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OPERATOR’S MANUAL
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MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
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POMPE A HULE - BOMBA CON LUBRICACION DE ACI
ETE
5 Gallon
18,8 Litre
18,7 Litro
4.4 SCFM @ 90PSI
0,12 m /Min @ 621 kPa
0,12 m /Min @ 6,21 bar
145 Max PSI
999 KpA
9,99 bar
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5 GALLON PORTABLE
AIR COMPRESSOR
OIL LUBRICATED
OL50145MW
Your air compressor has been engineered and manufactured to our high standard for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.
Thank you for buying a RIDGID® product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
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TABLE OF CONTENTS
Introduction.......................................................................................................................................................................2
General Safety Rules .....................................................................................................................................................3-4
Specific Safety Rules ........................................................................................................................................................ 4
Symbols .........................................................................................................................................................................5-6
Electrical ........................................................................................................................................................................... 7
Glossary of Terms ............................................................................................................................................................. 8
Features ............................................................................................................................................................................ 9
Assembly ...................................................................................................................................................................10-11
Operation ...................................................................................................................................................................12-14
Maintenance ..............................................................................................................................................................15-16
Troubleshooting .............................................................................................................................................................. 17
Warranty .........................................................................................................................................................................18
Customer Service Information ...........................................................................................................................Back Page
INTRODUCTION
This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability
have been given top priority in the design of this product making it easy to maintain and operate.
DANGER:
This compressor/pump is not equipped and should not be used to supply breathing quality air. Additional equipment would be necessary to properly filter and purify the air to meet minimal specifications for Grade D breathing
as described in Compressed Gas Association Commodity Specification G 7.1 - 1966, OSHA 29 CFR 1910.134.
Compressed Gas Association, 4221 Walney Road, Fifth Floor, Chantilly, VA 20151-2923, (703) 788-2700,
www.cganet.com. Any such additional equipment has not been examined and no implication of proper use for
breathing air is intended or implied.
If this compressor is altered in any way, existing warranties shall be voided. RIDGID® and One World Technologies,
Inc. disclaim any liabilities whatsoever for any loss, personal injury, or damage.
DISCLAIMER OF WARRANTIES
In the event the compressor is used for the purpose of breathing air application and proper in-line safety and alarm
equipment is not simultaneously used, existing warranties shall be voided, and RIDGID® disclaims any liabilities
whatsoever for any loss, personal injury, or damage.
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GENERAL SAFETY RULES
WARNING:
Read and understand all instructions. Failure
to follow all instructions listed below may result
in electric shock, fire, and/or serious personal
injury.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents. Floor must not
be slippery from wax or dust.
Do not operate power tools in explosive atmospheres,
such as in the presence of flammable liquids, gases,
or dust. Power tools create sparks which may ignite the
dust or fumes.
Keep bystanders, children, and visitors away while oper-
ating tools. Distractions can cause you to lose control.
Operate air compressor in an open area at least 18 in.
away from any wall or object that could restrict the
flow of fresh air to ventilation openings.
ELECTRICAL SAFETY
Avoid body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerators. There is an
increased risk of electric shock if your body is grounded.
Don’t expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord to carry the
tool or pull the plug from an outlet. Keep cord away
from heat, oil, sharp edges, or moving parts. Replace
damaged cords immediately. Damaged cords increase
the risk of electric shock.
When operating a power tool outside, use an outdoor
extension cord marked “W-A” or “W”. These cords are
rated for outdoor use and reduce the risk of electric shock.
PERSONAL SAFETY
Eye protection which conforms to ANSI specifications
and provides protection against flying particles both
from the FRONT and SIDE should ALWAYS be worn
by the operator and others in the work area when
loading, operating, or servicing this tool. Eye protection
is required to guard against flying fasteners and debris,
which could cause severe eye injury.
The employer and/or user must ensure that proper
eye protection is worn. We recommend a Wide Vision
Safety Mask for use over eyeglasses or standard safety
glasses that provide protection against flying particles
both from the front and side. Always use eye protection
which is marked to comply with ANSI Z87.1.
Additional safety protection will be required in some
environments. For example, the working area may
include exposure to a noise level which can lead to hearing damage. The employer and user must ensure that any
necessary hearing protection is provided and used by the
operator and others in the work area. Some environments
will require the use of head protection equipment. When
required, the employer and user must ensure that head
protection marked to comply with ANSI Z89.1 is used.
Stay alert, watch what you are doing, and use common
sense when operating a power tool. Do not use tool
while tired or under the influence of drugs, alcohol,
or medication. A moment of inattention while operating
power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry.
Contain long hair. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enables better
control of the tool in unexpected situations.
Use safety equipment. Always wear eye protection.
Dust mask, nonskid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.
Do not use on a ladder or unstable support. Stable
footing on a solid surface enables better control of the
tool in unexpected situations.
TOOL USE AND CARE
Do not exceed the pressure rating of any component
in the system.
Protect material lines and air lines from damage or
puncture. Keep hose and power cord away from sharp
objects, chemical spills, oil, solvents, and wet floors.
