9
Figure 5: Setting the stock stop cutoff length
Using the stock stop
When cutting a number of identical pieces, the
use of the stock stop can speed operations.
Refer to
Figures 1 and 5
.
1. Disconnect the saw from its electric power
source.
2. With the arm in its fully lowered position, loosen
the stock stop set screw.
3. Slide the stock stop to the required distance
from the blade.
4. Rotate the stock stop so the stop is at the lowest
possible position for stopping the work piece at the
required distance. This will help prevent any
binding between the work piece and blade when the
cut is completed.
5. Tighten the stock stop set screw securely.
6. For best accuracy, make a test cut on a piece of
scrap material to verify the length of cut using the
stock stop.
Blade selection
The saw is delivered with a blade adequate for
a variety of jobs on a variety of common materials.
However, JET's blades, while appropriate to many
shop cutting needs, don't begin to exhaust the wide
variety of special blades available for special cutting
jobs.
For high production cutting of special materi-
als, or for hard-to-cut materials such as stainless
steel, tool steel, titanium, etc., ask your industrial
distributor for more specific blade recommenda-
tions.
Table 1: Recommended blade speeds
Figure 6: Blade speeds and belt positions
Changing blade speeds
1. Refer to
Table 1
for recommendations on blade
speed for various materials.
Note: These are approximate speeds.
Different alloys and section materials and the
use of cutting fluid may require other speeds.
Check you machinists' handbook, or ask for
recommendations from your blade, cutting
fluid or work piece suppliers for specific
recommendations on specific material.
2. Disconnect the saw from its electrical power
source.
3. With the arm in its fully lowered position, remove
the pulley cover lock screw and open the pulley
cover. Refer to
Figure 6
for speeds and belt
positions.
4. To change the belt position (and, therefore, the
blade speed) first loosen the motor plate adjustment
lock nut. Refer to
Figure 8
for the position of the
motor plate adjustment screw and locknut.
5. Turn the adjustment screw counterclockwise
until the belt can be move to the pulley position
required.
6. Turn the adjustment screw clockwise to tension
the belt until there is 1/2 inch of play in the belt as
shown in
Figure7
.
7. Tighten the adjustment lock nut.
8. Close the pulley cover and secure it shut with
the lock screw.
9. Reestablish electrical power to the saw and
proceed with cutting.
Figure 8: Motor plate adjustment screw
Figure 7: Setting correct play in drive belt
Material
Speed
Steel shapes and low carbon steel
125
Medium and high carbon steel
85
Cr-Moly steel
125
Chromium steel
125
Tool steel
85
Cast iron
85
Aluminum
85-125
Most plastics
200
Wood
200
Содержание J-3130
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