6
45530136_ed1
Trouble
Probable Cause
Solution
Shut-off brake malfunctions
more than one index of the
Clutch.
Does the speed of the Bit exceed rated speed
by more than 100 rpm?
Motor magnet is demagnetized.
Replace the motor.
Is Brake Switch functioning? (Does it click when
button is depressed and does it test correctly
with an ohmmeter?)
Defective Brake Switch. Replace the Brake Switch.
Does Pushrod function properly?
Bent or worn Pushrod. Replace it.
Does Cam function properly?
Cam is worn and not providing adequate lift.
Replace the Cam.
Controller malfunctioning or defective. Repair or replace.
See Controller Service Manual.
Tool makes abnormal sounds
when the motor is running.
Is there looseness at the assembly points?
Screws are loose. Tighten all Screws.
Clutch Housing is loose. Tighten the Clutch Housing to the
proper torque.
After removing the gear train does motor
sound normal when running?
Armature is in contact with the Magnet. Replace the motor.
Foreign material has gotten into the motor. Clean or
replace the motor.
Ball Bearings are defective. Replace the motor.
Armature is defective. Replace the motor.
Is the gear train properly lubricated?
No grease on the gear train. Apply a thin film of the
recommended grease to the gear train.
Spindle Bearing has failed. Replace the Spindle Assembly.
Gears are worn or dirty. Clean or replace the gears.
Tool generates abnormal
heat when operating.
After removing the gear train, does tool cool
down and motor run normally?
Motor is defective. Replace the motor.
Planetary gear and the Clutch require lubrication. Lubricate
the Clutch and gear train with the recommended grease.
NOTICE
Do not apply too much or too little grease.
Tool outputs high torque
Is the shut-off brake functioning properly?
Refer to Problem “Shut-off brake malfunctions more
than one index of the Clutch” to check shut-off brake
malfunctions.
Is Clutch properly lubricated
No lubrication on the Clutch components Lubricate the
Clutch with recommended grease.
Is there wear on face of cam guide where it
contacts Spindle Assembly (40)?
Cam guide is worn. Replace the Bit Holder Assembly.
Clutch Spring is damaged. Replace Spring.
Tool outputs low torque.
Is the Clutch Housing joint tight?
Loose joint between the Gear Case and Clutch Housing.
Tighten the joint with a torque wrench to specified torque.
Cam is worn. Replace the Cam.
Clutch Spring is damaged. Replace the Clutch Spring.
Cam guide is damaged. Replace the Bit Holder Assembly.
Related Documents
For additional Information Refer to:
Product Safety Information Manual 16573685.
Product Information Manual 45527595.
Parts Information Manual 45530128.
Manuals can be downloaded from www.irtools.com.
Summary of Contents for EL 24V DC Series
Page 7: ...Notes...
