Chicago Pneumatic CPRB50 MX20 2HP MS Compressor Instruction Manual
- June 9, 2024
- Chicago Pneumatic
Table of Contents
Chicago Pneumatic CPRB50 MX20 2HP MS Compressor
WARNING: Please read and understand this manual before operating the compressor
READ THE INSTRUCTION HANDBOOK Before positioning, operating or adjusting the compressor, read the instruction handbook carefully.
RISK OF ELECTRICAL SHOCK – Disconnect power supply before attempting any maintenance
RISK OF HIGH TEMPERATURES – Caution: the compressor contains some parts which might reach high temperatures.
RISK OF ACCIDENTAL START-UP – Attention, the compressor could start automatically after a power cut if not switched off.
- TANK
- CONDENSATE DRAIN
- FILTRE A AIR
- CHECK VALVE
- PRESSURE SWITCH
- PRESSURE REDUCER
- PRESSURE GAUCE
- REDUCED COMPRESSED AIR OUTLET
- SAFETY VALVE
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and
warnings in the Instruction Manual before operating or maintaining this
compressor. Most accidents that result from compressor operation and
maintenance are caused by the failure to observe basic safety rules or
precautions. An accident can often be avoided by recognizing a potentially
hazardous situation before it occurs, and by observing appropriate safety
procedures.
Basic safety precautions are outlined in the “SAFETY” section of this
Instruction Manual and in the sections which contain the operation and
maintenance instructions. Hazards that must be avoided to prevent bodily
injury or machine damage are identified by
WARNINGS on the compressor and in this Instruction Manual. Never use this compressor in a manner that has not been specifically recommended by manufacturer, unless you are absolutely sure that the planned use ill be safe for you and others.
NOTE: emphasizes essential information.
SAFETY
WARNING: DEATH OR SERIOUS BODILY INJURY COULD RESULT FROM IMPROPER OR UNSAFE USE OF THE COMPRES-SOR. TO AVOID THESE RISKS, FOLLOW THESE BASIC SAFETY INSTRUCTIONS.
-
NEVER TOUCH MOVING PARTS
Never place your hands, fingers or other body parts near the com- pressor’s moving parts. -
NEVER OPERATE WITHOUT ALL GUARDS IN PLACE
Never operate this compressor without all guards or safety features in place and in proper working order. f maintenance or servicing requires the removal of a guard or safety features, be sure to replace the guards or safety features before resuming operation of the compressor. -
ALWAYS WEAR EYE PROTECTION
Always wear safety goggles or equivalent eye protection. Com-pressed air must never be aimed at anyone or any part of the body. -
PROTECT YOURSELF AGAINST ELECTRIC SHOCK Prevent body contact with grounded surfaces such as pipes, radiators, ranges and refrigeration enclosures. Never operate the com-pressor in damp or wet locations.
-
DISCONNECT THE COMPRESSOR
Always disconnect the compressor from the power source and remove the compressed air from the air tank before servicing, in-specting, maintaining, cleaning, replacing or checking any parts. -
VOID UNINTENTIONAL STARTING
Do not carry the compressor while it is connected to its power source or when the air tank is filled with compressed air. Ensure the knob of the pressure switch is in the “OFF” position before connecting the compressor to the power source. -
STORE COMPREsSOR PROPERLY
When not in use, the compressor should be stored in a dry place.
Keep out of reach of children. Store in a lockable area when not in use. -
KEEP WORK AREA CLEAN
Cluttered work areas can cause injuries. Clear all work areass of unnecessary tools, debris, furniture etc. Risk of electric shock do not expose the compressor to rain and don’t use it in damp or wet locations. Keep work area well-lit and well-ventilated. Risk of fire or explosion. Do not carry and operate the compressor or any other electrical device near the spray area. Don’t use the compressor in the presence of flammable liquids or gases as the compressor can produce sparks during operation. Never use compressor in sites containing lacquer, paint, benzene, thinner, gasoline, gases, adhesive agents and other materials which are combustible or explosive. -
KEEP CHILDREN AND OTHER PEOPLE AWAY FROM COMPRESSOR DURING USE
Do not let children or other people interfere with the compressor or extension cord. All visitors should be kept safely away from work area. -
DRESS PROPERLY
Do not wear loose clothing or jewellery. They can be caught in moving parts. Wear protective hair covering to contain long hair. -
DO NOT ABUSE POWER CORD
Never yank or pull the power cord to disconnect it from the plug socket. Keep the cord away from heat, oil and sharp edges. -
MAINTAIN COMPRESSOR WITH CARE
Follow instructions for lubricating. Inspect power cords periodically and if damaged, have them repaired by an authorized service facility. Inspect extension cords periodically and replace if damaged. -
OUTDOOR USE OF EXTENSION CORDS
When compressor is in use outdoors, use only extension cords suitable for outdoor use. -
