BULL winches instructions and troubleshooting - Bezares SA - Führender Hydraulikhersteller

IMPORTANT: Read this manual carefully and make sure you fully understand it before installing and using the winch. The following signs are used in this manual according to the type of risk the operator faces:

If you have any doubt about its use or the correct operation, please contact our closest distributor or our after-sales service.

IMPORTANT
The operator is solely responsible for safe installation and operation.

Assembly on the vehicle

These instructions should be respected in order to avoid winch misalignment under load, which might block the internal components (planetary gears, clutch, mechanical brake), cause excessive bearing wear, and breaking of fastening screws.
Use the following template for drilling in order to fasten the winch to the vehicle chassis:

The surface on which the winch is bolted should be made of steel, with a thickness no less than 7 mm, and with a flatness equal to or less than 0.4 mm. In order to fasten the winch to this surface, eight M10 screws, with a minimum quality of ISO 10.8, should be used. They should be inserted 20 mm into the aluminium winch supports.

The screws should be self-locking through impregnation, or DIN 6798-type serrated washers. If the winch is mounted on a base plate with the holes drilled according the template indicated below, it should be screwed to the chassis with the same number and quality of screws.

Download template for E40 / E35 | Download the template for C40

„A“ measure E40 = 259,3mm
„A“ measure E35 Pickup = 161mm

WARNING
The maximal flow and pressure should not exceed the values shown in the next hydraulic model:

Filters on the pump suction line are not recommended. The filter on the return line should have a filtering capacity between 10 μm
and 25 μm. Use hydraulic oil with anti-wear and anti-foam additives, according to the standard DIN 51524 / 51525 (type HLP).

In general the following viscosities are recommended, based on the room temperature:
– 22 cSt for cold temperatures
– 37 cSt for mild temperatures
– 46 cSt for warm temperatures
The oil temperature should not be lower than -15º C or higher than 80º C.

NOTE
Before rolling the cable and using the winch for the first time, it should be operating without a load for enough time so that all of the oil in the hydraulic circuit has gone through the return filter at least once. It is recommended to operate the winch without a load for 10 minutes to eliminate all the air from the circuit, and to prevent the formation of foam in the tank.

Roller guide installation (E40)

The roller guide can be assembled in two different positions, depending on where the drum will collect the cable.
The lower position of the guide collects the cable under the drum. Recommended.
The upper position of the guide collects the cable on top of the drum.

Use a cable with the following characteristics:Galvanized 6×19+1 construction, according to DIN 3060 and DIN 3066 standards respectively, or its ISO 2408 equivalent.
Minimum / Recommended resistance of the cable section: 180/200 Kg/mm2.

The minimum effective breaking strength is for a new cable. Applying the UNE-EN 14492-1 regulation, the minimum cable-breaking load should double the maximum traction capacity of the winch.
Insert the cable through the two holes, leaving two rolled turns, and screw in the DIN 913 M10x8 set screw as shown in the drawing, making sure that the cable end does not exceed the hole where the set screw is screwed.

DANGER
The set screw does not retain the cable under load by itself. Leave at least 5 turns of rolled cable on the drum to operate safely.

NOTE: It is recommended to paint the last two meters of cable in red or yellow, on the opposite end to the hook; this will warn you that the cable is on the last layer and that there are approximately 8 rounds left, 3 to reach the hazardous area.

The drum has been designed so that the cable does not completely unrolled due to the operator error, leaving two rolled turns. These two remaining turns may prevent the cable from coming free under load, but they do not resist the maximum force that the winch is designed for. If overlooked, the cable would be rolled in the opposite direction, and it might be seriously damaged.

Follow the hydraulic connection instructions on the overcenter valve, shown in the following figure, in order to obtain the desired rotating direction based on where the drum will collect the cable.

Pneumatic clutch installation

The pneumatic version of the clutch consists of a simple effect pneumatic cylinder. The air pressure for actuation should be between 6 and 8 bar. The body has a machined 1/8 BSP thread and the supplied quick connector is for 6×4 tube.

At the back part there is the piston vent and a switch (opened) that closes the circuit when the clutch shaft is not at its rest position, that is, it has not entered completely or that the pneumatic valve is at the disengaged position.

This switch should be used to close a circuit supplying a visual or acoustic signal; it can also be combined with the remote command to cancel the lifting function until the clutch is completely engaged.

