909 DP250LS Buku Petunjuk - Halaman 12

Jelajahi secara online atau unduh pdf Buku Petunjuk untuk Bor 909 DP250LS. 909 DP250LS 16 halaman. 1/3 hp 5 speed drill press with laser

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The drill scale is a guide. Always check the depth with a

measuring tool to be sure the correct depth is achieved. If

repeated holes are required, set the setting nuts as follows.

6. After drilling the first hole, and checking the hole is

correct, with the drill turned OFF, lower the drill bit into the

hole and hold with the drill bit fully inserted.

7. Rotate the first setting nut all

the way down so it makes

contact with the cast step on

the housing.

The handle can be rotated

now so the drill bit lifts from

the hole.

8. Holding this first nut with a

spanner, bring the second

nut down so as to sit on top

of the first nut. With a second

spanner, and still holding

the first nut with a spanner,

tighten the second nut on to

the first nut. The setting is

now locked.

9 Repetitive holes can now be drilled with the depth of the

holes limited to the pre set depth as above.

Note.

Always check the depth after setting the stops, as

minor adjustments may be needed.

Constantly check the setting does not alter during drilling.

Changing the speed of the drill press

The speed of the drill press is determined by the size of

the pulley steps that the belt is attached to. Using a smaller

pulley step on the front pulley means a faster drill speed;

using a larger pulley step on the front pulley means a slower

drill speed. The below table indicates the speed of the drill

in the various belt positions.

1. Remove the plug from the mains socket.

2. Loosen and remove the pulley cover screw and lift the

pulley cover (4).

3. Loosen the belt tension knob (10) and push the motor

housing towards the front of the drill press to make belt

changes easier.

4. To select a faster drill speed,

move the belt up to a smaller

step on the front pulley. Then

move it up to the equivalent

step on the rear pulley.

Rotating the pulleys and

"rolling" the belt onto the larger

pulley will make this easier.

5. To select a slower drill speed,

move the belt down to a

smaller step on the rear pulley.

Then move it down to a larger step

on the front pulley. Rotating the

pulleys and "rolling" the belt onto

the larger pulley will make this

easier.

Note.

The belt should always be on

the same relative step on the front

and rear pulleys, for example if it is

on the top step of the front pulley

then it should also be on the top step

of the rear pulley.

6. Tighten the belt tension knob (10)

to secure the motor in position.

2500

1900

1400

890

500