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Rolair PORTABLE AIR COMPRESSOR User Manual

Rolair PORTABLE AIR COMPRESSOR
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PARTS
Genuine ROLAIR® replacement parts are sold nationwide through a network of authorized dealers and service centers.
Please contact the dealership where your air compressor was purchased or our factory Customer Service Department if
you need help troubleshooting, obtaining parts, or locating an authorized ROLAIR
® service representative.
PORTABLE AIR COMPRESSOR
OWNER’S MANUAL
WARNING
COMPRESSOR DISCHARGE AIR MAY CONTAIN HYDROCARBONS AND OTHER
CONTAMINANTS! DO NOT USE DISCHARGE AIR FOR BREATHING!
RECORD OF PERTINENT INFORMATION
Make a permanent record of the model and serial number of your new air compressor here. You’ll save time and
expense by including this reference information when requesting service or replacement parts.
Place & Date of Purchase Volts
Model HZ
Serial # HP
With the tank gauge at 0 PSI and air line(s) disconnected, close drain valve(s) and record the amount of time it takes
to build tank pressure on the space provided. Periodically test your air compressor against this pump-up time to
determine if it is operating correctly. If time test is considerably off, contact your local ROLAIR
® representative to
arrange service.
From 0 to ______*PSI From 0 to ______*PSI
Date Min Sec Date Min Sec
To order replacement parts:
1. Give compressor model number
2. Give compressor serial number
3. Name of part
4. Part number
5. Quantity required
606 South Lake Street > P.O. Box 346 > Hustisford, WI 53034-0346 > 920.349.3281 > fax 920.349.3691 > www.rolair.com

Questions and Answers:

Rolair PORTABLE AIR COMPRESSOR Specifications

General IconGeneral
BrandRolair
ModelPORTABLE AIR COMPRESSOR
CategoryAir Compressor
LanguageEnglish

Summary

Safety Warnings

Risk of Asphyxiation

Serious injury or death from inhaling compressed air, which may contain carbon monoxide or toxic vapors.

Risk of Bursting

Serious injury or death from air tank explosion due to improper maintenance or modifications to air receivers.

Risk of Electrocution or Electrical Shock

Serious injury or death from improper grounding, electrical repairs by unqualified personnel, or wet conditions.

Risk of Explosion or Fire

Serious injury or death from fire or explosion caused by contact with hot engine parts or ignition sources.

Risk from Moving Parts

Serious injury from contact with moving parts such as belts, pulleys, or fans.

Risk of Burn

Serious burn injuries from touching hot metal parts like the compressor head or muffler during or after operation.

Risk of Injury from Lifting

Serious injury from attempting to lift an object that is too heavy for one person.

Flying Objects

Serious injury from loose debris propelled at high speeds from the compressed air stream.

Risk of Unsafe Operation

Serious injury or death from operating the compressor in an unsafe manner, or when fatigued or under the influence.

Risk of Damage to Air Compressor or Property

Major repair expenses from improper transport or operation; oil leaks can damage surfaces.

System Controls

Safety-Relief Valve

Discharges tank pressure at a set point when systems fail. Do not tamper with or eliminate.

Manual Overload / Motor Reset

Protects the motor from overheating by tripping a reset button. Allow motor to cool before resetting.

Pressure Switch

Operates compressor automatically between pressure settings. Use 'Off' position to stop.

Regulator – Working Pressure

Adjusts output/line pressure. Lift knob to adjust, push down to lock. Do not exceed tool pressure ratings.

Pressure Gauge(s)

Measures tank or storage pressure and output/working pressure attached to the regulator.

Drain Valve(s)

Allows daily draining of moisture from the compressor storage tank(s).

Air Intake Filter

Prevents foreign matter from entering the engine or compressor pump. Clean or replace as needed.

Pilot-Unloader Valve

Used on gas units for continuous operation; discharges air when storage tank reaches top pressure.

Sight Gauge/Dipstick

Used to check and maintain the proper oil level of the compressor pump and engine.

Check Valve

Seals off and maintains tank pressure after top end pressure setting is reached.

Breather/Oil Fill Plug

Relieves crankcase pressure created by the piston movement in the pump cylinder.

Automatic-Idle Control

Decreases engine speed when top end pressure setting is reached for gas-powered units.

