PROPOINT 8475022 Le manuel du propriétaire
- Catégorie
- Compresseurs d'air
- Taper
- Le manuel du propriétaire
8475022
Please read this manual before use.
V 1.3
120 Gallon 2-stage Cast Iron
Industrial Air Compressor
User Manual
P/N 200-2914-E
2For technical questions call 1-800-665-8685
8475022V 1.3
120 Gallon 2-stage Cast Iron
Industrial Air Compressor
SPECIFICATIONS
Air Delivery 31.3 CFM @ 100 PSI
30.2 CFM @ 175 PSI
Air Tank Capacity 120 Gallons (454 litres)
Max. Air Pressure 175 PSI
Cut-In Pressure 145 PSI
Cut-Out Pressure 175 PSI
Compressor Type Belt Driven, Two Stage
Pump Style Cast Iron, Two-Stage, Oil-lubricated
Oil Capacity
(Approx.)
3.25 quarts (3 litres)
Maximum RPM 850 RPM
Weight 205 lb (93 kg)
Current Rating 25A
Voltage Rating 230
Phase 3 Phase
Noise Rating 82 dB
INTRODUCTION
The 120 Gallon 2-Stage Cast Iron Industrial Stationary Air Compressor is designed for auto
body shops, agricultural operations and industrial applications. Industrial performance
delivers maximum CFM @ 175 PSI, which provides enough power to operate more than one
air tool or device at one time.
The cast iron, industrial duty, two stage compressor pump features hardened steel disc
valves, oversized taper roller bearings, fully balanced cast iron flywheel and splash type
lubrication. The 230/460 volt (factory wired for 230 volt) industrial class, three phase
electric motor is equipped with a pre-wired and mounted magnetic starter. Uniquely
designed metal belt guard improves compressor pump cooling by as much as 60°F (15°C)
over other belt guard designs. The extra large capacity, 120 gallon tank is ASME certified.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
3
Visit www.princessauto.com for more information
8475022 V 1.3
SAFETY
WARNING! Read and understand all instructions before using this device. The operator
must follow basic precautions to reduce the risk of personal injury and/or damage
to the equipment.
Keep this manual for safety warnings, precautions, operating or inspection and
maintenance instructions.
HAZARD DEFINITIONS
Please familiarize yourself with the hazard notices found in this manual. A notice is an alert
that there is a possibility of property damage, injury or death if certain instructions are
not followed.
DANGER! This notice indicates an immediate and specific hazard that will result in severe
personal injury or death if the proper precautions are not taken.
WARNING! This notice indicates a specific hazard or unsafe practice that could result in
severe personal injury or death if the proper precautions are not taken.
CAUTION! This notice indicates a potentially hazardous situation that may result in minor
or moderate injury if proper practices are not taken.
NOTICE! This notice indicates that a specific hazard or unsafe practice will result in
equipment or property damage, but not personal injury.
WORK AREA
1. Operate in a safe work environment. Keep your work area clean, well lit and
free of distractions.
2. Keep anyone not wearing the appropriate safety equipment away from
the work area.
3. Store devices properly in a safe and dry location. Keep devices out of the
reach of children.
4. Do not install or use in the presence of flammable gases or liquids. Always operate
compressor in a well-ventilated area. Locate the compressor at least 20 feet away
from work area if spraying flammable materials.
PERSONAL SAFETY
WARNING! Wear personal protective equipment approved by the Canadian Standards
Association (CSA) or American National Standards Institute (ANSI).
1. Wear personal protection equipment such as ANSI Z87.1 approved safety goggles,
gloves, steel toe footwear or a hard hat as warranted by the work environment.
1.1. This device can cause hearing damage. Wear hearing protection with an
appropriate Noise Reduction Rating, especially if using it for extended periods.
2. Control the device, personal movement and the work environment to avoid personal
injury or damage to the device.
3. Do not operate any device when tired or under the influence of drugs, alcohol
or medications.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
4For technical questions call 1-800-665-8685
8475022V 1.3
SPECIFIC SAFETY PRECAUTIONS
1. Risk of Bursting
1.1 Serious injury or death may occur from an air tank explosion if the air tank is
not properly maintained or if modifications, alterations or repairs are attempted.
Drain air tank daily or after each use. Never drill into, weld, patch or modify the
air tank. Replace the tank immediately or replace the entire compressor,
if a leak develops.
1.2 Serious injury or death may occur if modifications are made to the pressure
switch, safety relief valve or other components that control the tank pressure.
