Wonder W3D1/24 User manual

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AIR COMPRESSOR
OPERATION MANUAL
PLEASE FAMILIARISE YOURSELF WITH THE OPERATION
MANUAL FIRST BEFORE OPERATING THE AIR COMPRESSOR

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IMPORTANT NOTICE
THINGS TO DO BEFORE OPERATING YOUR NEW
COMPRESSOR FOR THE FIRST TIME.
1. On the top front of the compressor you will find a white plastic
shipping plug inserted into the Oil Filler Hole. Remove the
shipping plug and replace by pressing the red Oil Filler Plug
(supplied in the parts bag) into the Oil Filler Hole.
2. Also supplied in the parts bag you will find an Air Breather
Assembly. Screw the assembly into the hole on the side and at
the top of the Compressor Head.
3. Using the Sight-Glass built into the lower front area of the
Compressor (just behind the Regulator), check the oil level. It
should be at the halfway mark on the Sight-Glass for normal
operation. If it is necessary to add oil, please use any standard
air compressor oil available at major retailers.
4. There are two Air Outlet Fittings on the Regulator. Air flow for
one fitting is operated by turning the Regulator handle. The
other is a free flow directly from the tank. Screw either a metal
cap or a quick coupler (not supplied) onto the free-flowing
fitting before starting the Compressor. Use nylon-seal taper
when working with air fittings to prevent leakage.

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Contents
1 Introduction
2 Safety Guidelines
3 Brief Description
4 General View and Main Components
5 Main Technical Parameters
6 Preparation for Starting
7 Operation and Adjustment
8 Cautions
9 Maintenance
10Troubles and Remedies
11Parts Illustration
12List of Goods

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1INTRODUCTION
Read this manual carefully before operating or servicing this air compressor to familiarise
yourself with proper safety operation and maintenance procedures. FAILURE TO COMPLY
WITH INSTRUCTIONS IN THIS MANUAL COULD RESULT IN PERSONAL INJURY, PROPERTY
DAMAGE AND/OR VOIDING OF YOUR WARRANTY. Following the instructions in this manual
will provide a longer and safer service life for your air compressor.
2SAFETY GUIDELINES
DANGER –AN IMMEDIATE HAZARD THAT WILL
CAUSE SERIOUS INJURY OR LOSS OF LIFE.
1. TO REDUCE THE RISK OF FIRE OR EXPLOSION. NEVER SPRAY FLAMMABLE LIQUIDS IN
A CONFINED AREA.It is normal for the motor and pressure switch to produce sparks
while operating. If sparks come into contact with vapours from gasoline or other
solvents, they may ignite causing fire or explosion. Always operate the compressor in
a well-ventilated area. Do not smoke while spraying. Do not spray where sparks or
flames are present. Keep the compressor as far away from the spray area as possible.
2. The solvents Trichloroethane and Methylene Chloride can chemically react with
Aluminium used in paint spray guns, paint pumps etc, and cause an explosion. If you
are using these solvents, use only stainless-steel spray equipment. This does not affect
your air compressor, but many affect the equipment being used.
3. Never directly inhale the compressed air produced by the air compressor. It is not
suitable for breathing purposes.
WARNING –A POTENTIAL HAZARD THAT COULD
CAUSE SERIOUS INJURY OR LOSS OF LIFE.
1. Do not weld on the air tank of this compressor. Welding on the air compressor tank
will affect the strength and cause an extremely hazardous condition. Welding on the
tank in any manner will void the warranty.
2. Never use an electric air compressor outdoors when it is raining or on a wet surface,
as it may cause an electric shock.
3. ALWAYS shut off the compressor, remove the plug from the outlet, and bleed all
pressure from the system when the compressor is not in use or before servicing.
4. Check the manufacturer’s maximum pressure rating for air tools and accessories.
Compressor outlet pressure must be regulated so as to never exceed the maximum
pressure rating of the tool.
5. High temperatures and moving parts are present under the shroud. To prevent burns
or other injuries, DO NOT operate with the shroud removed. Allow the compressors
parts to cool before handling or servicing,

