Setting Horizontal Spindle Speed - Grizzly G0757 Owner's Manual

6. Arrange V-belts for desired vertical spindle
speed (see Figure 27).
Note: The vertical spindle speed chart shown
below is also on side of ram.
Vertical Spindle Speeds
RPM
285 D – E
390 C – E
490 D – F
585 B – E
665 C – F
Spindle
A
B
C
D
Figure 27. Vertical spindle speed chart.
7. Apply pressure on motor handle toward the
back of machine to tension V-belts as you
retighten center pulley hex nut and motor
mount hex bolts.
Note: There is proper V-belt tension when
approximately ⁄ " –
1
4
(see Figure 28) by applying moderate pres-
Horizontal Spindle Speeds
sure midway between pulleys.
RPM
72 D – E
170 D – F
⁄ "– ⁄ "
1 1
4 2
210 D – G
Deflection
240 C – E
290 B – E
550 C – F
830 B – G
1300 A – F
Figure 28. Checking V-belt tension.
8.
Re-install V-belt covers before connecting
machine to power.
-32-
RPM
860 D – G
1320 A – F
1720 B – G
2300 A – G
Motor
E
F
G
⁄ " deflection is achieved
1
2
Spindle
A
Pulley B
C
D
G
F
E
Motor
Pulley

Setting Horizontal Spindle Speed

Tools Needed
Wrench 24mm ................................................... 1
Dead Blow Hammer .......................................... 1
To set vertical spindle speed:
1. DISCONNECT MACHINE FROM POWER!
2. Open horizontal V-belt cover to gain access
to horizontal spindle V-belts and pulleys, as
shown in Figure 29.
Hex Nut
Behind Bracket
Tension
Thumbwheel
Figure 29. Horizontal spindle V-belts and pulleys
(cover removed for photo clarity).
3.
Loosen tension thumbwheel and hex nut
behind lower idler pulley bracket.
4.
Move lower idler pulley to the right to release
V-belt tension.
Note: You may have to bump the lower idler
pulley with the deadblow hammer to get it to
move.
Model G0757 (Mfg. Since 6/13)
Qty
Lower
Idler
Pulley