STAY ALERT
Take care. Use common sense. Do not operate compressor when you are tired. Compressor should never be used by you if you are under the influence of alcohol, drugs or medication that makes you drowsy. -
CHECK FOR DAMAGED PARTS AND AIR LEAKS
If a guard or other part is damaged it should be carefully checked to determine that it will operate properly and perform its intended function. Before further use of the compressor check for alignment of moving parts, binding of moving parts, breakage of parts, mountings,air leak and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated elsewhere in this Instruction Manual. Defective pressure switches should be replaced by authorized service center. Do not use compressor if power switch does not turn it on and off. -
OPERATE THE COMPREsSOR ACCORDING TO THE INSTRUCTIONS PROVIDED HEREIN
This compressor has been designed and manufactured exclusively to produce compressed air. Operate the compressor according to the instructions provided herein. -
HANDLE COMPRESSOR CORRECTLY
Operate the compressor according to the instructions provided herein. Never allow the compressor to be operated by children, indivi- duals unfamiliar with its operation or unauthorized personnel. -
KEEP ALL SCREWS, BOLTS AND COVERS TIGHTLY INN PLACE
Keep all screws, bolts, and plates tightly mounted. Check their condtions periodically. -
KEEP MOTOR AIR VENT CLEAN
The motor air vent must be kept clean so that air can flow freely at all times. Frequently check for dust build-up. -
OPERATE COMPRESSOR AT THE RATED VOLTAGE
Operate the compressor at voltages specified on their nameplates.
If using the compressor at a higher voltage than the rated voltage, it will result in abnormally fast motor revolution and may damage the unit and burn out the motor. -
NEVER USE A COMPRESSOR WHICH IS DEFECTIVE OR OPERATING ABNORMALLY
If the compressor appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by an authorized service center. -
DO NOT WIPE PLASTIC PARTS WITH SOLVENT
Solvents such as gasoline, thinner, benzene, carbon tetrachloride,and alcohol may damage and crack plastic parts. Do not wipe them with such solvents. Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly. -
USE ONLY GENUINE REPLACEMENT PARTS
Replacement parts which are not original may void your warranty and can lead to malfunction and resulting injuries. Genuine parts are available from your dealer. -
DO NOT MODIFY THE COMPRESSOR
Do not modify the compressor. Always contact the authorized service center for any repairs. Unauthorized modification may not only impair the compressor performance but may also result in accident or injury to repair personnel who do not have the required knowledge and technical expertise to perform the repair operations correctly. -
TURN OFF THE PRESSURE SWITCH WHEN THE COM- PRESSOR IS NOT IN USE
When the compressor is not used, turn the knob of the pressure switch OFF, disconnect it from the power source and open the drain cock to discharge the compressed air from the air tank. -
NEVER TOUCH HOT SURFACES
To reduce the risk of burns, do not touch tubes, heads, motors and cylinder. -
DO NOT DIRECT AIR STREAMAT BODY
Risk of injury, do not direct air stream at persons or animals. -
DRAIN TANK
Drain tank daily or after 4 hours of use. Open drain fitting and tilt compressor to empty accumulated water. -
DO NOT STOP COMPRESSOR BY PULLING OUT THE PLUG Use the “AUTO/OFF” knob of pressure switch.
-
USE ONLY RECOMMENDED AIR HANDLING PARTS ACCEPTABLE FOR PRESSURE NOT LESS THAN 125 PSI (8.6 BAR) Risk of bursting. Use only recommended air handling parts acceptable for pressures not less than 125 psi (8.6 bar).
INTENDED USE
This compressor has been designed for use with intermittent (not continuous)
operation, with a max. duty factor of 30% ( i.e. 3 minu-tes run and 7 minutes
stop), considering ideal enviromental condition (max temp 25°C).
Respect of these tips and regular maintenance will ensure good functioning.
Compressors on wheels with power greater or equal than 3Hp/2,2 kW, are
intended to be use indoor
ELECTRICAL CONNECTION
The compressor should be grounded while in use to protect the operator from
electric shock.
Single-phase compressor is equipped with a three-core cable and three-pin
grounding type plug to fit the proper grounding type socket.
Three-phase compressor is supplied with electrical cable without plug.
Connection should be conducted only by qualified electrician The green (or
green and yellow) conductor in the cord is the ground ding wire. Never connect
it to a live terminal.
Never disassemble the compressor or carry out other connections to the
pressure switch.
USE OF EXTENSION CABLE
Use only three-way extension cables that have three-pin connecting plugs and
three-pole sockets that accept the compressor plug.
Do not use extension cables that are damaged or squashed. An under-rated cable
will cause a drop in line voltage resulting in loss of power and overheating.
