electric limit switch for lifting ................................................................................................................................... 10 4.3.1 Layout .................................................................................................................................................................... 10 4.3.2 Adjustment of the electric limit switch ..................................................................................................................... 11 4.3.3 Hazardous operations ............................................................................................................................................ 11

5 Directions and prohibitions for use ......................................................................................................................... 12 5.1 Directions for use ................................................................................................................................................... 12 5.2 Prohibitions of use .................................................................................................................................................. 12

6 Maintenance ........................................................................................................................................................... 13 6.1 Test and maintenance works.................................................................................................................................. 13 6.2 Replacement of the wire rope................................................................................................................................. 14 6.2.1 Replacement of the wire rope at the hook tackle.................................................................................................... 14 6.2.2 Replacement of the wire rope at the drum ............................................................................................................. 14

7 Construction and mode of operation of the DC disk brake ..................................................................................... 15 7.1 Construction and mode of operation of the DC disk brake ..................................................................................... 15 7.2 Check of the BFK 457-08 ....................................................................................................................................... 16 7.3 Assembly of the DC disk brake .............................................................................................................................. 16 7.4 Faults on the DC disk brake ................................................................................................................................... 16

8 Lubrication .............................................................................................................................................................. 17

9 Measures to be taken at the end of the end of the S.W.P. ..................................................................................... 18

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1 Safety advice 1.1 Advice for the use of the wire rope winches The wire rope winches are designed to lift and to lower loads vertically in building and mounting trade and for different transportation tasks. Every other mode of use is prohibited and undertaken at the risk at of the operator. Refer to the manufacturer in advance for any special mode of use. The modern design of the wire rope winch guarantees safety and economic use with a high lifting speed and a high load capacity. The wire rope winch should preferably be attached to a ceiling, but it is also possible to mount these to walls with a special mounting kit (optional). The wire rope winch is wear-resistant and nearly maintenance free due to the closed oil filled gear box, the surface hardening of the toothed wheels made from high-strength steel, which are ball bearing supported. A wear resistant DC-brake ensures safe braking and holding of the load. Using the wire rope winch to carry people is strictly prohibited! Before initial operation, ensure that all electrical wires are connected safely, and are undamaged and that all equipment can be switched off at a main switch.

It is the responsibility of the operator to ensure that all suspension points of the wire rope winch are calculated to withstand the dynamic forces caused by the lifting equipment. The wire rope winch can only be operated safely if correctly mounted, maintained and operated.

For use of the wire rope winch in an aggressive environment - please consult the producer. The following safety advice is issued for both the maintenance and the operation of the wire rope winch and for most standard uses. It may not necessarily cover all situations. If you are in any doubt, please contact your dealer. This manual will tell you how to operate the wire rope winch and how to handle its suspension or its loads safely. It is compulsory to take care of the following safety advice. They may not be complete for each mode of use, please ask the producer or your local service partner if any question came up. You should keep this manual clean, complete and in a legible condition. Neither the manufacturer nor dealer accept responsibility for any damage or lack of functionality due to the following:

• Carrying out inappropriate operations for a wire rope winch

• Product modification without the express authorization of the manufacturer

• Inappropriate operation of the wire rope winch

• Operational errors

• Failure to use the product as instructed in the manual

1.2 European regulations The basis for the assembly, first use, certification and maintenance of electric chain hoists are within Germany and within the area of the European community, the following regulations, and all recommendations of this manual. Please pay particular attention to the rules for the prevention of accidents and the statutory regulations

European Regulations

2006/42/EG EG-Machine directive

2014/30/EG EG-Directive relating to electromagnetic compatibility

2014/35/EG EG-electrical equipment designed for use within certain voltage limits