Check hoses for weak or worn condition before each
use, making certain all connections are secure. Do not
use if defect is found. Purchase a new hose or notify an
authorized service center for examination or repair.
Release all pressures within the system slowly. Dust
and debris may be harmful.
Store idle tools out of the reach of children and other
untrained persons. Tools are dangerous in the hands of
untrained users.
Maintain tools with care. Follow maintenance instruc-
tions. Properly maintained tools are easier to control.
Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that may
affect the tool’s operation. If damaged, have the tool
serviced before using. Many accidents are caused by
poorly maintained tools.
Never point any tool toward yourself or others.
Keep the exterior of the air compressor dry, clean, and
free from oil and grease. Always use a clean cloth when
cleaning. Never use brake fluids, gasoline, petroleumbased products, or any strong solvents to clean the unit.
Following this rule will reduce the risk of deterioration of
the enclosure plastic.
SERVICE
Tool service must be performed only by qualified
repair personnel. Service or maintenance performed by
unqualified personnel may result in a risk of injury.
Disconnect power supply, open drain valve to decom-
press tanks and allow water to drain, and allow air
compressor to become cool to the touch before
servicing. Turn pressure regulator knob fully clockwise
after shutting off compressor.
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GENERAL SAFETY RULES
When servicing a tool, use only identical replacement
parts. Follow instructions in the Maintenance section
SPECIFIC SAFETY RULES
Know your power tool. Read operator’s manual carefully.
Learn its applications and limitations, as well as the
specific potential hazards related to this tool. Following
this rule will reduce the risk of electric shock, fire, or
serious injury.
Drain tanks of moisture after each day’s use.
If unit will not be used for a while, it is best to leave drain
valve open until such time as it is to be used. This will
allow moisture to completely drain out and help prevent
corrosion on the inside of tanks.
Risk of Fire or Explosion. Do not spray flammable liquid
in a confined area. Spray area must be well ventilated. Do
not smoke while spraying or spray where spark or flame
is present. Keep compressors as far from the spraying
area as possible, at least 15 feet from the spraying area
and all explosive vapors.
Risk of Bursting. Do not adjust regulator to result in
output pressure greater than marked maximum pressure of
attachment. Do not use at pressure greater than 145 psi.
If connected to a circuit protected by fuses, use time-
delay fuses with this product.
To reduce the risk of electric shock, do not expose to
rain. Store indoors.
Inspect tanks yearly for rust, pin holes, or other
imperfections that could cause it to become unsafe.
Never weld or drill holes in the air tanks.
Make sure the hose is free of obstructions or snags.
Entangled or snarled hoses can cause loss of balance or
footing and may become damaged.
Use the air compressor only for its intended use. Do
not alter or modify the unit from the original design
or function.
Always be aware that misuse and improper handling
of this tool can cause injury to yourself and others.
Never leave a tool unattended with the air hose
attached.
Do not operate this tool if it does not contain a legible
warning label.
Do not continue to use a tool or hose that leaks air or
does not function properly.
Always disconnect the air supply and power supply
before making adjustments, servicing a tool, or when a
tool is not in use.
Do not attempt to pull or carry the air compressor by
the hose.
Your tool may require more air consumption than this
air compressor is capable of providing.
Always follow all safety rules recommended by the
manufacturer of your air tool, in addition to all safety
rules for the air compressor. Following this rule will
reduce the risk of serious personal injury.
Never direct a jet of compressed air toward people or
animals. Take care not to blow dust and dirt towards
of this manual. Use of unauthorized parts or failure to
follow Maintenance instructions may create a risk of
injury.
yourself or others. Following this rule will reduce the risk
of serious injury.
Do not use this air compressor to spray chemicals.
Your lungs can be damaged by inhaling toxic fumes. A
respirator may be necessary in dusty environments or
when spraying paint. Do not carry while painting.
Inspect tool cords and hoses periodically and, if damaged,
have repaired at your nearest Authorized Service Center.
Constantly stay aware of cord location. Following this rule
will reduce the risk of electric shock or fire.
Never use an electrical adaptor with this grounded
plug.
Check damaged parts. Before further use of the air
compressor or air tool, a guard or other part that is
damaged should be carefully checked to determine
that it will operate properly and perform its intended
function. Check for alignment of moving parts, binding
of moving parts, breakage of parts, mounting, 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.
Following this rule will reduce the risk of shock, fire, or
serious injury.
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one
heavy enough to carry the current your product will
draw. A wire gauge size (A.W.G.) of at least 14 is
recommended for an extension cord 25 feet or less in
length. A cord exceeding 50 feet is not recommended.
If in doubt, use the next heavier gauge. The smaller
the gauge number, the heavier the cord. An undersized
cord will cause a drop in line voltage resulting in loss of
power and overheating.
This equipment incorporates parts, such as snap
switches, receptacles, and the like that tend to produce arcs or sparks and, therefore, when located in a
garage, it should be in a room or enclosure provided for
the purpose, or should be 18 in. (457 mm) or more above
the floor.