Dark blue = Continuous
Light blue = Intermitent

Practice

The best way to prevent accidents and extend the life of all the winch components is to practice before using it. There are two parameters the operator can easily control while handling the winch: the collecting speed and the sound of the winch and the valves.

Get used to differentiating the cable speed depending on the layers rolled on the drum. The internal layers collect the cable at a slower speed. The cable speed should be practically the same working with or without load.

Get used to the sound of the winch itself (planetary gears) and of the hydraulic block (hydraulic distributor and pressure relief valve in the circuit).

Differentiate between working without a load and with light load, a very heavy load and a load exceeding the winch dragging capacity, which causes the cable to stop, even if the hydraulic distributor is activated. Use a pulley in this last case.

Free drum rotation

WARNING
Never perform this operation with the cable loaded.
This operation is necessary when the cable has to be manually and quickly unrolled without starting up the hydraulic circuit, as well as for maintenance tasks and installation of accessories.

DANGER
Leave at least 5 turns rolled on the drum to operate safely.

E40 Manual Clutch (Not available in Pick Up models)

C40 Manual Clutch (Not available in Pick Up models)

You have two options if the handle/lever does not return to its position:
– Pull the cable to rotate the drum.
– Activate the winch to reel in the cable, while fastening the cable at the same time; the drum will not rotate until the clutch does not return to its position.

Pneumatic clutch (E40)

Activate the pneumatic valve that commands the clutch; the acoustic / luminous warning described in section 2.7 will emit a signal.

Unrolling the cable may be done easily by manually pulling the hook. In order to re-engage the clutch, locate the pneumatic valve in the engaged position; the acoustic / visual alarm will stop its signal when the shaft is in the engaged position. If it does not return to this position, you may use the method described previously in the manual clutch section.

Reeling in the cable

DANGER
Never perform this operation if there are less than five turns of rolled cable on the drum.

WARNING
Do not roll the cable when it is loaded if the clutch is not fully engaged.

Activate the hydraulic distributor to the cable reel-in position.

Before moving the load, gently tighten the cable with slow and short movements in order to prevent sudden pulls that may exceed the maximum force of the winch for an instant in time.

Remember that the force needed to start moving a load is greater than to keep it moving.

Avoid short movements with constant stops with the cable under load.
If the load to be moved is very heavy, use the last layer to start moving it; this will generate more force, and prevent the upper layers from getting into the lower ones, ending up deformed (knots).

If the drum stops because the load exceeds the force developed by the winch, use a pulley (on the load) and connect the hook on a part of the chassis that is separate from the one used to assemble the winch.

Using a pulley doubles the pull force.

Avoid lateral pulling angles greater than 20º; use a pulley in these cases. If the length of the unrolled cable is more than 10 m, place a blanket, jacket, or something similar at approximately 2 m from the hook; this will partly prevent the cable from whipping in case of being released from the hook.

WARNING
Uneven rolling of the cable on the drum is not a big problem. Avoid rolling at one side of the drum; it might cause serious damage to the cable and the winch, which may ruin both of them.

In this case you should:

• Fasten the load, with the cable being under load.
• Release a little bit of cable.
• Check that the load does not move and release the hook. Unroll all the cable that was rolled unevenly on the drum.
• Roll it again in an orderly manner, following the instructions previously described for the cable installation.

Never try to guide the cable onto the drum with your hands when it is under tension.

Check the planetary gear housing temperature. You should be able to bear the temperature when touching the housing with your hand; if not, let it cool.

In order to stop the winch, place the hydraulic distributor in its center rest position.

Unrolling the cable under load

DANGER

Do not release the hook from the load until securing the load, and verifying that the cable is not under tension.

In order to unroll the cable under load, place the hydraulic distributor to the unrolling position. The overcenter valve controls the load descending speed. A slow and even descent is recommended instead of a fast one with constant stops; the load inertia may cause impact forces that are higher than the retaining forces developed by the winch.

WARNING

Perform all the maintenance operations with the winch stopped, without pressure in the hydraulic circuit and without tension on the cable.

