Jet Tools JPM-13CS Feed rate adjustment, Knife adjustment, Adjusting V-Belt Tension

2.Measure the cut piece.

3.Adjust pointer accordingly.

10.3Feed rate adjustment

The planer/molder has two speeds that feed the work piece, at 10 feet per minute (FPM) for improved surface finish when molding and 20 FPM for faster planing.

To change the feed rate gears:

1.Disconnect machine from power source (Unplug).

2.Remove acorn nut holding the gear cover.

3.Remove two hex socket cap screws and two washers.

4.Remove gears and position according to operation. See gear chart (Figure 7).

5.Replace screws and washers to hold gears in place.

6.Replace cover and acorn nut.

10.5Knife adjustment

Any adjustment or replacement of knives must be done to all three knives at the same time. Failure to comply may result in an out-of-balance cutterhead which will lead to bearing failure.

Use caution when placing hands near the cutterhead. Knives are extremely sharp. Failure to comply may cause serious injury.

1.Disconnect machine from power source (Unplug).

2.Remove screws securing dust hood and dust chute.

3.Remove dust hood and dust chute.

4.With a marking pen, label each knife on the cutterhead one, two, and three for easy identification.

5.Loosen all lock bar screws on blade number one.

6.With the brass bar and a mallet, carefully tap on each end on the outside of the set screws for all three lock bars on knife number one. This loosens the taper fit of the lock bar.

7.Raise or lower knife by turning jack screw. Knife is at correct height when knife tip just touches center tip of knife gauge (Figure 8).

Figure 7

10.4Adjusting V-Belt Tension

1.Disconnect machine from power source. (Unplug)

2.Remove stand cover on left of stand.

3.Loosen four round cap hex socket slot screws holding motor plate to stand.

4.Push down on motor to tension belt. Belt is tensioned properly when moderate finger pressure on belt midway between the two pulleys causes approximately 1/4” deflection.

5.Tighten four round cap hex socket slot screws.

6.Replace stand cover.

Figure 8

8.Place knife gauge at other end of knife number one.

9.Raise or lower knife to correct height.

10.Tighten knife bar locking screws. Note: Tighten each large lock bar independently. Take half turns alternating on each end until lock bar is tight against the knife. Tighten small lock bar after two large lock bars are tight. The small lock bar requires two spacers to firmly hold the knife. Tighten in the same manner as the large lock bars.

11.Continue to check knife height with gauge until set screws are firmly tightened.

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