Hyundai HL930A Operation & Maintenance Manual page 246

(4) Dust seals are mounted on the rotating part of
the working device to extend the lubricating in-
terval.
Mount the lip facing out when replacing
the dust seal.
If it is assembled in wrong direction, it
will cause fast wear of pin and bushing,
and create noise and vibration during
operation.
Make sure the seals are not damaged or
deformed.
42) WORKING EQUIPMENT SUPPORT
When carrying out inspection and maintenance with
the equipment raised, fit a stand under the lift arm
securely to prevent the work equipment from coming
down. In addition, set the work equipment control
levers to the Hold position and put the pilot cut off
switch to the OFF position.
Outside
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