Never store tool with air connected. Storing the tool
with air connected can result in unexpected firing and
possible serious personal injury.
Protect your lungs. Wear a face or dust mask if the
operation is dusty. Following this rule will reduce the risk
of serious personal injury.
If the power supply cord is damaged, it must be replaced
only by the manufacturer or by an authorized service
center to avoid risk.
Save these instructions. Refer to them frequently and use
them to instruct others who may use this tool. If you loan
someone this tool, loan them these instructions also.
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SYMBOLS
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts
A Amperes
Hz Hertz
Alternating Current
Class II Construction
Wet Conditions Alert
Read The Operator’s Manual
Eye Protection
Safety Alert
Voltage
Current
Frequency (cycles per second)
Type of current
Double-insulated construction
Do not expose to rain or use in damp locations.
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Always wear safety goggles or safety glasses with side shields and,
as necessary, a full face shield when operating this product.
Precautions that involve your safety.
Risk of Bursting
Risk of Fire or Explosion
Risk of Electrical Shock
Hot Surface
Risk to Breathing
Pinch Point
Do not adjust regulator to result in output pressure greater than
marked maximum pressure of attachment. Do not use at pressure
greater than 145 PSI.
Do not spray flammable liquid in a confined area. Spray area
must be well ventilated. Do not smoke while spraying or spray
where spark or flame is present. Keep compressors as far from
the spraying area as possible, at least 15 feet from the spraying
area and all explosive vapors.
Hazardous Voltage: Disconnect from power source before servicing. Compressor must be grounded.
To reduce the risk of injury or damage, avoid contact with any
hot surface.
Air obtained directly from the air compressor should never be
used to supply air for human consumption.
To reduce the risk of injury or damage, avoid contact with
any pinch point.
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SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL
SIGNAL MEANING
DANGER:
WARNING:
CAUTION:
CAUTION:
Indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
Indicates a potentially hazardous situation, which, if not avoided, may result in
minor or moderate injury.
(Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SERVICE
Servicing requires extreme care and knowledge and should
be performed only by a qualified service technician. For
service we suggest you return the product to your nearest
AUTHORIZED SERVICE CENTER for repair. When servicing, use only identical replacement parts.
WARNING:
To avoid serious personal injury, do not attempt
to use this product until you read thoroughly and
understand completely the operator’s manual.
If you do not understand the warnings and
instructions in the operator’s manual, do not use
this product. Call RIDGID® customer service for
assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes, which can result
in severe eye damage. Before beginning power tool operation, always wear safety goggles or safety glasses
with side shields and, when needed, a full face shield. We recommend Wide Vision Safety Mask for use
over eyeglasses or standard safety glasses with side shields. Always use eye protection which is marked
to comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
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ELECTRICAL
EXTENSION CORDS
Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the product’s
plug. When using a power tool at a considerable distance
from the power source, use an extension cord heavy enough
to carry the current that the tool will draw. An undersized
extension cord will cause a drop in line voltage, resulting in
a loss of power and causing the motor to overheat. Use the
chart provided below to determine the minimum wire size
required in an extension cord. Only round jacketed cords
listed by Underwriter’s Laboratories (UL) should be used.
**Ampere rating (on product data plate)
0-2.0 2.1-3.4 3.5-5.0 5.1-7.0 7.1-12.0 12.1-16.0
Cord Length Wire Size (A.W.G.)
25' 16 16 16 16 14 14
50' 16 16 16 14 14 12
100' 16 16 14 12 10 —
**Used on 12 gauge - 20 amp circuit.
NOTE: AWG = American Wire Gauge
When working with the product outdoors, use an extension
cord that is designed for outside use. This is indicated by the
letters “W-A” or “W” on the cord’s jacket.
Before using an extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
WARNING:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on
lumber, tools, or other obstructions while you are
working with a power tool. Failure to do so can
result in serious personal injury.
WARNING:
Check extension cords before each use. If
damaged replace immediately. Never use the
product with a damaged cord since touching
the damaged area could cause electrical shock
resulting in serious injury.
SPEED AND WIRING
The no-load speed of this product is approximately 3,450
rpm. This speed is not constant and decreases under a load
or with lower voltage. For voltage, the wiring in a shop is as
important as the motor’s horsepower rating. A line intended
only for lights cannot properly carry a power tool motor. Wire
that is heavy enough for a short distance will be too light for
a greater distance. A line that can support one power tool
may not be able to support two or three tools.
GROUNDING INSTRUCTIONS
This product must be grounded. In the event of a malfunction
or breakdown, grounding provides a path of least resistance
for electric current to reduce the risk of electric shock.
This product is equipped with an electric cord having an
equipment-grounding conductor and a grounding plug. The
plug must be plugged into a matching outlet that is properly
installed and grounded in accordance with all local codes
and ordinances.
Do not modify the plug provided. If it will not fit the outlet,
have the proper outlet installed by a qualified electrician.
WARNING:
Improper installation of the grounding plug is liable
to result in a risk of electric shock. When repair or
replacement of the cord is required, do not connect
the grounding wire to either flat blade terminal.
