Husqvarna DXR300 Operator's Manual page 46

Hydraulic fluid
CAUTION! Allow the machine to cool. Hot oil
!
can cause severe burn injuries.
General
The type of hydraulic oil delivered with the machine is stated
on the decal at the inside of the left top cover. Refer also to
'Technical data" for choice of suitable hydraulic oils.
NOTICE! The machine can be damaged if different types of
hydraulic fluid are mixed. Check which quality of hydraulic
fluid the machine's hydraulic system contains before
refilling or changing. Do not use hydraulic fluid that is not
recommended.
Draining hydraulic fluid
• Manoeuvre the machine so the arm system's cylinders
are retracted and the outriggers are completely folded.
• Undo the air filter so that the overpressure in the tank is
discharged.
• Place a collecting vessel under the tank's drain plug and
open the plug.
• Screw on the drain plug when all the liquid has drained
out.
• Changing oil filters. Refer to 'Oil filter" in the 'Maintenance
and service" section.
• Tighten the air filter.
NOTICE! Do not start the motor when the hydraulic tank is
empty, the hydraulic pump will be damaged.
46 –
English
MAINTENANCE AND SERVICE
Replenishing hydraulic fluid
The machine is equipped with a refill pump.
• Manoeuvre the machine so the arm system's cylinders
are retracted and the outriggers are completely folded.
• Clean the refill pump's suction hose. Remove the plug and
put the hose into the fluid container.
• Go to SERVICE in the menu and the tab OIL REFILL
• Hold the selection key down to refill oil.
• Use the sight gauge to check the oil level when refilling.
• Start the machine and operate the cylinders between
outer and inner end position a number of times to remove
air that might have entered the hydraulic system while
refilling.
Oil filter
CAUTION! Allow the machine to cool. Hot oil
!
can cause severe burn injuries.
• Undo the air filter so that the overpressure in the tank is
discharged.
• Thoroughly clean the outside of the filter and the
surrounding parts.
• Remove the filter cover. Lift up the sealing ring, the spring
and the filter holder together with the filter cartridge.
• Remove the filter cartridge from the filter holder.
• Check whether there is an unusually large amount of large
metal particles or sealing compound in the filter holder. If
this is the case the machine's hydraulic system must be
checked for faults.
• Clean the filter holder with degreasing agent. Rinse with
warm water and blow dry using compressed air.
• Install the new filter in the filter holder and put it in the tank.
Install a new sealing ring.
• Install the spring and the filter cover.
Air filter
• Thoroughly clean the outside of the filter and the
surrounding parts.
• Replace the filter.