Tigren Belt Drive Compressors User Manual

Tigren Belt Drive Compressors

Warning!
All identification data: manufacturer, model, code and serial number are printed on EC label stuck onto the last page of this manual.

Declaration of compliance EEC

The following declaration is attached to the compressor in original copy.

The manufacturer
Declares under its sole responsibility that the air compressor described below complies with the safety requirements of applicable directives.

KEY TO PRODUCT SAFETY SIGNS

Before use, read the handbook carefully
Warning, hot surfaces
Dangerous voltage
Danger – automatic control (closed loop)
Hearing, sight and respiratory protection must be worn
Preserve this handbook for future reference

TECHNICAL DATA: Please, refer to the label stuck onto the last page of this manual

Facsimile product identification plate

Legend

1. Manufacturer’s data
2. CE mark and WEEE symbol
3. Type / Code / Serial Number
4. Air displacement expressed in (l/min) and (cfm)
5. Air delivered by the compressor expressed in (l/min) and (cfm) 6 – Maximum operating pressure (bar and PSI), tank capacity (l), rotations per minute (RPM), weight (kg)
6. Guaranteed sound power level in dB(A); Measured sound power level in dB(A)
7. Electric data: voltage (V), frequency (Hz), absorption (A), power in (kW) and (HP)
8. Duty cycle
9. Declaration of origin
10. Year of production/manufacturing

Preserve this handbook for future reference

PRECAUTIONS

These compressors are not suitable for outdoor use.

THINGS TO DO

• The compressor must be used in a suitable environment (well ventilated with an ambient temperature of between +5°C and +40°C) and never in places affected by dust, acids, vapors, explosive or flammable gases.
• Always maintain a safety distance of at least 4 meters between the compressor and the work area.
• Any coloring of the belt guards of the compressor during painting operations indicates that the distance is too short.
• Insert the plug of the electric cable in a socket of suitable shape, voltage and frequency complying with current regulations.
• For 3-phase versions, have the plug fitted by a qualified electrician according to local regulations. When starting the compressor for the first time, check the correct direction of rotation and that this matches the direction indicated by the arrow on the belt guard (versions with plastic protection) or on the motor (versions with metal protection).
• Use extension cables with a maximum length of 5 meters and of suitable cross-section.
• The use of extension cables of different length and also of adapters and multiple sockets should be avoided.
• Always use the switch of the pressure switch to switch off the compressor or use the switch of the electric panel for models equipped with this. Never switch off the compressor by pulling out the plug in order to avoid restart with pressure in the head.
• Always use the handle to move the compressor.
• When operating, the compressor must be placed on a stable, horizontal surface to guarantee correct lubrication.
• Position the compressor at least 50 cm from the wall to permit optimal circulation of fresh air and to guarantee correct cooling.

THINGS NOT TO DO

• Never direct the jet of air towards persons, animals or your body. (Always wear safety goggles to protect your eyes from flying objects that may be lifted by the jet).
• Never direct the jet of liquids sprayed by tools connected to the compressor towards the compressor.
• Never use the appliance in your bare feet or with wet hands or feet.
• Never pull the power cable to pull the plug out of the socket or to move the compressor.
• Never leave the appliance exposed to adverse weather conditions (rain, sun, fog, snow).
• Never transport the compressor with the reservoir pressurized.
• Never weld or machine the reservoir. In the case of faults or corrosion, replace it completely.
• Never allow inexpert persons to use the compressor. Keep children and animals away from the work area.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.

START-UP AND USE

• Fit the supplied wheels as shown in figures 19 and 20. For versions with fixed feet, assemble the vibration-dampers if furnished (fig. 21).

• Check for correspondence between the compressor plate data with the actual specifications of the electrical system. A variation of ± 10% with respect of the rated value is allowed.

• Children should be supervised to ensure that they do not play with the appliance.

• Never position flammable or nylon or fabric articles close to and/or on the compressor.

• Never clean the compressor with flammable liquids or solvents.

• Clean with a damp cloth only, after making sure that you have unplugged the compressor.

• The compressor is designed only to compress air and must not be used for any other type of gas.
  The compressed air produced by the compressor cannot not be used for pharmaceutical, food or hospital purposes except after particular treatments. It is not suitable for filling the air bottles of scuba divers.

• Never use the compressor without guards (belt guard) and never touch moving parts.

THINGS YOU SHOULD KNOW

• To avoid overheating of the electric motor, this compressor is designed for intermittent operation as indicated on the data plate (for example, S3-50 means 5 minutes ON and 5 minutes OFF). In the case of overheating, the thermal cutout of the motor trips, automatically cutting off the power when the temperature is too high due to excess current take-off.

• To facilitate machine restart, it is important not only to carry out the operations indicated but also to set the button of the pressure switch, returning this to the OFF position and then ON again (figures 1a-1b).

• On single-phase versions, press the reset button on the terminal box of the motor (fig. 2).

• On 3-phase versions, operate manually on the button of the pressure switch, returning this to the ON position, or press the button of the thermal cutout inside the box of the electric panel (figures 3a-3b-3c).