The wire with insulation having an outer surface
that is green with or without yellow stripes is the
grounding wire.
Check with a qualified electrician or service personnel if
the grounding instructions are not completely understood,
or if in doubt as to whether the product is properly
grounded.
Repair or replace a damaged or worn cord immediately.
This product is for use on a nominal 120 V circuit and has
a grounding plug similar to the plug illustrated in figure 1.
Only connect the product to an outlet having the same
configuration as the plug. Do not use an adapter with this
product.
ELECTRICAL CONNECTION
This product is powered by a precision-built electric motor.
It should be connected to a power supply that is 120 V, AC
only, (normal household current) 60 Hz. Do not operate
this product on direct current (DC). A substantial voltage
drop will cause a loss of power and the motor will overheat.
If the product does not operate when plugged into an outlet,
double check the power supply.
GROUNDING
PIN
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120 V GROUNDED OUTLET
Fig. 1
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GLOSSARY OF TERMS
Air Filter
Porous element contained within a metal or plastic housing
attached to the compressor cylinder head which removes
impurities from the intake air of the compressor.
Air Tank
Cylindrical component which contains the compressed air.
Amperage Overload Switch (Manual)
Automatically shuts off the compressor if the temperature of
the electric motor exceeds a predetermined limit.
Check Valve
Device that prevents compressed air from flowing back from
the air tank to the compressor pump.
Cut-In Pressure
The low pressure at which the motor will automatically
restart.
Cut-Off Pressure
The high pressure at which the motor will automatically
shut off.
Electric Motor
Device which provides the rotational force necessary to
operate the compressor pump.
On/Off Switch
Control which turns the air compressor on or off. The
pressure switch will not automatically start and control the
compressor unless the manual On/Off Switch is in the ON( l )
position.
NPT (National Pipe Thread)
A seal thread tape must be used to provide a leak-free seal
on pipe threaded connections.
Pressure Regulator Knob
Regulates the outgoing pressure from the air outlet to the
tool. It is possible to increase or decrease the pressure at
the outlet by adjusting this control knob.
Pressure Switch
Automatically controls the on/off cycling of the compressor.
It stops the compressor when the cut-off pressure in the tank
is reached and starts the compressor when the air pressure
drops below the cut-in pressure.
PSI (Pounds Per Square Inch)
Measurement of the pressure exerted by the force of the
air. The actual psi is measured by a pressure gauge on the
compressor.
Pump
Produces the compressed air with a reciprocating piston
contained within the cylinder.
Regulator Pressure Gauge
Displays the current line pressure. Line pressure is adjusted
by rotating the pressure regulator knob.
Safety valve
Prevents air pressure in the air tank from rising over a
predetermined limit.
SCFM (Standard Cubic Feet Per Minute) or CFM (Cubic
Feet Per Minute)
A unit of measure of air delivery.
Tank Pressure Gauge
Indicates the pressure in the air tank.
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100
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16
5
50
150
200
230
bar
psi
ON
OFF
O
I
1
TM
2
MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
-
POMPE A HULE - BOMBA CON LUBRICACION DE ACI
ETE
5 Gallon
18,8 Litre
18,7 Litro
4.4 SCFM @ 90PSI
0,12 m /Min @ 621 kPa
0,12 m /Min @ 6,21 bar
145 Max PSI
999 KpA
9,99 bar
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FEATURES
OFF
ON
PRODUCT SPECIFICATIONS
Air Tank Capacity .......................................................5 gal.
Air Pressure .................................................... 145 psi max.
Air Delivery ...........................................4.4 SCFM @ 90 psi
Gauges ..........................................................2 in. diameter
Input ..............................120 V, AC only, 60 Hz, 13.5 Amps
Net Weight ................................................................85 lbs.
HANDLES
SAFETY
VALVE
HANDLE
RELEASE KNOB
ON/OFF SWITCH
MOTOR
QUICK CONNECT
UNIVERSAL FITTINGS
DRAIN VALVE
KNOW YOUR AIR COMPRESSOR
See Figure 2.
The safe use of this product requires an understanding of
the information on the product and in this operator’s manual
as well as a knowledge of the project you are attempting.
REGULATOR
PRESSURE GAUGE
REGULATOR KNOB
PRESSURE
Before use of this product, familiarize yourself with all
operating features and safety rules.
DRAIN VALVE
Drain valves are located on both tanks for draining
condensation to help prevent tank corrosion.
HANDLES
The air compressor is equipped with retractable handles for
ease of use while transporting and while in use.
TANK
PRESSURE GAUGE
SEMI-PNEUMATIC TIRE
PRESSURE REGULATOR KNOB
Use the pressure regulator knob to adjust the amount of
air being delivered through the hose. Pressing down on the
knob will lock it into place. This prevents movement of the
knob caused by vibration during use.
REGULATOR PRESSURE GAUGE
The current line pressure is displayed on the regulator
pressure gauge. This pressure can be adjusted by rotating
the pressure regulator knob.
