-28-

W1747 20" Planer

6.Position the knife gauge over the knife as shown in Figure 17 and loosen the gib bolts until the knife is completely loose.

7.Jack Screws—Using a 3mm hex wrench, find the jack screws through the access holes in the cutterhead (Figure 19) and rotate the jack screws to raise or lower the knife. When the knife is set correctly, it will barely touch the middle pad of the knife setting gauge. Snug the gib bolts tight enough to just hold the knife in place. Repeat Steps 5-7with the rest of the knives.

Springs—Push the knife down with the gauge so that the knife edge touches the middle pad of the gauge. Hold the gauge down and tighten the gib bolts just tight enough to hold the knife in place. Repeat Steps 5-7with the rest of the knives.

8.Rotate the cutterhead to the first knife you started with. Slightly tighten all the gib bolts by following the tightening sequence shown in Figure 20. Repeat this step on the rest of the knives.

9.Final tighten each gib bolt, then reinstall the top cover, dust port and bolt guard.

OFF

Figure 19. Jack screw access hole.

5

3

1

2

4

6

Figure 20. Gib bolt tigthening sequence.

SERVICE

Chain Tension

The chain drive transfers movement from the handwheel to elevate the table. The chain drive can be adjusted to remove slack if the chain stretches over time or is loos- ened during table leveling procedures.

To adjust the chain tension, do these steps:

1.DISCONNECT THE PLANER FROM THE POWER SOURCE!

2.Remove the motor access panel.

NOTICE

During the next step, DO NOT let the chain fall off the sprockets—returning it to its proper location without changing the table adjustments will be very difficult and time consuming.

3.Loosen the two lock bolts, move the idler sprocket against the chain to tighten it (Figure 21) and re- tighten the locking bolts.

4.Check chain lubrication. Refer to MAINTENANCE on

Page 23 for further details.

Idler Sprocket

Table Height

Adjustment

Chain

Lock Bolts

Figure 21. Underside of table.

Page 30
Image 30
Woodstock W1747 owner manual Chain Tension, To adjust the chain tension, do these steps