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TROUBLESHOOTING

TROUBLESHOOTING GUIDE

WARNING

To avoid injury from an accidental start, turn the switch “OFF” and always remove the plug from the power source before making any adjustment.

Consult Hitachi Authorized Service Center if for any reason the motor will not run.

PROBLEM

POSSIBLE CAUSES

REMEDY

 

 

 

 

 

Noisy operation

1.

Incorrect belt tension.

1.

Adjust tension. See Section

 

 

 

 

“ASSEMBLY - TENSIONING BELT”

 

2.

Loose spindle pulley.

2.

Check tightness of retaining nut on pulley,

 

 

 

 

and tighten if necessary.

 

3.

Loose motor pulley.

3.

Tighten set screw in motor pulley.

 

 

 

 

 

Drill bit burns

1.

Incorrect speed.

1.

Change speed. See Section “BASIC DRILL

 

 

 

 

PRESS OPERATION - SPINDLE SPEEDS”

 

2.

Chips not coming out of hole.

2.

Retract drill frequently to clear chips.

 

3.

Dull drill bit.

3.

Resharpen drill bit.

 

 

 

 

 

Run out of drill bit point -

1.

Hand grain in wood or lengths of cutting

1.

Resharpen drill bit correctly.

drilled hole not round.

 

flutes and/or angles not equal.

 

 

 

2.

Bent drill bit.

2.

Replace drill bit.

 

 

 

 

 

Wood splinters on

1.

No backup material under workpiece.

1.

Use backup material. See Section “BASIC

underside.

 

 

 

DRILL PRESS OPERATION”.

 

 

 

 

 

Workpiece torn loose

1.

Not supported or clamped properly.

1.

Support workpiece or clamp it. See

from hand.

 

 

 

Section “BASIC DRILL PRESS

 

 

 

 

OPERATION”.

 

 

 

 

 

Drill bit binds in

1.

Workpiece pinching drill bit, or excessive

1.

Support workpiece or clamp it. See

workpiece.

 

feed presure.

 

Section “BASIC DRILL PRESS

 

 

 

 

OPERATION”.

 

2.

Improper belt tension.

2.

Adjust tension. See Section “ASSEMBLY -

 

 

 

 

TENSIONING BELT”.

 

 

 

 

 

Excessive drill bit runout

1.

Bent drill bit.

1.

Replace drill bit.

or wobble.

2.

Worn bearings.

2.

Replace bearings.

 

3.

Drill bit not properly installed in chuck.

3.

Install drill properly. See Section

 

 

 

 

“INSTALLING DRILL BIT”.

 

4.

Chuck not properly installed.

4.

Install chuck properly. See Section

 

 

 

 

“ASSEMBLY - INSTALLING THE CHUCK”.

 

 

 

 

 

Quill returns too slow or

1.

Spring has improper tension.

1.

Adjust spring tension. See Section

too fast.

 

 

 

“ASSEMBLY - ADJUSTMENTS -QUILL

 

 

 

 

RETURN SPRING”.

 

 

 

 

 

Chuck will not stay

1.

Dirt, grease, or oil on the tapered inside

1.

Using a household detergent, clean the

attached to spindle. It

 

surface of chuck or on the spindle’s

 

tapered surface of the chuck and spindle

falls off when trying to

 

tapered surface.

 

to remove all dirt, grease and oil. See

install.

 

 

 

Section “ASSEMBLY - INSTALLING THE

 

 

 

 

CHUCK”.

 

 

 

The LASER GUIDE will

1. The batteries are broken.

1. See INSTALLING BATTERY FOR LASER

not turn on.

 

 

 

GUIDE section.

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Hitachi B 16RM instruction manual Troubleshooting Guide, Problem Possible Causes Remedy