ENGLISH
13
TROUBLESHOOTING
NOTE!
Turn off and disconnect the compressed air before troubleshooting a compressed air tool.
Problems
Possible causes/Corrective measures
Rotating tool: The tool rotates
slowly or not at all.
The motor's slave gas valve or intake hole is blocked by
foreign material. Check and clean if necessary.
The rotor blade is broken. Replace the rotor blade.
The O-ring is worn or incorrectly located. Replace drive or
bearing.
The tool cannot be stopped.
The O-ring is worn or incorrectly located. Replace the O-ring.
The valve rod is deformed. Replace the slave valve rod.
The motor does not work.
The rotor is blocked by foreign material. Clean.
The bearing is damaged. Replace the bearing.
The air pressure is too low. Increase the air pressure
according to the specification.
The tool does not work, increased
amount of exhaust emissions.
The rotor blade is blocked. Remove foreign materials.
The motor jams due to rust. Clean and top up the oil.
The tool rotates normally, but the
torque is continually reduced.
The punching unit is damaged. Replace damaged parts.
Insufficient lubricating oil. Top up with lubricating oil.
Defective shaft head or shaft sleeve. Replace damaged part.
Pneumatic tool: The tool rotates
slowly or only a small amount of air
emerges through the outlet hole.
The gas duct is blocked by foreign material. Clean.
The motor is blocked internally by foreign material. Clean.
The speed control is incorrectly set. Adjust the control.
The clamp cannot hold the drill
head.
The snap ring is worn. Remove and replace the snap ring.
Cam-type tools: The motor rotates,
but the shaft does not move or
rotates abnormally.
The cam wheel fingers are worn. Replace worn parts.
The spring is defective or worn. Replace the spring.
Drawing pin-type tools: The clamps
to not attach or cannot be pulled
off.
The pin plate is worn. Clean the cam fingers.
The sleeve spring is worn. Replace the spring.
Reduced oil pressure spring or incorrectly positioned oil rod.
Adjust.
Insertion-type tools: The insertion
force is continually reduced.
Increasing friction between piston and cylinder. Lubricate the
cylinder.
The valve is leaking air. Replace damaged or worn parts.
The water/oil chamber is not
working.
The holder is not properly fitted or the air is not regulated
correctly via the oil adjustment button. Seal the holder and
check the O-ring for gas leaks.
Subject to printing errors and design changes over which we have no control. In the event of problems,
please contact our service department.
Jula Postorder AB, Box 363, SE-532 24 SKARA, SWEDEN
www.jula.com
Summary of Contents for 071-004
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