Taking Care Of The Guide Bar; Shroud; Air Filter System - Stihl MS 261 C-M Instruction Manual

22 Taking Care of the Guide Bar

Use the adjusting screw (1) (on underside of
machine) to vary the oil feed rate as required.
Ematic position (E), medium oil flow rate –
► turn the adjusting screw to "E" (Ematic posi‐
tion).
To increase oil feed –
► turn the adjusting screw clockwise.
Turn reduce oil feed –
► turn the adjusting screw counterclockwise.
NOTICE
The chain must always be wetted with a film of
lubricant.
22 Taking Care of the Guide
Bar
2
► Turn the guide 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.
► Regularly clean the oil inlet hole (1), the oil‐
way (2) and the bar groove (3)
► Measure the groove depth – with the scale on
the filing gauge (special accessory) – in the
area used most for cutting
Chain type Chain pitch
Picco 1/4" P
Rapid 1/4"
Picco 3/8" P
Rapid 3/8"; 0.325"
Rapid 0.404"
If groove depth is less than specified:
► 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.
0458-153-0121-C
23.1
► To switch off the engine, move the Master
► Push the hand guard forward – the chain is
► Open the twist locks (1) by turning them 1/4
► Remove the shroud (2).
1
3
23.2
► Place the shroud in position.
► Close the twist locks by turning them a 1/4
The air filter system can be adapted to suit differ‐
ent operating conditions by installing different fil‐
ters. Changing a filter is accomplished quickly
and simply.
Minimum
groove
depth
4.0 mm
4.0 mm
5.0 mm
6.0 mm
7.0 mm
► HD2 Filter Universal filter for almost all operat‐

23 Shroud

Removing the Shroud
Control lever in the direction of STOP or † –
when released, the Master Control lever
springs back to the run position F.
locked.
1
turn counterclockwise with the combination
wrench.
Installing the Shroud
turn clockwise.

24 Air Filter System

ing conditions (from very dusty to very cold)
English
1
2
1
29