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Gasoline Stationary Air Compressor        

Installation, Operation and Maintenance Manual

 

 

To the Owner: 

Thank you for purchasing a Powerhorse Air Compressor.  Your machine is designed for long life, 
dependability, and the top performance you demand!  Please take time now to read through this manual so you 
better understand the machine’s operation, maintenance and safety precautions.  Everyone who operates this 
machine must read and understand this manual.  The time you take now will prolong your machine’s life and 
prepare you for its safe operation. Enjoy the exceptional performance of your Powerhorse Air Compressor, the 
industry leader! 
The manufacturer reserves the right to make improvements in design and/or changes in specifications at any 
time without incurring any obligation to install them on units previously sold. 

 

Quick Facts 

Engine Oil 

Engine is shipped without oil.  Fill before starting.  
Use SAE 10W-30 motor oil. 

Pump Oil 
 

Check pump oil level before starting. 
Use SAE 30W non-detergent pump oil (part # 4043). 

Air Filter 

Replacement air filter part number is #35409. 

Maximum 
Pressure 

Item #46851 maximum pressure = 175 psi 
 

Maintenance 
Schedule 

Engine: 

Oil: change after first 20 hours, then annually or every 100 hours. 
Spark Plug: clean every 100 hrs., replace annually or every 300 hrs. 
Air Filter: clean weekly, replace annually or every 1000 hrs. 
Refer to your Powerhorse engine owner’s manual for further 
instructions. 

 

Tank: 

Drain water daily. 

 Compressor 

Pump: 

Oil: change after first 50 hours, then every 3 months or 500 hours. 

Read and understand all manuals before operating.

 

 
 
 

Any Questions, Comments, Problems or Parts Orders 

Call Powerhorse Product Support 1-866-443-2576

 
 

  

 

46851; 414cc Powerhorse Engine,  

30 Gal. Stationary 

 

M46851C

Summary of Contents for M46851C

Page 1: ...ing any obligation to install them on units previously sold Quick Facts Engine Oil Engine is shipped without oil Fill before starting Use SAE 10W 30 motor oil Pump Oil Check pump oil level before star...

Page 2: ...R use air tools or attachments without first determining the maximum pressure recommended for that equipment NEVER point air nozzles or sprayers toward people or animals NEVER touch the compressor pum...

Page 3: ...certified tank 9 Pump Oil Drain Drain the pump oil from this plug 10 Lifting Eyes Also use as tie down locations 11 Discharge Tube This tube carries compressed air from the pump to the check valve Thi...

Page 4: ...caustic acid can emit explosive gases and can cause electric shock Caution must be exercised when making connections to a battery to avoid shock and contact with the acid and to prevent any sparking t...

Page 5: ...nts with pressure in the tank NOTE Reduce tank pressure below 10 psi then drain moisture from tank daily to avoid tank corrosion Drain moisture from tank by opening the drain petcock located at the bo...

Page 6: ...f valves by pulling rings Replace safety relief valves that do not operate freely Inspect air filter element Clean if necessary Monthly Inspect for air leaks Squirt soapy water around joints during co...

Page 7: ...189 1 14 Drain valve 779577 1 15 Discharge tube 780837 1 16 5 8 comp nut 34724 2 17 5 8 comp sleeve 34723 2 18 5 8 comp elbow 34937 1 Ref Description Part Qty 19 Pump B4900 779102 1 20 Intake manifold...

Page 8: ...1 1 22 Crankcase Gasket AB4950101 1 23 Crankshaft AB4961200 1 24 Nut AB9128234 4 25 Oil Seal AB9163010 1 26 Cover D E AB2060590 1 Item Description Part Qty 27 Cover Bolt M6 x 15 SHCS AB9101094 8 28 Fl...

Page 9: ...9 Pneumatic Schematic Diagram Safety Relief Valve Pump Idle Down Unloader Safety Relief Valve 30 Gallon Tank...

Page 10: ...bricant 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 l...

Page 11: ...arranty This warranty covers parts only It will not provide for replacement of complete products due to defective parts Components not manufactured by Powerhorse are guaranteed by their manufacturer a...

Page 12: ...12 Manufactured by Northern Tool Equipment Co 2800 SouthCross Drive West P O Box 1499 Burnsville MN 55337 0499...

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