Never make adjustments to the components that control tank pressure. Do not
make alterations to the factory operating pressure settings. Check operation of
the pressure relief valve on a regular basis and never operate without a factory
approved pressure relief valve.
1.3 Do not use plastic or pvc pipe for compressed air. Use only galvanized steel pipe
and fittings for compressed air distribution lines.
1.4 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.
2. Risk of Explosion or Fire
2.1 Serious injury may occur if a fire is caused by overheating due to inadequate
ventilation or restrictions to any of the compressor’s ventilation openings.
Never place objects against or on top of an air compressor. Always operate air
compressor at least 12 in. away from any wall or obstruction. Always operate in a
clean, dry and well-ventilated area.
2.2 Unattended operation of this compressor could result in personal injury or
property damage. To reduce the risk of fire, do not allow the compressor to
operate unattended. Always disconnect electrical power by turning the pressure
switch to o and drain the tank daily or after each use.
3. Risk of Burn
Serious burn injuries could occur from touching exposed metal parts such as the
compressor head or motor during operation and even after the compressor is shut
down for some time. Never touch any of the exposed metal parts during operation
and for an extended period of time after the air compressor has shut down. Do not
attempt maintenance on the unit until it has been allowed to completely cool.
4. Risk from Moving Parts
4.1 Serious injury may occur from moving parts such as the flywheel or belts if they
came in contact with you or your clothing. Never operate the air compressor
without the protective cover installed. Replace a damaged protective
cover immediately.
4.2 Serious injury may occur if repairs are attempted with damaged, missing or
removed protective guards, shrouds or missing covers. All repairs to the air
compressor should be made only by authorized or trained service personnel.
4.3 This unit starts automatically. Always shut o the compressor and bleed all
pressure from the system before servicing the compressor and when the
compressor is not in use.
5. Flying Objects
5.1 Serious injury may occur from loose debris being propelled at high speeds
from the compressed air stream. Always wear OSHA approved safety glasses to
protect the eyes during operation of the air compressor.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
5
Visit www.princessauto.com for more information
8475022 V 1.3
5.2 Never point the air stream or air tools at any point of your body, other people or
animals. Debris and dust may be ejected without warning. Always turn o the air
compressor and drain tank pressure completely before attempting maintenance
or attaching air tools. Release pressure slowly from the system.
6. Risk of Damage to Air Compressor or Property
6.1 Failure to transport or operate the air compressor properly may result in major
repair expenses. Always run the compressor in a level, secure position that keeps
it from tipping or falling during use.
6.2 Do not operate without an air filter or in a corrosive environment.
6.3 Always transport in a level position and use protective mats to keep truck beds
clean, etc. Fasten the compressor down securely. Pressure must be released from
the tank before transporting.
6.4 In cold climates, drain the tank after each use to avoid ice build up.
7. Stationary tanks should be level to distribute oil properly and prevent damage to the
tank and compressor. The tank’s feet should be shimmed so the pump base is level to
within 1/8 in. All feet must be supported prior to attaching to the floor.
7.1 Always operate the compressor in a stable secure position to prevent accidental
movement of the unit.
GENERAL SAFETY PRECAUTIONS
ELECTRICAL SAFETY
WARNING! All wiring should be performed by a qualified electrician.
1. Disconnect device from power source before cleaning, servicing, changing parts/
accessories or when not in use.
2. Protect yourself against electric shocks when working on electrical equipment. Avoid
body contact with grounded surfaces. There is an increased chance of electrical
shock if your body is grounded.
3. Failure to provide adequate grounding to this product could result in serious injury
or death from electrocution. Make certain that the electrical circuit to which the
compressor is connected provides proper electrical grounding, correct voltage and
adequate fuse protection.
4. Do not alter any parts of the device or accessories. All parts and accessories are
designed with built-in safety features that may be compromised if altered.
5. Make certain that power source conforms to requirements of your equipment.
6. To reduce the risk of electric shock, do not expose to rain. Store the
compressor indoors
7. When wiring an electrically driven device, follow all electrical and safety codes, as
well as the most recent Canadian Electrical Code (CE) and Canadian Centre for
Occupational Health and Safety (CCOHS).
120 Gallon 2-stage Cast Iron Industrial Air Compressor
6For technical questions call 1-800-665-8685
8475022V 1.3
USE AND CARE OF THE DEVICE
1. Use the correct device for the job. This device was designed for a specific function.
Do not modify or alter this device or use it for an unintended purpose.
2. Conduct regular maintenance according to the schedule found in the
Maintenance section.