SAFETY VALVE
The safety valve is designed to automatically release air if
the air tank pressure exceeds the preset maximum.
TANK PRESSURE GAUGE
The tank pressure gauge indicates the pressure of the air
in the tank.
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0
2
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6
40
80
120
160
bar
0
2
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6
40
80
120
160
bar
ON
OFF
O
I
1
TM
2
MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
-
POMPE A HULE - BOMBA CON LUBRICACION DE ACI
ETE
5 Gallon
18,8 Litre
18,7 Litro
4.4 SCFM @ 90PSI
0,12 m /Min @ 621 kPa
0,12 m /Min @ 6,21 bar
145 Max PSI
999 KpA
9,99 bar
3
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ASSEMBLY
UNPACKING
This product requires assembly.
Carefully remove the product and any accessories from
the box. Make sure that all items listed in the packing list
are included.
Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-800-4-RIDGID for assistance.
PACKING LIST
Air Compressor
Handles (2)
Phillips Head Screw (4)
Wheel
Axle Rod
Hitch Pins (2)
Washers (2)
Oil Dipstick
Lubricant
Operator’s Manual
WARNING:
Do not connect to power supply until assembly
is complete. Failure to comply could result in
accidental starting and possible serious personal
injury.
HOLES
HANDLE
RELEASE KNOB
HANDLE
SCREW
Fig. 3
WARNING:
If any parts are damaged or missing do not operate
this product until the parts are replaced. Failure to
heed this warning could result in serious personal
injury.
WARNING:
Do not attempt to modify this product or create
accessories not recommended for use with this
product. Any such alteration or modification is
misuse and could result in a hazardous condition
leading to possible serious personal injury.
INSTALLING THE HANDLES
See Figure 3.
Insert supplied handle through handle slot by lifting up
on handle release knob and sliding handle through slot.
Push handle all the way up to the bent portion of the
handle and release handle release knob.
Install supplied Phillips head screw into slot in handle.
Repeat handle installation on the opposite side.
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ASSEMBLY
ON
OFF
O
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ON
ADD OIL BEFORE START.
Remove cap,
add oil and insert dipstick before start up.
APPOINT D’HUILE PREMIER
DÉMARRAGE.
Retirer bouchon,
appoint d’huile et insérer jauge
d’huile premier démarrage.
ABASTECER DE ACEITE ANTES
DE ARRANCARLO.
Retire la tapa,
abastecer de aeite y introduzca la tap
a,
antes de arrancarlo.
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MAX
INSTALLING THE DIPSTICK
See Figure 4.
The air compressor has a label installed between the oil fill
hole and a travel cap. Before using the unit the first time,
remove travel cap and label and insert supplied dipstick.
Make sure to add oil before first use. See Checking the Oil
before first time operation.
CHECKING THE OIL
See Figures 4 - 5.
Always check the oil when the unit is sitting on a level surface
and before first use.
Insert the dipstick into the oil fill hole completely. Remove
the dipstick and check the oil level.
Make sure the reading is between the MIN and MAX
reference levels on the dipstick.
NOTE:
Maximum level is reached when the oil reaches the MAX
level reference on the dipstick.
Reinsert the dipstick securely into the oil fill hole.
To add oil:
Remove the dipstick.
Using a funnel, carefully pour oil into the oil fill hole. Refill
only with synthetic oil SAE 5W50.
NOTE: Avoid using too much oil. Ensure that the level of
the oil does not exceed the maximum reference level on
the dipstick.
Reinsert the dipstick securely into the oil fill hole.
Never let the oil drop to a level lower than MIN.
OIL FILL HOLE
REFERENCE
LEVEL MARKS
DIPSTICK
LABEL
Fig. 4
DIPSTICK
INSTALLING THE SEMI-PNEUMATIC TIRE
See Figure 6.
Insert supplied axle rod through hole in semi-pneumatic
MAX REFERENCE MARK
tire hub, centering the tire between the two center holes
in the axle rod.
SCREW
Insert washers onto axle rod on either side and slide hitch
pins through both holes on either side of semi-pneumatic
tire to secure semi-pneumatic tire to the center of the axle
rod.
HITCH PIN
Insert tire rod (with semi-pneumatic tire installed) end
through metal bracket on the front of the air tank.
Insert the other axle rod end through metal bracket on
the opposite side.
Align the holes on the axle rod end with the slots in the
metal brackets and install supplied screws through the
lined up holes.
AXLE ROD
METAL
BRACKET
Fig. 5
WASHER
SEMI-PNEUMATIC TIRE
11
Fig. 6
Page 12
ON
OFF
O
I
ON
0
2
4
6
40
80
120
160
bar
0
2
4
6
40
80
120
160
bar
1
TM
2
MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
-
POMPE A HULE - BOMBA CON LUBRICACION DE AC
IETE
OPERATION
DANGER:
Do not disassemble check valve, tank drain valves
or safety relief valve with air in tank — bleed
tanks.
FEMALE COUPLER
WARNING:
Do not allow familiarity with products to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict severe injury.
