Komatsu — 8.1 BEFORE CARRYING OUT MAINTENANCE

¤ WARNING: For reasons of safety, always follow these safety precautions. 8. PRECAUTIONS FOR MAINTENANCE 1-28 NEAT CLEAN WORK PLACE Tidy any tools or hammers that are lying in the work place, wipe up any grease or oil or any other slippery substances, and clean the area to make it possible to carry out the operation in safety. If the work place is left untidy, you may trip or slip and suffer injury. FOLLOW LEADER IN OPERATIONS WITH OTHER WORKERS When carrying out repairs of the machine or removal and installation of components, decide a leader and follow the instructions of the leader.

There is danger that differences of opinion between workers when working together may lead to misunderstandings and cause an expected accident. RADIATOR WATER LEVEL ‡ When checking the radiator water level, stop the engine, let the engine and radiator cool down, then check the sub tank. If the water level in the sub tank is near the upper limit, there is enough water in the radiator. ‡ If the water level in the sub tank is below the lower limit, add water. ‡ There is no need to remove the radiator cap unless the coolant is being changed, but if there is no sub tank, or if it is necessary to remove the radiator cap, do as follows.

• Wait for the radiator water temperature to go down, then check the water level. (When checking how much the water temperature has gone down, bring your hand close to the surface of the engine or radiator without touching it, and check the temperature of the air at the engine or radiator surface.) • Loosen the radiator cap gradually to release the internal pressure before removing the radiator cap. A0055050 A0067380 DO NOT DISASSEMBLE RECOIL SPRING The recoil spring assembly used to cushion the idler has a powerful spring built in, so if it is disassembled by mistake, the spring and other parts may fly out and cause serious injury or death.

Never try to disassemble the recoil spring assembly.