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G1014Z Combination Sander -13-
3. Tighten hex bolt, PN # 91 and run the sander
to adjust the tracking if necessary.
4. Try aggressively sanding a piece of scrap
wood. If the tracking is not significantly
affected and the belt does not slip on the
drum, your belt tension is correct.
Belt Tensioning
Correct belt tension will insure that your sander
functions properly. Too little tension will allow the
belt to slip and may cause the sander to track
erratically. Too much will cause the drive drum to
creep on the drive shaft and possibly cause pre-
mature bearing failure. It is impossible to describe
ideal belt tension. A good rule of thumb is less
tension is better than too much. If the belt sounds
like a drum when plucked, your tension is proba-
bly set too tight. If your belt does not track and
slips under load, it is too loose. Use the following
steps to adjust tension.
1. With belt installed and quick release lever
engaged, loosen Hex Bolt, PN # 91 slightly.
Figure 14. Note: Figure 14 is depicted with
the belt removed for illustration purposes
only. Normally steps 1-4 are done with the
belt installed.
Figure 14.
2. Use a large open end adjustable wrench and
carefully rotate the eccentric, PN # 84A to
increase or decrease tension. Remember:
The belt should not sound like a drum when
plucked. If it does, decrease the tension.
Figure 15.
Figure 15.