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6. Be certain to read all labels when you are spraying paints or toxic materials and follow
the safety instructions. Use a respirator mask if there is a chance of inhaling anything
you are spraying. Read all instructions and be sure that your respirator mask will
protect you.
7. Always wear safety goggles or glasses when using an air compressor. Never point any
nozzle or sprayer towards a person or any part of the body.
8. Do not adjust the pressure switch or relief valve for any reason. Doing so will void all
warranty. They have been pre-set at the factory for the maximum pressure of this unit.
CAUTION –A POTENTIAL HAZARD THAT MAY CAUSE
MODERATE INJURY OR DAMAGE TO EQUIPMENT.
1. Drain the moisture from the tank daily. A clean/dry tank will help prevent corrosion.
2. Pull the pressure relief valve ring daily to ensure that the valve is functioning properly
and to clear the valve of any possible obstructions.
3. To provide proper ventilation for cooling, the compressor must be kept a minimum of
31cm (12 inches) from the nearest wall, in a well-ventilated area.
4. Fasten the compressor down securely if transporting is necessary. Pressure must be
released from the tank before transporting.
5. Protect the air hose and electric cord from damage and puncture. Inspect them weekly
for weak or worm spots and replace if necessary.
WARNING
CAUTION!
DISCONNECT POWER AND RELEASE ALL
PRESSURE FROM THE SYSTEM BEFORE
ATTEMPTING TO INSTALL, SERVICE,
RELOCATE OR PERFORM ANY
MAINTENANCE.
Never use an extension cord with this
product. Use additional air hose instead of an
extension cord to avoid power loss and
permanent motor damage. Use of an
extension cord voids the warranty.
1. Follow all local electrical and safety
codes as well as National Electrical
Codes (NEC) and Occupational Safety
and Health Act (OSHA).
2. Electric motors and starters must be
securely and adequately grounded
using a three-pronged Outlet.

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3BRIEF DESCRIPTION
This micro air compressor is of novel design and excellent workmanship. Having the
advantages of compact construction, fine appearance, light weight, easy operation, high
safety and low noise, it can be widely used in machinery, chemical industries, spray and
decoration, automatic control system and other fields where compressed air is required.
4GENERAL VIEW AND MAIN COMPONENTS
1. Main Compressor
2. Pressure Switch
3. Outlet Valve
4. Regulating Valve
5. Pressure Gauge
6. Drain Cock
7. One-way Valve
8. Wheel
9. Discharge Pipe
10. Air Tank
11. Fan Cover
5MAIN TECHNICAL
PARAMETERS
Model
W3D1/24
W3D1/55
Power
3HP
3HP
Voltage
220-240V
Frequency
50Hz
Current
7.5A
Rated Speed
2850 RPM
Discharge
198L/min (7 cfm)
Max. Working Pressure
115 psi (7.9 Bar)
Tank Capacity
24L
50L
Net weight
26kg
35kg
Dimensions (L x W x H)
62.5x 29 x 62 cm
72.5x 33 x 71.5 cm

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6PREPARATION FOR STARTING
1. The working environment for the compressor should be clean, dry and ventilated.
2. Keep the use voltage within ±5% of rated voltage.
3. Keep the oil level within the red circle leveller.
4. The recommended compressor oil is SAE30 or L-DAB 100 in ambient temperatures over
10°C and use SAE10 or L-DAB 68 for ambient temperatures below 10°C.
5. Open the outlet valve, set the knob of pressure switch in position ON. Let the compressor
run 10 minutes with no load to ensure lubricating the moving parts before regular service.
7OPERATION AND ADJUSTMENT
1. The compressor is controlled by the pressure switch under normal working conditions. It
automatically stops as pressure reaches the maximum and will restart as pressure
decreases to the minimum. The rated pressure has been set at the factory so please do
not adjust it. As soon as the motor is switched off, the compressed air in the discharge
pipe should be released through the release valve under the switch. This is the necessary
condition for restart otherwise the motor will be damaged. The rated pressure can be
adjusted by turning the adjusting bolt of the switch. Contact us first before considering
adjusting the rated pressure.
2. The outlet pressure of compressed air can be adjusted by the regulating valve.
3. When the compressor is running and needs to be turned off. Only set the knob of
pressure switch in position OFF.

