Scheppach HS254 Originalbetriebsanleitung Seite 48

14.3 Check and maintain carbon brushes (Fig. 20)
If the machine is new, check the carbon brushes after
the first 50 operating hours or if a new brush has been
mounted. After the initial check, check every 10 operat-
ing hours.
If the carbon is worn down to a length of 6 mm, or the
spring or the shunt wire is burnt or damaged, both brush-
es must be replaced. If the brushes are found to be usa-
ble after removal, they can be reinstalled.
1. Place the circular table saw on its side on a flat sur-
face.
2. Open the lock (as shown in Fig. 20) anti-clockwise
using a slotted screwdriver (not included in the
scope of delivery).
3. Then remove the carbon brushes.
4. Check the carbon brushes as described above.
5. Re-insert the carbon brushes in reverse order.
14.4 Replacing the saw blade
m
WARNING
Danger of injury! Improper handling of the circular table
saw may result in serious injury.
m
WARNING
Risk of injury due to unexpected start-up of the machine
- Pull the mains plug out of the outlet.
m
WARNING
Risk of injury to fingers and hands due to sharp edges
- Wear protective gloves.
14.4.1 Removing the saw blade guard and the
table inlay (Fig. 7, 8)
1. Press the locking pin (1a) on the saw blade guard
(1).
2. Hold down the locking pin (1a) and remove the saw
blade guard (1) from the groove of the riving knife
(2).
3. Set the saw blade (3) to the max. cutting depth,
move to the 0° position and lock in place (see 11.3).
4. Loosen the two Phillips screws (23a) with a Phillips
screwdriver.
5. Remove the table inlay (23) from the saw table (4).
14.4.2 Removing the saw blade (Fig. 7, 8, 9)
PREREQUISITE: The saw blade (3) has been set to the
maximum cutting depth (see 11.2).
48 | GB
1. Place the 21 mm ring spanner (E) on the outer
flange (3b) and thus fix the drive shaft.
2. Turn the flange screw (3c) anti-clockwise with the
13 mm ring spanner (D) to open the flange screw
(3c).
3. Hold the saw blade (3) carefully with one hand.
4. Remove the flange screw (3c) and the outer flange
(3b) from the drive shaft.
5. Now remove the saw blade (3) from the drive shaft
and carefully draw it up and out of the saw table (4).
14.4.3 Inserting saw blade (Fig. 9)
1. Clean the outer flange (3b) carefully, before fitting a
new saw blade (3).
2. Clean the inner flange (3a) and reinsert it.
3. Place a new saw blade (3) on the drive shaft. Ob-
serve the direction of rotation: The cutting angle of
the teeth must point in the running direction (for-
wards). The running direction is usually also marked
on the saw blade(3).
4. Fit the outer flange (3b) back on the drive shaft. En-
sure the correct alignment of the outer flange (3b).
5. Tighten the flange screw (3c) on the drive shaft by
hand.
6. Turn the saw blade (3) carefully in the running di-
rection: It must be precisely centred and must not
"wobble". Check that the saw blade (3) and outer
flange (3b) are seated correctly. Align the parts once
more, if the sawblade is not precisely centred.
m
WARNING
Warning of unforeseeable hazards and product damage
- Check the setting of the saw blade after every saw
blade change.
7. Hold the outer flange (3b) in place with the 21 mm
ring spanner (E).
8. Tighten the flange screw (3c) clockwise with the
13 mm ring spanner (D).
9. Fit the table inlay (23) and the saw blade guard (1)
(see 9.5).
10. Check that the riving knife (2) is set correctly (see
9.5.4).
15. Repair & ordering spare parts
After repairs or maintenance, make sure that all safe-
ty-related parts are installed and are in perfect condition.
All parts which may cause injury must be kept where
they are inaccessible to children or others.
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