Check table A (pag.5) in order to choose cable correct size
Tab. A
Volt / ph| 220-230/1| 110-120/1
HP| kW| mm² ()| mm² ()
0,75| 0,65| 1,5| 2,5
1| 0,75| 1,5| 2,5
1,5| 1,1| 2,5| 4
2| 1,5| 2,5| 4 – 6
| | |
(*)Cable cross.section for maximum length of 20 m Section valable pour la longueur maximum, soit 20 m
WARNING
Avoid electrical shock hazard.
Never use this compressor with a damaged or frayed electrical cord or
extension cord. Inspect all electrical cords regularly.
Never use in or near water or in any environment where electric shocks are
possible.
INSTALLATION AND USE
NOTE: The information contained in this Instruction Manual is designed to
assist you in the safe operation and maintenance of the compressor. S ome
illustrations may show details or attachments that differ from those on your
own compressor.
Specifications are subject to change without any prior warning where
necessary. ****
INSTALLATION
- Remove the compressor from its packing (fig.1), makes sure it is in perfect condition, checking if it was damaged during transport, and carry out the following operations:
- Fit the wheels and rubber tab on the tankS on which they are not already fitted, observing the instructions in fig.2/3. In case of inflatable wheels, the maximum inflation pressure must be of 1,6 bar (24 psi).
- Position the compressor on a flat surface in a well-ventilated area, away from the weather and in non-explosive atmosphere.
- TAKE CARE TO TRANSPORT THE COMPRESSOR CORRECT LY, DO NOT OVERTURN IT OR LIFT IT WITH HOOKS OR ROPES (FIG. 4/5)
- If the surface is inclined and smooth, check if the compressor moves while in operation – if it does, secure the wheels with two wedges. If the surface is a bracket or a shelf top, make sure it cannot fall,securing it in a suitable way.
- To ensure good ventilation and efficient cooling, the compressor’s belt guard must be at least 50 cm from any wall (fig.6).
ELECTRICAL CONNECTION
Single-phase compressors are supplied with an electrical cable and a two-pole
- earth plug. The compressor must be connected to
a grounded power socket (fig.7) protected by a suitable differential switch (magneto-thermal).
START-UP
Check that the mains power matches that indicated on the electrical dataplate
(fig.7), the permissible tolerance range is +/-5%.
Fit the plug in the power socket and start the compressor, turning the
pressure switch knob into position “1/ON” (fig.8).
The compressor is fully automatic, and is controlled by the pressure switch
which stops it when tank pressure reaches maximum value and restarts it when
it falls to minimum value. The pressure difference between maximum and minimum
values is usually about 2 bar (29 psi).
E.g.: the compressor stops when it reaches 8 bar (116 psi – maximum operating
pressure) and restarts automatically when the pres- sure drops to 6 bar (87
psi).
After connecting the compressor to the power line, load it to maxi- mum
pressure and check corrrect functioning.
NOTE Some models are equipped with a discharge valve, useful to facilitate
next start. In this case it is normal a puff of air when compressor stops
MOTOR PROTECTION DEVICES
Compressors must be always connected to a power socket protected by a suitable
differential switch (magneto-thermal).
Compressor are equipped with an automatic thermal breaker located inside the
winding. It stops the compressor when motor tempe rature reaches excessively
high values. If the breaker is tripped, the compressors restarts automatically
after 10 to 15 minutes.
Compressors of this range are fitted with a manual re-arm ampe rometric
thermal breaker, located outside the terminal board cover.
When the breaker is tripped, wait for a few minutes and then reset the breaker
manually (fig.9).
Note: If the protection device trips again. if’s higly reccomen: ded stop the compressor, disconnect electric plug and call the nearest service centre
ADJUSTING THE WORKING PRESSURE
Pneumatic tools being used often requires lower pressure than the maximum
operating pressure. Always check correct pressure on tool’s manual.
On compressors supplied with a pressure reducer, operating pressure must be
correctly adjusted (see fig.10).
Release the pressure reducer knob by pulling it up, adjust pressure to the
required value by turning the knob clockwise to increase pressure and anti-
clockwise to reduce it.
When you have obtained optimum pressure, lock the knob by pressing it
downward.
Pressure can be seen on the pressure gauge.
For pressure reducers equipped without a pressure gauge, the set pressure can
be seen on the graduated Scale located on the reducer body.
WARNING: Some pressure regulators do not have “push to lock” therefore
simply turn the knob to adjust the pressure.
For those models without pressure reducer, a suitable pressure reducer must be
fitted on the distribution line by the user.
CAUTIONS WHILE USING
- Do not unscrew any connection while the tank is pressurised,always check if the tank is pressure free.
- Do not drill holes, weld or purposely deform the air tank.
- Do not do any jobs on the compressor unless you have disconnected the power plug
- Temperature in operating ambient: 0°C +35°C.
