Husqvarna DXR-310, Operator'S Manual

Page: 61 / 84

MAINTENANCE AND SERVICE
English
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61
Level check
Position the machine on a flat surface. Clean the
component before it is opened for reading or filling in
order to prevent dirt entering the system. If the oil level is
low, refill with the type and quality as per the 'Hydraulic
fluid and lubrication” table in the 'Technical data” section.
Hydraulic fluid
Retract the arm system and raise outriggers/dozer
blades.
Refilling is needed if the level is more than 1 cm below the
max mark.
Slew reduction gear unit
Locate and loosen the dipstick. Wipe it clean, lower it and
read off the level.
Drive motor
Manoeuvre the machine until one of the plugs is level with
the middle of the hub and the other one is at the top
position.
Unscrew the level plug. The oil level should reach up to
the hole.
Hammer lubrication
Check that there is grease in the receptacle.
Wear and damage
Wear of shafts and slide bearings
Bushings and possibly shafts must be changed in loose
joints and cylinder fastenings. Replace or repair damaged
components.
• Bushings shall always be changed in loose joints.
• Shafts must be replaced if they have wear damage. If
there is wear damage on an expanding sleeve it
indicates that it has not been sufficiently tightened.
• Swing joints must be kept lubricated in order to be
able to press out dirt and water that enters and to
reduce wear on shafts and bearings.
Wear to rubber components
Check that caterpillar tracks and outrigger feet are intact.
If they are so worn that the metal is visible they should be
replaced.
Wear to hydraulic hoses
Do not use hoses that are distorted, worn or damaged.
Make sure that the cords are not visible. Always have a
spare hose on hand. Damaged hoses must be replaced
immediately.
• Check that none of the hoses are rubbing against
sharp edges. Be alert to the risk of abrasive jets.
• Adjust the length of hydraulic hoses so that they are
never entirely stretched.
• Ensure that the hose is not twisted during mounting.
• Avoid severe bends in the hose.
Hydraulic couplings
• Check that the couplings are not damaged. Damaged
couplings can damage hoses with the result that they
come off. Change damaged couplings immediately.
• The hydraulic couplings should be lubricated before
tightening to reduce friction.
Wear to electric cables
NOTICE! Deal with worn components as quickly as
possible. There is an increased risk of mechanical
breakdown if the machine is used despite damaged or
worn components.
!
WARNING! The power cable must be
disconnected when electric cables are
checked. Check that the cables’
insulating casings are not damaged.
Change damaged cables immediately.