Jet JJP-8BT, Operating Instructions And Parts Manual

Page: 17 / 40

17
Belt Replacement
Refer to Figure 19 when installing or replacing the
the
feed-roller (A) or cutterhead drive (D) belts.
Disconnect machine from
power source before making any adjustments.
Failure to comply may cause serious injury.
Feed-roller Belt Replacement
Cutterhead knives are
dangerously sharp. Use extreme caution when
replacing any belt. Contact with cutterhead
knives will cause serious injury.
1. Remove the front panel. This is the panel
where the Start/Stop switch is located.
2. Remove feed-roller belt (A) from pulley (B)
while manually rotating pulley (C).
When this is accomplished, belt will fall away
from
pulley (C).
3. Loop the new belt around pulley (C), then
around pulley (B) while manually rotating
pulley (C).
4. When installed, continue to manually rotate
pulley (C) and verify that belt is properly
seated on both pulleys.
5. Replace front cover.
Cutterhead Drive Belt Replacement
Cutterhead knives are
dangerously sharp. Use extreme caution when
replacing any belt. Contact with cutterhead
knives will cause serious injury.
The cutterhead drive belt should seldom if ever,
require replacement. Follow the procedure below
if, however, the belt should require replacement.
1. Remove the feed-roller belt as described in
Feed-roller Belt Replacement above.
2. Remove the bottom portion of the cutterhead
drive belt (D) from pulley (E) while manually
rotating pulley (F).
Use extreme caution to avoid
contact with cutterhead knives while
performing this step. Contact with cutterhead
knives will cause serious injury.
3. Remove top portion of belt (D) from pulley F,
then work it under the chain and past pulley B
to remove completely.
Figure 19
4. Install new belt by first feeding the lower loop
downward behind the gear (H) and pulley (C).
This will properly position the lower loop of the
belt in close proximity to
pulley (E).
5. Slide the top loop of the belt around and past
pulley (B), sliding it underneath and past chain
(G); then loop around pulley (F).
6. Loop belt around pulley (E) while manually
rotating pulley (F).
Use extreme caution to avoid
contact with cutterhead knives while
performing this step. Contact with cutterhead
knives will cause serious injury.
7. Manually rotate pulley (F) to verify that the
grooves in the belt are properly meshed with
the grooves on both pulleys.
This completes the cutterhead drive belt
installation.
8. Replace the feed-roller belt ( Feed-roller Belt
Replacement section steps 3–5).