• The single-phase versions are fitted with a pressure switch equipped with a delayed closing air vent valve (or with a valve located on the check valve) that facilitates motor start-up; therefore a few-second jet of air from this, with the reservoir empty, is to be considered normal.
  To guarantee machine safety, all the compressors are fitted with a safety valve that is activated in the case of failure of the pressure switch (fig. 4a-4b).

• All two-stage compressors are equipped with safety valves on the air delivery manifold to the reservoir and on the connection hose between the low and high pressure located on the head. These are activated in the case of malfunctioning (fig. 5).
  The safety valve is set to avoid over-pressurization of the air tanks. This valve is factory pre-set and will not function unless tank pressure reaches this pressure. Do not attempt to adjust or eliminate this safety device.
  Any adjustments to this valve could cause serious injury. If this device requires service or maintenance, see an Authorized Service Center.

• The red notch on the pressure gauge refers to the maximum operating pressure of the tank. It does not refer to the adjusted pressure.

• When connecting an air-powered tool to a hose of compressed air supplied by the compressor, interruption of the flow of air from the hose is compulsory.

• Use of the compressed air for the various purposes envisaged (inflation, air-powered tools, painting, washing with water-based detergents only, etc.) requires knowledge of and compliance with the rules established for each individual use.

• Please check that the air consumption and the maximum working pressure of the pneumatic tool and connection pipes (with the compressor) to be used, are compatible with the pressure set on the pressure regulator and with the amount of air supplied by the compressor.

• Supply hoses at pressures above 7 bar should be equipped with a safety cable (e.g. a wire rope).

• Insert the power plug in a suitable socket checking that the button of the pressure switch located on the compressor is in the “O” (OFF) position (figures 6a-6b-6c-6d).

• For the 3-phase versions, connect the plug to a panel protected by suitable fuses.

• For the versions fitted with electric panel (“Tandem” control units or delta/star starters) have installation and connections (to the motor, to the pressure switch and to the electro valve if any) carried out by qualified personnel.

• Check the oil level using the sight glass and if necessary unscrew the vent plug and top up. (figures 7a-7b).

• At this point, the compressor is ready for use.

• Operating on the switch of the pressure switch (or the selector for versions with electric panel), (figures 6a-6b-6c-6d), the compressor starts, pumping air in the reservoir through the delivery hose. On 2-stage versions, air is sucked into the so-called low pressure cylinder liner and recompressed. It is then routed, through the recirculation hose, into the so-called high pressure liner and then into the reservoir. With this work

• cycle, it is possible to reach higher pressure, with availability of air at 11 bar (15 bar for special machines).
  On reaching maximum operating pressure (factory-set during testing), the compressor stops, venting the excess air present in the head and in the delivery hose through a valve located under the pressure switch (in delta/star versions, through an electrovalve that is activated when the motor stops).

• The absence of pressure in the head facilitates subsequent restart. When air is used, the compressor restarts automatically when the lower calibration value is reached (approx. 2 bar between upper and lower). The pressure inside the reservoir can be checked on the gauge provided (fig. 4a-4b).

• The compressor continues to operate automatically with this work cycle until the position of the switch of the pressure switch (or of the selector of the electric panel) (figures 6a-6b-6c-6d) is modified. To use the compressor again, wait at least 10 seconds after this has been switched off before restarting.

• In the versions with electric panel, the pressure switch must always be aligned with the I (ON) position.

• In tandem versions, the control unit provided permits use of only one of the two compressor groups (if necessary alternatively) or of both at the same time according to requirements. In this second case, start-up will be differentiated slightly to avoid excessively high current take-off at start-up (timed starting).

• Only the wheel-mounted compressors are fitted with a pressure reducer (in the versions with fixed feet, it is usually installed on the use line). Air pressure can be regulated in order to optimize use of air-powered tools operating on the knob with the valve open (pulling it up and turning it in a clockwise direction to increase pressure and counterclockwise to reduce this) (fig. 8). Once you have set the value required, push the knob down to lock it.

• The value set can be checked on the gauge (for versions equipped with this, fig. 9).

• Please check that the air consumption and the maximum working pressure of the pneumatic tool to be used are compatible with the pressure set on the pressure regulator and with the amount of air supplied by the compressor.

• When you have finished working, stop the machine, pull out the plug and empty the reservoir.

MAINTENANCE

• The service life of the machine depends on maintenance quality.
• PRIOR TO ANY OPERATION SET THE PRESSURE SWITCH TO THE OFF POSITION, PULL OUT THE PLUG AND COMPLETELY DRAIN THE RESERVOIR.
• • Check that all screws (in particular those of the head of the unit) are tightly drawn up (fig. 10).
    The control must be performed before the first start-up of the compressor and subsequently before the first intensive use in order to restore the correct closing torque value modified as a result of heat expansion.

