-42-
G1021X2 & G1021Z (Mfd. Since 08/16)
4. if V-belts need to be replaced, raise motor to
release belt tension (see next step for instruc-
tions), roll them off pulleys, then replace with
a matched set of 3.
5. to adjust V-belt tension, loosen top motor
mount hex nut (see
figure 50 on Page 41),
then adjust bottom hex nut to raise or lower
motor.
Note: V-belts are correctly tensioned when
there is approximately
3
⁄
4
" deflection when
moderate pressure is applied to them midway
between pulleys, as illustrated in
Figure 51.
Cutterhead
Pulley
Approximately
3
⁄
4
" Deflection
Motor
Pulley
figure 51. Belt deflection when V-belts are
correctly tensioned.
6. after V-belts are correctly tensioned, tighten
top motor mount hex nut, then re-install cabi-
net cover and belt cover.
Pulley Alignment
proper pulley alignment prevents premature V-belt
wear and unnecessary load on the motor. the
pulleys are properly aligned when they are parallel
and in the same plane as each other.
items Needed
Qty
Straightedge 3' .................................................. 1
Wrench or Socket 14mm, 17mm .................2 Ea.
to check/re-align pulleys:
1. diSConnECt MaChinE FroM poWEr!
2. remove belt cover, then use straightedge
to check pulley alignment, as shown in
figure 52.
figure 52. Example of checking pulley
alignment.
— if pulleys are parallel and in the same plane,
no adjustment is necessary. re-install belt
cover.
— if pulleys are not parallel or in the same
plane, remove motor access panel, then
proceed to
Step 3.
3. loosen four motor mount bolts, shift motor
until pulleys are properly aligned, then re-
tighten motor mount bolts.
4. re-check pulleys and repeat Step 3 as
necessary until you are satisfied with pulley
alignment, then re-tighten all fasteners, and
replace belt cover and motor access panel.
Summary of Contents for G1021X2
Page 76: ......
