Safety when servicing
122 General
VOE 2134355130
– When changing oil in the engine and hydraulic system, remem-
ber that the oil may be hot and can cause burns.
– When you are lifting or supporting parts of the machine, use
equipment with a lifting capacity which is at least as great as the
weight of the part in question.
– All lifting devices, e.g. straps, slings, ratchet blocks etc. must
comply with national regulations for lifting devices. Volvo Con-
struction Equipment will not accept any responsibility if any lift-
ing devices, tools or working methods are used other than
those described in this publication.
– When looking for leaks, use a piece of paper or wood, not your
hand.
– Release the pressure in the hydraulic systems, before com-
mencing work.
– Stop the engine before opening the engine hood, radiator cas-
ing etc. Make sure that no tools or other objects, which may
cause damage, have been forgotten in the machine.
– Make sure that all covers on the machine are in position before
the engine is started and the machine again is put to work.
– All pressurized vessels must be opened very carefully so that
any remaining pressure is released slowly.
When the engine is stopped, there is a remaining accumulated
pressure in the system. If a system is opened without having
first released the pressure, liquid under high pressure will jet
out.
Also the check-tightening of leaking couplings and connections
should only be done after all the pressure in the system has
been completely released.
• The hydraulic system: must be isolated from all actuation
of external forces.
– Disused accumulators should first be punctured before they
are discarded as otherwise they may explode at a later stage.
– Never set a relief valve to a higher pressure than that recom-
mended by the manufacturer.
– When installing a two-way radio, a mobile telephone or similar
equipment, the installation should be carried out according to
the instructions of the manufacturer in order to eliminate inter-
ference with the electronic system and components intended
for the function of the machine.
– Do not stand in front of or behind the machine when the engine
is running.
– After the service work has been completed, close and secure
engine hood and all guard plates.
– Measures to be taken in connection with electric welding, See
Electric welding on page 150.
WARNING!
If you have to carry out work on the machine before it has
cooled down: Be careful with hot liquids and hot parts of
the machine to avoid burns.
S80646A
S80647A
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