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Belt Tension Adjustment; Maintenance And Lubrication - Ferm FHB-940 Gebrauchsanweisung

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Fig. 2
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wish to run the lathe slower, after refering to the speed
chart (say 1.310 RPM), you must shift the belt inward.
-
Raise the belt guard. To make the lathe go SLOWER
shift belt inward. To make the lathe go FASTER shift
belt outword.
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Rotate the motor pulley COUNTERCLOCKWISE
with the left hand while pushing on the belt with your
right hand.
-
Continue to rotate the pulley while pushing on the
belt until it "climbs" down into the next step of the
motor pulley. Now rotate the spindle CLOCKWISE
with your right hand while pushing on the belt with
your left hand. The belt will climb up into the next step
of the spindle pulley.

3. BELT TENSION ADJUSTMENT

Belt tension is provided by the weight of the motor pivo-
ting the motor mounting bracket downward through the
hinge of the hinge bracket. To decrease the belt tension,
tighten the adjustment bolt located in the corner of the
motor mounting bracket, thus restricting downward pi-
voting travel. Conversly, loosening the adjusting bolt al-
lows increased pivot on the bracket thus increasing belt
tension.
4. SPINDLE TURNING
If you have never done any amount of wood turning, we
suggest that you practice using the various turning tools.
Start with a small spindle turning.
Be sure to study the following pages of this manual. They
explain and illustrate the correct use of the turning tools,
the positioning of the tool rest and other information to
help you gain experience.
1. Select a piece of wood 300 x 50 x 50 mm.
2. Draw diagonal lines on each end to locate the centres
(Fig. 11).
3. On one end, make a saw cut approximately 1,5 mm
deep on each diagonal line, This is for the spur centre.
4. The other end is the cup centre. Place the point of the
cup center on the wood where the diagonal lines
cross.
5. Drive the cup centre into the wood. Use a wooden
mallet or a plastic hammer, but put a piece of wood on
the end of the cup centre to protect it. (Fig. 12).
6. Remove the cup centre and drive the spur centre into
the other end of the wood. Make sure the spurs are in
the saw cuts. Remove the spur centre.
7. Make sure the centres and the hole in the spindle and
the tailstock ram are clean. lnsert the spur centre into
the headstock and the cup centre into the tail stock
and tap them in lightly with a piece of wood. Do not
drive them in.
8. lf the cup centre is not of the ball bearing type, put a
drop of oil or wax on the wood where it contacts the
cup centre. This wilt lubricate the wood while it is tur-
ning.
9. Place the wood between the centres and lock the tail
Ferm
stock.
10. Move the cup centre into the wood by turning the
hand wheel. Make sure that the cup centre and spur
centre are 'seated' into the wood in the holes made in
steps e and f above.
11. Adjust the tool rest approximately 3 mm away from
the corners of the wood and 3 mm above the centre
line. (Fig. 13) Note the angled position of the tool rest
base. Lock the tool rest base and the tool rest.
12. Look at the speed chart. Notice that a 50 mm square
turning up to 457 mm long should run at 850 R.P.M.
for "roughing". Move the V-belt on the pulleys to the
next to the slowest speed. Rotate the wood by hand
to make sure that the corners do not strike the tool
rest, and that the indexing pin is not engaged. (Fig. 14).
6. MAINTENANCE AND
LUBRICATION
For your own safety, turn switch "off" and
!
remove plug from power source outlet, before
maintaining or lubricating your lathe.
A coat of automobile type wax applied to the bed will help
to keep the surfaces clean and allow the tool rest and tail
stock to move freely.
If the power cord is worn or cut, or damaged in any way,
have it replaced immediately.
LUBRICATION
All of the ball bearings are packed with grease at the facto-
ry. They require no further lubrication. Periodically lu-
bricate the ram in the tail stock with oil.
7. trouble shooting
1. Motor will not run.
Defective on/off switch or defective cable.
- Replace defective parts before using lathe again.
Burn out motor.
- Any attempt to repair this motor may cause a hazard
unless repair is done by a qualified service technician.
2. Lathe slows down when turning.
V-Belt too loose
- Adjust belt tension, see basic lathe operations.
3. Tail stock rocks back and forth excessively.
Adjusting screw too loose.
- Adjust screw, see assembly section.
4. Head stock loose on bed.
Setscrew not to tight.
- Tighten setscrew, see assembly section.
5. Wood burns at tail stock end.
Cup centre too tight or not lubricated.
- Back off tail stock ram and lubricate cup centre. See ba-
sic lathe operations (spindle turning).
5

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