PARTS IDENTIFICATION
WARNING! Do not operate the device if any part is missing. Replace the missing part
before operating. Failure to do so could result in a malfunction and personal injury.
Remove the parts and accessories from the packaging and inspect for damage. Make sure
that all items in the parts list are included.
Contents:
• Air Compressor
BASIC AIR COMPRESSOR COMPONENTS
The basic components of the air compressor are the electric motor, pump, pressure switch,
and tank.
The electric motor (A) powers the pump.
The pump (B) compresses the air and discharges it into the tank. The tank (C) stores the
compressed air.
The pressure switch (D) shuts down the motor and relieves air pressure in the pump
and transfer tube when the air pressure in the tank reaches the cut–out pressure. As
compressed air is used and the pressure level in the tank drops to the cut–in pressure, the
pressure switch restarts the motor automatically and the pump resumes compressing air.
A magnetic starter (E) is required for the proper operation of the compressor. A magnetic
starter that is not factory mounted on the compressor can be mounted on the wall if
desired. Mount as close to compressor as possible. Size the wires, protect them with
conduit and provide branch circuit protection per electrical and safety codes, as well as
the most recent Canadian Electrical Code (CE) and Canadian Centre for Occupational
Health and Safety (CCOHS).
Fig. 1
120 Gallon 2-stage Cast Iron Industrial Air Compressor
7
Visit www.princessauto.com for more information
8475022 V 1.3
COMPRESSOR CONTROLS
Main Power Disconnect
Install a main power disconnect switch in the power line to the compressor, near the
compressor’s location for ease of use and safety. The disconnect switch functions are
selected manually. When the switch is in the ON position, power is supplied to the
compressor. The pressure switch will start up or shut down the compressor automatically,
based on air demand. Always select OFF when the compressor is not being used. When
turned OFF, the main power disconnect switch shuts o all power to the compressor.
MAGNETIC STARTER RESET SWITCH
WARNING! Ensure that all guards and shrouds are in place before pressing the reset
switch to restart the motor.
If the motor shuts down because of an overload, wait 10–15 minutes so the motor can cool
down, then press (never force) the reset switch on front of the magnetic starter to restart
the motor.
A. PRESSURE SWITCH
WARNING! The pressure switch is preset. Do not attempt to tamper or adjust the setting.
The pressure switch controls the level of air pressure in the tank by automatically starting
and stopping the motor, as required to maintain the factory preset pressure level. The
pressure switch also automatically bleeds pressure from the pump head when the pump
stops. This feature eliminates back pressure in the pump, ensuring easier starting.
B. TANK SAFETY VALVE
The tank safety valve is designed to discharge tank pressure at a predetermined setting,
slightly above the compressor’s cut-out pressure setting. The safety valve will protect
against high pressure ruptures if the pressure switch does not shut o the compressor. Do
not tamper with or attempt to eliminate the tank safety valve.
C. PRESSURE RELIEF VALVE
The air compressor is equipped with a pressure relief valve (located on the bottom of the
pressure switch) that is designed to release compressed air from the compressor head and
outlet tube when the compressor reaches the cut-out pressure setting or is shut o. The
pressure valve allows the motor to restart freely. When the motor stops running, air will be
heard escaping from this valve for a few seconds. No air should be heard leaking when the
motor is running or after a brief release of air after reaching the cut-out pressure.
Do not tamper with or attempt to eliminate the safety relief valve.
D. TANK PRESSURE GAUGE
This gauge measures the pressure level of the air stored in the tank. It is not adjustable by
the operator and does not indicate line pressure.
Fig. 2
120 Gallon 2-stage Cast Iron Industrial Air Compressor
8For technical questions call 1-800-665-8685
8475022V 1.3
ASSEMBLY
When this manual refers to a part number, it refers to the included Parts List.
LOCATION INSTALLATION
Locate the compressor according to the following guidelines:
1. For optimum performance, locate the compressor close to the power panel (see
section Main Power Panel) and as close as possible to the place where the air will be
used. This ensures maximum power to the compressor and maximum air pressure
to the air tool. If both of these conditions cannot be met, it is better to locate the
compressor close to the power panel and use a longer hose to reach the usage area.
2. The flywheel side of the compressor must be at least 12 inches (30.5 cm) from any
wall or obstruction, in a clean, well-ventilated area, to ensure sucient air flow
and cooling.
3. In cold climates, locate the compressor in a heated building to reduce problems with
lubrication, motor starting and freezing of water condensation.
