Greeloy GM1600 Air Compressor Motor User Manual

Greeloy GM1600 Air Compressor Motor

Thank you for purchasing our Silent Oil Free Air Compressor, one of the best in the industry for low-noise air compressors with clean air. This product is manufactured to high-quality standards and it is safe and fit for purpose at the time of sale, but all tools can be dangerous if the correct precautions are not taken.

Warning!
When using compressors, basic safety precautions should be always followed to reduce the risk of fire, electric shock, and personal injury. Read all these instructions before attempting to operate this product. Keep these instructions with the compressor. Save these instructions for future reference.

Personal Safety

Symbols used on the air compressor.

Read this manual
To ensure working safety read this manual and thoroughly understand how to turn the compressor on and off and to control the airflow.

Operational Safety

Do not eat, drink, or smoke in the work area. Do not eat, drink, or smoke while using this machine or in the work area. Do not touch the compressor cylinder head. During operation, the cooling fins of the cylinder head and the braided air pipe will become very hot. Even after using these will remain hot for some time. Avoid coming into contact with these. Do not leave inflammable objects near the compressor.

Do not let children or pets in the work area.
Do not let children or pets come into contact with the compressor, high- pressure hose, air tools, main cable, or work area.

Do not use the product for excessive periods.
It will work better and safer at the rate for which it was intended. See section 5 Maintenance, Care, and Repair Please note that these compressors are designed for dental apparatus, medical care, laboratory equipment, scientific research, industrial production, and daily life.

Do not abuse the hose/cable
Never pull the compressor by the air hose or electrical cable. Keep the hose/cable away from heat and sharp edges. Do not touch the metal plug pins when connecting or removing the electrical plug.

Do not run the compressor in damp conditions.
The compressor should never be used in an area where it could be exposed to water or excessively damp conditions.

Do not make any alterations to the air tank
The air tank is made to conform to the relevant European safety standards and under no circumstances should the air tank be altered by welding or any other means.

Disconnect the compressor from the power supply when maintaining.
Before carrying out any maintenance on the compressor. Always switch off and unplug the compressor from the power supply. Ensure that all the compressed air has been released from the air tank.

Maintenance of electrical components
You must ensure that a suitably qualified person carries out repairs and maintenance of electrical components.

Avoid unintentional starting of the compressor.
When the machine is not in use please depress the pressure switch, to ensure that it doesn’t start up unexpectedly.

WARNING! Use recommended high-pressure hoses and couplings
High-pressure hoses, fittings and couplings are important for the safety of the appliance. Use only hoses, fittings, and couplings designed for usage with air compressors. If in doubt please consult the local dealer.

Before disconnecting the air hose from the compressor
For safety close the pressure switch and discharge residual pressure in the air hose before disconnecting.

Guard against electric shock
Use an RCD (residual current device) to protect against electrical shock.

Before moving the compressor
The compressor air tank must be discharged before the machine is transported.

Keep the work area clean
Cluttered areas invite injuries.

Setting up the Compressor

Important
Use the compressor only for the purpose for which it was designed. The compressor is designed for use under its airflow capacity; do not attempt to use it exceeding its technical specifications. The manufacturer assumes no responsibility for any damages resulting from improper use or non-compliance with the instructions described in this manual. The compressor is for use by competent persons only.

Before Operation
Check package contents

Check for damage
Before using this item check each part is undamaged. Check all pipes are firmly connected. Inspect the air tank to ensure that it has not been damaged.

Save packaging
Save major packaging for the return of product in the event of service or repair.

Electrical supply
Before using the air compressor please check that you have a suitable electrical supply to support the requirements of the motor unit. Please ensure your mains power supply corresponds to the power rating on the data label on the machine.

Electrical Cables
Ensure that all cables are damage free before connecting to the power supply.

Using extension cables
Use an extension cable, which is no more than 10metres long and has a conductor cross-section of at least 1.5mm2 i.e. a heavy-duty cable. Using an excessively long or thin-wired extension cable will cause severe damage to the motor. Always fully unwind extension cables. If using extension cables outdoors always use a cable that is marked for outdoor use.

Always maintain a clear area around the compressor
The compressor must be well positioned to ensure there is adequate airflow around the machine. The compressor should be well situated to ensure it has 50cm of space free of obstacles around its air tank and motor.