WARNING:
Always wear safety goggles or safety glasses with
side shields when operating products. Failure to do
so could result in objects being thrown into your
eyes resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories
not recommended by the manufacturer of this
product. The use of attachments or accessories
not recommended can result in serious personal
injury.
WARNING:
Do not attach any tools to the open end of the hose
until start-up has been completed.
HOSE
ADAPTER END
PRESSURE
REGULATOR KNOB
TO
CLOSE
Fig. 7
(I) ON
(O) OFF
ON/OFF
SWITCH
CAUTION:
Do not use in an environment that is dusty or
otherwise contaminated. Using the air compressor
in this type of environment may cause damage to
the unit.
APPLICATIONS
Air compressors are utilized in a variety of air system
applications. Match hoses, connectors, air tools, and
accessories to the capabilities of the air compressor.
You may use this product for the purposes listed below:
Operating some air-powered tools
Operating air accessories such as air nozzles and
ATTACHING A HOSE
See Figure 7.
Make sure the air compressor is off and unplugged.
Rotate pressure regulator knob fully counterclockwise.
Attach hose with male connector to quick connect
inflators
Fig. 8
universal fitting on air compressor. Make sure to push the
hose adapter end fully into the coupler until the sleeve
springs forward to lock it in place.
TURNING THE AIR COMPRESSOR ON/OFF
See Figure 8.
With the air compressor plugged in, pull the power switch
to the ON position to power the compressor on.
To turn the air compressor off, push the power switch to
the OFF position.
NOTE: When the compressor is in the ON position, the
air compressor will automatically turn back on when the
designated tank air pressure drops below the preset pressure
limit. It will also shut off again when the desired pressure
is reached.
USING THE AIR COMPRESSOR
See Figures 9 - 10.
Ensure power switch is in the OFF (O) position and air
compressor is unplugged.
If not already installed, attach hose to compressor as
previously instructed.
12
Page 13
0
0
2
4
50
100
150
230
200
bar
100
0
0
16
5
50
150
200
230
bar
psi
TM
2
MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
-
POMPE A HULE - BOMBA CON LUBRICACION DE AC
IETE
OPERATION
OFF
ON
Attach 1/4 in. NPT male connector fitting to accessory or
tool you intend to use.
Insert the other end of the male connector to the quick
coupler on the open end of hose.
WARNING:
Always ensure the switch is in the OFF (O) position
and the regulator pressure gauge reads zero before
changing air tools or disconnecting the hose
from the air outlet. Failure to do so could result in
possible serious personal injury.
Connect the power cord to the power supply.
Turn the switch ON ( l ).
Pull out and rotate pressure regulator knob to desired
line pressure. Turning the knob clockwise increases air
pressure at the outlet; turning counterclockwise reduces
air pressure at the outlet.
Following all safety precautions in this manual and the
manufacturer’s instructions in the air tool manual, you
may now proceed to use your air-powered tool.
WARNING:
Air powered tools may require more air consumption
than this air compressor is capable of providing.
Check the tool manual to avoid damage to the tool
or risk of personal injury.
QUICK-CONNECT
AIR FITTING
REGULATOR
PRESSURE GAUGE
PRESSURE
REGULATOR KNOB
1/4 in. QUICK
COUPLER
TO OPEN
Fig. 9
TANK
PRESSURE GAUGE
Fig. 10
Control the amount of air flow with the pressure regulator
knob. Turning the knob fully counterclockwise will
completely stop the flow of air.
NOTE: Always use the minimum amount of pressure
necessary for your application. Using a higher pressure
than needed will drain air from the tank more rapidly and
cause the unit to cycle on more frequently.
When finished, always drain the tank and unplug the
unit. Never leave the unit plugged in and/or running
unattended.
DRAINING THE TANKS
See Figure 11.
To help prevent tank corrosion and keep moisture out of the
air used, the air tanks of the compressor should be drained
daily.
NOTE: The air compressor has two separate tanks. Be sure
to open drain valves for both and perform this operation for
both tanks.
To drain:
Turn the air compressor off.
Pull the ring on the pressure relief valve to release until
pressure gauge reads less than 20 psi.
Release the ring.
TANK DRAIN
VALVES (2)
OFF
ON
Fig. 11
Rotate drain valves counterclockwise to open.
Tilt tank to drain moisture from tank into a suitable
container.
NOTE: Condensate is a polluting material and should be
disposed of in compliance with local regulations.
If drain valves are clogged, release all air pressure, remove
and clean valves, then reinstall.
WARNING:
Unplug the air compressor and release all air from
the tanks before servicing. Failure to depressurize
tanks before attempting to remove valve may
cause serious personal injury.
Rotate drain valves clockwise until tightly closed.
13
Page 14
OPERATION
5 Gallon
18,8 Litre
18,7 Litro
4.4 SCFM @ 90PSI
0,12 m /Min @ 621 kPa
0,12 m /Min @ 6,21 bar
145 Max PSI
999 KpA
9,99 bar
3
3
1
2
MINI WHEELBARROW COMPRESSOR
OIL LUBE PUMP
-
POMPE A HULE - BOMBA CON LUBRICACION DE ACIETE
ON
OFF
O
I
CHECKING THE SAFETY VALVE
See Figure 12.
