MAINTENANCE PLAN 4.7.3 CHECKS BEFORE STARTING 4.7.3.a VARIOUS CHECKS DANGER Dirt, oil and fuel spread in the engine compartment near the hot areas may cause fires and damage the machine. Check if there are leakages frequently and carry out the necessary repairs immediately; if this occurs repeatedly, contact your Komatsu Utility Dealer. Before starting the engine, check: 1. If there are loose screws or nuts. 2. If there are oil, fuel or coolant leakages. 3. If the work equipment is worn. 4. The conditions of the rims and the conditions and wear of the tyres. 5. The conditions and efficiency of instruments and warning lights on the dashboard, working lights and direction indicators.
The other general checks concern safety, and precisely: 6. Soundness of the safety belt. 7. Soundness and legibility of the warning plates. 8. Cleanliness of the ladders and handles used to reach the driver’s seat, cleanliness inside the driver’s cab. 176 4.7.3.b CHECKING THE COOLANT LEVEL DANGER • Do not remove the radiator cap; the coolant must be checked with cold engine, through the compensation tank. DANGER • Do not remove the radiator cap; the coolant must be checked with cold engine, through the compensation tank. The coolant level must be checked on the compensation tank (1), with cold engine, and must be included between the lower MIN. and MAX. marks.
The check must be carried out through the hole positioned on the right side of the engine hood and the coolant level must be above the lower MIN. mark. If the level is near the lower MIN. mark, fill the tank with water or coolant, and if the level decreases considerably and constantly, check the radiator-engine and the radiator body for leaks and check the fluid level in the radiator (see “4.7.5.a CHECKING THE RADIATOR FLUID LEVEL”). The compensation tank (1) can be reached after opening the engine hood (see “3.5.1 EN- GINE HOOD”). RWA17140 RWA17140 IMPORTANT • The upper MIN. and MAX.
marks indicate the level reached by the coolant after expansion, at operating temperature.