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Taking Care of the Guide Bar
2
1
Turn the guide bar over – every time
N
you sharpen the chain and every
time you replace the chain – this
helps avoid one-sided wear,
especially at the nose and
underside of the bar.
Regularly clean the oil inlet hole (1),
N
the oilway (2) and the bar groove
(3).
Measure the groove depth – with the
N
scale on the filing gauge (special
accessory) – in the area used most
for cutting.
Chain
Chain pitch
Minimum
type
groove depth
Picco
1/4" P
0.16" (4.0 mm)
Rapid
1/4"
0.16" (4.0 mm)
42
Picco
3/8" P
Rapid
3/8"; 0.325"
Rapid
0.404"
If groove depth is less than specified:
Replace the guide bar.
N
The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the bar rails.
3
0.20" (5.0 mm)
Air Filter System
0.24" (6.0 mm)
0.28" (7.0 mm)
The air filter system can be adapted to
suit different operating conditions by
installing a choice of filters. Changing
the filter is quick and simple.
The saw comes standard with either a
fabric filter or a fleece filter.
Fabric filter
For normal operating conditions and
winter operation.
Fleece filter
For dry and very dusty work areas.
MS 250
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