DGUV accident prevention regulations

DGUV Vorschrift 1 (BGV A1:2009) Principles of prevention

DGUV Vorschrift 3 (BGV A3:2005) Electrical facilities and equipment

DGUV Vorschrift 52 (BGV D6:2000) Crane systems

DGUV Vorschrift 54 (BGV D8:1997) Electric winches, lifting and pulling equipment

DGUV Regel 100-500 (BGR 500-2.8:2008) Hoisting accessories

DGUV Grundsatz 309-001 (BGG 905:2004) Principles for checking of cranes

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Harmonized regulations

EN ISO 12100:2010 Safety of machinery; Basic terminology, methodology

EN 14492-2:2019 Cranes - Power driven winches and hoists

EN ISO 13849-1:2015 Safety of machinery - Safety-related parts of control systems; General principles for design

EN 60034-1:2010 Rotating electrical machines; Rating and performance

EN 60034-5:2001+A1:2007 Rotating electrical machines; Degrees of protection provided by the integral design of rotating electrical machines

EN 60204-32:2008 Electrical equipment of machines; Requirements for hoisting machines

EN 60529:1991+A1:2000 +A2:2013 Degrees of protection provided by enclosures (IP-Code)

EN 60947-1: 2015 Low-voltage switchgear and control gear

EN 61000-6-2:2019 Electromagnetic compatibility, Immunity for industrial environments

EN 61000-6-3: 2007 + A1:2011 Electromagnetic compatibility, Emission standard for residential, commercial and light-industrial environments

EN 61000-6-4:2019 Electromagnetic compatibility, Emission standard for industrial environments

Regulations and technical specifications

FEM 9.511: 1986 Rules for the design of series lifting equipment; Classification of mechanisms

FEM 9.661: 1986 Rules for the design of series lifting equipment; Dimensions and design of rope reeving components

FEM 9.683: 1995 Series lifting equipment; Selection of hoisting and travelling motors

FEM 9.751: 1998 Series lifting equipment; Power driven series hoist mechanisms; Safety

FEM 9.755: 1993 Serial hoist units; Measures for achieving safe working periods

DIN 15020: 1974 Principles relating to rope drives

EN 12385-4:2002 + A1:2008 Steel wire ropes; Safety

The producers guarantee depends on consideration of these regulations and all of this manual. Please pay attention to chapter 5 especially! Other national regulations are valid for countries outside of the European community. Maintenance work for hoisting equipment has to be carried out by trained and authorised people only. The main switch has to be switched off before.

Trained specialists are highly qualified specialist personnel and have to have a theoretical training as well as long term experience in the field of winches, hoists or cranes. They have to have an excellent know-how of the special regulations and must be able to decide whether the lifting equipment is in a safe working condition or not. They have to fill in the forms of any maintenance work, repair work or test. The wire rope winch has allowed only to be used by people who have complete knowledge of this manual; the manual should always available showing who has signed the form on the rear cover of this brochure. 1.3 Spare parts Only original spare parts must be used. The producers guarantee is given for those spare parts only. The producer cannot be held responsible for failures and breakdowns caused by use of not original or wrong spare parts.

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2 Technical overview

Figure 1: Layout of the wire rope winch with foot support 2.1 Explanation of type designation Example: LSF 200 / 1 - 15 lifting speed [m/min] load capacity [kg] wire rope winch 2.2 Technical data of the wire rope winches

LSF 200/1-15

duty group FEM 9.511 2m

voltage 50 Hz, 3 phases V 400

motor power kW 0.55

load capacity kg 200

lifting speed m/min 15

max. lifting height m 120

wire rope- Ø DIN 3069 mm 5

min. break force of the wire rope kN 14.5

weight of the wire rope winch kg 42

fuse A 10

cable for power supply mm² 5 G 1.5²

intermittent duty (duty rate; starts per hour) 40% ED; 120 S/h

short time duty* min 40

* description of short time duty:

Short time duty means uninterrupted operation without breaks. After the specified operating time has been reached, the rope winch may only be operated in intermittent duty, while observing the maximum duty cycle.