4. The compressor must be level to ensure proper lubrication of the pump and good
drainage of the moisture in the tank.
5. Vibration pads under the tank’s feet are recommended.
ELECTRICAL POWER REQUIREMENTS
WARNING! All wiring should be performed by a qualified electrician.
Refer to the air compressor’s serial label for the unit’s voltage and amperage requirements.
Ensure that all wiring is done by a licensed electrician in accordance with all electrical
and safety codes, as well as the most recent Canadian Electrical Code (CE) and Canadian
Centre for Occupational Health and Safety (CCOHS).
MAIN POWER PANEL
For best performance and reliable starting, wire the air compressor into a dedicated 230V
circuit, as close as possible to the main electrical panel. A circuit breaker is recommended.
Use a time delay fuse if the air compressor is connected to a circuit protected by a fuse, as
the compressor will momentarily draw several times its specific amperage when
first started.
MAGNETIC STARTER
The air compressor requires a magnetic starter to prevent motor damage in the event of a
thermal overload.
LOW VOLTAGE PROBLEMS
Low voltage or an overloaded circuit can make it dicult to start the motor or can
cause the circuit breaker to trip, especially in cold conditions. Low voltage can have
several sources:
• Low supply voltage from the local power company.
• Other equipment running on the same line. The compressor may fail to start if any
other electrical devices are drawing from the compressor’s circuit.
• Inadequate wiring to the power source. The input voltage will drop by 20 to 40 volts
at startup if the wiring is not adequate. Inadequate wiring depends on the distance
between the compressor and the 230V power source. As distance increases without
a change in wire gauge (thickness), the power will drop and not enough Volts/Amps
120 Gallon 2-stage Cast Iron Industrial Air Compressor
9
Visit www.princessauto.com for more information
8475022 V 1.3
will reach the motor. The wire gauge must increase in size (gauge 8 is larger than
gauge 10) to accommodate the voltage drop. Refer to the Canadian Electrical Code
(CE) to determine proper wire size for your circuit.
GROUNDING INSTRUCTIONS
This product must be connected to a permanent, metallic wiring system or a grounding
terminal/lead on the equipment.
OPERATION
BREAK-IN THE PUMP
NOTICE! The pump is shipped with break–in oil, which should be changed after the first
8 hours of operation. To reduce maintenance and repair problems, use only a premium
compressor oil.
1. Check the level of oil in the pump with the sight glass. The pump oil level must be
between A and B (Fig. 3). Do not overfill or underfill.
2. Make sure the power is connected at the power panel.
3. Turn the pressure switch to the OFF position (A).
4. Open the drain valve (C) by turning it counterclockwise.
5. Turn ON the main power disconnect switch. Turn the pressure switch to the ON
position (B). The motor should start. Allow the compressor to run for 30 minutes,
to break in the internal parts. (Fig. 4)
NOTICE! Shut the compressor down immediately if the unit does not operate
properly after 30 minutes and contact Princess Auto Ltd. for a solution.
6. After about 30 minutes, shut o the main power disconnect.
7. Turn the pressure switch to o (A).
8. Close the drain valve (D). Turn it clockwise.
9. The compressor is ready for use.
PRE-START CHECKLIST
1. Inspect/clean/change intake elements on a regular basis. The ingestion of dirt into
the pump is the primary cause of premature wear. Check intake filters daily.
2. Check oil level daily and change at regular intervals.
3. Check the tension of bolts and hardware on a regular basis. Operation of any
equipment with loose bolts and/or fittings will lead to excessive vibration and the
premature failure of the compressor system control components.
Fig. 3 Fig. 4 Fig. 5
120 Gallon 2-stage Cast Iron Industrial Air Compressor
10 For technical questions call 1-800-665-8685
8475022V 1.3
4. Drain moisture from the air tank daily. Water is a natural byproduct of compressed air.
Drain the air tank after each use to avoid internal tank corrosion. Keep drain valves
open when not in use.
DAILY START UP
WARNING! High temperatures are generated by the electric motor and the pump. To
prevent burns or other injuries, DO NOT touch the compressor while it is running. Allow it
to cool before handling or servicing. Keep children away from the compressor at
all times.
1. Check the sight glass to ensure the level of oil in the pump is at the required level.
2. Turn the main power disconnect switch to the OFF position.
3. Close the tank drain valve.
4. Turn ON the main power disconnect switch. Turn the pressure switch to the ON
position. The pump will start filling the tank with air. When the air pressure in the tank
reaches the level preset at the factory, the pressure switch will turn o the electric
motor. As air is used and the pressure level in the tank drops, the pressure switch will
start the motor and the pump will begin refilling the tank.
