Adjusting Pressure Rollers - Grizzly G1066R Owner's Manual

2. Raise or lower bearing block by rotating set
screws (see Figure 84). Turn very gradu-
ally— ⁄ turn or less.
1
8
3. Tighten lock nuts and re-check alignment
using gauge block.
Note: Tightening lock nuts pulls sanding drum
slightly downward. Re-adjust set screws as
necessary to compensate for this movement.
DO NOT over tighten lock nuts. Bearing
blocks will break if over tightened. Also, DO
NOT change table height until the lock nuts
are tight.
4. Repeat Steps 1–3 on other side of drum.
Note: Model G1066Z has micro-adjustment
controls on sides of machine for rear sanding
drum adjustments (see Figure 85).
Micro-Adjustment
Lock Knob
Figure 85. Model G1066Z rear drum
micro-adjustment controls.
-42-
Micro-Adjustment
Lock Lever
Adjusting Pressure
Rollers
Pressure Rollers
Proper pressure on the workpiece helps avoid
kickback and keeps the workpiece from slip-
ping. However, as pressure increases on the
workpiece, snipe also increases (snipe is normal
with all brands of drum sanders).
If snipe becomes a problem, you can minimize
it by reducing pressure (raising pressure roller
height). However, you can only minimize it so
much before the workpiece will slip or kick out,
causing a hazard to the operator. If this happens,
you have raised the pressure rollers too high for
them to function as intended—the pressure rollers
MUST then be lowered to prevent injury.
Item(s) Needed
Open-End or Socket Wrench 10mm ................. 1
To adjust pressure roller tension:
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove top cover (disconnect dust-collec-
tion hoses if attached).
3. Loosen jam nuts on hex bolts (see Figure 86).
Tighten hex bolts to increase pressure roller
spring tension; loosen hex bolts to decrease
pressure roller spring tension.
Pressure Roller
Tension Hex Bolt Pressure Roller
(1 of 4)
Figure 86. Location of pressure roller
tensioners.
Model G1066R/Z/G1079R (Mfd. Since 02/11)
Qty
Jam Nut
(1 of 4)
(1 of 2)