LOWERING LOADER ARMS
133
WL50
LOWERING LOADER ARMS7
Emergency lowering for loaders with electri-
cally unlockable lowering brake valves if the
engine fails:
Switch the starting key on (indicator lights must il-
1.
luminate).
Activate the switch for oat position item 1 (Fig. 67).2.
Lower the loader lift arms and the attachment by ac-3.
tuating the control lever.
Fig. 67
Emergency lowering
of the loader lift arms
1
WARNING
Personal injury or equipment damage hazards.
In the event the engine stops and can not be restarted
with the loader lift arms elevated:
Lower the loader lift arms and attachment until they
•
rest on the ground or work surface.
The same procedure shall be used if the hydrostatic
propulsion system stops responding.
In the event of a working hydraulic system failure:
Lower the loader lift arms and attachment as quickly
•
and safely as possible.
If a hydraulic hose fails:
Avoid contact with the oil stream. Working hydraulic
•
oil can exceed 93°C (200°F) causing severe burns.
High pressure oil streams can penetrate the skin
causing serious injury.
Relieve working circuit pressure by activating the
•
control through the full stroke range several times.
Loaders equipped with a load holding control device in
compliance with ISO8643 will stop the loader lift arms
from falling more than 15cm (6”) before stopping if a
hose or hydraulic line suffers a rupture and rapid leak.
Refer to Section 8 »Relieving residual pressure in the
hydraulic system« on page 134.
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