DANGER:
Do not attempt to tamper with the safety valve.
Anything loosened from this device could fly up
and hit you. Failure to heed this warning could
result in death or serious personal injury.
The safety valve will automatically release air if the air tank
pressure exceeds the preset maximum. The valve should
be checked before each day of use by pulling the ring by
hand.
Turn the air compressor on and allow the tanks to fill. The
compressor will shut off when the pressure reaches the
preset maximum.
Turn the air compressor off.
Pull the ring on the safety valve to release air for three to
five seconds.
Release the ring. Air must immediately stop escaping
when the ring is released. Any continued loss of air after
releasing the safety valve ring indicates a problem with
the safety valve. Discontinue use and seek service before
continued use of the air compressor.
SAFETY VALVE
TO RELEASE AIR
RING
Fig. 12
RESET
BUTTON
Fig. 13
WARNING:
If air leaks after the ring has been released, or
if the valve is stuck and cannot be actuated by
the ring. Do not use the air compressor until
the safety valve has been replaced. Use of the
air compressor in this condition could result in
serious personal injury.
RESET BUTTON
See Figure 13.
When amperage into the air compressor exceeds the
specified amperage, the air compressor will automatically
shut off.
To reset the air compressor:
Turn the air compressor off.
Unplug the air compressor for 30 minutes.
NOTE: If the overload protector is actuated, the motor
must be allowed to cool down for 30 minutes before
manual resetting.
Press the reset button.
Plug the air compressor into an approved outlet.
Turn the air compressor on.
14
Page 15
ON
OFF
O
I
ON
MAINTENANCE
WARNING:
When servicing use only identical RIDGID®
replacement parts. Use of any other parts may
create a hazard or cause product damage.
WARNING:
Always wear safety goggles or safety glasses with
side shields during power tool operation or when
blowing dust. If operation is dusty, also wear a
dust mask.
WARNING:
Always release all pressure, disconnect from
power supply, and allow unit to cool to the touch
before cleaning or making repairs on the air
compressor.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
As a routine part of air compressor maintenance, it is also
advised that the oil is routinely checked for proper levels.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals
can damage, weaken or destroy plastic which
may result in serious personal injury. Electric tools
used on fiberglass material, wallboard, spackling
compounds, or plaster are subject to accelerated
wear and possible premature failure because
the fiberglass chips and grindings are highly
abrasive to bearings, brushes, commutators,
etc. Consequently, we do not recommend using
this product for extended work on these types
of materials. However, if you do work with any of
these materials, it is extremely important to clean
the product using compressed air.
AIR FILTER
AIR FILTER COVER
SCREW
Fig. 14
LUBRICATION
All of the bearings in this product are lubricated with a
sufficient amount of high grade lubricant for the life of the
unit under normal operating conditions. Therefore, no further
lubrication is required.
REPLACING THE AIR FILTER
See Figure 14.
Remove the air filter screw.
Remove the air filter cover.
Remove the air filter.
Install new air filter.
Install the air filter cover.
Install the air filter screw.
REPLACING THE SEMI-PNEUMATIC TIRE
Remove the screws installed through the holes and metal
brackets in the tire rod.
Remove the tire rod and pneumatic tire assembly.
Remove hitch pins and washers on either side of semi-
pneumatic tire.
Remove semi-pneumatic tire.
To install new semi-pneumatic tire, see Installing the
Semi-Pneumatic Tire in Assembly.
15
Page 16
ON
OFF
O
I
ON
MAINTENANCE
CHANGING THE OIL
See Figure 15.
Replace the oil after the first 100 hours of operation and
every 100 hours following the first oil change.
Place a suitable container underneath the drain to collect
used oil.
Remove the drain plug with a 8 mm socket or wrench.
When the used oil has drained, reinstall the drain plug
and tighten with the wrench.
Remove the dipstick.
To refill, use a funnel to pour oil into the fill hole. Refill only
with synthetic oil SAE 5W50.
NOTE: Avoid refilling with too much oil. Ensure that the
level of the oil does not exceed the maximum reference
level on the dipstick. The recommended amount of oil for
refilling is 7.2 oz. (204 g).
Reinsert the dipstick securely into the oil fill hole.
