IR Ingersoll Rand 6LH1A1, Operation And Maintenance Manual

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25
MAINTENANCE SECTION
TROUBLESHOOTING GUIDE
Trouble Probable Cause Solution
Loss of Power Low air pressure Check air supply. For top performance, the air
pressure must be 90 psig (6.2 bar/620 kPa) at the
inlet.
Plugged Air Strainer Screen or
Inlet Screen Clean the Air Strainer Screen in a clean, suitable
cleaning solution. If the Screen cannot be cleaned,
replace it.
Clogged Muffler or Exhaust
Silencer Clean the Muffler Element in a clean, suitable
cleaning solution. If it cannot be cleaned, replace
it.
Worn or broken Vanes Replace the complete set of Vanes.
Damaged Rear End Plate Gasket Install a new Rear End Plate Gasket.
Worn or broken Cylinder Replace the Cylinder if it is cracked or if the bore
appears wavy or scored.
Improper lubrication or dirt
build–up Clean the Motor Unit parts and lubricate as
instructed.
Leaky Throttle Valve Worn Throttle Valve and/or
Throttle Valve Seat Install a new Throttle Valve and or a Throttle
Valve Seat.
Dirt accumulation on Throttle
Valve and/or Throttle Valve Seat Pour about 3 cc of a clean, suitable cleaning solu-
tion in the air inlet and operate the tool for about
30 seconds. Immediately pour 3 cc of light oil in
the air inlet and operate the tool for 30 seconds to
lubricate all the cleaned parts.
Gear Case gets hot Excessive grease Clean and inspect the Gear Case and gearing parts
and lubricate as instructed.
Worn or damaged parts Clean and inspect the Gear Case and gearing.
Replace worn or broken components.
Angle Head gets hot Excessive grease Clean and inspect the angle and gearing parts.
Lubricate as instructed.
Inadequate grease Inject 0.5 to 1.5 cc of grease into Grease
Fitting (102).
Worn or damaged parts Clean and inspect the Angle Head and gearing.
If the Bevel Gear and/or Bevel Pinion is broken,
replace both parts as they are a matched set.
SAVE THESE INSTRUCTIONS. DO NOT DESTROY.