Husqvarna 50 Rancher - Manual (Page 2)

WHAT IS WHAT ON THE CHAIN SAW?
E. Tension the chain while holding up the bar tip. Do not tension the
chain stronger than it can be pulled around by hand.
Tighten the guide bar nuts.
NOTE!
Do not forget to "run in” the chain and guide bar. Please see the
chain manufacturer's recommendation.
1. starter handle 8. Front hand guard
2. Oil filler cap 9. Automatic chain brake
3. Starter 10. Cylinder cover
4. Front handle 11. Choke
5. Fuel filler cap 12. Throttle latch
6. Ignition switch 13. Throttle trigger lockout
7. Throttle trigger 14. Rear handle
ASSEMBLING GUIDE BAR AND CHAIN
A. Undo the guide bar nuts and remove the clutch cover and trans­
port packing piece.
B. Place the guide bar into its rearmost position. Make sure that the
chain tensioning stud is properly in the hole in the guide bar.
Check the chain tension frequentiy for optimai perform­
ance and durabiiity
FUEL AND OIL
The power plant of this chain saw is a twostroke engine, that is run
on a petrol- and oil mixture of certain proportions acc. to the table.
Do not use but a twostroke oil of high
quality, e.g. Husqvarna Twostoke Oil,
that is specially developed for chain
saws.
NOTE!
No extra oil is needed in the petrol dur­
ing the running-in period of the chain
saw.
For lubricating the chain and guide bar
1 1
we recommend a chain lubricating oil
JJ with good adhesive properties.
'I i 3 During the wintertime at air tempera­
tures below 0°C (32°F) some types of
chain lubricating oils become viscous.
This can cause overloading of the oil
pump, which can result in damage of
the pump drive and pump parts. Under
cold weather conditions it is therefore
necessary to use a “wintergrade” oil
which stays fluent. Concerning the
choice of oil and its suitability at different air temperatures, please
refer to your Husqvarna dealer.
NOTE!
On no account waste oil should be used as this can damage the oil
pump.
C. Fit the chain around the drive sprocket and in the groove of the
bar. Start on the upper side of the guide bar.
Make sure that the cutting edges of the sawing teeth along the
top of the guide bar are facing towards the tip. Also check that the
drive links go down properly into the drive sprocket.
D. Tension the chain so that it does not sag along the bottom of the
guide bar. Check that the chain and guide bar fit properly.
Fit the clutch cover and tighten the nuts fingertight only.
Pull the chain a few turns around by hand and check that it can
move freely.
Always top up with fuel and chain lubricant at the same time
OIL MIXTURE;
Husqvarna Twostroke Oil
Ordinary twostroke oil
Pre-mixed oil
1:50 (2 %)
1:25 (4 %)
1:20 (5 %)
Mixing table 2 % 4 % 5 %
Litres
of oil
Pints
of oil
Litres
of petrol
Petrol in
Imp. gallon
Petrol in
US gallon
Litres
of petrol
Petrol in
Imp. gallon
Petrol in
US gallon
Litres
of petrol
Petrol in
Imp. gallon
Petrol in
US gallon
0,2 0,35 10 2,2 2,6 5 1,1 1,3 4 0,8 1,0
0,4 0,70 20 4,4 5,2 10 2,2 2,6 8 1,7 2,1
1,0 1,76 50 11,0 13,2 25 5,5 6,6 20 4,4 5,2