operation
Refer to Figures 6, 7, 8 and 9.
Operation of any power tool can result in
foreign objects being thrown into eyes which
can result in severe eye damage. Always wear safety goggles
complying with United States ANSI Z87.1 (shown on package)
before commencing power tool operation.
preparing Blade for Welding
A properly prepared blade is essential in producing a high-quality,
long lasting band saw blade. The blade must be cut to proper
length. Blade ends should be cut and ground square. Any rust, oil
or dirt must be removed. Some teeth must be ground off blade
ends depending upon the pitch of the blade.
Blade cutting
Refer to Figure 6.
Refer to your Band Saw Instruction Manual for the recommended
maximum blade length. Cut blade to maximum length so that
blade can be rewelded if broken.
Cut the blade ends flat, square and smooth using the blade shear.
Lean the back of blade against the shear blade guide when cutting
blade ends (See Figure 6). Use grinder, as needed, to make blade
ends flat, square and smooth.
Blade mounting
Refer to Figure 7.
Clean welder jaw of any scale, oil, rust or dirt. Clean blade ends
which contact welder jaws to provide proper electrical contact.
Set weld pressure adjustment knob to "0" (released). Insert one
end of blade into stationary jaw with teeth facing out and blade
end centered between jaws.
Firmly seat back of blade against back alignment surface of welder
jaw and clamp blade tight with the jaw clamping handle (See
Figure 7).
Insert other end of blade into movable jaw; butt the blade ends
together and clamp tight.
IMPORTANT: The blade ends should butt against each other over
the full width of the blade and should not overlap (See Figure 7).
tooth spacing
Refer to Figure 8.
Approximately 1/8” of blade will be consumed during the welding
process. This blade loss must be taken into account.
All blades must have some of the teeth ground off so that the
tooth spacing will be uniform after welding.
Tooth grinding procedure must be done carefully in order to grind
the proper number of teeth and not to grind below gullet which
would weaken the blade.
5
figure 6 – Blade cutting
Butt back of blade
against shear
alignment surface
figure 7 – Blade mounting and clamping
Correct – Grind blades square and clamp straight
Correct – Clamp blades flat with no overlap
Incorrect – Blades clamped at angle
Incorrect – Blades not ground square
Incorrect – Blades overlap
figure 8 – tooth spacing (tpi = teeth per inch)
4TPI
6TPI
8TPI
10TPI
20TPI
12TPI
16TPI
1/4 Tooth
3/8 Tooth
1/2 Tooth
5/8 Tooth
1¼ Tooth
3/4 Tooth
3/4 Tooth