Troubleshooting Pm1800B/2013B/2415B Band Saws; Operational Problems - Powermatic PM1800B Operating Instructions And Parts Manual

16.0 Troubleshooting PM1800B/2013B/2415B Band Saws

16.1 Operational Problems

Table 3
Symptom
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.
Possible Cause
Locking lever is not tight.
Trunnion locking mechanism is broken
or worn.
Trunnion is not lubricated.
Trunnion is jammed.
Incorrect blade speed.
Drive belt is too slack.
Incorrect choice of saw blade pitch.
Saw dust or debris on band wheel. Or
tire is worn/damaged.
Support bearing(s) are worn.
Saw blade speed is too low.
Saw blade pitch is too coarse.
Gum or pitch on blade.
Worn blade teeth or damaged blade.
Fence not parallel to blade.
Incorrect adjustment of blade guides.
Incorrect blade speed used.
Workpiece being fed too strongly.
Upper blade guides not located close
enough to workpiece.
Incorrect choice of saw blade for that
particular cutting operation.
Blade tension too light.
Tension spring is fatigued.
Incorrect blade tension or damaged
blade.
Blade too wide for desired radius.
Correction
Tighten locking lever (A, Figure 19).
Replace trunnion locking mechanism.
Lubricate trunnion.
Disassemble and replace jammed parts.
Position belt for correct speed (see
Figure 37). Also use acceptable feed
rate for the material being worked.
Increase tension on drive belt. (sect.
10.14). Replace belt if worn.
Check blade selection chart and use
correct blade (sect. 14.0).
Keep band wheels clean. Replace tires if
necessary.
Replace support bearings.
Increase speed.
Change to finer pitch blade.
Clean blade.
Replace blade.
Align fence properly (sect. 8.11).
Adjust blade guides properly (sect.
10.6).
Change to correct speed.
Reduce feed force.
Guides should be about 3/16" above
workpiece.
Change to correct blade.
Increase tension.
Replace tension spring (contact service
representative).
Correct accordingly.
Select narrower blade (sect. 14.0).
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