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SAFETY WARNINGS 

(con’t)

 

Risk from Moving Parts 

Serious injury may occur from moving parts 
such as belts, pulleys, flywheels or fans if they 
came in contact with you or your clothing.   

Never operate the air compressor without 
protective belt guards installed.  Replace 
damaged protective covers or guards 
immediately. 

An electric air compressor with automatic 
controls can restart at any time and cause 
bodily injury when least expected. 

Always unplug air compressor and drain air
tanks completely before attempting any 
repairs or performing maintenance.  Never 
allow children or adolescents to operate air 
compressor. 

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. 
 

 

Risk of Burn 

Serious burn injuries could occur from 
touching exposed metal parts such as the 
compressor head, copper/braided discharge 
lines and engine exhaust muffler during 
operation, and even after compressor is shut 
down for sometime. 

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. 

 

Risk of Injury from Lifting 

Serious injury can result from attempting to lift 
an object that is too heavy. 
 
 

Always obtain assistance from others before 
attempting to lift any object that is too heavy 
for one person. 
 

 

Flying Objects 

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

Always wear OSHA required “287” safety 
glasses to protect the eyes during operation of 
the air compressor.  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 attaching air tools. 

 Warning 

Risk of Unsafe Operation 

Serious injury or death may occur to you or 
others if air compressor is used in an unsafe 
manner. 

Review and understand all instructions and 
warnings in your owner’s manual.  Know how 
to stop the air compressor.  Do not operate 
until you are thoroughly familiar with all of the 
controls.  Do not operate the compressor if 
fatigued or under the influence of alcohol or 
drugs.  Stay alert while operating the 
compressor and pay close attention to the 
task at hand. 

 Caution 

Risk of Damage to  

Air Compressor or Property 

Failure to transport or operate the air 
compressor properly may result in major 
repair expenses. Oil leaks will damage carpets, 
painted surfaces, flooring and other items. 

Check oil levels daily and maintain proper oil 
levels.  Always run compressor in a level, 
secure position that keeps it from tipping or 
falling during use.  Do not operate without an 
air filter or in a corrosive environment.  
 
Always transport in a level position and use 
protective mats to keep truck beds clean, etc.  
Check drain bolts regularly and do not overfill 
machinery with oil. 

 

Please note that this product may not be equipped with a spark arresting muffler.  If the compressor is operated 
around flammable materials or agricultural crops, brush, forests, and grasslands an approved spark arrestor must be 
installed, maintained and in good working order. An approved spark arrestor is legally required in the State of 
California under sections 4442 and 4443 of the California Public Resources Code Statute section 130050.   
 
This product contains chemicals, including lead, known to the state of California to cause cancer, birth defects, and 
other reproductive harm.  Always wash hands after handling this product. 

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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