Grizzly G1066Z, G1079 instruction manual Dust Scoop Belt

Dust Scoop V-Belt

The Model G1066/G1079 is equipped with a dust scoop located next to the rear sanding drum. The Model G1066Z features a dust scoop for each drum. Dust scoops reduce the amount of dust that accumulates on the workpiece as it travels through the sander. Dust scoops are adjustable and should be set approximately 1⁄32'' above the bottom of the rear drum for optimum effective- ness.

To adjust a dust scoop:

1.Unplug the sander from its power source!

2.Place two 2x4’s of equal height under the rear sanding drum and the dust scoop. Raise the table until the 2x4’s just touch the drum.

3.Loosen the dust scoop mounting bolts locat- ed at each end of the scoop as shown in

Figure 12.

4.Move the scoop up or down until it is approx- imately 1⁄32'' above the 2x4’s. Some flexing of the sheet metal assembly may be needed to get the proper clearance. Retighten the mounting bolts and remove the 2x4’s.

Dust Scoop

Mounting Bolt

Figure 12. Location of dust scoop bolts.

The sanding drums are driven by two V-Belts on the Models G1066 & G1066Z and one V-Belt on the Model G1079. The V-Belts must have proper tension for proper power transmission. Proper tension is achieved when the V-Belts can be deflected about 3⁄4" with moderate finger pressure at the midpoint between the drum sheaves (sheaves are integral on the Model G1079) and the motor sheave. To adjust V-Belt tension, loosen the motor mounting bolts and slide the motor accordingly. Ensure that the pulleys stay in line with each other and tighten the motor mount- ing bolts. Re-check V-Belt tension and alignment.

To check alignment, ensure that the machine is on a level floor. Hold a straightedge against the side of the rear contact drum sheave. The contact drum and motor sheaves are in alignment when the straightedge also barely touches the side of the motor sheave.

To align the sheaves, loosen the motor from the motor mounting plate and shift the motor in the desired direction. Tighten the motor mount bolts and re-check alignment and tension.

If the sheaves will not come into alignment by adjusting the motor, the motor sheave can be moved directly along the motor shaft. Loosen the setscrew on the motor sheave and move it in or out accordingly.

Always inspect V-belts for damage or deteri- oration when adjusting for tension or align- ment. Should you find evidence of cracking, abrasion or damage from wood chips or other foreign materials, replace the belt immediately. Belt breakage could lead to mechanical damage or operator injury.

G1066/G1066Z/G1079 Drum Sander -17-