TM 5-3805-280-24-1
TROUBLE SHOOTING CHART
Bold Headings depict the COMPLAINT - Subheadings depict the CAUSE
Note: Subheadings suggest order to follow in cause of troubleshooting.
Ambient Temp. > 125_F (52_C)
Short Air Cleaner Life:
Out of Level > 15 degrees
Dirty Operating Conditions
Low Oil Level
Inadequate Element Cleaning
Wrong Lube Oil
Defective Service Indicator
Dirty Cooler
Incorrect Stopping Procedure
Dirty Operating Conditions
Wrong Air Filter Element
Clogged Oil Filter Elements
Oil Pump Drive Coupling
Loose or Broken Belts
Operating Pressure Too High
Recirculation Of Cooling Air
Malfunctioning Thermostat
Malfunctioning Tan
Excessive Oil In Air:
Defective Oil Cooler Relief Valve
High Oil Level
Defective Minimum Pressure Valve
Out of Level > 15 degrees
Blocked or Restricted Oil Lines
Clogged Scavenge Orifice
Airend Malfunctioning
Scavenge Tube Blocked
Defective Scavenge Check Valve
Sep. Tank Blown Down Too Quickly
Defective Minimum Pressure Valve
Engine RPM Down:
Clogged Fuel Filter
Oil Seal Leak:
Operating Pressure Too High
Contaminated Lube Oil
Incorrect Pressure Regulator Adjustment
Blocked or Restricted Oil Lines
Malfunctioning Pressure Regulator
Malfunctioning Seal
Incorrect Linkage Adjustment
Scored Shaft
Dirty Air Filter
Malfunctioning Air Cylinder
Wrong Air Filter Element
Defective Separator Element
Ice In Regulation Lines/Orifice
Will Not Unload:
Engine Malfunctioning
Leaks in Regulator Piping
Airend Malfunctioning
Incorrect Pressure Regulator Adjustment
Malfunctioning Pressure Regulator
Malfunctioning Inlet Unloader/Butterfly Valve
Ice in Regulation Lines/Orifice
Excessive Vibration:
Rubber Mounts Damaged
Malfunctioning Fan
Drive Coupling Defective
Engine Malfunctioning
Oil In Air Cleaner:
Airend Malfunctioning
Incorrect Stopping Procedure
Oil Pump Drive Coupling
Discharge Check Valve Faulty
Low CFM:
Dirty Air Filter
Incorrect Linkage Adjustment
Incorrect Pressure Regulator Adjustment
Safety Valve Relieves:
Malfunctioning Pressure Regulator
Operating Pressure Too High
Operating Pressure Too High
Leaks In Regulator Piping
Malfunctioning Inlet Unloader/Butterfly Valve
Incorrect Pressure Regulator Adjustment
Malfunctioning Air Cylinder
Malfunctioning Pressure Regulator
Defective Minimum Pressure Valve
Malfunctioning Inlet Unloader/Butterfly Valve
Defective Separator Element
Defective Safety Valve
Wrong Air Filter Element
Defective Separator Element
Ice in Regulation Lines/Orifice
Ice in Regulation Lines/Orifice
9-2