JET 708580 Use and Care Manual download pdf (Page 9)

1. Insert chisel bushing with hole facing forward

into the head. Tighten the screw just enough to

hold the chisel in place.

2. Insert bit into the chisel. The opening in the

chisel should always face to the right or left.

The opening allows chips to escape during

operation.

3. Push the chisel up as far as possible into the

head. Then lower the chisel approximately

1/16” to 3/16”. This may vary depending upon

type of wood. Table 1 shows general

guidelines for distance between points of

chisel and bit point.

4. Tighten the screw to hold chisel in place.

5. Push bit up through the chisel opening as far

as it will go. Lock the drill bit in place with

chuck key.

6. Loosen screw and push chisel up against the

bushing, and tighten the screw. This should

provide the proper distance between the points

of the chisel and the bit.

Type of wood Chisel Size Distance

Softwoods

1/4 to 3/8 1/32

1/2 1/16 to 3/32

Hardwoods

1/4 to 3/8 1/16

1/2 3/32 to 1/8

Table 1

(all dimensions inches)

Adjusting Chisel Parallel to

Workpiece

The chisel can be adjusted parallel to the

workpiece by loosening the screw (A, Figure 8) and

rotating the chisel until the back surface of the

chisel is flat against the workpiece. Tighten the

screw to hold chisel in place.

Figure 8

Storage

If the mortiser will be stored for an extended

period, use the depth stop to help secure the head

in position; this will relieve stress upon the

hydraulic cylinder.

Optional Accessories

1791091 Premium 1/4" Mortise Bit and Chisel Set

1791092 Premium 5/16" Mortise Bit and Chisel Set

1791093 Premium 3/8" Mortise Bit and Chisel Set

1791094 Premium 1/2" Mortise Bit and Chisel Set

Replacement Parts

Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-

800-274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial

Number of your machine available when you call will allow us to serve you quickly and accurately.

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JET 708580 Use and Care Manual Page 9

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