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       M459382B.6

 

 
 
 
 
 

 

 

Owner’s Manual 

Gasoline Stationary Air Compressor  

 

(For Outdoor Use only)

 

Instructions for Installation/Set-up, Operation, Maintenance, & Storage 

 

This NorthStar® belt-driven compressor has a 2-stage 2-cylinder pump, an engine with cast iron cylinders for long 
life, and a compact design rated for 175 maximum PSI. Its continuous-duty rating ensures long-lasting performance, 
and its cast iron pump head ensures superior heat dissipation. Lift eyes are provided for lifting or tying down.  

 

Read and understand this Owner’s Manual completely before using and keep this manual for review. Failure to 
properly set up, operate, and maintain this compressor in accordance to this manual could result in injury or death to 
operator or bystanders. 

 

WARNING: SPECIAL HAZARDS 

 

CO Poisoning:

 Exhaust from engine contains carbon monoxide, a poisonous gas that can cause carbon monoxide 

poisoning and possible death if inhaled. 

 

Injection Injury

: High-pressure air stream can pierce skin and underlying tissues, leading to serious injury and possible 

amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage. 

 

Flying Debris

: High-pressure air stream can cause flying debris and possible surface damage. 

 

Electric shock

: Operating equipment in wet conditions or near water can cause electric shock. 

 

Not For Breathing Air: 

NorthStar compressors are NOT designed, intended, or approved for supplying breathing air.  No 

compressed air should be used for breathing unless air is treated in accordance with applicable standards.

 

 

Fire/Explosion

: Sparks from air powered tool heads or attachments can ignite fuel or other flammable liquids or vapors in 

the vicinity.  Exceeding the maximum pressure for air tools or attachments could cause them to explode. 

 

Burns

: Compressor pump, engine and discharge tubing are hot surfaces that can cause burn injuries. 

Detailed safety

 

information about these hazards appears throughout this manual. 

Equipment Protection Quick Facts 

Inspect Upon Delivery:

 FIRST! Inspect for missing or damaged components. See 

“Initial Set-Up”

 section for where 

to report missing or damaged parts. 

 

Add Engine Oil:

 Engine is shipped 

without oil

. See engine manual for instructions on capacity and viscosity 

recommendations. 

 

Check Pump Oil: 

Pump is shipped with oil. Check the pump oil level before starting. See “

Preparing for Operation

” 

section of this Owner’s Manual for capacity and viscosity. 

 

Use Mechanical Lifting Equipment:

 Compressor is shipped on a pallet and is too heavy to handle manually. Use 

proper lifting equipment for unloading and moving to installation site. Lifting eyes are provided. 

 

Run Pump Unloaded for Break-in Period:  

Before initial use, open ball valve and run compressor for 20 minutes to 

break in pump parts.

 

Follow Maintenance Schedule: 

Engine, pump, air filter, and tank require periodic inspection and servicing to keep 

compressor functioning efficiently. See “

Maintenance Schedule Summary

” for frequency of servicing.

 

 

 

ITEM NUMBER:  459382 
SERIAL NUMBER: _____________ 

Summary of Contents for M459382B.6

Page 1: ...for supplying breathing air No compressed air should be used for breathing unless air is treated in accordance with applicable standards Fire Explosion Sparks from air powered tool heads or attachments can ignite fuel or other flammable liquids or vapors in the vicinity Exceeding the maximum pressure for air tools or attachments could cause them to explode Burns Compressor pump engine and discharg...

Page 2: ...all Spark Arrestor if Required 12 OPERATION 13 Follow Safety Rules for Operation 13 Preparing for Operation 13 Check Add Oil to the Engine and Pump 13 Check and Fill Gasoline Tank 14 Inspect Fuel System Check for Leaks 14 Start Up Procedures 14 Air Hose and Tool Use 15 Attaching Air Hose and Tools 15 Using Compressor for Spraying 16 Moisture in Compressed Air 16 Shutdown Procedures 16 STORAGE 17 B...

Page 3: ... if Equipped 20 Keep Compressor Clean 20 TROUBLESHOOTING 21 PARTS EXPLOSION MODEL 459382 REV B 6 22 PARTS LIST MODEL 459382 REV B 6 23 PUMP EXPLOSION REV B 6 24 PUMP PARTS LIST REV B 6 25 PUMP KITS REV B 6 26 PNEUMATIC SCHEMATIC 27 APPENDIX A LUBRICANTS AND COMPATIBILITY 28 Alternate Lubricants 28 LIMITED WARRANTY 29 ...