SHUTDOWN
1. Turn the pressure switch to the OFF position.
2. Turn the power disconnect switch to the OFF position.
3. Reduce pressure in the tank by slowly opening the drain valve at the bottom of the
tank. The escaping air will also blow condensation out. Leave the drain valve open
until the next use.
MAINTENANCE
WARNING! Only qualified service personnel should repair the device. An improperly
repaired device may present a hazard to the user and/or others.
CAUTION! Always unplug or shut down your compressor and drain the air tank
completely before attempting any type of maintenance. Wait for compressor to cool
before servicing.
1. Maintain the device with care. A device in good condition is ecient, easier to control
and will have fewer problems.
2. Follow the maintenance schedule for your compressor.
3. Drain tank of moisture after each day’s use. Leave the drain valve open until the next
time it is used. This will allow moisture to completely drain out and help prevent
corrosion on the inside of tank (Fig. 4).
4. Inspect the device fittings, alignment and hoses periodically. Have damaged or worn
components repaired or replaced by an authorized technician.
4.1 Pull the relief valve daily to ensure that it is operating properly and to clear the
valve of any possible obstructions.
4.2 Check that all connections are tight and don’t leak.
5. Maintain the device’s label and name plate. These carry important information. If
unreadable or missing, contact Princess Auto Ltd. for replacements.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
11
Visit www.princessauto.com for more information
8475022 V 1.3
MAINTENANCE SCHEDULE
TASK INTERVAL
Check Pump Oil Level Daily or After Each Use
Operate the Pressure Relief Valves Daily or After Each Use
Drain Tank Daily or After Each Use
Inspect and Clean Air Filter Daily or After Each Use
Change Pump Oil Every 200 operating hours
Check Belt Tension Every 250 operating hours
Check and Tighten All Bolts After first 8 hours and every 500 operating hours
Check Operation of System Controls Every 3 months
Check Air tank for Dents/Leaks Every 3 months
LUBRICATION
Inspect and lubricate the device when required.
Only use full synthetic, non-detergent air compressor oil to lubricate the pump.
Other lubricants may not be suitable and could damage the device or cause a malfunction
during use.
CHECKING THE OIL
Prior to daily operation, check the oil level in your compressor pump. Check the sight glass
to ensure the level is between A and B. The optimal level is 2/3 full on the sight gauge. Do
not operate the pump with an inadequate or excessive amount of oil.
NOTICE! Use full synthetic, non-detergent air compressor oil.
CHANGING THE OIL
1. Remove the oil plug (C) and drain the oil until it slows to a drip, then close (Fig. 6).
2. Add oil to the pump by first removing the breather plug (D).
3. Add compressor oil (approx. 104 fl. oz/3 litres) until the level viewed through the
sight glass is between FULL (A) and ADD (B).
4. Replace the breather plug.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
12 For technical questions call 1-800-665-8685
8475022V 1.3
DRIVE BELT TENSION ADJUSTMENT
Drive belt tensioning and pulley alignment are done at the same time. They are discussed
separately for clarity.
Proper belt tension and pulley alignment must be maintained for maximum drive eciency
and belt life. The correct tension exists if a deflection (A) of 1/2 in. (13 mm) occurs by
placing 10 lb (4.6 kg) of force (B) midway between the motor pulley and the pump
flywheel (Fig. 7). This deflection can be adjusted by the following procedure. The pulley
should be carefully aligned with the flywheel and all set screws should be kept tight.
1. Remove the belt guard by removing the screws and washers using a star
head screwdriver.
2. Loosen the motor mounting bolts.
3. Shift the motor to the point where the correct deflection exists (A and B).
4. Retighten the motor mounting bolts to 10.8 to 15 ft-lb (14.7 to 20.3 N-m).
5. Check to ensure that the tension remained correct.
6. Reinstall the belt guard. All moving parts must be guarded.
PULLEY ALIGNMENT
NOTICE! Once the motor pulley is moved from its factory set location, the grooves of the
flywheel and pulley must be aligned to within 1/16 in. to prevent excessive belt wear.
To check pulley alignment, remove the belt guard and place a straightedge (A) against
the pump flywheel (B) (Fig. 8). Measure and record the distance from the straightedge
to the edge of the drive belt at point C. Then measure the distance from the straightedge
to the edge of the drive belt again at points D and E. Both distances should be the same
as at point C. If either D or E are dierent from C, there is a misalignment which must be
corrected before the compressor is run.
