New Holland WE150B, Service Manual

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INTRODUCTION
Note to the Owner
The wheeled excavators are operation hydraulic ma-
chines.
They essentially consist in a wheeled undercarriage on
which a slewing bearing is mounted, which is coupled to
the upper frame.
The upper frame supports the front attachment, the en-
gine, the hydraulic components, the cab, the fuel tank and
the counterweight.
When the operator activates the controls (hydraulic con-
trol levers and pedals), the hydraulic pumps rotated by the
engine suck oil from the tank and convey it to the control
valve, the control valve, in turn, sends it to the relevant
users.
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A cooling system keeps the hydraulic fluid at a normal
operating temperature.
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Designated use
The machine has been built in accordance with state-of-the-art standards and the recognized safety rules. The ma-
chine must be used in accordance with its designated use, by observing the safety and precautionary rules and by
strictly following the operating instructions. Any functional disorders, especially those affecting the safety of the ma-
chine, should therefore be rectified immediately.
The Excavator is intended to be used in digging and loading operation (with bucket or grab or clamshell bucket),
ground levelling (with blade when installed) and use of hydraulic hammer to break concrete or other solid material.
Notice
A different use of the excavator or of its working equipment:
• For lifting or transporting persons.
• As a working platform.
• For lifting loads without the attachment being approved for this purpose.
• For pulling slung loads.
• For driving in posts, supports, sheet-piles, without the attachment being approved for this purpose.
Is considered contrary to the designated use.
Improper use may cause injury or life-threatening risks for the operator and for other persons.
The manufacturer/supplier cannot be held responsible for any damage resulting from other than the designated use.
The risk involved in such misuse lies entirely with the user.
NOTICE: For clarity purposes, some figures in this Manual show the machine with protection panels or covers re-
moved. Never operate the machine with any protection panels or covers removed.
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