Clarke RANGER 8/50 Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
GC0522 - ISS 4
ORIGINAL INSTRUCTIONS
50L AIR COMPRESSOR
MODEL NO: RANGER 8/50
PART NO: 2242025

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INTRODUCTION
Thank you for purchasing this CLARKE 50L Air Compressor.
Read this manual fully before use and follow the instructions carefully. In doing
so you will ensure the safety of yourself and those around you and you can
look forward to your purchase giving you long and satisfactory service.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.

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SAFETY PRECAUTIONS
Before using your compressor it is in your own interest to read and pay attention
to the following safety rules.
1. Compressed air is dangerous. Do not point a jet of air at persons or animals
and do not discharge compressed air against the skin.
2. DO NOT operate your compressor with the guard removed.
3. Repairs must only be carried out by a qualified engineer. If problems occur,
contact your nearest Clarke dealer.
4. Before carrying out any maintenance, make sure that the pressure is
released from the air tank and that the compressor is disconnected from
the electrical supply.
5. DO NOT leave pressure in the receiver overnight, or when transporting.
6. DO NOT adjust or tamper with the safety valves. The maximum pressure is
factory set, and clearly marked on the compressor.
7. DO NOT operate in wet or damp conditions. Keep the compressor dry at all
times. Similarly, clean air will allow the compressor to work efficiently. Do
not use in dusty or otherwise dirty locations.
8. Some of the metal parts can become quite hot during operation. Do not to
touch these until the compressor has cooled down.
9. Always set the pressure regulator to the recommended setting for the tool.
10. When spraying flammable materials e.g. cellulose paint, ensure that there
is sufficient airflow and keep clear of any source of ignition.
11. Before spraying any material always consult paint manufacturers
instructions for safety and usage.
12. Protect yourself. Goggles will protect your eyes from flying particles. Face
masks will protect you against paint spray and fumes.
13. DO NOT apply strain to electrical cables and make sure that air hoses are
not kinked or wrapped around the compressor.
14. When disconnecting air hoses or other equipment from your compressor,
make sure that the air supply is turned off at the outlet and vent all
pressurised air from within the tank and other equipment attached to it.
15. Make sure that children and animals are kept well away from the
compressor and any equipment attached to it.
16. Make sure that all individuals using the compressor have had the necessary
training and have read and fully understand these operating instructions.

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17. Make sure that any equipment or tool used in conjunction with your
compressor has a safe working pressure exceeding that of the compressor.
18. Be careful when transporting the compressor to prevent tipping over
19. Permanently installed systems must be installed by a competent engineer.
20. These compressors produce noise levels in excess of 70dB(A). Persons
working near the compressor must be supplied with ear protection.
SAFETY SYMBOLS
Read this instruction booklet carefully before positioning,
operating or adjusting the compressor.
This compressor contains surfaces which may reach a high
temperature during operation. Never operate with the
motor housing removed.
Wear safety goggles when using this compressor
Wear ear protectors when using this compressor
This compressor produces a high sound level during
operation. Ear protection should be worn.

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ELECTRICAL CONNECTIONS
Connect the mains lead to a standard, 230 Volt (50Hz) electrical supply
through an approved 13 amp BS 1363 plug, or a suitably fused isolator switch.
If the plug has to be changed because it is not suitable for your socket, or
because of damage, it must be removed and a replacement fitted, following
the wiring instructions shown below. The old plug must be discarded safely, as
insertion into a power socket could cause an electrical hazard.
If the colours of the wires in the power cable do not agree with the markings
on the plug:
• The BLUE wire must be
connected to the
terminal marked N or
coloured black.
• The BROWN wire must
be connected to the
terminal marked L or
coloured red.
• The YELLOW AND
GREEN wire must be
connected to the
terminal marked E or
or coloured green.
We strongly recommend that this machine is connected to the mains supply
through a Residual Current Device (RCD)
If you are not sure, consult a qualified electrician. DO NOT try to do any
repairs.
WARNING: READ THESE ELECTRICAL SAFETY INSTRUCTIONS
THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE MAINS
SUPPLY.
WARNING: THE WIRES IN THE POWER CABLE OF THIS PRODUCT ARE
COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:
BLUE = NEUTRAL BROWN = LIVE YELLOW AND GREEN = EARTH
Plug must be BS1363/A approved.
Always fit
Ensure that the outer sheath of
Neutral
(Blue)
Live
(Brown)
Earth
(Green and
a 13 Amp
the cable is firmly held by the clamp
fuse.
Yellow)

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ASSEMBLY
ATTACH THE WHEELS
Use a spanner to attach the wheels
to the compressor.
Use the washers and spring washer in
the positions shown.
ATTACH THE FEET
Insert the feet into the position shown.
ATTACH THE AIR FILTER
1. Screw the air filter into position.
• The air filter must be hand tight
only.