To correct a pulley misalignment, use the following procedure.
1. Remove the belt guard with a star head screwdriver.
2. Loosen the motor mounting bolts.
3. Remove the 2 screws and lock washers from the hub using a 7/16 in. wrench.
4. Insert the screws into the threaded holes on the hub and tighten to pull hub away
from sheave, remove screws.
Fig. 7
120 Gallon 2-stage Cast Iron Industrial Air Compressor
13
Visit www.princessauto.com for more information
8475022 V 1.3
5. Align the motor pulley with the pump flywheel (C-D-E must be equal).
6. Replace hub by aligning non-threaded holes in hub to holes in sheave. Insert screws
and lock washers and tighten.
7. Adjust the proper belt tension.
8. Retighten the motor mounting bolts to 10.8 to 15 ft-lb (14.7 to 20.3 N-m).
9. Reinstall the belt guard. All moving parts must be guarded
DRIVE BELT REPLACEMENT
1. Remove the front of the belt guard by removing the screws and washers using a star
head screwdriver.
2. Loosen the motor mounting bolts.
3. Shift the motor towards the pump to the point where the belts can be easily removed
and installed.
4. Remove and replace belts. The belts must be centered over the grooves on the
flywheel and motor pulley.
5. Shift the motor back to the point where the correct deflection exists (see Drive Belt
Tension Adjustment).
6. Retighten the motor mounting bolts to 10.8 to 15 ft-lb (14.7 to 20.3 N-m).
7. Check to ensure that the tension remained correct.
8. Reinstall the belt guard. All moving parts must be guarded
TO REPLACE OR CLEAN A CHECK VALVE
1. Shut OFF the main power disconnect. Relieve all the air pressure from the tank
(refer to Shutdown in Operations). Make sure the compressor has cooled down
before servicing.
2. Using the appropriately sized wrench, loosen the compression nuts (A) on the check
valve (B) and pump head (C). Remove the transfer tube (D).
3. Using the appropriately sized wrench, loosen the compression nut (F) from the
connector (G), located on the side of the check valve. Remove the bleeder tube (E).
4. Making note of the orientation for reassembly, unscrew the check valve from the tank
(counterclockwise) using the appropriately sized wrench.
5. Using a pencil or screwdriver, carefully push the valve disc up and down (H). If the
valve disc does not move freely up and down, the check valve needs to be cleaned
or replaced.
6. Clean the check valve with warm soapy water and make sure to dry thoroughly
before reinstalling. If the disc valve still does not move freely up and down, it will
need to be replaced.
7. Apply thread sealant to the check valve threads and reinstall into the tank by turning
clockwise. Make sure it is the same orientation as when it was removed.
8. Replace the bleeder tube and tighten compression nut.
Fig. 8
120 Gallon 2-stage Cast Iron Industrial Air Compressor
14 For technical questions call 1-800-665-8685
8475022V 1.3
9. Replace the transfer tube and tighten compression nuts.
10. Perform the Break-In The Pump procedure in Operations to make sure there are no
leaks and the check valve is working properly.
CLEANING THE AIR FILTER
A dirty air filter will reduce the compressor’s performance and life. To avoid any internal
contamination of the pump, the filter should be cleaned frequently and replaced on a
regular basis.
Remove the wing nut (A) and metal cover (B) to access the filter element (C).
Felt filters should be cleaned in warm, soapy water, rinsed and allowed to air dry before
reinstallation. Paper filters should be replaced when dirty. Do not allow the filter to become
filled with dirt or paint. Replace the filter if it becomes filled with paint.
Fig. 11
TESTING FOR LEAKS
Check that all connections are tight. A small leak in any of the hoses, transfer tubes or
pipe connections will substantially reduce the performance of your air compressor. Locate
a leak by spraying a small amount of soapy water around the area of the suspected leak.
Repair or replace the faulty component if bubbles appear. Do not over tighten
any connections.
A
D
A
B
F
E
C
G
Fig. 9
Fig. 10
Fig. 9
120 Gallon 2-stage Cast Iron Industrial Air Compressor
15
Visit www.princessauto.com for more information
8475022 V 1.3
STORAGE
Before storing the compressor for a prolonged period, use an air blowgun to clean all dust
and debris from the compressor. Disconnect the power cord and coil it up on the handle.
Open the drain valve to release all pressure from the tank. This will also drain all moisture
from the tank. Clean the filter element and filter housing; replace the element if necessary.
Drain the oil from the pump crankcase and replace it with new oil. Cover the entire unit to
protect it from moisture and dust.
