7
Lowering loader arms
LOWERING LOADER ARMS
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 stop
ping 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 135.
Emergency lowering for loaders with electrically unlockable lowering brake valves if the engine fails:
1. Switch the starting key on (indicator lights must illuminate).
2.
Activate the switch for float position item 1 (Fig. 63).
3. Lower the loader lift arms and the attachment by actuating the control lever.
1
Fig. 63
Emergency lowering of the loader lift arms
135
