MAINTENANCE SECTION
TROUBLESHOOTING GUIDE
Trouble
Probable Cause
Solution
Low power or low free speed
Dirty inlet or Air Strainer Screen
Using a clean, suitable cleaning solution in a well–
ventilated area, clean the Air Strainer Screen. Al-
low to air dry.
Worn or broken Vanes
Replace the complete set of Vanes.
Worn or broken Cylinder and/or
scored End Plates
Examine the Cylinder and replace it if it is worn or
broken or if the bore is scored or wavy. Replace
the End Plates if they are scored.
Dirty motor parts
Disassemble the tool and clean all parts with a
clean, suitable cleaning solution in a well–venti-
lated area. Reassemble the tool as instructed in
this manual.
Improper positioning of the
Reverse Valve
Make certain the Reverse Valve is fully engaged.
Motor will not run
Incorrect assembly of the motor
Disassemble the motor, replace worn or broken
parts and reassemble as instructed.
Rough operation
Worn or broken Rear Rotor
Bearing or Front Rotor
Bearing
Examine each bearing. Replace if worn or
damaged.
Worn or broken gear teeth
Check for worn or broken gearing. Replace any
damaged or worn gears.
Air leaks
Worn Throttle Valve Face or
Throttle Valve Face Cap
Replace worn parts.
Oil Chamber Plug worn or not
tight
Tighten the Plug. If the problem persists, replace
the Plug.
Gear Case gets hot
Insufficient grease
Clean and inspect the Gear Case gearing parts and
lubricate as instructed in LUBRICATION.
Worn or damaged parts
Clean and inspect the Gear Case and gearing.
Replace worn or broken components.
SAVE THESE INSTRUCTIONS. DO NOT DESTROY.
