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Hazard Level 

Potential of Hazard 

How to Avoid Hazard 

 

Risk of Asphyxiation 

Serious injury or death may occur from 
inhaling compressed air.  The air stream may 
contain carbon monoxide, toxic vapors, or 
solid particles. 

Never inhale compressed air directly from the 
pump, receiver, or from a breathing device 
connected to the air compressor. 

Sprayed materials such as paint, stucco, 
insecticides, solvents, etc.  contain harmful 
vapors and poisons that may cause serious 
injury or death if inhaled. 

Operate compressor only in a well-ventilated 
area.  Use a respirator device and follow the 
manufacturer’s recommendations for their 
spray equipment.  Keep compressor at least 
25 feet away from spray equipment.  

Serious injury or death may occur if the 
exhaust from gas-powered small engines is 
inhaled.  Engine exhaust fumes contain 
poisonous, carbon monoxide which is odorless 
and colorless. 

Operate gas-powered compressors only in a 
well-ventilated area.  Avoid inhaling engine 
exhaust fumes, and never run a small gas-
powered engine in a closed building or 
confined area without adequate ventilation. 

 

Risk of Bursting 

Serious injury or death may occur from an air 
tank explosion if the air tanks are not properly 
maintained or if modifications, alterations or 
repairs are attempted to the air receivers. 

Drain air tanks daily or after each use.  Never 
drill into, weld, patch or modify the air tanks.  
If a leak develops, replace the tank 
immediately or replace the entire compressor. 

Serious injury or death may occur if 
modifications are made to the pilot unloader 
valve, 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 safety valve 
on a regular basis and never operate without a 
factory approved safety valve. 

Serious injury may occur if accessories or 
attachments are operated above the 
manufacturer’s recommended pressure 
ratings, causing them to explode or fly apart. 
 

Do not use air tools or attachments before 
reading the owner’s manual to determine the 
maximum pressure recommendations.  Never 
exceed the manufacturer’s maximum 
allowable pressure ratings.  Do not use 
compressor to inflate small low pressure 
objects such as toys. 

 
 

 
 
 
 
 
 

Risk of Electrocution or 

Electrical Shock 

Serious injury or death could occur if the air 
compressor is not properly grounded. 

Always plug compressor into a properly 
grounded outlet which provides correct 
voltage, proper grounding and adequate fuse 
protection. 

Electrical shock may occur if compressor is 
not properly operated. 
 

Never operate air compressor in wet 
conditions or outdoors when it’s raining. Do 
not allow electric cords to lay in water. Do not 
operate with damaged power cord or with 
protective electrical covers removed. Do not 
touch plug with wet hands.  Do not pull on 
electric cord to disconnect from the outlet. 

Serious injury or death may occur if electrical 
repairs are attempted by unqualified 
personnel. 
 

Any electrical repairs or wiring performed on 
this compressor should only be performed by 
authorized service personnel in accordance 
with the National and Local Electric Codes. 

 

Risk of Explosion or Fire 

 

Serious injury or death may result from normal 
electrical sparks that occur within the motor 
and/or pressure switch. 

Always operate compressor in a well-
ventilated area free of combustible materials, 
gasoline, flammable solvents or vapors. 
Always locate compressor at least 20 feet 
away from work area if spraying flammable 
materials. 

Serious injury may occur if a fire is caused by 
overheating due to inadequate ventilation or 
restrictions to any of the compressors 
ventilation openings. 

Never place objects against or on top of an air 
compressor.  Always operate air compressor 
at least 18” away from any wall or obstruction. 
Always operate in a clean, dry and well-
ventilated area. 

Serious injury or death may occur from a fire 
or explosion if spilled gas or vapors come in 
contact with hot engine parts and ignite. 

Never attempt to fill the gas tank while the 
engine is hot or running.  Add fuel outdoors in 
a well-ventilated area.  Do not fill gas tank near 
lit cigarettes or near other sources of ignition. 

SAFETY WARNINGS

 

WARNING 

The engine exhaust from this product 
contains chemicals known to the State 
of California to cause cancer, birth 
defects or other reproductive harm. 

READ AND UNDERSTAND ALL SAFETY WARNINGS BEFORE USING AIR COMPRESSOR 

Summary of Contents for 4090HK17

Page 1: ...MODEL 4090HK17 4090RK17 SERIAL __________________ INSTRUCTION MANUAL 606 South Lake Street P O Box 346 Hustisford WI 53034 0346 920 349 3281 fax 920 349 3691 www rolair com...

Page 2: ...fuel line before transporting a gas powered air compressor If left open gas will seep past the needle seat in carburetor mix with the oil in the engine s crankcase and foul out the spark plug Replacem...

Page 3: ...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 d...

Page 4: ...ast This manual was compiled for the benefit of the operator Do not use or allow anyone else to use your air compressor until this manual is read and all safety operating instructions are understood B...

Page 5: ...imum pressure recommendations Never exceed the manufacturer s maximum allowable pressure ratings Do not use compressor to inflate small low pressure objects such as toys Risk of Electrocution or Elect...

Page 6: ...ssor Never point the air stream or tools at any point of your body other people or animals Always turn off the air compressor and drain tank pressure completely before attempting maintenance or attach...

Page 7: ...start and stop automatically within the settings of the pressure switch which are typically 105 130 PSI Do not attempt to stop the compressor by unplugging the power cord To stop simply move the lever...

Page 8: ...fe Do not alter the factory top RPM setting The engine idle speed is factory set and controlled by a black plastic Philips head screw on the carburetor A slight increase to the idle speed setting may...

Page 9: ...r Pay special attention to the intake filters Check intake filters daily 5 USE LONGER PROPERLY SIZED AIR HOSE RATHER THAN EXTENSION CORDS If an extension cord must be used please refer to the chart be...

Page 10: ...nce tripping of the motor overload due to an excessive amount of motor starts per hour CONSTANT SPEED OPERATION Constant speed or continuous running operation should be used during periods of heavy us...

Page 11: ...end using ROLAIR Premium Quality compressor oil MAINTENANCE SCHEDULE Recommendation Daily Weekly Monthly Quarterly Check Oil Level X Drain Moisture from Tank s X Inspect Air Filter s X Check for Unusu...

Page 12: ...unloading at felt muffler and cause gas engine to slow down to idle speed If pilot valve does not unload as tank pressure approaches 130 P S I G slowly turn top end setting 4 counterclockwise until pi...

Page 13: ...flywheel Tighten appropriate parts Loose belts Adjust belt tension Internal pump problem Take unit in for service Overheating compressor Poor ventilation Relocate compressor Improper pump rotation Co...

Page 14: ...ties of merchantability and fitness for purpose and of any other obligations and or liabilities on the part of Associate Engineering Corporation Associate Engineering Corporation neither assumes nor a...

Page 15: ......

Page 16: ...EL0250X012539 1 Brass Sleeve BRSL0250 2 38 Throttle Control Kit 192EGX160K1QX 1 Brass Ring BRRG0250 2 39 Gauge GA0250200GC 1 11 Pilot Unloader Valve 131B 1 42 Belt Tightener Mounting Kit SBT5HP ANGLE...

Page 17: ......

Page 18: ...H 2 Aftercooler 32901460CH 1 Crankcase 33101160CH 1 Sight Gauge 36500140CH 1 3 8 Breather Oil Fill Plug 36507050CH 1 Bolt 37300250CH 4 Bolt 37300990CH 6 Bolt 37301140CH 14 Bolt 37302530CH 2 Nut 374002...

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