Grizzly MOBILE PLANERS G0453 - Manual (Page 39)

-37- G0453/G0454 (Mfg. Since 3/08)
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.
figure 36. Jack screw access hole in the
cutterhead.
Jack screw
Access hole
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.
7. repeat Step 6.
8. repeat Step 6, but final tighten the gib
bolts.
9. repeat Steps 4–8 for the rest of the knives.
1 2 3 4 5
figure 37. gib bolt tightening sequence.
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.