Blade Tension; Changing Blades - Jet HVBS-7MW Operating Instructions And Parts Manual

4. Adjust the movable vise parallel to the fixed
vise by loosening bolt (A, Figure 13), adjusting
to parallel, and tightening bolt.
Figure 12
Figure 13
To set vise for maximum width of stock cutting:
1. Remove the nut and bolt assemblies.
2. Position the vise and re-install the bolt
assemblies as pictured in Figure 12.

7.5 Blade tension

Disconnect
power source. Blades are sharp; use extra care
when removing, installing or adjusting. Failure
to comply may cause serious injury.
Blade tension is important to the proper operation
of the saw. Proper blade tension is 22,000 to
25,000 lbs. per square inch as measured on a
blade tension gauge.
To set the blade tension without the use of a blade
tension gauge:
1. Install blade between the wheels, and insert
blade between the bearings on the blade
guides.
2. Tension blade slightly to remove any sag in
blade between blade wheels.
machine from
11
3. Turn blade tension knob (A, Figure 14) one
and three quarter to two revolutions clockwise.
This equals approximately 23,000 lbs. of blade
tension.
Do not overtighten blade. This
may cause blade to stretch and warp.
Figure 14
4. After blade has been completely installed,
close the covers, connect to power source,
and run saw for two to three minutes so the
blade can seat properly.
5. Disconnect machine from power source. Open
the cover and loosen blade just until it begins
to sag.
6. Tighten blade until
between the blade wheels and all sag has
been eliminated.
7. Tighten blade by turning blade tension wheel
two full revolutions. Blade is now properly
tensioned and ready for use.
8. Close the covers and connect machine to
power source.

7.6 Changing blades

Never operate this saw unless
all blade guards are installed and in proper
working order. Never adjust blade brush while
machine is running.
This machine is designed and
intended for use with blades that are 3/4" wide
by 0.032" thick x 93" long. Use of blades with
difference specifications may cause inferior
performance.
1. Disconnect machine from power source.
it becomes straight