DIPSTICK
OIL FILL HOLE
DRAIN PLUG
COLLECT USED OIL IN A
SUITABLE CONTAINER
Fig. 15
16
Page 17
TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Compressor will not run Loss of power or overheating
No electrical power
Blown shop/house fuse
Shop/house breaker open
Thermal overload open
Pressure switch bad
Tank is full of air
Motor hums but cannot run or runs
slowly
Thermal overload protector cuts out
repeatedly
Low voltage
Wrong gauge wire or length of exten-
sion cord
Shorted or open motor winding
Defective check valve or unloader
Low voltage
Lack of proper ventilation/room tem-
perature too high
Wrong gauge wire or length of exten-
sion cord
Check for proper use of extension
cord
Check to be sure unit is plugged in
Check fuse/breaker
Replace shop/house blown fuse
Reset shop/house breaker, determining
why problem happened
Motor will restart when cool
Replace pressure switch
Compressor will turn on when tank
pressure drops to cut-in pressure
Check with voltmeter
Check for proper gauge wire and cord
length
Take compressor to service center
Take compressor to service center
Check with voltmeter
Move compressor to well-ventilated
area
Check for proper gauge wire and cord
length
Air tank pressure drops when compressor shuts off
Excessive moisture in discharge air Excessive water in air tanks
Compressor runs continuously Defective pressure switch
Air output lower than normal Broken inlet valves
Loose connections (fittings, tubing,
etc.)
Loose drain valve
Check valve leaking
High humidity
Excessive air usage
Piston rings are worn
Connections leaking
Check all connections with soap and
water solution and tighten
Tighten drain valve
Take compressor to service center
DANGER:
Do not disassemble check valve,
tank drain valves or safety relief valve
with air in tank — bleed tanks.
Drain tanks
Move to area of less humidity; use air
line filter
Take compressor to service center
Decrease air usage; compressor not
large enough for tool’s requirement
Replace piston rings; Call customer
service for assistance
Take compressor to service center
Tighten connections
17
Page 18
WARRANTY
RIDGID® AIR COMPRESSOR
3 YEAR LIMITED SERVICE WARRANTY
Proof of purchase must be presented when requesting warranty service.
This product is manufactured by One World Technologies,
Inc. The trademark is licensed from RIDGID, Inc. All warranty
communications should be directed to One World Technologies, Inc., attn: RIDGID Hand Held and Stationary Power Tool
Technical Service at (toll free) 1-800-4-RIDGID.
90-DAY SATISFACTION GUARANTEE POLICY
During the first 90 days after the date of purchase, if you are
dissatisfied with the performance of this RIDGID® Air Compressor for any reason you may return the tool to the dealer
from which it was purchased for a full refund or exchange.
To receive a replacement tool you must present proof of
purchase and return all original equipment packaged with
the original product. The replacement tool will be covered by
the limited warranty for the balance of the 3 YEAR service
warranty period.
WHAT IS COVERED UNDER THE 3 YEAR
LIMITED SERVICE WARRANTY
This warranty covers all defects in workmanship or materials
in this RIDGID® air compressor for the three-year period
from the date of purchase. This warranty is specific to this
air compressor. Warranties for other RIDGID® products may
vary.
HOW TO OBTAIN SERVICE
To obtain service for this RIDGID® Air Compressor, you must
return it; freight prepaid, or take it in to an authorized service
center for RIDGID® branded Air Compressors. You may
obtain the location of the authorized service center nearest
you by calling (toll free) 1-800-4-RIDGID or by logging on to
the RIDGID® website at www.ridgid.com. When requesting
warranty service, you must present the original dated sales
receipt. The authorized service center will repair any faulty
workmanship, and either repair or replace any part covered
under the warranty, at our option, at no charge to you.
WHAT IS NOT COVERED
This warranty applies only to the original purchaser at retail
and may not be transferred. This warranty only covers
defects arising under normal usage and does not cover
any malfunction, failure or defect resulting from misuse,
abuse, neglect, alteration, modification or repair by other
than an authorized service center for RIDGID® branded Air
Compressors. Consumable accessories provided with the
tool such as, but not limited to, blades, bits and sand paper
are not covered.
RIDGID, INC. AND ONE WORLD TECHNOLOGIES, INC.
MAKE NO WARRANTIES, REPRESENTATIONS OR
PROMISES AS TO THE QUALITY OR PERFORMANCE
OF ITS POWER TOOLS OTHER THAN THOSE SPECIFICALLY STATED IN THIS WARRANTY.
ADDITIONAL LIMITATIONS
To the extent permitted by applicable law, all implied warranties, including warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, are disclaimed. Any
implied warranties, including warranties of merchantability
or fitness for a particular purpose, that cannot be disclaimed
under state law are limited to three years from the date of
purchase. One World Technologies, Inc. and RIDGID, Inc.
are not responsible for direct, indirect, incidental or consequential damages. Some states do not allow limitations on
how long an implied warranty lasts and/or do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you. This
warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
One World Technologies, Inc.
Hwy. 8
Pickens, SC 29671
18
Page 19
NOTES
19
Page 20
OPERATOR’S MANUAL
5 GALLON PORTABLE
AIR COMPRESSOR
OIL LUBRICATED
OL50145MW
987000-280
11-21-07 (REV:00)
Customer Service Information:
For parts or service, contact your nearest RIDGID® authorized service center. Be
sure to provide all relevant information when you call or visit. For the location of
the authorized service center nearest you, please call 1-800-4-RIDGID or visit us
online at www.ridgid.com.
The model number of this product is found on a plate attached to the motor housing. Please record the serial number in the space provided below. When ordering
repair parts, always give the following information:
Model No.
Serial No.
OL50145MW
20
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