Grizzly G0453, G0454 owner manual Belt Tensioning Replacement, To tension/replace the V-belts

5.Jack Screws (G0453 & G0454): Insert the hex wrench into the jack screws through the access holes in the cutterhead (see Figure 36). Rotate the jack screws to raise or lower the knife until it barely touches the center pad of the knife gauge with all legs of the gauge still firmly on the cutterhead, then snug the gib bolts enough to hold the knife in place.

Jack Screw

Access Hole

Figure 36. Jack screw access hole in the

cutterhead.

Springs (G0454 Only): Push down on the knife gauge until all legs of the gauge are firmly on the cutterhead and the knife just touches the center pad of the gauge, then tighten the gib bolts enough to hold the knife in place.

6.Slightly tighten the gib bolts, starting at the middle and working your way to the ends by alternating left and right, as illustrated in

Figure 37.

5 3 1 2 4

Figure 37. Gib bolt tightening sequence.

7.Repeat Step 6.

8.Repeat Step 6, but final tighten the gib bolts.

9.Repeat Steps 4–8for the rest of the knives.

G0453/G0454 (Mfg. Since 3/08)

V-Belt Tensioning/

Replacement

NOTICE

After the first 16 hours of use, the V-belts will stretch and seat into the pulley grooves. The V-belts must be properly re-tensioned after this period to avoid severely reducing their useful life.

Three cogged V-belts transfer power from the motor to the cutterhead, and then to the infeed and outfeed rollers with the use of the drive chain system. To ensure efficient transfer of power to these systems, make sure the V-belts are always properly tensioned and in good condition.

If the V-belts are worn, cracked, or damaged, replace them. Always replace the V-belts with a matched set of three, or belt tension may not be even among the belts, causing premature belt failure.

Tools Needed	Qty
Phillips Screwdriver	1
Wrench 19mm	1
To tension/replace the V-belts:

1.DISCONNECT PLANER FROM POWER!

V-belts and pulleys will be hot after opera- tion. Allow them to cool before handling them.

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