Woodstock Shop Fox W1679 Instruction Manual - Adjusting Knives

ADJUSTMENTS

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Adjusting Knives

The knives in the Model W1679 come from the

factory with jack screws installed. Springs are

also included as an option for knife adjustments,

depending on your preference. Figure 22 shows

an illustration of the cutterhead components.

The knife position should be as precise as possi-

ble in the cutterhead. All knives should be with-

in .002" from one end to the other and within

.002" from one knife to another.

To adjust the knives:

1.

Unplug the jointer!

2.

Remove the cutterhead guard from the

table, so that you have clear access to the

top of the cutterhead.

3.

Remove the pulley cover at the back of the

machine and slowly turn the cutterhead

with the pulley until one of the knives is

exposed and is easily accessible.

4.

Loosen the cutterhead gib bolts so that the

knife is loose. 

5.

Place the knife gauge on the cutterhead as

described in the “Checking Knives” instruc-

tions and as shown in Figure 22. 

6.

Jack Screws—Adjust the jack screws with

an Allen wrench until the knife edge barely

touches the contact point on the knife set-

ting jig. Snug the gib bolts but do not fully

tighten. Repeat this step with each jig

screw on each knife. 

Springs—The springs will push the knife

against the cutterhead to the proper height

(.070" above cutterhead body). Keep down-

ward pressure on the jig until you tighten

the gib bolts. Repeat this step with the

other knives, then snug the gib bolts with-

out fully tightening them.

7.

Start at the beginning knife and slightly

tighten each gib bolt on each knife in the

sequence shown in Figure 23. Repeat this

step two or three times until all gib bolts

are completely tight.

Figure 22. Understanding cutterhead assembly.

Figure 23. Gib bolt tightening sequence.

1

2

3

4

NOTICE

Uneven tightening of the gib bolts may cause

the cutterhead to become unbalanced,

which will lead to premature wear and tear

of the knives and produce poor results!

Wear heavy leather gloves when loosen-

ing/tightening gib bolts in case the wrench

slips and your hand hits the knife. Planer

knives are dangerously sharp. If care is not

taken, serious injury may occur.