2. Loosen the lock nut (Figure 38) on the side

To tension the feed belt:

 

 

that the feed belt tracks towards and tension

 

 

 

 

 

the tracking adjustment screw until the feed

1.

Loosen the feed roller lock screws, shown in

belt tracks in the opposite direction.

 

Figure 39, on both sides of the feed belt.

Note: Small tracking changes may take up to

 

 

 

 

Feed Belt

three minutes before they are noticeable.

 

Feed Roller

 

 

 

 

 

Tensioning

 

 

 

Lock

Nut

 

 

 

Lock Screws

Bolt

 

 

 

 

 

Lock Nut

Tracking

 

Figure 39. Feed belt tensioning controls.

Adjustment

 

 

 

 

 

 

 

 

Screw

2.

Use a permanent marker, paper correction

Figure 38. Feed belt tracking adjustment bolt.

 

fluid, or fingernail polish to mark the feed belt

 

 

 

tensioning bolt on both sides. This step will

3. When the feed belt is near the middle of the

 

aid you in keeping track of the rotations as

 

you turn the bolts, so they remain as even as

rollers or table, loosen

the tracking adjust-

 

 

possible.

 

 

 

ment screw until the feed belt stops moving

 

 

 

 

 

 

 

 

 

and tracks straight.

 

3.

Loosen the lock nuts and turn both of the

 

 

—If the feed belt tracks too far to the other

 

feed belt tensioning bolts clockwise one full

 

turn at a time until the feed belt no longer

side, loosen the tracking adjustment screw

 

 

slips during operation.

 

 

as necessary to bring it back. Repeat

 

 

 

 

 

 

 

 

Steps 2 & 3 until the tracking is correct.

 

 

 

 

 

Feed Belt Tension

Tools Needed:

Qty

Wrench 12mm

2

Hex Wrench 6mm

1

The feed belt will stretch when new and will even-

tually need to be tensioned. This is most obvious

if the feed belt starts slipping on the rollers.

 

When you tension the feed belt, focus on adjust-

ing the tensioning bolts in even increments.

Adjusting one side more than the other will cause

tracking problems, which will require you to take

additional steps to get the sander operating cor-

rectly.

 

—If the feed belt starts tracking to one side, back off the feed belt tensioning bolt that is being adjusted.

—If the feed belt continues tracking to one side, immediately turn the drum sander OFF and perform the tracking instructions.

4.Tighten the lock nuts to lock the feed belt tensioning bolts in place.

Note: When tensioned properly the belt should not lift off the table, slide back and forth, or slip.

NOTICE

DO NOT over-tension the feed belt, this may cause premature wearing of the belt, bushings, and cause strain on the motor.

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G0458 18" Open End Belt/Drum Sander

Page 34
Image 34
Grizzly G0458 instruction manual Feed Belt Tension, To tension the feed belt