Table 1: Technical data

control box motor with brake power supply cable control pendant

rope drum actuator for electric limit switch for lifting hook tackle

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3 Assembly of the wire rope winch 3.1 Wire rope winch with wall bracket

dimension of the fastening points

Figure 2: Assembly of the wire rope winch with wall bracket Prepare the assembly of the wire rope winch onto the wall according to the dimensions as shown in Figure 2. Assemble the wire rope winch by the wall bracket. (Caution: The wall surface must be vertical!)

Caution!

The suspension points have to be calculated to withstand the forces created by the winch with wall bracket. Screws M10 according to DIN 933 and strength class 8.8 have to be used. A tightening torque of 45 Nm is required.

Check that the rope winds properly onto the drum on initial use. If the rope winds onto one side of the drum only, please check if the winch is fitted absolutely horizontally. In case of loose rope, the rope has to be wound down and after that wound up, guided by hand, so that it is tight on the drum. (Attention: Danger of injury - Use safety gloves!). Check that the whole distance covered by the load is clear of any obstructions. Check the unloaded hook to see if it moves in the directions shown by the symbols on the buttons of the control device (Figure 5). Run the hook carefully up to the upper hook position and check that the electric limit switch is working properly. After the limit switch has switched off lifting mode, lowering must still be possible. The electric cables must not be squeezed or pulled.

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3.2 Wire rope winch with foot support

dimension of the fastening points

Figure 3: Assembly of the wire rope winch with foot support Prepare the assembly of the wire rope winch on the wall according to the dimensions as shown in Figure 3. Assemble the wire rope winch by the wall bracket. (Caution: The wall surface must be horizontal!)

Caution!

The ceiling mounting points must be designed for the intended load and executed in such a way that the horizontal installation of the cable winch is ensured. Hexagon head screws M10 - DIN 933 with the strength properties of min. 8.8 must be used and tightened with a tightening torque of 45 Nm.

Test: Check the correct assembly according to point 3.1. 4 Electrical connections The electrical system must be installed in accordance with the applicable regulations. After erection of the plant, the tests according to item 20.2 and 20.3 of EN 60204-1 must be carried out. Details of the control system can be seen in the circuit diagram. The electrical equipment complies with the currently valid EN 60204 Part 32 or EN 60204 Part 1. The wire rope winch meets the requirements of the protection class IP 54.

mains cable 4G1.52 supply for the motor 8G1.52 supply for electric limit switch in the winch casing cable for control pendant

Figure 4: Electrical connections

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4.1 Mains connection Work on the electric installation may only be carried out by qualified electricians. The mains power supply (main incoming line conductor) must be disconnectable at all poles by means of a mains switch (in accordance with EN 60204-1 section 5.3). Check that the mains voltage agrees with that specified on the type plate. Connect mains current supply lines and control line according to wiring diagram (if the control cable is not included in the delivery). The L1, L2, L3 and PE terminals for the mains connection are located in the separate control box. A cable 4G1.5² (minimum cross section 1.5 mm²) is necessary for the mains connection.

After connecting, press button for lifting. If the load moves downwards, interchange the L1 and L2 supply cores. Before starting repair work, the system must be disconnected from the power supply.

4.2 Electric connections for the pendant control Connect the cable for the pendant control according to wiring diagram.

Figure 5: Control pendant 4.3 Electric limit switch for lifting 4.3.1 Layout

Figure 6: Electric limit switch for lifting Caution!

The emergency limit switches should not be used under normal operation.

emergency stop lifting lowering

rope drum actuator for electric limit switch for lifting hook tackle

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4.3.2 Adjustment of the electric limit switch The load hook switches off the lifting motion by touching the actuator of the limit switch. The switch point is pre-set at the factory. The limit switch should be activated immediately after the hook touches the actuator. The switch cam is adjustable and attached to the shaft by a small threaded pin. Caution! When lowering the hook, it is not permitted to release all rope from the drum. A minimum of four windings should remain on the drum to avoid winding in the wrong direction.

