Safety instructions
Service Manual
Safe maintenance of the machine • Deformation of the hose when pressurised, depressurised, or at bends, resulting in separation of the layers, bubbles, etc. • Leakage • Non-compliance with installation requirements • Damage or deformation of the hose fittings, which might impair the fitting strength of the connection between fitting and hose • Disconnection of the hose from the fittings • Corrosion at the fittings, impairing its function and strength – Always replace hoses and hose connections with original spare parts. – Ensure that all hoses and lines are installed and connected properly. Do not confuse connections. – When replacing hoses and hose lines: • Ensure that the hoses are installed without torsion. For high-pressure hoses first insert the screws at the pipe clips or full flanges at both ends, and then tighten them. • For high-pressure hoses and lines with angled fittings, first tighten the flange at the angled fitting and then the one at the straight fitting. • Pipe clamps at other point of the hose may not be attached and tightened, when the hose ends are properly secured. • Daily inspect all hose clips, covers and protective devices to ensure that they are properly secured and tightened. Avoid vibration and damage during operation. • To prevent chafing, install hoses and lines in such a way that they are not in contact with other hoses, lines or machine parts. • We recommend keeping a minimum distance of 1/2 the outer hose diameter between the hose and any other parts. The distance should in any case not be less than 10 to 15 mm. • When replacing hoses and hose lines connected to moving parts (e.g. from the boom to the stick), first check that they are not rubbing on any other parts when the machine is operated.
12.10
Cab protection (FOPS) For certain machine applications LIEBHERR offers optional cab protection systems of various designs. These systems consist of a full length FOPS (falling objects protective structure) or a top guard and front guard to protect the operator's cab and windscreen area from falling objects (for example rocks or debris). The full length FOPS wraps around the operator's cab, is mounted to the uppercarriage and is a stand-alone system. The top and front guards are either bolted individually or in combination to the cab structure. In that case the operator's cab is also part of the cab protection system and is subject to the following instructions. – Never operate a machine if one of these protections is damaged in any way. – Damages may occur due to: • structural modifications or repairs (for example welding, cutting or drilling) • deformation after an accident • falling objects – Structural modifications or repairs of any kind are prohibited without the expressed, written approval of LIEBHERR.
1.10.14 copyright by
MJFCIFSS