Grizzly G9979 owner manual Blade Width Pressure Setting, Blade clamping pressure chart

3.Loosen the welding clamps by pulling the lock levers down.

4.Position the back of one blade end evenly against the back of the welding clamp so that the end is midway between the two clamps, then rotate the lock lever all the way up to hold the blade end in place (see Figure 35).

Welding

BladeClamp

End

Lock Lever

Figure 35. Blade end properly position in

welding clamp and locked in place.

5.Set the clamping pressure dial (see Figure 36) to "0".

Note: As the blade material melts to form the weld, pressure is applied to the joint by the welding clamps. The correct amount of pres- sure is set with the clamping pressure dial in a later step.

Clamping

Pressure

WeldingDial

Button

Annealing

Button

Figure 36. Blade ends in correct position for

welding.

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6.Place the other blade end in the opposite welding clamp and position it so that it evenly butts up against the opposing blade end, then lock it in place by rotating the lock lever all the way up, as shown in Figure 36.

Note: For a good blade weld, it is critical that the blade ends evenly butt up against each other.

7.Use the chart in Figure 37 and set the correct clamping pressure setting for the blade.

Blade Width	Pressure Setting
Up to 1⁄4"	1
1⁄4" to 3⁄8"	2–3
Above 3⁄8"	4+

Figure 37. Blade clamping pressure chart.

Burning sparks from the blade welding oper- ation may be thrown in all directions and could cause serious personal injury or fire. When using the blade welder, always protect yourself from the flying sparks and have fire extinguishing equipment readily available. DO NOT weld near flammables.

8.Press and release—DO NOT hold—the weld- ing button.

Note: There is a limit switch that senses the electrical resistance between the blade ends. If there is a adequate amount of welded mate- rial, the limit switch will not allow the welding button to activate the operation again.

G8144Z/G8145Z/G8146Z (Manufactured Since 6/11)