Figure 7: Winding scheme 4.3.3 Hazardous operations If the operator doesn’t switch off the lowering motion after the load has reached the ground or the winch is assembled higher than the length of rope allows, the rope could accidentally be fully released and rewound in the wrong direction. The direction of motion will no longer comply with the symbols on the buttons.

Further operation of the wire rope winch is prohibited!

Another reason for a wrong direction of motion may be, that the wire rope is trapped between loose windings / layers of the lower rope windings. In case of wrong motion direction, the load will be lifted despite of the button for lowering is pressed. If the highest hook position is reached in this case, the limit switch won’t work anymore, and this could cause a rope or winch casing to break and the load to be dropped.

Further operation of the wire rope winch is prohibited!

If the failure in direction motion is recognized during the operation, the rope must be driven back to the start point of wrong direction winding, the cause of malfunction has to be removed and the operation can be continued in the right direction. In case of wrong winding motion, if the hook tackle has touched the limit switch actuator, no further movement up or down will be possible. After disconnecting the power supply, the L1 and L2 wires must be interchanged to allow the hook to leave the limit switch area. The original connection must then be re-established. The problem which has led to the wrong lifting direction has to be sorted out as above.

The wire rope must be wound up regularly and tightly (Use safety gloves!). Check, that the wire rope is undamaged.

rope drum

suspension plate unwinded rope

limit switch

cam with threaded pin

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5 Directions and prohibitions for use 5.1 Directions for use Use the wire rope winch in accordance to the European regulations, harmonized regulations and local legislation and directives for different countries. Please pay particular attention to the rules for the prevention of accidents and the statutory regulations. During initial operation check, if there is sufficient wire rope on the rope drum for intended use. In the lowest hook position, a minimum of four wire rope windings must be left over on the rope drum. The hook must reach the bottom. Compare the specified wire rope length as given in the inspection book. If the wire rope length is not sufficient, it is prohibited to take the wire rope winch into operation. Furthermore, the following safety instructions should be applied:

• The danger area of the wire rope winch has to be blocked off and has to be marked by sign “Attention! Hoist in operation”.

• The suspended load should be visible all the times for the operator and if more than one person is involved in the operation, they must be able to communicate with each other at all times.

• If the hoist is not in use the load must be on the ground and the main switch off.

• No person is allowed underneath a suspended load

• Any repair work must be carried out by trained personnel

• If the motion of the winch endangers persons or goods, the emergency button has to be pressed and may only be released after the problem has been rectified. The load has to be secured in the meantime.

5.2 Prohibitions of use

• Starting operation before function inspection and without instruction

• Transporting people

• Moving loads heavier than the safe working load

• Pulling loads which are tilted

• Tearing off loads or goods

• Moving of swinging loads

• Using the wire rope winch with people underneath the load

• Transport of liquid metals

• Using the winch with damaged rope

• Using the winch if the direction of motion is different from the symbols on the control buttons

• Usage of emergency limit switches under normal operation

• Using the hoist without undertaking the regular inspection

• Inching mode

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6 Maintenance

All maintenance work must be carried out by trained specialists and may only be carried out if the wire rope winch is unloaded and the mains is switched off so that the power supply is disconnected.

6.1 Test and maintenance works The operation of the wire rope winch is covered by the DGVU Vorschrift 54 §23 “Electric winches, lifting and pulling equipment” regulations in Germany. The winch must be inspected by a trained specialist before first use and after any major changes. The design and method of manufacturing of the wire rope winch has received a general approval. The dynamic and static tests are accomplished acc. to EC Machinery Directive by manufacturer. The suspension points and the unit itself must undergo a yearly safety check by a trained person. Trained specialists are highly qualified specialist personnel or the manufacturer’s after-sales service personnel. If the hoist is in heavy use (two or three shifts, high percentage of work with nominal load, dusty or high temperature environment) this maintenance work should be done more frequently. All maintenance work must be entered in the crane logbook included in the delivery.