DISPOSAL
Recycle a device damaged beyond repair at the appropriate facility.
Contact your local municipality for a list of disposal facilities or by-laws for electronic
devices, batteries, oil or other toxic liquids.
IMPORTANT! DO NOT pollute the environment by allowing uncontrolled discharge of
waste oil.
TROUBLESHOOTING
Contact Princess Auto Ltd. for a solution if the device does not function properly or parts
are missing. If unable to do so, have a qualified technician service the device.
Problem(s) Possible Cause(s) Suggested Solution(s)
Pump is slow to
build tank pressure.
1. Tank drain valve is open.
2. Loose/slipping belt.
3. Leaks in system.
4. Blown gasket.
5. Broken reed valve.
6. Obstructed intake filter.
7. Leaking regulator.
8. Defective pressure
relief valve.
1. Close drain valve.
2. Adjust belt tension.
3. Correct air leaks.
4. Replace head gaskets.
5. Replace reed valves.
6. Clean or replace intake element.
7. Replace regulator.
8. Replace pressure relief valve.
Excessive oil
consumption.
1. Too much oil
in crankcase.
2. Improper weight of oil.
3. Obstructed
crankcase vent.
4. Dirty/plugged
intake filter.
5. Worn piston rings.
6. Scored cylinder.
1. Drain to proper level.
2. Replace with proper oil.
3. Replace dipstick or oil fill plug/
crankcase vent.
4. Clean/replace intake filter.
5. Contact Princess Auto Ltd.
for solution.
6. Contact Princess Auto Ltd.
for solution.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
16 For technical questions call 1-800-665-8685
8475022V 1.3
Problem(s) Possible Cause(s) Suggested Solution(s)
Low discharge
pressure.
OR
Compressor does
not stop.
1. Tank drain valve is open.
2. Air leaks.
3. Restricted air intake.
4. Prolonged excessive use
of air.
5. Compressor not
large enough.
6. Tank leaks.
7. Blown seals or gaskets.
8. Leaking/worn piston
rings or cylinder.
1. Close drain valve.
2. Tighten or replace leaking fittings or
connections (do not over tighten).
Check air hose. Replace parts
if necessary.
3. Clean or replace air filter element(s).
4. Decrease amount of air used.
5. Check air requirement of accessory.
If it is higher than CFM and pressure
supplied by compressor, you need a
larger compressor. Most accessories
are rated at 25% of actual CFM while
running continuously.
6. Immediately replace tank. DO NOT
attempt to repair.
7. Replace seals or gasket.
8. Replace piston ring or cylinder.
Air leaks
from regulator.
Or
Regulator does not
regulate pressure.
Dirty or damaged regulator
internal parts.
Replace regulator or internal parts.
Regulated pressure
gauge reading
drops when air
accessory is
being used.
1. This is normal.
2. Compressor not
large enough.
1. If pressure drops too low, adjust air
tool regulator while accessory
is used.
2. Check air requirement of accessory.
If it is higher than CFM and pressure
supplied by compressor, you need a
larger compressor. Most accessories
are rated at 25% of actual CFM while
running continuously.
Pressure relief
valve opens.
1. Tank pressure
exceeded normal
operating pressure.
2. Pressure switch stuck.
1. Replace pressure switch.
2. Replace pressure switch.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
17
Visit www.princessauto.com for more information
8475022 V 1.3
Problem(s) Possible Cause(s) Suggested Solution(s)
Motor will not run. 1. Tank pressure exceeds
preset pressure
switch limit.
2. Check valve stuck open.
3. Wrong wire gauge in
power line.
4. Loose electrical
connections.
5. Paint spray on internal
motor parts.
6. Possible defective
motor.
1. Motor will start automatically when
tank pressure drops below cut-in
pressure of pressure tank.
2. Remove and clean or replace.
3. Check for proper gauge for distance
between power source
wand compressor.
4. Contact Princess Auto Ltd.
for a solution.
5. Have checked at service center. Do
not operate compressor in the paint
spray area.
6. Contact Princess Auto Ltd.
for a solution.
Excessive current
draw trips
circuit breaker.
1. Low voltage/
motor overload.
2. Drive belt too tight.
3. Restricted air passages.
1. Check that power supply is adequate
and that compressor is on a
dedicated circuit.
2. Readjust belt tension.
3. Inspect and replace transfer tubes or
check valve, as required.
Compressor stalls. 1. Low voltage motor.