Page 4: ...fety apparel during operation including safety glasses with side and top protection Ear protection is also recommended if working near any operating engine Adult control only Only trained adults should set up and operate the air compressor Do not let children operate Under The Influence Never operate or let anyone else operate the air compressor while fatigued or under the influence of alcohol dru...

Page 5: ...da GX390 Engine Displacement cc 389 cc DIMENSIONS COMPONENTS Length 41 Width 18 Height 40 Weight 420 lbs Mounting Hole Diameter 0 5 Suggested Mounting Bolt Diameter 7 16 SUPPLIES REQUIRED not included Engine Oil Refer to engine owner s manual Pump Oil shipped with oil but refills required SAE 30 non detergent pump oil 4043 Pump Oil Capacity 33 8 oz ...

Page 6: ... to safety check valve and then to the storage tank It becomes very hot during use and can cause severe burns Never touch 9 Tank Drain Valve Used to remove moisture from air after compressor is shut off and air emptied from tank Drain moisture daily after each use 10 ASME Safety Check Valve Automatically releases air if tank exceeds preset pressure max of 200 PSI A check valve is a pressure releas...

Page 7: ...uation which if not avoided will result in death or serious injury WARNING orange indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION yellow used with the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury CAUTION yellow without the safety alert symbol is used to address practices not re...

Page 8: ...or not legible order new labels from NorthStar Product Support at 1 800 270 0810 On Product Warning Labels Location Part numbers Description 1 788997 Air Compressor Instructions 2 788937 Poisonous Gas 3 788936 Burn Hazard Hot Muffler 4 788935 Fuel Fire Explosion Hazard 5 789059 Engine Electric Start Battery Hazard 6 788924 Air Compressor Safety ...

Page 9: ...9 Safety Decals To order replacement safety labels call NorthStar Product Support at 1 800 270 0810 1 2 3 6 5 ...

Page 10: ...r cooling and combustion air Do not allow debris to accumulate or block airflow Do not operate with a tarp blanket or cover surrounding the machine Do not place any objects against or on top of the unit Exhaust WARNING Exhaust modification hazard Never attempt to attach ductwork to the muffler system to allow for installation inside an enclosure This could cause heat build up and increased exhaust...

Page 11: ... could cause damage to the receiver tank if fastened directly to the truck bed It is the user s responsibility to provide an adequate means of fastening the unit in these applications Direct exhaust and other hot parts of compressor away from the cab or flammable equipment Make sure the exhaust clears the side of the bed Securely close and preferably drain gas tank to prevent fuel leakage during t...

Page 12: ...wn 5 Coat terminals and cable ends with grease if they are to remain permanently connected CAUTION Battery connection hazard Be careful not to connect the battery in reverse polarity as this will short circuit the battery charging system Since the engine has not yet been grounded to the battery ground your uninsulated tool handles can cause a short circuit if they also touch a grounded part while ...

Page 13: ...eration Make sure that any regular maintenance has been performed as prescribed in Maintenance Repair section Refer to the engine Owner s Manual for engine maintenance instructions Drain receiver tank of any moisture Inspect for oil leaks Check for any unusual noise vibration Ensure the area around compressor is free from rags tools debris and flammable or explosive materials Ensure belt guards an...

Page 14: ...lowed to cool for at least 2 minutes WARNING Hot engine hazard A running engine is hot enough to ignite fuel Never add fuel or remove gas cap if engine is running or still hot Let cool at least 2 minutes 2 Remove fuel cap 3 Add gas through the fill opening Do not overfill Allow at least of empty space below fill neck to allow for gas expansion 4 Replace fuel cap securely before starting engine 5 C...

Page 15: ...sult and cause explosion WARNING NEVER over pressurize the receiver tank or air tools beyond nameplate capacity Do not operate the unit at pressures temperatures or rotational speeds in excess of manufacturer s recommendations Be sure all accessory equipment and system components meets or exceeds the pressures and temperatures developed by the unit Exceeding the pressure rating could cause them to...

Page 16: ...ot acceptable for your application an external air dryer must be added to the system Shutdown Procedures Normal Shutdown 1 Move the pressure switch lever to OFF and close the ball valve to stop shut off air flow 2 Turn engine switch to OFF position 3 Turn fuel valve lever to OFF position 4 Drain air from the tank by releasing pressure Disconnect hoses and open the ball valve or pull the ring on th...

Page 17: ...ain moisture from tank by opening the drain valve located at the bottom of the tank Choose a storage location An appropriate storage location is Clean and dry Away from sources of heat open flames sparks or pilot lights even if gas tank is empty Residual gasoline could ignite Away from extreme high or low temperatures Long term storage preparation Prepare engine for long term storage if you will n...

