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5.
Loosen both hex bolts that secure idler pivot
arm (see Figure 33).
6.
Push idler pulley toward front of head-
stock to release tension on idler V-belt (see
Figure 33).
Hex Bolts
(1 of 2)
Idler
V-Belt
Figure 33. Location of idler pivot arm with hex
bolts, idler pulley, and idler V-belt.
7.
Refer to V-belt configuration chart in Figure 34
(or chart inside V-belt cover) to configure
V-belts on pulleys for selected spindle speed.
Spindle
Idler
Pulley
Pulley
1
2
3
4
RPM
Belt Position
150
4–5
225
3–5
255
4–6
350
2–5
400
3–6
500
4–7
Figure 34. V-belt configuration chart.
-28-
Idler
Pivot Arm
Idler
Pulley
Motor
Pulley
5
6
7
8
RPM
Belt Position
850
1–6
1200
2–7
1500
3–8
1600
1–7
2300
2–8
3000
1–8
8.
When V-belts are properly positioned on
pulleys, loosen motor lock, pull motor away
from machine with moderate force to tension
V-belts, then retighten motor lock.
9.
Check V-belt tension by applying moderate
pressure on belt with your finger between two
pulleys. The proper amount of belt deflection
for this machine is approximately
Figure 35).
½"
Deflection
Figure 35. The correct amount of V-belt
deflection when properly tensioned.
10. Close
V-belt
cover
operations.
SPINDLE R.P.M.
A
B
Configuration Example
I
670
Figure 36 shows the V-belts configured on the
II
pulleys for a spindle speed of 1500 RPM.
1650
1420
III
2520
2170
1200
Spindle
Idler
Pulley
Pulley
Spindle
V-Belt
Figure 36. Example of V-belts configured for a
spindle speed of 1500 RPM.
Model G0810 (Mfd. Since 10/15)
⁄
" (see
1
2
Pulley
Pulley
before
beginning
C
320
Motor
Pulley
Motor
V-Belt
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