CO/Tech ZJ4116-J11 User Manual

ENGLISH
10
Troubleshooting Guide
Problem
Possible cause Action
Noise when running. Wrong belt tension. Adjustthetension.
Dry spindle. Lubricate the spindle.
Loose spindle pulley. Make sure that the lock nut is tight.
Tighten the screws if needed.
Loose drive belt pulley. Tighten the set screw on the pulley.
The drill bit overheats. Wrong speed. Change speed.
No swarf coming from hole. Lift the drill to clean it often.
Blunt drill bit Sharpen the drill bit.
Feed rate too slow. Increase rate of feed..
No lubrication/cooling. Use a suitable lubricant/coolant.
Drill bit wanders.
Holenotround.
Knot in the wood or unsym-
metrical sharpened drill.
Sharpen the drill bit correctly.
Bent drill bit. Replacedrillbit.
Splinters in the wood
where the drill cuts
through.
No waste wood under
workpiece.
Place a piece or waste wood under
The workpiece is
loose.
It needs clamping. Support or clamp the workpiece.
The drill bit sticks in
the workpiece.
The workpiece “grabs” or
too much pressure.
Support or clamp the workpiece.
Belt tension too low. Adjustthetension.
The drill bit “wobbles”. Bent drill bit. Replacedrillbit.
Worn spindle bearing. Replacebearing.
Drill bit not straight. Insert drill bit correctly.
Chuck mounted incorrectly. Mount chuck correctly.
Spindle goes up too
slow or too fast.
Wrong spring tension. Adjustthetension.
The chuck won’t stay
in place.
Dirt,greaseoroilon the
taper in the chuck or on the
spindle.
Clean the chuck taper
and spindle with suitable cleaning
agent.

CO/Tech ZJ4116-J11 Specifications

General

Brand	CO/Tech
Model	ZJ4116-J11
Category	Drill
Language	English