TABLE 1 – TIGHTENING OF HEAD TENSION RODS

| Nm Min. torque| Nm Max. torque
Screw M6| 9| 11
Screw M8| 22| 27
Screw M10| 45| 55
Screw M12| 76| 93
Screw M14| 121| 148

• Clean the suction filter according to the type of environment and in any case at least every 100 hours. If necessary, replace the filter (a clogged filter impairs efficiency while an inefficient filter causes harsher wear on the compressor (figures 11a – 11b-11c-11d).
• Change the oil after the first 100 hours of operation and subsequently every 300 hours. Check the oil level periodically.
• Use SAE 40. (For cold climates, SAE 20 is recommended). Never mix different grade oils. If the oil changes color (whitish = presence of water; dark = overheated), it is good practice to replace the oil immediately.
• After topping up, tighten the plug (fig. 12) making sure that there are no leaks during use. Once a week, check the oil level to assure lubrication in time (fig. 7a).
• Periodically (or after completing work if for more than an hour), drain the condensate that forms inside the reservoir due to the humidity in the air (fig. 13a-13b) in order to protect the reservoir from rust and so as not to restrict its capacity.

• • Periodically, check the tension of the belts which must have a flexion (f) of around 1 cm (fig. 14).
    TABLE 2 – MAINTENANCE

    FUNCTION| AFTER THE FIRST 100 HOURS|

EVERY 100 HOURS

|

EVERY 300 HOURS

Cleaning of intake filter and/ or substitution of filtering element| |

•

|
**Change of oil*| •| | •
Tightening of head tension rods**| The check must be carried out prior to the first

compressor starting.

Draining tank condensate| Periodically and at the end of work
Checking the tension of the belts| Periodically

• Spent oil and condensate MUST BE DISPOSED OF in compliance with protection of the environment and current legislation.

STORAGE

Pull the mains plug out of the socket and ventilate the appliance and all connected pneumatic tools. Switch off the compressor and make sure that it is secured in such a way that it cannot be started up again by any unauthorized person.

DISPOSAL

The compressor must be disposed in conformity with the methods provided for by local regulations.

WARRANTY AND REPAIR

In the event of defective goods or requirements for spare parts, kindly contact the sales point where you made your purchase.

POSSIBLE FAULTS AND RELATED PERMITTED REMEDIES

Request the assistance of a qualified electrician for operations on electric components (cables, motor, pressure switch, electric panel, etc).

Check valve does not perform its function correctly due to wear or dirt on the seal.

| Unscrew the hex-shaped head of the check valve, clean the housing and the special rubber disk (replace if worn). Re-assembler and tighten carefully ( figures 15a-15b ).
Condensate drainage cock open.| Close the Condensate drainage cock.
Rilsan hose not inserted correctly in pressure switch.| Insert the Rilsan hose correctly inside the

pressure switch ( fig. 16 ).

Reduction of efficiency, frequent start-up. Low

pressure values.

| Excessively high consumption.| Decrease the demand of compressed air.
Leaks from joints and/or pipes.| Change gaskets.

Clogging of the suction filter.

| Clean/replace the suction filter ( figures 11a-11b-11c-11d ).
Slipping of the belt.| Check belt tension ( fig. 14 ).

The motor and/or the compressor overheat irregularly.

| Insufficient ventilation.| Improve ambient conditions.
Closing of air ducts.| Check and if necessary clean the air filter.
Insufficient lubrication.| Top up or change oil

( figures 17a-17b-17c ).

After an attempt to start the compressor, it stops due to tripping of the thermal cutout caused by forcing of the motor.|

Start-up with head of the compressor charged.

| Release the compressor head by using the pressure switch push button.
Low temperature.| Improve ambient conditions.
Voltage too low.| Check that the mains voltage matches that of the dataplate. Eliminate any extensions.
Incorrect or insufficient lubrication.| Check level, top up and if necessary change the oil.
Inefficient electrovalve.| Call the Service Center.
During operation, the compressor stops for no apparent reason.| Tripping of the thermal cutout of the motor.| Check level oil.
Single-stage, mono-phase versions: operate on the button of the pressure switch returning this to the OFF position ( fig. 1a ). Reset the thermal cutout ( fig. 2 ) and restart ( figures 1b ).

If the fault persists, call the Service Center.

Versions with delta-star starter:
operate on the button of the thermal cutout located inside the box of the electric panel ( fig. 3c ) and restart ( fig. 6d ).

If the fault persists, call the Service Center.

Other versions:
Operate on the button of the pressure switch returning this to the OFF position and then to ON again ( fig. 1a-1b ).

If the fault persists, call the Service Center.

Electric fault.| Call the Service Center.
When operating, the compressor vibrates and the motor emits an irregular buzzing sound. If it stops, it does not restart although the sound of the motor is present.| Single-phase motors:
faulty capacitor.|

Have the capacitor replaced.

3-phase motors:
One of the phases of the 3-phase power supply is missing due probably to blowing of a fuse.| Check the fuses inside the electric panel or the electric box and if necessary replace those that have been damaged ( fig. 18 ).
Irregular presence of oil in the network.| Too much oil inside the unit.| Check oil level.
Wear on segments.| Call the Service Center.
Leaking of condensate from the vent cock.| Presence of dirt/grit inside the cock.| Clean the cock.

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