Maintenance 5 5.7.9. Maintenance every 1000 operating hours All maintenance operations to be performed after 10, 50, 100, 250 and 500 hours of operation also fall into this maintenance cate gory. V-Belt, generator – checking and adjusting the ten sion There is danger of severe accidents, if you perform main tenance work at a machine that has not been parked and secured correctly! Park the machine on a solid, even surface and secure it, before you start to perform maintenance work. Danger of injuries! When the engine is in operation, there is danger of severe injuries by moving parts within the engine compartment!
Do not work within the engine com partment, while the engine is in operation. 1. Before you start maintenance work, park and secure the machine as described in the chapter "5.1Maintenance guide 5-2". 2. Press down the V-belt in the middle of the longest straight part. You should be able to press the V-belt down about 10-15 mm. If you can press down the V-belt more than 10-15 mm, adjust the tension as follows: 3. Loosen the fastening screw (1) at the generator. 4. Loosen the connecting screw (2) between the generator and the guide rail. 5. Loosen the fastening screw (3) at the guide rail. 2 6. Tilt the generator to adjust the tension of the V-belt. 7. Fasten the generator and the guide rail.
8. Check the tension of the V-belt and re-adjust it, if required. 1 3 75_220 Service Brake - Checking and refilling oil Alll repairs on the brake system must be performed by a garage which is authorised by Komatsu. Changing oil. Checking tubes and lines. Check the brake discs and brake pads for wear and damage. Adjusting the clearance of the brake disks. Checking and adjusting system pressures Have the system pressures checked and adjusted at an autho rised Komatsu garage. WA90-5 – VEAM270100 5-61 DANGER DANGER