check

daily 3 months yearly

visual check of the whole equipment ●

function check

• brake: braking distance under load

• limit switch: switch-off up, down

• wire rope: squeezed, bent, dented and broken wires (DIN 15020 Bl.2), rust, condition of the windings

● ●

●

maintenance / adjustment

• brake: control of the air gap

●

lubrication of the wire rope ●

universal check

• screw fittings

• safety elements

• hook tackle / load hook

● ● ●

electrical control

• power supply cable: squeezed, pulled off, condition of insulation

• control pendant: damages, proper function, emergency stop and all electric accessories

• control box: damages, sealing

• check of limit switch

●

●

● ●

Table 2: Test and maintenance works

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6.2 Replacement of the wire rope 6.2.1 Replacement of the wire rope at the hook tackle

wire rope suspension plate wedge hook mounting

Figure 8: Hook tackle

• Screw off the suspension plate for wire rope.

• Screw off hook mounting.

• Punch out the wedge and pull out the wire rope.

The assembly of the new wire rope should be done in the inverted order. After assembly the tight fit of the wire rope has to be checked.

6.2.2 Replacement of the wire rope at the drum The standard length of the wire rope is 81.5 m and the diameter of it 5 mm. The drum therefore is designed for 5 layers of wire rope.

wire rope drum shaft cover suspension plate window of the end plate wire rope

Figure 9: Replacement of the wire rope at the drum

• Release the wire rope by pressing the down button.

• Dismantle the shaft cover.

• Swivel the drum until the rope suspension plate is visible behind its window.

• Disconnect power.

• Loosen the two rope suspension plate screws.

• Pull out the old rope.

• Fit the new rope through the hole in the drum underneath the rope suspension plate.

• Tighten the two screws in parallel.

• Assemble the shaft cover.

• Reconnect power.

• Move the rope up properly and tightly. (Use safety gloves!)

Ensure that the direction of motion is correct!

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7 Construction and mode of operation of the DC disk brake 7.1 Construction and mode of operation of the DC disk brake The DC disk brake consists of the magnetic body (1) concerning the magnetic coil and the mounting screws, the plate (2), the brake pressure springs, the brake disk with brake lining and the fan (3). The fan cover (4) protect the brake against mechanical damages.

5 2 1 3 4 Figure 10: Layout of the DC disk brake

Figure 11: Construction of the DC disk brake Mode of operation of DC disk brake The brake is supplied by a rectifier circuit which is located in the control box. It operates according to the fail-safe principle. If there is a power failure, the brake acts automatically so that the load is held securely in every position. In this case, that the magnetic coil (1) is without power supply the anchor plate (2) will be pressed against the brake lining of the brake disk by the pressure springs. The brake disc is locked to the motor pinion shaft (5) using a feather key.

1 magnetic body 2 plate 3 fan 4 fan cover 5 motor pinion shaft

label / type plate magnetic coil

pressure spring rotor with brake lining hub anchor plate

distance bush flange hexagon screw DIN 912

SL

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7.2 Check of the BFK 457-08 The air gap between the magnetic coil (1) and the anchor plate (2) should be checked once a year or if the brake distance is too long. If the air gap is too large, the brake has to be replaced. 1. Remove the fan cover (4). (Disconnect mains supply before!) 2. Push the thickness gauge between magnetic body (1) and anchor plate (2). 3. Check the air gap SL. If the maximum air gap of 0.5 mm is reached the brake has to be scraped and replaced by a new

one. 4. Screw on the fan cover (4). 5. Function check:

The nominal load must be held securely and braked securely out of motion. The braking should be smoothly.

The brake must be replaced, if the rotor has a thickness of 5.5 mm.

