Jet Tools -20QT-3 用户手册
21
Replacing the Poly V-Belt
Disconnect
machine
from
power source before making any adjustments.
1. Place
the
mode selection lever (J, Fig. 18) in
the Full Release position.
Referring to Figure 25:
2. Loosen the lock handle (A) that secures the
motor (C).
3. Release belt tension by pulling handle (B) up
which raises the motor, then tighten lock
handle (A).
handle (A).
4. Open the lower wheel door (C, Fig. 27) and
remove the hex nut and washer (D, Fig. 27).
5. Remove the wheel (E, Fig. 28). If the lower
wheel does not come off easily you may need
to use a pulley puller to remove it.
to use a pulley puller to remove it.
Note: If you are doing a pulley alignment only, skip
Step 6.
Step 6.
6. Remove
the
old belt (F, Fig. 28) and install the
new belt.
Note: For higher blade-speed, place the belt on
the pulleys closest to the motor (A, Fig. 26). For
lower blade-speed, place the belt on the
pulleys away from the motor (B, Fig. 26).
the pulleys closest to the motor (A, Fig. 26). For
lower blade-speed, place the belt on the
pulleys away from the motor (B, Fig. 26).
Since the wheel is still off, this is the most
convenient time to check the wheel and motor
pulley alignment. Jump to the Pulley Alignment
procedure (following page) at this time. At the
conclusion you will be redirected back here.
convenient time to check the wheel and motor
pulley alignment. Jump to the Pulley Alignment
procedure (following page) at this time. At the
conclusion you will be redirected back here.
After the pulley alignment (if performed) is
complete:
complete:
7. Reinstall the lower wheel, hex nut and washer
and tighten the hex nut.
8. Unlock lock handle (A, Fig. 25). Apply belt
tension by slightly pushing handle (B, Fig. 25)
down.
down.
9. Tighten
the
lock handle (A, Fig, 25) to secure
the motor (C).
Important: Before operating the band saw, refer to
the sections listed below and perform the required
adjustments described in them.
the sections listed below and perform the required
adjustments described in them.
Installing/Changing Blades (page 15)
Belt Tension (below)
Blade Tension (page 20)
Blade Tracking (page 16)
Upper Bearing Adjustments (page 17)
Lower Bearing Adjustments (page 18)
Belt Tension (below)
Blade Tension (page 20)
Blade Tracking (page 16)
Upper Bearing Adjustments (page 17)
Lower Bearing Adjustments (page 18)
Figure 27
Figure 28