Tensioning/Replacing V-Belts - Grizzly G0827 Owner's Manual

Tensioning/
Replacing V-Belts
To ensure optimum power transmission from the
horizontal spindle motor to the arbor, the V-belts
must be in good condition (free from cracks, fray-
ing, and wear) and properly tensioned. After the
first 16 hours of belt life, re-tension the V-belts, as
they will stretch and seat during this time.
All V-belts can be replaced by releasing the ten-
sion and rolling them off the pulleys, then roll-
ing the new belts back onto the pulleys. Always
replace V-belts with a matched set of three belts,
or belt tension may not be even among the three
belts and may cause premature belt failure.
Tools Needed
Open-End Wrench 17mm .................................. 1
Open-End Wrench 19mm .................................. 1
Tensioning V-Belts
1.
DISCONNECT MACHINE FROM POWER!
2.
Open rear column cover to gain access to
horizontal spindle V-belts and pulleys.
3. Loosen top hex nut (see Figure 92) on retain-
ing bolt, then adjust bottom hex nut down.
V-Belts
Retaining
Bolt
Hex
Nuts
Motor Bracket
Figure 92. Location of hex nuts for adjusting
V-belt tension.
Model G0827 (Mfd. Since 11/17)
4. Press down on motor until approximately
⁄ " – ⁄ " deflection is achieved (see Figure 93)
1 1
4 2
by applying moderate pressure midway
between pulleys.
⁄
1
4
Deflection
Figure 93. Checking V-belt tension.
5.
Tighten top hex nut to hold motor in place,
then tighten bottom hex nut to secure belt
Qty
tension.
6.
Close and secure rear column cover.
Replacing V-Belts
1.
DISCONNECT MACHINE FROM POWER!
2.
Open rear column cover to gain access to
horizontal spindle V-belts and pulleys.
3. Loosen top hex nut shown in Figure 92
enough to swing retaining bolt away from
motor bracket.
4. While lifting motor, remove and replace
V-belts.
5. Re-install retaining bolt onto motor bracket,
making sure hex nuts and flat washers are in
same position above and below bracket as
they were originally.
6. Follow Steps 4–5 in Tensioning V-Belts
procedure to set correct belt tension.
7. Close and secure rear column cover.
Pulley
"– ⁄ "
1
2
Pulley
-53-