RIKON Power Tools 10-340 - Manual (Page 11)

11
Changing the Blade Speed / Belt Tension
WARNING! Before changing the speed, always make sure
the machine has been unplugged from the electrical supply.
This Bandsaw has two blade speeds, low speed (1510 ft/
min) and high speed (3220 ft/min).
The lower wheel (A--Fig. 13) has two integral “V” form
pulleys, and the motor shaft has a twin multi-vee form pulley
(B--Fig. 13). The “V” belt (C--Fig. 13) passes around the
wheel pulley and the motor pulley. The belt tension is
released and applied by using the handwheel (D--Fig. 13).
For the high speed (3220 ft/min), the belt should be fitted to
the rear pulley on both the motor and the wheel. As shown in
Fig. 13.
For the low speed (1510 ft/min), the belt should be fitted to
the front pulley on both the motor and wheel. As shown in Fig.
13.
To properly adjust belt tension, turn hand-wheel (D--Fig. 13)
until there is 1/2” deflection in the “V” belt.
Replacing the Bandsaw Blade
WARNING! Unplug the machine from the electrical supply.
This ensures that the Bandsaw will not accidentally turn on if
the ON/OFF switch is bumped.
a) Open the top and bottom wheel doors by turning the door
locking knobs.
b) Remove the rip fence rail from the front of the table by
loosening the 4 thumbscrews (Fig. 3 on page 8).
c) Release the blade tension by rotating the quick release lever
(Fig. 14) clockwise.
d) Remove the saw blade by feeding it through the slot in the
table, upper and lower blade guides and the slot in the spine of
the machine, being careful not to cut yourself. Wear gloves for
protection.
e) When fitting the new blade ensure the blade teeth are pointing
downwards and towards you at the position where the blade
passes through the table.
f) Re-tension the new blade by rotating the quick release lever
(Fig. 14) counterclockwise and check the blade tracking. The
blade should run in the center of the wheel. Refer to “Tracking
the Saw Blade” on page 6 for more details.
g) Reset the blade guides as described in the section “Adjusting
the Blade Guides” on page 10.
h) Reset the blade tension as described in the section “Adjusting
the Blade Tension” on page 9.
i) Replace the rip fence guide, and retighten the 4 thumb-screws
(Fig. 3 on page 8).
j) Close and lock both the wheel doors before reconnecting the
power supply.
Figure 13
Figure 14