- Do not aim jets of water or inflammable liquids on the compressor.
- Do not place inflammable objects near the compressor.
- During down-times, turn the pressure switch to position “0” (OFF).
- Never aim the air jet at people or animals
- Do not transport the compressor while the tank is pressurised
- Be careful with regard to some parts of the compressor such as the head and delivery tubes, as they can reach high temperatures. Do not touch these parts to avoid burns.(fig. 11)
- Transport the compressor, lifting or pulling it with the appropriate grips or handles.
- Keep children and animals well away from the machine operating area.
If using the compressor for painting
-
Do not work in closed environments or near to naked flames
-
Make sure there is adequate exchange of air
-
Protect your nose and mouth with an appropriate mask.
If the electrical cable or plug are damaged, do not use the com pressor and contact an authorised service centre to replace the faulty element with an original spare part. -
Do not insert hands and/or any object inside protection grilles.
MAINTENANCE
Before attempting any maintenance jobs on the compressor,make sure of the following:
- Master power switch in position “0/off”.
- Pressure switch off, in position “0/ofF
No pressure in the air tank
CLEAN/REPLACE SUCTION FILTER
Every 50 hours of duty: dismantle the suction filter and clean the filtering
element by blowing with compressed air (fig.12).
Replace the filter element at least once a year if the compressor operates in
a clean environment, but more frequently if in a dusty environment.
In some models, the suction filter is located internally under the cover.
Unscrew the securing screws, remove the cover carefully, remove the filter
from its seat and clean it. Reassemble all parts before restart the
compressor.
CONDENSATE DRAIN
The compressor generates condensate water which accumulates in the tank.
The condensate in the tank must be drained at least once a week. by opening
the drain tap (fig.13) under the tank.
Take care if there is compressed air inside the cylinder, and water could flow
out with considerable force. Recommended pressure: 1-2 bar max.
CONDENSATE MUST NOT BE DRAINED INTO THE SEWER OR DISPERSED IN THE ENVIRONMENT.
RECOMMENDED MAINTENANCE
In units with 2 poles, replace the whole connecting rod piston unit every
700-800 hours of operation.
In units with 4 poles, replace the connecting rod piston unit every 1800-2000
hours of operation.
TROUBLESHOOTING
Loss of air in valve under pressure switch
It could depend on poor tightness of the check valve. Take the following
action (fig. 14):
Discharge all pressure from the tank
Unscrew the hexagon-head of the valve (A)
Carefully clean both the rubber disk (B) and its seat.
Refit all parts accurately.
Air losses
These can be caused by poor tightness of a union, check all unions,wetting
them with soapy water
Compressor turns but does not load
It may be due to failure of the valves or a seal: please contact the nearest
service centre.
Compressor no starting
If the compressor has trouble stating, check the following:
Does mains power match that of the data-plate?
Are power cable extensions of adequate diameter or length (see 1.5)?
Is the work environment too cold? (under 0°C)
Was the thermal-breaker tripped? (see 2.4)
Is power supplied to the electrical line? (sockets well connected,thermal-
breaker, fuses in good condition)
Compressor not stopping
If the compressor does not stop when maximum pressure is reached, and the tank
safety valve comes into operation. In this evenience please contact the
nearest service centre.
NOTE
TECHNICAL DATA
Refer to the label affixed to the compressor.
Compressors for the European market are manufactured in compliance with the EC
directives (see declaration of conformity)
Maximum operating pressure (see label on the compressor)
The sound level is measured in compliance with EC directives (see declaration
of conformity)
STORING THE PACKED AND UNPACKED COMPRESSOR
For the whole time that the compressor is not used before unpacking it, store
it in a dry place at a temperature between +5°C and
+45°C and sheltered away from weather.
For the whole time that the compressor is not used after unpacking it, while
waiting to start it up or due to production stoppages, place sheets over it to
protect it from dust e dirty.
PNEUMATIC CONNECTIONS
Make sure that pneumatic tubes for compressed air with maximum pressure
characteristics that are adequate for the compressor are used. Do not attempt
to repair faulty tubes.
INSTRUCTION
WIRING DIAGRAM
- POWER SUPPLY
- PRESSURE SWITCH
- AUTOMATIC THERMAL PROTECTION SWITCH
- MANUAL AMPEROMETRIC PROTECTION
- CONDENSER
- MOTOR
- AUXILIARY WINDING
- STARTING WINDING
V220-230/50-60/3 – V380-400/50-60/3
The device may not be disposed of with household rubbish.
This appliance is labelled in accordance with European Directive 2012/19/UE
concerning used electrical and electronic appliances (waste electrical and
electronic equipment – WEEE).
The guideline determines the framework for the return and recycling of used appliances as applicable throughout the EU. To return your used device, please use the return and collection systems available to you.