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G1021Z 15" Planer -27-
TO CHECK BELT TENSION:
Squeeze the V-Belts at their midpoints with mod-
erate finger pressure. You should be able to
deflect each V-Belt about
3
/4". Belts will rarely be
too tight, but will sometimes be too loose.
To adjust belt tension:
1. Remove the belt guard using the two
threaded knobs. Remove the panel at the
back of the machine stand to gain access
to the motor assembly.
2. The motor pivots on a platform which is
suspended at one end by a threaded
adjustment bolt. Adjust the two locknuts up
or down the shaft until the desired belt
deflection is achieved. See Figure 32.
3. Tighten the bolts against the pivot plate to
lock the motor adjustment into place.
4. Check belt tension again. Repeat steps 2-3
as necessary.
Figure 32. Adjusting belt tension.
The gearbox is located just behind the handwheel
on the right side of the planer.The gearbox trans-
fers power from the belt-driven cutterhead to the
power feed rollers.The two-speed transmission is
controlled by a push/pull lever on the right side of
the planer. When engaged, the power feed rollers
will move lumber through the planer at either 16
or 20 feet-per-minute. The center lever position is
neutral.
TO INSPECT THE GEARBOX:
1. Loosen the socket head cap screw on the
gearbox cover. Gently pull the cover off the
roll pins that hold it in place.
2. Check the bolts holding the sprockets in
place. Inspect the drive chains to ensure
that the retaining clips are in place. Replace
the clips if necessary. See Figure 33.
Figure 33. Location of sprocket bolts.
Move these nuts to
adjust belt tension.
DO NOT make adjustments while the planer
is running. Ensure that the switch is off,
power is disconnected and moving parts
have stopped before making adjustments.
Failure to comply could result in serious
injury.
Gearbox