2. Bad check valve.
3. Seized pump.
1. Furnish adequate power.
2. Replace the check valve.
3. Contact Princess Auto Ltd.
for a solution.
Compressor pump
knocking.
1. Loose engine pulley or
compressor flywheel.
2. Low oil level in
pump crankcase.
3. Excess carbon on valves
or top of piston.
1. Retighten pulley and flywheel.
Check alignment.
2. Keep oil at proper level at all times.
3. Contact Princess Auto Ltd.
for a solution.
Oil in discharge air. 1. Worn piston rings
or cylinder.
2. Restricted air intake.
3. Oil level too high.
1. Contact Princess Auto Ltd.
for a solution.
2. Clean or replace the air
filter element(s).
3. Reduce to proper level.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
18 For technical questions call 1-800-665-8685
8475022V 1.3
Problem(s) Possible Cause(s) Suggested Solution(s)
Overheating. 1. Poor ventilation.
2. Dirty cooling surfaces.
3. Restricted air passages.
1. Relocate compressor to an area with
cool, dry, well circulated air, at least
12 in. from nearest wall.
2. Clean all cooling surfaces thoroughly.
3. Replace transfer tubes
and/or unloaded.
Excessive
belt wear.
1. Pulley out of alignment.
2. Improper belt tension.
3. Pulley wobbles.
1. Realign pulley with
compressor flywheel.
2. Readjust.
3. Replace the pulley and check for a
damaged crankshaft or flywheel.
Compressor won’t
start in
cold temperatures.
1. Too much back pressure
in tank.
2. 40W oil in crankcase.
3. Compressor too cold.
1. Open drain valve when
starting motor.
2. Use full synthetic, non-detergent air
compressor oil suitable for
low temperatures.
3. Move compressor to a
warmer location.
120 Gallon 2-stage Cast Iron Industrial Air Compressor
19
Visit www.princessauto.com for more information
8475022 V 1.3
PARTS BREAKDOWN
120 Gallon 2-stage Cast Iron Industrial Air Compressor
20 For technical questions call 1-800-665-8685
8475022V 1.3
PARTS LIST – COMPRESSOR
PART # DESCRIPTION QTY. PART IDENTIFIER
1 Screw, #10-14 x 3/4 in. 1 061-0152
2 Washer, #10 5 060-0146
3 U-nut, Spring M5 x 0.8 7 103-0205
4 Belt Guard (outer) 1 125-0226
5 Screw, 1/4 x 3/4 in. lg 2 N/A (Order item #7)
6 Key 5/16 x 3/16 x 1 1/4 in. lg 1 146-0007
7 Hub (includes item 5) 1 004-0002
8 Pulley 1 006-0161
9 V-belt, B64 2 008-0040
10 Belt Guard (inner) 1 125-0217
11 Screw, #10-32 x 3/4 in. 2 061-0212
12 Nut, 10-32 2 058-0158
13 Reducer Coupling, 1 x 3/4 in. 1 063-0045
14 Bracket, Belt Guard 2 114-0349
15 Bolt, Lock 3/8-16 x 3/4 in. lg 6059-0164
16 Washer, 3/8 in. 12 060-0023
17 Switch, Pressure (includes items 19 & 22 to 23) 1 034-0199
18 Gauge, 300 PSI 1 032-0025
19 Valve, Bleeder 1 136-0090
20 Nipple, 1/4 in. NPT x 2 1/2 in. lg 1 065-0005
21 Valve, Relief, 200 PSI 1 136-0007
22 Strain Relief 1 071-0033
23 Screw 1 061-0216
24 Motor, 230V 1 160-0347
25 Cord, Interconnect 10/4 (to motor) 1 026-0189
26 Cord, Interconnect 14/3 (to switch) 1 026-0223
27 Bolt, 3/8 x 1 in. lg 4 059-1007
28 Nut, 3/8 in. 4 058-0009
29 Label, Warning 1 098-3031
30 Label, Warning 1 098-3870
31 Tank Assembly (includes items 32-35) 1 515-0358
32 O-ring 2 in. 2 513-0001
33 Bushing, 2 NPSM x 3/4 in. NPT 1 512-0043
34 Bushing, 2 NPSM x 1/4 in. NPT 1 512-0041
35 Petcock, 1/4 in. NPT 1 072-0019
36 Bracket 1 114-0849
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
PROPOINT 8475022 Le manuel du propriétaire
- Catégorie
- Compresseurs d'air
- Taper
- Le manuel du propriétaire
dans d''autres langues
- English: PROPOINT 8475022 Owner's manual