Ensure that the compressor draws clean air
For the correct function and longevity of your air compressor, the air that is drawn into the compressor must be clean. The compressor should not be used in an area where the air is contaminated with dust.

Place the compressor on flat ground
Ensure that the compressor is placed on the ground, which is flat and does not have an incline greater than 15o. If the compressor is placed at an angle greater than 15o in any direction, damage to the motor will result. Do not operate the compressor without the air filter installed. Operating the compressor without the air filter will cause severe damage to the motor.

Cleaning
Clean the items with a soft brush or a wiper moistened with a suitable biodegradable solvent. Do not use inflammable liquids like petrol or alcohol, they are a fire risk and will damage the finish and plastic parts. Ensure that the cooling fins on the motor are kept clean. Fins that are heavy with dust, have poor cooling properties and the motor will be overheated and damage will occur.

Faults
Have the air compressor repaired by a competent person. Use only genuine replacement parts, which are available from the authorized dealer or distributor. Do not use modified or non-genuine parts.

Maintain air compressor with care
Keep the air compressor clean for better and safer performance. Follow instructions for changing accessories. Inspect the air compressor and extension cables/hoses occasionally. Have them repaired by a qualified person or authorized service body.

Check for damaged parts.
Do not use the air compressor with damaged parts, before further use the air compressor must be carefully checked by a qualified person to determine that it will be operated properly. Check the breakage of parts, mountings, and other conditions that may affect its operation. An authorized service center should properly repair a damaged part unless indicated otherwise in the instruction manual.

Brief introduction

Silent oil-free air compressor features: a compact structure, stable performance, large flow rate, easy operation, and maintenance. Particularly the machine can not contain any oil fume. Because the air for dental apparatus must not contain any oil, this machine can be used as an independent air supply machine for dental therapeutic apparatus. It also can be used in other areas such as medical care, laboratory equipment, scientific research, industrial production, and daily life where clean air is demanded. The structure of the silent oil-free air compressor is shown in the attached file Fig.1. All units in the machine sit on a cylindrical pressure vessel called an air tank. The motor is the main part of the air compressor. A motor drives directly the eccentric wheel-connecting system making the piston move reciprocally. The piston is made from high temperature-resistant and abrasion- resistant non-metal material and can work without lubrication for a long time. Compressed air discharge enters in the air tank; a pressure gauge displays the pressure in the tank. When the pressure inside rises to 8 Bar, power is automatically cut off by a pressure switch, the compressor is shut off. When the pressure inside decreases to 5 Bar, power is turned on by the pressure switch and the compressor starts again and the pressure in the tank gradually rises again. This happens repeatedly. In addition, a check valve, drain valve, safety valve, and solenoid valve are installed on the air tank.

Transportation and storage

The machine should be transported and stored in the following conditions:

• Ambient temperature: -40℃~55℃
• Relative humidity: ≤95%
• Atmosphere pressure : 500Hpa-1060Hpa

Installation, test, and operation

Installation

• The machine should be operated in a room with a temperature of 5- 40℃ and relative humidity not greater than 80%. The surrounding area of the machine should be clean, dry, free of corrosive gas, well-ventilated, and indirect sunlight.
  • Note: A special power line for the machine is recommended with short circuit protection and a reliable grounding device.
  • After unpacking check the machine for any missing parts and damages, check accessories and spare parts, and technical documents supplied together with the machine according to the packing list.
  • Take off the air inlet nut, install the air intake, and keep the pipe facing down.
  • Connect the air supply pipe with the quick coupling
  • Check if the drain valve is off and the pressure switch is at the position of “off” (switch off position) Electrical connection: check if the power supply is normal. Insert the plug of the machine into the power supply socket. Installation of the machine is completed.
• Test run of the machine
  • Close the drain valve and air outlet ball valve. Turn the operation handle of the pressure switch to “ON” and the machine will start immediately. The reading of the pressure gauge will slowly rise with increasing pressure inside the air tank. When the reading of the pressure gauge reaches 8 Bar, the pressure switch activates, the power supply is cut off, the machine stops running. At the same time, the solenoid valve activates to release high pressure in the cylinder of the motor so that the machine can be started again.
  • During the period when the machine stops running observe if the reading of the pressure gauge is decreasing. If there is no leakage of air in the machine, open the air outlet valve to begin supply of compressed air. When the pressure in the air tank decreases to 5 Bar, the pressure switch resets and power supply resumes, the machine starts running again. The pressure in the air tank increases again. If the machine can automatically stop and start, the machine works normally.
  • Turn the operation handle for the pressure switch to the “off” position (switch off position), then pull out the plug of the machine. Test run is completed.
• Operation
  • To operate oil free air compressor correctly and safely, read carefully this operation instruction.
  • Insert the plug of the machine in the power socket of single-phase 10A/16A/20A . Open the air outlet valve, turn the operation handle of the pressure switch to the “ON” position, and the machine will run in normal condition.
  • Note: A suitable type of air compressor should be selected based on air consumption.

