Powermatic PM1800 operating instructions Troubleshooting Operational Problems

Models: PM1800

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Troubleshooting – Operational Problems

Trouble

Table tilt does not hold position under load.

Table will not tilt.

Table vibration while sawing.

Surface finish on workpiece is rough.

Saw blade cutting inaccurately. Cuts are not straight.

Blade cannot be tensioned properly.

Blade binds in the workpiece.

Probable Cause

Remedy

 

 

Locking lever is not tight.

Tighten locking lever (A, Figure 20).

 

 

Trunnion locking mechanism is

Replace trunnion locking mechanism.

broken or worn.

 

 

 

Trunnion is not lubricated.

Lubricate trunnion.

 

 

Trunnion is jammed.

Disassemble and replace jammed

parts.

 

 

 

 

Position belt for correct speed (see

Incorrect blade speed.

page 23). Also use acceptable feed

 

rate for the material being worked.

 

 

Drive belt is too slack.

Increase tension on drive belt. (see

page 23). Replace belt if worn.

 

 

 

Incorrect choice of saw blade pitch.

Check blade selection chart and use

correct blade (see page 31).

 

 

 

Saw dust or debris on band wheel. Or

Keep band wheels clean. Replace

tire is worn/damaged.

tires if necessary.

 

 

Support bearing(s) are worn.

Replace support bearings.

 

 

Saw blade speed is too low.

Increase speed.

 

 

Saw blade pitch is too coarse.

Change to finer pitch blade.

 

 

Gum or pitch on blade.

Clean blade.

 

 

Worn blade teeth or damaged blade.

Replace blade.

 

 

Fence not parallel to blade.

Align fence properly (see page 13).

 

 

Incorrect adjustment of blade guides.

Adjust blade guides properly (see

pages 19-20).

 

 

 

Incorrect blade speed used.

Change to correct speed.

 

 

Workpiece being fed too strongly.

Reduce feed force.

 

 

Upper blade guides not located close

Guides should be about 3/16” above

enough to workpiece.

workpiece.

 

 

Incorrect choice of saw blade for that

Change to correct blade.

particular cutting operation.

 

 

 

Blade tension too light.

Increase tension (see page 17).

 

 

Tension spring is fatigued.

Replace tension spring (contact

 

service representative).

 

 

Incorrect blade tension or damaged

Correct accordingly.

blade.

 

 

 

Blade too wide for desired radius.

Select narrower blade. See chart on

page 31.

 

 

 

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Page 32
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Powermatic PM1800 operating instructions Troubleshooting Operational Problems