2.1 SAFETY INSTRUCTIONS SAFETY GAS, DUST, STEAM AND SMOKE Operate internal combustion engines and fuel operated heat- ing systems only on adequately ventilated premises. Before starting the machine on enclosed premises, make sure that there is sufficient ventilation. Observe the regulations in force at the respective site. Carry out welding, flame-cutting and grinding work on the machine only if this has been expressly authorized, as there may be a risk of explosion and fire. Special care must be taken before welding, flame-cutting and grinding operations are carried out on the counterweight.
The filling of the coun- terweight chambers can create explosive gases which will accumulate in the chambers of the counterweight. These gases must be expelled before welding, flame-cutting and grinding operations are carried out on the counterweight. Danger of explosion. Follow the instructions given in PARTS & SERVICE NEWS No. AH04518 for expelling the gases from the counterweight chambers. Before carrying out welding, flame-cutting and grinding oper- ations, clean the machine and its surroundings from dust and other inflammable substances and make sure that the pre- mises are adequately ventilated (risk of explosion).
HYDRAULIC AND PNEUMATIC EQUIPMENT Work on hydraulic equipment may be carried out only by per- sons having special knowledge and experience in hydraulic systems. Check all lines, hoses and screwed connections regularly for leaks and obvious damage. Repair damage immediately. Splashed oil may cause injury and fire. Depressurize all system sections and pressure pipes (hydraulic system, compressed-air system) to be removed in accordance with the specific instructions for the unit con- cerned before carrying out any repair work. Hydraulic and compressed-air lines must be laid and fitted properly. Ensure that no connections are interchanged.
The fittings, lengths and quality of the hoses must comply with the technical requirements. NOISE During operation, all sound baffles must be closed. Always wear the prescribed ear protectors. OIL, GREASE AND OTHER CHEMICAL SUBSTANCES When handling oil, grease and other chemical substances, observe the product-related safety regulations. Be careful when handling hot consumables (risk of burning or scalding). 24