MS 261, MS 261 C
English
40
N Turn the bar over – every time 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.
N Regularly clean the oil inlet hole (1),
the oilway (2) and the bar
groove (3).
N Measure the groove depth – with
the scale on the filing gauge (special
accessory) – in the area used most
for cutting.
If groove depth is less than specified:
N Replace the guide bar.
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.
Removing the shroud
N Move the Master Control lever to the
stop position (0).
N Push the hand guard forward – the
chain is locked.
N Open the twist locks (1) by turning
them 1/4 turn counterclockwise with
the combination wrench.
N Remove the shroud (2).
Installing the shroud
N Place the shroud in position.
N Close the twist locks by turning
them a 1/4 turn clockwise.
Taking Care of the Guide
Bar
Chain type Pitch Minimum
groove
depth
Picco 3/8" P 0.20"
(5.0 mm)
Rapid 1/4" 0.16"
(4.0 mm)
Rapid 3/8"; 0.325" 0.24"
(6.0 mm)
Rapid 0.404" 0.28"
(7.0 mm)
Shroud
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