Maintenance

Draining of air tank
The frequency for draining depends on environmental conditions and operation time, but usually once every 2-3 days. The way to drain off the condensate water is as follows:Put the drain pipe which connects with the drain valve quick coupling in a container, with compressed air in the air tank slowly turns counter clockwise the knob on the drain valve to drain off the water in the air tank until all accumulated water comes out from the pipe. After that turn tightly clockwise the knob to ensure no leakage.

Change of air filter core
An air filter is installed on the air inlet of the motor to prevent the dust in the air from entering the air compressor and reduce noise. After being used for a period of time the filter core in the air filter will get clogged. In a result sucking capacity of the air compressor will be reduced,therefore the filter core must be replaced regularly. The way of replace is as follows: open the lid on the air filter, take out the old filter core, put in a new one, and then close the lid.

Adjustment of the pressure switch
A pressure switch is used for controlling the stop and start of the air compressor to ensure correct pressure of compressed air in the air tank. If the pressure of compressed air in the air tank is found not to be in the range set by the manufacturer (range: the pressure at which the air compressor will stop running is 8 Bar +/-0.2 Bar; the pressure at which the air compressor will restart running is 5 Bar +/-0.2 Bar) the pressure switch must be adjusted again to set correct range. The way to adjust is as follows. Open the casing for the pressure switch; adjust the setting screw for maximum pressure (turning clockwise makes activation pressure higher, so the pressure at which the air compressor stops running will be higher) and the setting screw for pressure difference (turning clockwise makes larger pressure difference, that is, the difference between the pressure at which the air compressor starts and stops will be larger) respectively. Careful adjustment will make the activation pressures the same as the range set by the manufacturer.

Quality Inspection List

Split-up drawing of motor and maintenance

head
5 Connecting rod| 13 Screw of plate valve| 21 Connecting pipe
6 Piston ring| 14 Fix plate| 22 Holder of aluminum alloy
7 Plate| 15 Air outlet valve|
8 Screw of plate| 16 Air inlet valve|

Maintenance procedures

1. Make notes and stick label for the direction of air inlet and outlet in order to rebuild in the cylinder head.
2. Take off the screw of the cylinder head and cylinder head.
3. Take the gasket of the cylinder jacket from the cylinder head.
4. Take off the cylinder plate valve.
5. Take off the cylinder jacket, plate, and piston ring.
6. Check the quality of the gasket of the cylinder head, piston ring, cylinder jacket, gasket of cylinder jacket, air outlet valve and air inlet valve, and find out the broken parts.
7. Clear the scrap on the plate with the water-solubility impregnant.
8. Put the piston ring in the connecting rod, and then cover the plate.
9. Re-fix the piston ring, glue the screw of the plate and turn tightly.
10. Cover the piston ring with the cylinder jacket carefully, you need incline the cylinder jacket to avoid damaging the piston ring.
11. Put the air inlet and outlet valve, and fix the plate in the original place.
12. Glue the screw of the valve and turn it tightly.
13. Install the gasket of the cylinder jacket to the bottom of the plate valve and place the plate valve on the cylinder jacket. Make sure the cylinder jacket is correctly equipped in the gasket of cylinder jacket.
14. Check the air direction of the inlet and outlet is correct.
15. Put the gasket of the cylinder head on the flute of the cylinder head.
16. Cover the plate with the cylinder head, and keep the correct direction of air inlet and outlet again.
17. Tie up the screw of the cylinder head.

Packing list

1. Air compressor, 1pc;
2. Brochure, 1pc
3. Air intaker, 1pc
4. https://www.alandental.com

References

• Dental Instruments Australia |Dental Equipment Supplies For Sale - Alandental.com

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