Bedienungsanleitung Huvema HU 20F SUPER (Seite 10 von 16) (Englisch)

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9. feeD shafT spring Tension

The feed shaft return spring is set at the factory; however, during the life of the drill press you may want to adjust the

spring so that the feed shaft return pressure suits your operating needs.

Turn the machine off and disconnect it from the mains before maintenance or repairs are performed!

• Take out the screw and take away the cover (figure 12).

• Wipe off any oil on the spring lock cover so it does not slip when you hold the cover. Wear protective gloves.

• Loosen the lock nut (figure 13 and 14) and pull the cover a little bit toward you (see figure 14), so that it comes free

of the spring cover lock slot (figure 15). Note: It is important to keep a good grip during this step. Letting go of the

cover will cause the spring to rapidly uncoil.

• Rotate the cover counterclockwise to increase spring tension, or let the cover slowly unwind in a clockwise

direction to reduce spring tension.

• Engage the next available spring cover lock slot and push the spring lock cover back.

• Retighten the lock nut and replace the cover.

10. Dimensions

All dimensions in mm.

5-1. Feed Shaft Spring Tension:

The feed shaft return spring is adjusted at thefactory; however, during the life of the drill pressyou may

want to adjust the feed shaft returnspring so the feed shaft return pressure suits youroperating needs.

To adjust the feed shaft spring tension:

1. UNPLUG THE DRIL PRESS !

2. Wipe off any oil on the spring lock cover so itdoes not slip in your fingers when you hold the

cover from spinning (see Figure 28).

3. While holding the spring lock cover against the side of the head stock so the cover stayssplined with

the locking lug; loosen the jam nut and loosen the cover nut approximately1⁄4" (see Figure 30).

4. Put on heavy leather gloves to protect your hands from possible lacerations if the springuncoils

during the next step.

5. Pull the cover outward just enough to disengage the spring-cover lock slot from thelocking lug. Note:

It is important to keep a good grip during this step. Letting go of thecover will cause the spring to

rapidly uncoil.

6. Rotate the cover counterclockwise to increase spring tension, or let the cover slowly unwind in the

clockwise direction to reduce spring tension.

7. Engage the next available spring-cover lock slot with the locking lug and hold the springlock cover

tightly against the side of the headstock.

8. Snug the cover nut against the spring cover just until the nut stops, and then back offthe nut

approximately 1⁄3 turn, or just enough so there is no binding at complete spindletravel.

9. Hold the cover nut and tighten the jam nut against the cover nut.

Figure 27

Figure 29

Figure 30

Figure 28

Lock Nut

Spring Lock

Cover

Spring Cover

Lock Slot

Screw

Wrench

Size 19mm

Figure 13

Figure 14 Figure 15

Figure 12

6.Specification;

Model

Item

JTD-19S

JTD-19SF

Drilling capacity

19mm

Tapping capacity

----------

Spindle taper

M.T.#2

Spindle travel

80mm

Spindle speed (rpm)

50 Hz

210– 2500/min

Number of speeds

10 steps

Motor

0.37kW 400V 3Ph or 0.75kW 400V 3PH

Net weight (kgs)

N.W-80Kg

N.W-92Kg

Dimensions(m/m)

JTD-19S

JTD-19SF

A 1050 1730

B 410

C=470 × c1=280

C=500 × c1=330

D D=280 × d1=280

E 420 800

F 650 1280

G 620

H 180

I 80

T 12

HU 20 Super

HU 20F Super

Figure 16

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