Lead-acid batteries produce flammable and explosive gases. Keep arcs, sparks, flames and lighted tobacco away from batteries. Batteries contain acid which burns eyes or skin on contact. Wear protective clothing. If acid contacts body, flush well with water. For eye contact flush well and get immediate medical attention from a physician familiar with this injury. The maintenance procedures which are given in this manual can be performed by the owner or operator without any specific technical training. Maintenance procedures which are not in this manual must be performed ONLY BY QUALIFIED SERVICE PERSONNEL. Always use genuine DOOSAN replacement parts.
Only authorized personnel should service and repair the machine. Do not allow unauthorized personnel into work area. Lower work equipment and stop engine before performing maintenance. Park machine on firm and level ground. Turn starter switch to "ON' position and keep safety lock lever in "UNLOCK" position. Cycle work levers (joysticks) back and forth, left and right at full stroke 2 to 3 times to eliminate remaining internal pressure in hydraulic circuit. Then move safety lock lever to "LOCK" position. Check that battery relay is "OFF" and main power is shut off. (Wait for approximately one minute after turning "OFF" engine starter switch key and press horn switch.
If horn does not sound, the main power is shut off.) Put blocks under track to prevent the machine from moving. To prevent injury, do not perform maintenance with engine running. If maintenance must be done with engine running, perform maintenance with at least two workers and do the following: One worker must always sit in the operator's seat and be ready to stop engine at any time. All workers must maintain contact with other workers. When maintenance operations are near fan, fan belt, or other rotating parts, there is a potential hazard of being caught in rotating parts. Keep hands and tools away. Never drop or insert tools or other objects into rotating fan or fan belt.
Parts can break off and hit someone. Do not touch any control levers or control pedals. If any control levers or control pedals must be operated, always give a signal to other workers and instruct them to move away. Safety 1-49 DX225LC-3