Husqvarna DXR140 Operator's Manual page 47

Cleaning non-return valves
The non-return valves can be cleaned by discharging the
pressure in the accumulator and thus loosening the
tension of the tracks.
• Remove the inspection door.
• Pull out the valve and rotate it a quarter turn to lock it
in open position.
• Operate the outriggers up and down. Hydraulic fluid is
then pumped around and cleans the non-return valve.
• Rotate and release the valve back into position. Operate
the outriggers up and down to tension the track.
• Refit the inspection door.
Hammer lubrication
CAUTION! Exercise great caution during
!
the inspection to ensure that nobody is
injured.
Make sure grease is reaching the hammer by detaching
the lubrication hose from the hammer. Uncouple the tool
hoses. Start the machine and activate the hammer
function.
Tools
Check that the tool can be used in such a way that neither
the operator nor people in the vicinity are exposed to
unnecessary risks. Refer to the supplier's Operator's
Manual for other checks.
Change
General
CAUTION! Chemicals such as
!
degreasing agent, grease and hydraulic
fluid can give rise to allergies in
conjunction with repeated skin contact.
Avoid contact with the skin, use
protective equipment. Changing liquids
and filters must be done in such a way
that the machine's hydraulic system and
the surrounding environment are not
damaged. Dispose of residual products
according to local laws.
Position the machine on a flat surface. Discharge the
machine and allow it to cool. Clean the component before
opening it for refilling in order to prevent dirt getting in. If
the level is low, fill in accordance with the following
instructions.
Hydraulic fluid
CAUTION! Allow the machine to cool. Hot
!
oil can cause severe burn injuries.
MAINTENANCE AND SERVICE
General
The quality of hydraulic fluid that the machine was
supplied with is indicated on the sticker next to the filling
pump.
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.
–
English 47