Tensioning/Replacing Belt - Grizzly G0857 Owner's Manual

Tensioning/
Replacing Belt
Tensioning Replacing Belt
To ensure optimum power transmission from the
motor to the cutterhead, the belt must be in good
condition (free from cracks, fraying and wear) and
properly tensioned.
After approximately 16 hours of opera-
tion, belts will stretch and seat into pul-
ley grooves. The belts need to be re-ten-
sioned after this initial break-in period
to ensure optimum power transfer and
maximum overall life of the belts.
Item(s) Needed
Replacement Belt (P0857136) ........................... 1
Phillips Screwdriver #2 ...................................... 1
Open-End or Socket Wrench 13mm ................. 1
Tensioning Belt
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove rear access panel on stand.
3.
Loosen motor mount fasteners shown in
Figure 66. DO NOT completely remove
motor mount fasteners.
Figure 66. Location of motor mount fasteners
(3 of 4 shown).
4. Press down on motor to keep tension on belt.
Model G0857/G0858 (Mfd. Since 07/19)
Belts and pulleys will be hot after operation.
Allow them to cool before handling.
5. Press belt with moderate pressure in center to
check belt tension. Belt is correctly tensioned
when there is approximately
when pushed, as shown in Figure 67.
Cutterhead Pulley
Approximately
⁄ " Deflection
1
4
Qty
Motor Pulley
Figure 67. Checking belt tension.
— If there is more than
you check belt tension, repeat the tension-
ing procedure until it is correct.
6. Tighten motor mount bracket fasteners (see
Figure 66), and replace rear access panel.
Replacing Belt
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove fence, belt cover and rear access
panel on stand.,
3. Loosen motor mount bracket fasteners shown
in Figure 66.
4. Use a 2x4 as leverage to lift motor as you
remove belt and replace it with a new one.
Make sure belt is seated in pulley groove.
5. Follow Steps 4–5 in Tensioning Belt proce-
dure to set correct belt tension.
6.
Tighten
Figure 66), and replace rear access panel.
⁄
1
4
⁄ " deflection when
1
4
motor mount fasteners
" deflection
(see
-51-