Regular maintenance of the winch

Annual

Check the braking capability of the mechanical brake:

• Unscrew the end of the fitting over the overcenter valve.
  Be careful with the closing washer that seals the tube against the valve.
• Unscrew the bolts that fasten the hydraulic motor to the motor support.
• Remove the motor-overcenter valve assembly without moving the pilot fitting.
• Adjust the device Code 9030499 on the winch shaft, and apply a torque of 250 Nm; the shaft should not rotate. Otherwise, contact our after-sales service.

Change the oil lubricating the gears and the brake:

Capacity C40: 0,5 liters
Capacity E40: 0,3 liters
Capacity E35 PICKUP: 0,24 liters

Use oil to lubricate the gear reducers with EP additives and a viscosity index higher than 95, according to standard ISO 6743-6 CKC or DIN 51517 CLP. The viscosity grade will be chosen depending on the room temperature, according to the following table:

CAUTION

It is very important to follow all the steps in the following order.

• Unscrew the upper and lower plugs of the gear housing to empty the oil.
• Let all the oil drain completely.
• Screw in the lower plug again.
• Unscrew one of the lateral plugs to check the oil level when filling through the upper plug.
• Screw in the lateral plug and lastly the upper one.
  The plugs should be tightened to a torque of 30 Nm.

Monthly

Lubricate the manual clutch with oil. Engage and disengage it several times to complete the lubrication. Check that all the winch screws are tightened, including the ones fastening it to the chassis. Check the level of oil by unscrewing one of the lateral screws on the gear housing. If necessary, refill; follow the previous instructions.

Daily

Check that there are no oil leaks. Cable lubrication is very important. When the cable operates, the internal wires move and rub against each other; the external wires wear out by rubbing against the pulleys and drums.

The lubricant reduces the wear, internally and externally; it also protects against corrosion. Lubricate the cable following the manufacturer’s instructions (very viscous oil or very light grease with adhesive additives, such as molybdenum bisulfate is recommended) and check that it has been perfectly rolled, as indicated in section 2.6. Clean the outside of the winch. Do not use a water jet; it might damage the seals and watertight o-rings.

After each use

Verify the condition of the cable (see section 4.2) and the hook.
Roll the cable as indicated in section 2.6.

Cable inspection

Examples of permanent deformations for which the cable must be replaced.

Troubleshooting

CE Certificate of conformity

The company Bezares S.A. located at Avenida de las Retamas, 145, Polígono Industrial Monte Boyal, Casarrubios del Monte, Toledo, España C.P: 45950, declares under it’s sole responsability that the machine:

Meets all the requirements of the Directive 2006/42/CE (DOUE L-157. 09-06-2006) on machinery.

Authorised person, stablished in the community, to make the technical documentation:
Alberto López Torrecilla. Bezares S.A.

For the record and the relevant purposes Emilio Nunez certifies this as head representative of Bezares SA Casarrubios del Monte, Toledo, Spain, dated January 1, 2010.

Bezares S.A.
+34 918 188 297 • [email protected] • bezares.com
Avenida de las Retamas 145, Polígono Industrial Monte Boyal, Casarrubios del Monte, 45950, Toledo, España

Warranty information

All of our products are guaranteed against all manufacturing faults. The guarantee for use will be understood as for one year commencing from the date of the dispatch of the goods, with the reservation that the guarantee will depend on the treatment that the goods had received and will only be valid with a necessary report from our Technical Service Department.

The manufacturer will not be liable to pay any compensation for loss of profits or losses brought about by product defects beyond that stated in this same point in regard to the guarantee.

Returnings

In order to make any return of goods we must be advised in advance. Our warehouses will not accept any despatch of returned goods that are sent “Carriage Due” and/or not authorised by BEZARES, S.A. Returns will not be accepted after 30 days from the date of the delivery note.

1. All returned materials will be inspected by the materials reception department to decide on their state.
2. The material must be completely new, without having been used and that is currently on sale, this being that it is not obsolete.
3. It is absolutely necessary that any return is previously informed, and authorized by Bezares’s After-sales Department. Each package has to include inside, complete documentation explaining the reasons of the return, and the sticker outside, showing us “RETURN”. The forms and the stickers are included inside the packing of all Bezares products.
4. Consult refunds policies with our customer service department.

Liability

Bezares, S.A. will not be held liable under any circumstances for their use or the defective assembly of its products, for breakdowns caused by external agents, excessive loads, inadequate lubrication, defects that may appear in the fitting of gear boxes to used vehicles, or for any other cause or accident outside of its control.