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8CAUTIONS
1. Take the cover off first and put on the air filter before running the air compressor.
2. Never unscrew any connecting parts when the tank is in pressure conditions.
3. Never touch or disassemble any electrical parts before disconnecting the power plug.
4. Never adjust the safety valve carelessly.
5. Never use the compressor in place where voltage is too low or too high.
6. Never use an electrical wire that is more than 5m long with less than the section shown
in Table 1.
7. Never disconnect the plug to stop the compressor from running. Set the switch knob to
the OFF position instead.
8. If the release valve doesn’t work as the motor has stopped, find the cause immediately so
as not to damage the motor.
9. Lubricating oil must be clean, and the oil level should be kept in the red circle leveller.
10. Disconnect the plug to cut off the power supply and open the outlet valve.
Motor output
(HP/kW)
220V / 230V / 240V Single Phase
110V / 120V Single-Phase
Wire (mm²)
Fuse (A)
Wire (mm²)
Fuse (A)
1.0/0.75
1.5
16
2.0
20
1.5/1.1
1.5
16
2.5
20
2.0/1.5
1.5
16
2.5
20
2.5/2.0
2.0
20
2.5
20
9MAINTENANCE
1. Clean the crankcase and renew the lubricating oil after the first 10 working hours.
2. Clean the oil level after every 20 working hours and replenish if necessary.
3. Open the drain cock under the tank to exhaust condensate after every 60 working hours.
4. Clean the crankcase and renew the oil, clean the air filter and check the safety valve and
pressure gauge.

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10 TROUBLES AND REMEDIES
Trouble
Possible Causes
Remedies
Motor not running,
running too slow or
getting hot
(1) Fault in the lead or
voltage is insufficient
(2) Power cable is too thin
or too long
(3) Fault in the pressure
switch
(4) Fault in the motor
(5) Sticking of the main
compressor
(1) Check the lead and your
electrical circuit
(2) Replace the cable
(3) Repair or replace
(4) Repair or replace
(5) Check and repair
Sticking of main
compressor
(1) Moving parts burnt due
to the oil being
insufficient
(2) Moving parts damaged
or struck by a foreign
body
Check the crankshaft, bearing,
connecting rod, piston, piston
rings etc and replace if
necessary.
Shaking or abnormal
noise
(1) Parts are loose
(2) A foreign body may
have gotten into the
compressor
(3) Piston knocking the
valve seat
(4) Moving parts seriously
worn
(1) Check and retighten
(2) Check and clean away any
foreign materials
(3) Replace it with a thicker
paper gasket
(4) Repair or replace
Pressure insufficient or
discharge capacity
decreased
(1) Motor running too slow
(2) Air filter choked up
(3) Leakage of safety valve
(4) Leakage of discharge
pipe
(5) Sealing gasket is
damaged
(6) Valve plate is damaged
or there is carbon build-
up
(7) Piston ring and cylinder
worn or damaged
(1) Check and remedy
(2) Clean or replace the cartridge
(3) Check and adjust
(4) Check and repair
(5) Check and replace
(6) Replace and clean
(7) Repair or replace
The oil consumption is
too excessive
(1) Oil level is too high
(2) Breath pipe choked up
(3) Piston ring and cylinder
worn or damaged
(1) Keep the level within the red
circle
(2) Check and clean
(3) Repair or replace

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11 PARTS ILLUSTRATION