Husqvarna DXR300 Operator's Manual page 45

Tool attachment
WARNING! The tool attachment's cotter and
!
pin are important safety components. A
worn or damaged cotter must be replaced
with an original spare part, manufacturing
your own cotters is not permitted.
Check that the tool attachment is complete and that all parts
are intact and correctly mounted.
Track tension
Checking automatic track tension
Correct track tensioning is important for the service life of the
track and the track tensioning.
• Extend the outriggers. Let the machine rest on its
outriggers.
Remove the inspection door.
• Pull out the valve and rotate it a quarter turn to lock it in
open position.
• Slide the tensioning wheel towards the center.
• Rotate and release the valve back into position.
Automatic track tensioning can be done in two different ways.
1 In the service menu under the tab "Track tension" the
tracks can be tensioned automatically. Hold the selection
key down to activate the track tension.
2 The caterpillar tracks are tensioned automatically when
the outriggers are up.
Should demolition material or suchlike enter into the side of
the tracks during operation, their spring function should
prevent breakdowns and stoppages. The spring function
consists of a hydraulic accumulator.
• If the tracks become slack it can be due to one of the track
tensioning function's non-return valves being blocked or
broken.
• If the belts do not spring, the hydraulic accumulator may
be defective.
MAINTENANCE AND SERVICE
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.
• 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.
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.
– 45
English