Never attempt to alter or modify any type of protective structure reinforcement system, by drilling holes, welding, remounting or relocating fasteners. Any serious impact or damage to the system requires a complete integrity reevaluation. Reinstallation, recertification and/or replacement of the system may be necessary. Contact your Daewoo distributor for available safety guards and/or recommendations if there is any danger of getting hit by objects that could strike the operator's cab. Make sure that all other work site crew members are kept well away from the excavator and safe from possible hazards.
HAOA100L Figure 11 For breaker operation, install a front guard and apply a laminated coating sheet to the front glass. Contact your DAEWOO distributor for recommendations. When carrying out demolition or cutting operation, install a front guard and top guard, and apply a laminated coating sheet to the front glass. When working in mines or quarries where there is danger of falling rock, install FOPS (Falling Objects Protective Structure) and apply a laminated coating sheet to the front glass. If any glass on the machine is broken, replace it with new glass immediately. ATTACHMENT PRECAUTIONS Option kits are available through your dealer.
Contact Daewoo for information on available one-way (single-acting) and two-way (double-acting) piping / valving / auxiliary control kits. Because Daewoo cannot anticipate, identify or test all of the attachments that owners may wish to install on their machines, please contact Daewoo for authorization and approval of attachments, and their compatibility with options kits. ACCUMULATOR The pilot control system is equipped with an accumulator. For a brief period of time after the engine has been shut down, the accumulator will store a pressure charge that may enable hydraulic controls to be activated.
Activation of any controls may enable the selected function to operate under force of gravity. When performing maintenance on the pilot control system, the hydraulic pressure in the system must be released as describe in “Handling of Accumulator” on page 4-66. The accumulator is charged with high-pressure nitrogen gas, so it is extremely dangerous if it is handled in the wrong way. Always observe the following precautions; Do not drill or make any holes in the accumulator or expose it any flame, fire or heat source. Do not weld on the accumulator, or try attaching anything to it.
When carrying out disassembly or maintenance of the accumulator, or when disposing of the accumulator, the charged gas must be properly released. Contact your Daewoo distributor. Wear safety goggles and protective gloves when working on an accumulator. Hydraulic oil under pressure can penetrate the skin and cause serious injuries. 022-00058E Operation and Maintenance Manual Safety 1-19