OM2214 Safety - Section 22 Warnings and Cautions Page 22-5 High voltage dangerplates and caution plates are attached to the doors of the electrical control cabinet. The high voltage plate is also attached to the blown grid housing, extended range housing, rectifier hous- ing, inlet duct structure and rear hatch cover. Before welding on the truck, always disconnect the positive and negative battery cables of the vehicle. Failure to do so may seriously damage the battery and electrical equipment. Disconnect the battery charging alternator lead wire and isolate electronic control components before welding.
(It is not neces- sary to disconnect or remove any control circuit cards on electric drive Komatsu trucks or any of the AID cir- cuit control cards.) Always fasten the welding machine ground (-) lead to the piece being welded; grounding clamp must be attached as near as possible to the weld area. Never allow welding current to pass through ball bearings, roller bearings, suspensions, or hydraulic cylinders. Always avoid laying welding cables over or near the vehicle electrical harnesses. Welding voltage could be induced into the electrical harness and possibly cause damage to components. This plate is mounted on the top side of the blown grid housings.
stepping or standing here may result in serious personal injury. A decal plate is located on the frame near the left hoist cylinder which provides the operator or techni- cian with the hook-up procedure for dumping a loaded, disabled truck, by using a functional truck for hydraulic power. Refer to the Service manual for additional instruc- tions for using this procedure.