www.jeffersontools.com
User Manual
v.1.1
JEFPDB0350
TROUBLE SHOOTING
PROBLEM
PROBABLE CAUSE
REMEDY
Machine will not start.
1. Fuse
2. Other
1. Replace/ reset time delay fuse or circuit
breaker.
2. Return to an authorised service agent for
diagnosis.
Noisy operation (under load).
a. Incorrect belt tension.
b. Dry spindle.
c. Loose pulley.
d. Loose belt.
e. Worn bearing.
a. Adjust tension.
b. Remove spindle and quill
assembly and lubricate.
c. Tighten pulley.
d. Adjust belt tension.
e. Replace bearing.
Bit burns or smokes.
1. Incorrect belt tension.
2. Swaft not coming out of hole.
3. Blunt bit.
4. Feeding too slow.
5. Not lubricated.
1. Change speed.
2. Retract bit frequency to clear swaft.
3. Sharpen or replace bit.
4. Feed fast enough to allow drill to cut.
5. Lubricate bit.
Excessive drill run-out or wobble.
1. Bent bit.
2. Worn spindle bearings.
3. Bit not properly installed in chuck.
4. Chuck not properly installed.
1. Use a straight bit.
2. Return to an authorised service agent.
3. Install bit centrally.
4. Refit chuck properly.
Drill binds for workpiece.
1. Workpiece pinching bit or
excessive feed pressure.
2. Improper belt tension.
1. Support or re-clamp workpiece.
2. Adjust tension.
For your safety always turn the main switch on the machine “off”
and remove the plug from the power supply before carrying out any
maintence or trouble shooting.
WARNING:
