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the parallel stop either along the workpiece edge or
along a guide rail that is available as special
accessory (see section 4.5). The use of a guide rail
achieves a clearly higher cut quality.
5.4 Large cutting lengths
For large cutting lengths (e.g. several beams in a
row) the guide rail can be tilted to the rear by 10° (see
Fig. 5). This makes it easier to guide the machine
straight ahead, in particular at the transition from one
workpiece to the next.
Danger
Pull the power plug during all
service work.
For tilting, first of all the two set screws 28 (Fig. 5) are
unfastened with the enclosed operating tool and the
chain guide rail is swivelled up to the limit stop in the
direction of the rear handle. Then tighten the set
screws again.
6
Service and maintenance
Danger
Pull the power plug during all
service work.
MAFELL machines are designed to be low in
maintenance.
The ball bearings used are greased for life. When the
machine has been in operation for a longer period of
time, we recommend to hand the machine in at an
authorised MAFELL customer service shop for
inspection.
6.1 Machine
The machine must be regularly cleaned off deposited
dust. When doing so, you should clean the ventilation
openings on the motor with a vacuum cleaner.
Only use our special grease, order No. 049040 (1 kg
tin) for all greasing points.
The chain sets used on the machine should be
regularly deresinated, as clean tools improve the
quality of the cut. Deresination is carried out by
soaking the chain set in petroleum or a commercial
deresination agent for 24 hours.
6.2 Guide rail of the chain set
This guide rail must be maintained regularly. This
includes lubricating the chain deflection wheel and
deburring the rail.
Lubricating the carbide guide rail - see Fig. 8
Dismantle chain set (see section 4.2).
Clean lubrication hole.
Place guide rail onto a flat surface.
Press the mouthpiece of the grease gun tightly
into the lubrication hole and press until grease
emerges at the deflection. Use a good, acid-free
bearing grease for this purpose.
Refit the chain set (see section 4.2).
Deburring - see Fig. 9
Dismantle chain set (see section 4.2).
Remove chain from the guide rail.
Remove the burr using a flat file as shown in
Fig. 9.
Replace the chain and refit the chain set (see
section 4.2).
6.3 Chain wheel
The stress on chain wheel 22 (Fig. 3) is particularly
high. If it exhibits extremely visible grooves at the
individual teeth (approx. 0.5 mm / 1/64 in.) it must be
replaced without fail. MAFELL recommends to have
this work carried out by an authorised customer
service shop.
6.4 General sharpening information
Just as important as quality and care of the machine
are quality and care of the saw chain, guide rail and
chain pinion.
If the care of one of these «partners», which are
acting jointly during sawing, is neglected, the
consequences are frequently:
- Wear or destruction of other partners
- Lacking cutting performance
- Bad surface
- A possible safety risk
-27-
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