Page 18: ...row it in the trash pour it on the ground or pour it down a drain No modifications Never modify or alter the compressor in any way Modifications can create serious safety hazards and will also void the warranty Inspect Safety Relief Valve This valve should be inspected on a weekly basis if used regularly or the first time it is being used after a prolonged period of storage The safety valve automa...

Page 19: ...on after every 2 years of service See Inspection of Unfired Pressure Vessels volumes 2 9 August 2001 Bill McStraw available on line at NTIS WARNING Air tank hazards Failure to replace a rusted air receiver tank could result in tank rupture or explosion which could cause substantial property damage severe personal injury or death Never modify or repair a tank Obtain replacement from service center ...

Page 20: ...ntakes to become blocked If dust or debris accumulates in the compressor clean the compressor with a damp cloth or soft bristle brush Note Do not spray compressor with a garden hose or pressure washer Water may enter the compressor and cause damage to the engine and pump IMPORTANT If a part needs replacement only use parts that meet the manufacturer s part number specifications Replacement parts t...

Page 21: ...or ambient temperature Drain existing lubricant and refill with proper lubricant G Belt tension too tight or sheaves not aligned Check tension alignment H Air leaks in discharge piping Check tubing connections Tighten joints or replace as required I Compressor components leaky broken loose Inspect components Clean or replace as required J Loose flywheel or engine pulley excessive end play in engin...

Page 22: ...22 Parts Explosion Model 459382 Rev B 6 ...

Page 23: ...eve Brass 1 14 34740 Compression Long Nut 1 15 34746 Plastic Tube 1200 3 67 ft 16 34699 Air Gauge Liquid Filled 1 17 780433 Street Tee 1 18 35121 Safety Valve ASME 200PSI 1 19 779227 Elbow 90 degree 1 20 788567 Unloader 1 21 34937 5 8 Compression x NPT Elbow 1 22 34723 5 8 Compression Sleeve 2 23 779577 Tank Drain Valve 1 24 34724 5 8 Compression Nut 2 25 788188 30 Gallon Tank 1 26 788999 NorthSta...

Page 24: ...24 Pump Explosion Rev B 6 ...

Page 25: ... A 21 N A Bolt M8 x 25 10 N A 22 788880 Oil sight gauge 1 N A 23 789386 Oil filling plug 1 N A 24 789387 Bearing 2 N A 25 N A Crankshaft and balancer 1 N A 26 789388 Pulley key 1 N A 27 N A Rear bearing seat gasket 1 Kit 2 28 N A Rear bearing seat 1 N A 29 788882 Breathing cover 1 N A 30 N A Oil seal 1 Kit 2 31 789391 Balanced pulley 1 N A 32 N A Plate washer 1 Kit 8 33 N A Bolt M12 x 50 1 34 N A ...

Page 26: ... Cylinder and Piston Kit Part 789380 Ref Description Qty Kit Qty 10 Cylinder 1 1 11 Cylinder gasket 1 12 Piston ring 1 13 Piston 1 Kit 6 Rod Kit Part 789382 Ref Description Qty Kit Qty 14 Rod 1 1 42 Rod 1 Kit 7 Piston Ring Kit Part 789381 Ref Description Qty Kit Qty 11 Cylinder gasket 2 1 12 Piston ring 1 40 Piston ring 1 Kit 8 Plate and Bolt Kit Part 789392 Ref Description Qty Kit Qty 32 Plate wa...

Page 27: ...27 VALVE RELIEF SAFTEY PUMP 30 GALLON TANK UNLOADER IDLE DOWN RELIEF VALVE SAFTEY Pneumatic Schematic ...

Page 28: ... Modified Alkyds indicates trademark of DuPont Corporation Neoprene Natural Rubber SBR Rubber Acrylic Paint Lacquer Varnish Polystyrene PVC ABS Polycarbonite Cellulose Acetate Latex EPR Acrylics Phenoxy Polysulfones Styrene Acrylonitile San Butyl Alternate Lubricants You may use a petroleum based lubricant that is premium quality does not contain detergents contains only anti rust anti oxidation a...

Page 29: ...t is to be replaced or repaired is the sole decision of NorthStar NorthStar will not provide for replacement of complete products due to defective parts Any costs incurred due to replacement or repair of items outside of a NorthStar approved facility is the responsibility of the buyer and not covered under warranty Transportation costs to and from service center is the responsibility of the custom...

Page 30: ...30 Assembled by Northern Tool Equipment Company Inc Burnsville MN 55306 NorthernTool com ...

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