Instruction Manual

MS 441 C-M
English
40
Oil pump with increased delivery rate
(available option)
The oil pump with increased delivery
rate can be identified by the groove (2)
in the adjusting screw.
With this oil pump, in setting range a, the
oil tank can run empty before the fuel
tank, thus causing the saw chain to run
dry.
N in setting range a, fill the fuel tank
only half full or refill the oil tank
when the fuel tank is approximately
half empty
N 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.
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.
Taking Care of the Guide Bar
2
3
1
143BA026 KN
Chain
type
Chain pitch Minimum
groove depth
Picco 1/4" P 0.16" (4.0 mm)
Rapid 1/4" 0.16" (4.0 mm)
Picco 3/8" P 0.20" (5.0 mm)
Rapid 3/8"; 0.325" 0.24" (6.0 mm)
Rapid 0.404" 0.28" (7.0 mm)