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24 590 52 Rev. --

KohlerEngines.com

Troubleshooting

Do not attempt to service or replace major engine components, o

r any items that require special timing or adjustment procedure

s. 

This work should be 

performed by a Kohler authorized dealer

.

Possible Cause

Problem

No Fuel

Tank  Nearly  Empty

Improper 

Fuel

Dirt In 

Fuel Line

Broken 

Fusible Link

Dirty/

Restricted  V

aporizer/ Regulator  Inlet Filter

Dirty  Debris  Screen

Incorrect  Oil Level

Engine 

Overloaded

Dirty 

Air 

Cleaner

Faulty  Spark  Plug

Dirty/

Restricted  V

aporizer/ Regulator

Will Not Start

●●

Hard Starting

●●

Stops Suddenly

●●

Lacks Power

●●

Operates Erratically

●●

Knocks or Pings

●●

Skips or Misfi

 res

●●

Backfi

 res

●●

Overheats

●●

High Fuel  Consumption

●●

Summary of Contents for command pro PCH680

Page 1: ...ines com Please review carefully as it provides your speci c rights and obligations To maintain compliance with applicable emission regulations exhaust system backpressure may not exceed limits which...

Page 2: ...xide is odorless colorless and can cause death if inhaled WARNING High Pressure Fluids can puncture skin and cause severe injury or death Do not work on fuel system without proper training or safety e...

Page 3: ...K Air Cleaner Cover L Element Cover M Precleaner N Paper Element O Air Cleaner Base P Rubber Seal Q Low Pro le Air Cleaner R Debris Screen S Oil Filter T Vaporizer Regulator U Vaporizer Regulator Inl...

Page 4: ...nes can burn out starter motor NOTE Upon start up a metallic ticking may occur Run engine for 5 minutes If noise continues run engine at mid throttle for 20 minutes If noise persists take engine to yo...

Page 5: ...low pro le precleaner if equipped Every 100 Hours1 Check oil cooler ns clean as necessary if equipped Change oil Replace low pro le air cleaner element if equipped Remove cooling shrouds and clean coo...

Page 6: ...stall and secure dipstick Change Oil and Filter Change oil while engine is warm 1 Clean area around oil ll cap dipstick and drain plug Remove drain plug and oil ll cap dipstick Allow oil to drain comp...

Page 7: ...eous vapor state Lock O assembly opens and closes controlling fuel ow from supply tank before reaching vaporizer regulator Over time fuel deposits can accumulate inside vaporizer regulator Removing th...

Page 8: ...if equipped Ensure end of breather tube is properly connected Oil Cooler if equipped 1 Clean ns with a brush or compressed air 2 Remove two screws securing oil cooler and tilt to clean back side 3 Rei...

Page 9: ...r Possible Cause Problem No Fuel Tank Nearly Empty Improper Fuel Dirt In Fuel Line Broken Fusible Link Dirty Restricted Vaporizer Regulator Inlet Filter Dirty Debris Screen Incorrect Oil Level Engine...

Page 10: ...dditional speci cation information can be found in service manual at KohlerEngines com Any and all horsepower hp references by Kohler are Certi ed Power Ratings and per SAE J1940 J1995 hp standards De...

Page 11: ...11 24 590 52 Rev KohlerEngines com...

Page 12: ...24 590 52 Rev KohlerEngines com 2018 by Kohler Co All rights reserved...

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