7.3 Assembly of the DC disk brake 1. Press the hub onto the shaft. 2. Secure the hub by use of a retaining ring against axial movement. 3. Assemble DC disk brake to the hub. 4. Screw the DC disk brake on the gear cover by use of the hexagon screws 3x M5. 5. Tighten the screws with equivalent torque of 5.5 Nm.

Assembly of the hub onto the shaft

Assembly of the DC disk brake on the gear cover

Tightening by a torque wrench

Figure 12: Assembly of the DC disk brake Attention! For order of spare parts, the complete type designation has to be submitted!

The disassembly should be done in inverted order!

7.4 Faults on the DC disk brake Troubleshooting and fault elimination

Faults Causes Remedy

brake does not release; air gap is not zero

coil has contact to ground or between the windings

Replace the DC disk brake.

wiring wrong or defect Check wiring diagram and correct wiring

rectifier wrong or defect Compare wiring of the bridge at rectifier with wiring diagram. Measure DC-voltage between terminals 5 and 6. If differences occur change the rectifier.

air gap too large Replace the DC disk brake.

Table 3: Troubleshooting and fault elimination If the rectifier defects occur repeatedly, the brake shall be replaced even if no winding short circuit can be detected. Defect may occur only in warm operating condition.

gear cover hub retaining ring

brake hub

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8 Lubrication Gear box: The gear box is already filled with oil by the manufacturer. The oil must be changed if the wire rope winch is going to be overhauled. The oil has to be disposed in accordance with the law of environmental protection. Use oil with a viscosity of 220 mm²/s at 40°C and an operating temperature of - 20°C to + 40°C. The necessary amount of oil is 0.25l. Alternative oils are:

Supplier Oil designation

Tectrol © Tectrol Gear CLP 220

Fuchs Europe © Renolin CLP 220

Mobil © Mobil SHC 630

Shell © Omala 220 S2 G220

Total © Carter EP 220

Castrol © Alpha SP 220

Table 4: Alternative oils Wire rope: The rope must be cleaned and lubricated at regular intervals (3 months minimum); if very dirty (concrete, cement) this work should be done more often.

Supplier Designation Application

Elaskon© Elaskon SK-H Secondary lubrication

Elaskon© Elaskon 30 Secondary lubrication

Elaskon© Elaskon IIISTAR LM Secondary lubrication

Elaskon© UNOLIT Spray Öl Secondary lubrication

Elaskon© Elaskon Reiniger Cleaning

Elaskon© Elaskon Multifunktionsspray SPEZIAL Multi-function product

Elaskon© Elaskon MULTI 80 Multi-function product

Table 5: Wire rope care products Hook tackle: Lubricate the roller bearing on the hook after approx. 20,000 lifting cycles or once a year. If in heavy use, shorten the interval and use a special anti-friction bearing grease. Lubricants recommended for lubrication of bearings:

Supplier Designation

Tectrol © Tectrol Spezial-Fett LX 2

Fuchs Europe © Renolit Duraplex EP3

Fuchs Lubritech © Lagermeister LX EP2

Table 6: Alternative lubricants for bearing

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9 Measures to be taken at the end of the end of the S.W.P. After the wire rope winch or its components have reached the end of the S.W.P. the wire rope winch or its components have to be overhauled or to be taken finally out of operation. The parts have to be disposed in accordance to the law of environment protection. Metals, rubber, plastics have to be disposed or recycled separately.

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The operators who have been instructed to this wire rope winch and have read the manual and especially the safety advice.

Name, Surname Date Signature

The advice contained within this manual should be implemented by the appropriate skilled and qualified operators of wire rope winches. Further information for other fields of operation are not considered herewith. If changes to the normal operations are discovered (such as unusual noise, vibrations, higher input current or frequently blowing fuses) the wire rope winch has to should be taken out of operation and the load area has to be isolated because a fault is possible, which can result in danger to people or goods. The operator or owner of the wire rope winch has to call a trained specialist to repair the wire rope winch.