8. Always disconnect the positive and negative battery cables of the vehicle before doing any welding on the unit. Failure to do so may seriously damage the battery and electrical equipment. Disconnect battery charging alternator lead wire and isolate electronic control components before making welding repairs. It is not necessary to disconnect or remove any control circuit cards on electric drive HAULPAK ® Trucks or any of the "AID" circuit 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. 9. If truck is to be towed for any reason, use a rigid tow bar. Check truck cab for decal recommending special towing precautions. (Also refer to Towing Proce- dure in OPERATING INSTRUCTIONS.) 10. Drain, clean and ventilate fuel tanks and/or hydraulic tanks before making any welding repairs.
Any operating fluid, such as hydraulic oil or brake fluid escaping under pressure, can have sufficient force to enter a person’s body by penetrating the skin. Serious injury and possibly death may result if proper medical treatment by a physician familiar with this injury is not received immediately. 11. Relieve pressure in lines or hoses before making any disconnects. 12. After adjustments or repairs, replace all shields, screens and clamps. 13. Tire Care: Do not stand in front of rim and locking ring when inflating tire mounted on the machine. Observers should not be permitted in the area and should be kept away from the side of such tires.
Do not weld or apply heat on the rim assembly with the tire mounted on the rim. Resulting gases inside the tire may ignite, causing explosion of tire and rim. 14. Only a qualified operator or experienced maintenance personnel who are also qualified in operation should move the truck under its own power in the repair facility or during road testing after repairs are complete. HB2002 4/94 General Safety Rules HB2-5