Cold-Start Valve

Allows motor/pump to warm up before being subjected to tank pressure.

Schmidt Belt-Tightening Device

Unique system for maintaining proper belt tension on gas-powered belt-driven units.

Vibration Dampener(s)

Rubber pads beneath tank assembly that protect from vibration.

Engine Kill Switch

Installs to easily stop the engine. Must be in 'On' position to start.

Engine Choke

Helps start a cold engine when fully closed. Must be fully open for proper operation.

Fuel Shut-Off Valve

Stops fuel flow when engine is not operated. Should be closed during transport.

Pre-Start Checklist

Operation in a Level Position

Ensure unit is level for splash-lubricated pumps to keep the dipper submerged in oil.

Operation Area

Operate in a clean, dry, well-ventilated area, at least 18" from walls, and away from explosive vapors.

Oil Level Check

Check oil level daily and change at regular intervals as per maintenance section.

Intake Elements Inspection

Inspect, clean, or change intake elements regularly to prevent pump and engine wear.

Air Hose and Extension Cords

Use properly sized air hose. Refer to chart for proper gauge and maximum length of extension cords.

Power Source

Do not use a generator as the power source due to high starting amp draw requirements.

Bolts, Belts, and Hardware

Check tension of bolts, belts, and hardware regularly to prevent vibration and premature failure.

Vibration Pads

Maintain rubber vibration pads beneath tank assembly to prevent premature compressor failure.

Drain Moisture from Air Tanks

Drain air tank(s) daily after each use to combat internal tank corrosion.

Engine RPM Settings

Do not alter factory RPM settings on gas-powered compressors; alterations void warranty.

Operation

Direct-Drive Electric Operation

Follow pre-start checklist, open drain valve, set pressure switch to 'On/Auto', and adjust regulator.

Belt-Drive Electric Operation

Follow similar procedures. Limit starts per hour to prevent motor overload.

Constant-Speed Operation

Used for heavy use to extend motor life. Always shut off power at breaker before plugging/unplugging.

Dual-Control Operation

Allows transition between start/stop and continuous-running. Flip switch to 'Off' before plugging/unplugging.

Duty Cycle

Belt-drive units have 100% duty cycle motors. Some direct-drive models have 70% duty cycle.

Gas Powered Operation

Refer to system controls for engine features. Ensure air flow to regulator is closed before attaching hose.

Maintenance

High Altitude Operation

Output decreases at higher elevations. Electric motors may need upgrading due to less dense air.

Maintenance Schedule

Daily, weekly, monthly, and quarterly checks for oil, filters, belts, and general system condition.

Torque Chart

Provides torque specifications (inch/lb) for various pump types for head bolts, cylinder bolts, etc.

Pilot Valve Adjustment

Instructions for resetting differential and setting top-end pressure for the pilot valve.

Schmidt Belt-Tightening Device

Procedure for tightening belt tension on gas units by loosening hold-down bolts and rotating an adjusting bolt.

Drive Pulleys

Ensure proper pulley alignment and drive belt tension to prevent motor overloading and bearing failure.

Gasoline Engine RPM Settings

Factory set RPMs for maximum efficiency. Adjusting above specification voids warranty.

Troubleshooting

Pump is Slow to Build Tank Pressure

Causes include loose belts, leaks, blown gaskets, or obstructed filters. Solutions involve adjustment or replacement.

Excessive Oil Consumption

Causes include dirty filters, worn piston rings, or scored cylinders. Solutions involve cleaning or service.

Knocking Noise

May be caused by loose pulley/flywheel or internal pump problems. Adjust belt tension or seek service.

Overheating Compressor

Caused by poor ventilation, improper rotation, or thermal overload. Relocate unit or contact electrician.

Electric Motor Dead, Will Not Even Hum

Check for loose motor leads, electrical connections, or a short in the power cord.

Motor Trips Overload/Reset Button

Caused by overload issues, improper extension cord gauge, or loose thru bolts. Replace overload or use heavier cord.

Gasoline Engine is Hard to Start

Issues include spark plug problems, improper oil level, or old gas. Install proper spark plug or use fresh fuel.

Guarantee and Quality

Warranty Information

Compressors are warranted against defects for 12 months from purchase or 18 months from manufacture.

Company Commitment to Quality

Associate Engineering Corporation is devoted to quality control and research for product improvement.

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