Komatsu — WHEN REPAIRS ARE NECESSARY

Safety - Section 2 OM2005.1 Page 2-4 General Safety Rules WHEN REPAIRS ARE NECESSARY 1. Only qualified maintenance personnel who under- stand the systems being repaired should accom- plish repairs. 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 Procedure in OPERATING INSTRUCTIONS.) 2. Many components on the HAULPAK ® Truck are large and heavy. Insure that lifting equipment - hoists, slings, chains, lifting eyes - are of adequate capacity to handle the lift. 10. Drain, clean and ventilate fuel tanks and/or hydrau- lic tanks before making any welding repairs. 3.

DO NOT WORK under a suspended load. Do not work under raised body unless body safety ca- bles, props, or pins are in place to hold the body in up position. 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. 4. Do not repair or service truck while engine is running, except when adjustments can only be made under such conditions. Keep a safe dis- tance from moving parts. 5.

When servicing any air conditioning system with refrigerant, wear a face shield and cold resistant gloves for protection against freezing. Be certain to follow all current regulations for handling and recycling refrigerants. 11. Relieve pressure in lines or hoses before making any disconnects. 12. After adjustments or repairs, replace all shields, screens and clamps. 6. Follow package directions carefully when using cleaning solvents. 13. Tire Care: 7. If an auxiliary battery assist is needed, first use one cable to connect the 24V positive (+ ) post of the disabled truck batteries to the 24V positive (+ ) post of the auxiliary assist.

Use second cable to connect the 24V negative (-) post of the auxililary assist battery to a frame ground (-) on the dis- abled truck away from the battery . 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. 8. Always disconnect the positive and negative bat- tery cables of the vehicle before doing any weld- ing 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.

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 mainte- nance personnel who are also qualified in opera- tion should move the truck under its own power in the repair facility or during road testing after repairs are complete. Refer to the welding "Caution" plate located in the cab above the windshield. These instructions MUST be followed when welding is done on the truck to avoid damage to the ATEC components.

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, sus- pensions, 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.