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INSTALL THE OIL FILLER CAP
1. Remove the travel plug.
2. Insert the oil breather cap.
MOVING THE AIR COMPRESSOR
• Stop the compressor and disconnect it from the power supply
before you move it.
• Always use the handle.
• To prevent damage, do not lift by (or put strain on) valves or hoses.
CAUTION: THE COMPRESSOR IS HEAVY AND REQUIRES TWO PEOPLE TO
LIFT SAFELY.

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BEFORE USE
Before you connect your compressor to the power supply, check the
following:-
• Set the ON/OFF switch to the
OFF position (pushed down).
• Make sure that the compressor
is on level ground.
• Make sure that the supply
voltage matches the voltage
shown on the data label.
CHECK THE OIL LEVEL
1. Make sure that the oil level is half
way up the oil sight glass.
2. If not, remove the oil cap and
add oil to the tank.
• Only use SAE30 compressor oil,
available from your Clarke
dealer.
• Only fill to the half way point on
the sight glass, Overfilling may
result in damage.

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OPERATION
If the compressor has not been used for more than 24 hours, open the drain
valve on the bottom of the tank and drain any condensate which has
collected. See page 11.
ATTACHING AIR TOOLS
1. Attach the air hose to one of the
¼" BSP outlet valves.
2. Attach the tool to the end of the
air hose.
3. Turn the outlet valve handle to the
open position.
NOTE: The outlet valve is shown
without the air hose
attached for clarity.
TURNING THE COMPRESSOR ON
1. Connect the compressor to the
power supply.
2. Lift the On/Off button.
• The compressor will operate
until the tank is fully pressurised.
It will then stop.
• The compressor will start up
again when the pressure in the
tank decreases below a pre-set
value.
WARNING: BEFORE CONNECTING AIR TOOLS, MAKE SURE THAT YOU
READ THE INSTRUCTIONS SUPPLIED WITH THE TOOL, ALSO ENSURE THAT
THE TOOL IS SUITABLE FOR USE WITH THE COMPRESSOR AND HOSE
SPECIFICATIONS.

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SET THE OUTPUT PRESSURE
1. Use the pressure regulator to set
the output pressure of the outlet
valves.
• Turn clockwise to increase the
pressure.
• Turn counterclockwise to
decrease the pressure.
GAUGES
1. The tank pressure gauge shows
the current pressure in the tank.
2. The outlet pressure gauge shows
the ‘user set’ outlet pressure. This
can be adjusted as shown above.
REMOVE TOOLS FROM THE AIR HOSE
1. Push down on the On/Off button
to stop the compressor.
WARNING: ALWAYS SET THE PRESSURE REGULATOR TO ZERO BEFORE YOU
REMOVE OR REPLACE A TOOL.

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2. Turn the outlet valve handle to the
closed position.
3. Operate the tool to depressurise
the air hose.
4. Disconnect the tool from the hose.
TURN THE COMPRESSOR OFF
1. Follow steps 1-3 above.
2. Disconnect the compressor from
the power supply.
3. Slowly open one of the outlet
valves to depressurise the tank.
• You will hear a hissing sound as
the tank depressurises.
•Do not leave the compressor
unattended if the tank is
pressurised.
DRAINING THE TANK
1. Turn the compressor off and
disconnect it from the power
supply.
2. Put a container below the drain
valve to collect the condensate.
3. Slowly open one of the outlet
valves to depressurise the tank.
• You will hear a hissing sound as
the tank depressurises.
•Do not leave the compressor unattended if the tank is pressurised.
4. Open the drain valve slowly.
• Condensation will drain from the tank.
CAUTION: YOU MUST DRAIN THE MOISTURE FROM THE TANK AFTER EACH
DAYS USE AND BEFORE YOU PUT YOUR COMPRESSOR INTO STORAGE.

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5. Close the drain valve when the tank has fully drained.
RESET BUTTON
This compressor has a thermal
overload device.
If the motor gets too hot, the thermal
overload device cuts the power
which prevents damage to the motor.
If the thermal overload device
operates, let the motor cool down for
5 minutes and push the reset button.
If you start the compressor and the
overload cutout operates again, stop
the compressor and disconnect from the power supply and have your
compressor examined by a Clarke service agent.

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MAINTENANCE
CHECKING THE OIL LEVEL (DAILY)
1. Make sure that the oil level is half
way up the oil sight glass.
2. If not, remove the oil breather cap
and add oil to the reservoir.
• Only use SAE30 compressor oil,
available from your Clarke
dealer.
DRAIN THE TANK (DAILY)
After use, always open the drain valve to make sure that any condensate is
drained off.
CLEAN THE AIR FILTER (MONTHLY)
The air filter must be examined monthly,- more often in dusty conditions,
1. Remove the filter cover from the
filter.
2. Remove the filter from the filter
cover.
3. Use a soft brush to clean the
sponge and the filter cover.
• Clean the filter in warm soapy
water if necessary.
• Rinse and let the filter dry
completely before refitting.
4. Make sure that the filter and filter
cover are replaced into position.
• If the filter is damaged you must replace it.

