Adjustment Of The Oil Pump; Cooling System; Winter Use - Husqvarna 288XP Operator's Manual

Adjustment of the oil pump

The oil pump can be adjusted to give four different oil flow
rates. To adjust the flow rate, first remove the chain, bar,
clutch cover, centrifugal clutch, and the clutch drum. Using a
screwdriver, adjust the oil flow rate by turning the adjuster
screw one way or the other. The projection on the screw
should point towards the chosen setting. The diagram shows
the setting for flow rate 2.
Recommended settings:
Bar 18"-20": Position 2
Bar 20"- : Position 3-4
WARNING! The engine must not be running
!
when making adjustments.

Cooling system

To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Air guide plate.
3 Fins on the flywheel.
4 Cooling fins on the cylinder.
5 Cylinder cover (directs cold air over the cylinder).
5
4
3
2
1
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Note! The cooling system on a chain saw with catalytic
converter must be cleaned daily. This is particularly important
on chain saws with catalytic converters, because the higher
exhaust temperature requires efficient cooling of the engine
and the catalytic converter unit.
34 –
English
MAINTENANCE

Winter use

Running problems can occur when using the machine in the
cold and snowy conditions caused by:
• Too low engine temperature.
• Icing of the air filter and carburettor.
Special measures are therefore often required:
• Partly mask the air inlet on the starter to increase the
working temperature of the engine.
• Preheat the intake air to the carburettor by using the heat
from the cylinder.
Temperature 0° ° ° ° C or colder:
The cylinder cover is designed so it can be adjusted for
running in cold weather. Twist the winter flap so that
preheated air from the cylinder can pass into the carburettor
space preventing icing of the air filter, etc.
Temperature -5° ° ° ° C or colder:
When using the saw in cold weather or powder snow
conditions you should cover the starter unit with adhesive
tape. This reduces the flow of cold air and prevents large
amounts of snow from being sucked in.
IMPORTANT! If the temperature rises above -5°C or 0°C
respectively the machine MUST be restored to its normal
set-up. Otherwise there is a risk of overheating, which can
cause severe engine damage.
IMPORTANT! Any maintenance other than that described
in this manual must be carried out by your servicing dealer
(retailer).