16. TROUBLESHOOTING 16.5.1 STARTING ENGINE WITH BOOSTER CABLE When starting the engine with a booster cable, do as follows: Precautions when connecting and disconnecting booster cable NOTICE The size of the booster cable and clip should be suitable for the battery size. The battery of the normal machine must be the same capacity as that of the engine to be started. Check the cables and clips for damage or corrosion. Make sure that the cables and clips are firmly connected. PC450-ENG 2-91 WARNING • When connecting the cables, never contact the positive =+a n d negative - terminals. • When starting the engine with a booster cable, always wear safety glasses.
• Be careful not to let the normal machine and problem machine contact each other. This prevents sparks from generating near the battery which could ignite the hydrogen gas given off by the battery. If hydrogen gas explodes, it could cause serious injury. • Make sure that there is no mistake in the booster cable con- nections. The final connection is to the revolving frame, but sparks will be generated when this is done, so connect to a place as far as possible from the battery. (However, avoid connecting the cable to the work equipment, as conduction is poor.) • Use care when removing the cables from the machine that has been started.
Do not allow the cable ends to contact each other or the machine, to avoid hydrogen explosion. WARNING