16. TROUBLESHOOTING 16.1.2 MAINTENANCE OF AIR COMPRESSOR When storing the machine for long time (1 month or longer) NOTICE When using the compressor after storing the machine or leaving the air conditioner unused for long time (1 month or longer), warm the inside of the cab to at least 10°C by running the engine idle, then operate the air conditioner at the MAX COOL mode. The following seizure caused by insufficient lubrication in the compressor can be prevented by this operation. If the machine is stored for long time, oil in the compressor is reduced (it flows to another components).
16.2 METHOD OF TOWING MACHINE WARNING Injury or death could result if a disabled machine is towed incorrectly or if there is a mistake in the selection of the wire rope or drawbar. Always confirm that the wire rope or drawbar used for towing has ample strength for the weight of the machine being towed. Never use a wire rope which has cut strands (A), reduced diameter (B), or kinks (C). There is danger that the rope may break during the towing operation. Always wear leather gloves when handling wire rope. Never tow a machine on a slope. Never go between the towing machine and the towed ma- chine during the towing operation.
If the machine moves suddenly, a load is applied suddenly to the towing wire or drawbar, and the towing wire or drawbar may break. Move the machine gradually to a constant speed. Be extremely careful if there is a failure in the engine or brake system: the brakes will not work. If the steering and the brakes on the disabled machine cannot be operated, do not let anyone ride on the disabled machine. NOTICE The permissible towing capacity for this machine is 497800 N (50770 kg). Do not tow any load greater than this. Towing is only permitted in order to move a disabled machine to a place where it is possible to carry out inspection and maintenance. It must not be towed for long distances.
Please consult your Komatsu distributor for information about towing a disabled machine. 2-88