Taking Care Of The Guide Bar; Shroud - Stihl MS 291 C-Q Manual De Instrucciones

Taking Care of the Guide
Bar
2
1
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.
MS 291 C-Q
Chain type
Picco
Rapid
Rapid
Rapid
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.
3
Pitch Minimum
groove
depth
3/8" P 0.20"
(5.0 mm)
1/4" 0.16"
(4.0 mm)
3/8"; 0.325" 0.24"
(6.0 mm)
0.404" 0.28"
(7.0 mm)

Shroud

Remove shroud
N Move the Master Control Lever to
the stop position 0
N Push the front hand guard forwards
– the saw chain is blocked
2
1
N Loosen screws (1)
N Remove the shroud (2)
Refitting the shroud
N Refit the shroud and tighten the
screws
English
1
1
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