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CHECK THE NON-RETURN VALVE (EVERY 6 MONTHS)
If the tank pressure decreases for no apparent reason, it is possible that the
non-return valve is leaking. To check,
1. Make sure that the tank is not
under pressure and the
compressor is switched OFF.
2. Examine the non-return valve,
and replace the gasket and valve
if necessary.
CHANGING THE OIL
1. Switch off the compressor and disconnect from the mains supply.
2. Release any air pressure in the hoses.
3. Hold a collection vessel under the
oil drain plug.
4. Unscrew the oil drain plug from
the compressor pump.
• Collect the oil in the vessel.
•If the oil does not drain out
completely, we recommend
tilting the compressor slightly.
5. When the oil has drained out, refit
the oil drain plug.
6. Dispose of the old oil in an environmentally responsible way.

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SPECIFICATIONS
Max Pressure 8 Bar / 116PSI
Voltage 230 VAC (50Hz)
Output Power 1491W
Air Displacement 7 CFM
Receiver Capacity 50 L
Fuse Rating 13 A
Dimensions (L x W x H) 725 x 380 x 650 mm
Guaranteed Sound Power Level 96 dB(A)
Weight 30 kg
Outlet Size 1/4” BSP
Oil Type SAE30 Compressor Oil
Operating Temperature 5oC - 40oC
Please note that the details and specifications contained herein, are correct
at the time of going to print. We reserve the right to change specifications at
any time without prior notice.

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TROUBLESHOOTING
CAUTION: DO NOT TRY TO REPAIR OR ADJUST THIS COMPRESSOR IF YOU
ARE UNCERTAIN. IF YOU HAVE ANY QUERIES, CONTACT YOUR DEALER.
PROBLEM PROBABLE CAUSE REMEDY
The compressor
has stopped
and does not
start.
Bad electrical connec-
tions.
1. Check electrical
connections.
2. Clean and tighten if
necessary.
Overload cutout switch
has tripped.
1. Switch off and wait approx
5 minutes.
2. Press the reset button and
switch on again.
Motor windings burnt out. 1. Contact your Clarke dealer
for a replacement motor.
Compressor
does not reach
the set pressure
and overheats
Compressor head gasket
blown or valve broken.
1. Return the compressor to
your nearest Clarke service
agent.
Compressor
does not start.
The tank has already fully
pressurised.
1. Open drain valve to expel
air. Compressor should start
again when pressure
reduces.
Air leaking from
the non-return
valve when the
compressor is
not running.
Faulty non-return valve. 1. Drain receiver completely
of air.
2. Remove the valve end
plug,
3. Carefully clean the valve
seat and the gasket
4. Reassemble.
Air pressure
from the regula-
tor will not
adjust.
The diaphragm within the
regulator body is broken.
1. Replace regulator.
Compressor is
noisy & makes a
metallic knock-
ing sound.
Compressor damaged
and needs overhaul.
1. Return the compressor to
your nearest Clarke service
agent.

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PARTS DIAGRAM

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PARTS LIST
1CRANKCASE
2CRANKSHAFT
3OILSEAL GASKET
4FRONT COVER
5OIL DRAIN PLUG
6OIL SIGHTGLASS SEAL
7OIL SIGHTGLASS
8BOLT
9BREATHER
10 SCREW
11 CONNECTING ROD
12 RETAINING RING
13 PISTON PIN
14 PISTON
15 OIL RING
16 COMPRESSION RING
17 CYLINDER GASKET
18 CYLINDER
19 STUD BOLT
20 SPRING WASHER
21 NUT
22 VALVE PLATE GASKET
23 VALVE PLATE
24 VALVE R EED
25 ALUMINUM GASKET
26 CYLINDER HEAD GASKET
27 ELBOW
28 CYLINDER HEAD
29 HEX BOLT
30 AIR FILTER
31 NUT
32 CAPACITOR
33 FLAT WASHER
34 SPRING WASHER
35 LONG BOLT
36 SHROUD
37 BOLT
38 CIRCLIP
39 FAN
40 BEARING SEAT
41 WAVE GASKET
42 STATOR
43 BALL BEARING
44 ROTOR
45 BALL BEARING
46 OIL SEAL
47 OVERLOAD PROTECTOR
48 TANK
49 HOLE PLUG
50 NUT
51 SPRING WASHER
52 FLAT WASHER
53 WHEEL
54 BOLT
55 DRAIN VALVE
56 BOLT
57 FOOT
58 FLAT WASHER
59 SPRING WASHER
60 NUT
61 HANDLE PLUG
62 SAFETY VALVE
63 PRESSURE SWITCH
64 PRESSURE GAUGE (50 MM)
65 CONNECTOR
66 REGULATOR
67 BALL VALVE
68 PRESSURE GAUGE (40 MM)
69 NUT
70 TUBE
71 CHECK VALVE
72 NUT
73 EXHAUSTING PIPE
74 POWER CABLE
75 MOTOR CABLE

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DECLARATION OF CONFORMITY