. OPERATION OPERATION If the braking capacity limit is exceeded, a forced cooling system for the brakes is needed, so please consult your Komatsu distributor. 3 - 146 PRECAUTIONS WHEN DRIVING MAC When the machin e travels at high spe ed for a long dista nce, the tire s become extremely hot. This causes early w ear of the tires and s hould be avoided as much as possibl e.
If the machine must be d riven for a long distance, take the following precaut Follow the reg ulations related to t his machine, and drive carefu Before driving the machine, carry out the checks b efore starting The most suit able tire pressure, tr avel speed, or tir e type differ according to th e conditio n of t Contact your K omatsu distributor or tire dealer for i ravel surface. The following i s a guide to suitabl e tire pressures a nd speeds w hen traveling o n a p ave d surface with standard tires. (23.5-25 -20PR) 00 kPa (4.0 kg/cm2, 56.9 PSI) 50 kPa (3.5 kg/cm2, 49.8 PSI) h (8.7 MPH) Tire pressure Front wheel: 4 00 kPa (4.0 kg/cm2, 50 kPa (3.5 kg/cm2, h (8.7 MPH) Rear wheel:
3 Speed:14 km/ Check the tire pressure before sta rting, when the ti re is cool. After traveling for one hour, stop th e machine for 30 minutes and check the tires and all pa rts fo r an y abnormality. Check the oil l evel and coolant lev el also. remely cold areas, do as follows. When stoppin g the machine in ext remely cold area s, do as follows. To prevent the radiator water temp erature from risin g suddenly, do not suddenl y stop the engine.
Gradually cool the radiator w ater down before sto pping the engine Always travel with the bucket emp Never put "cal cium chloride" or "d ry ballast" in the t ires when tr aveling PRECAUTIONS REGARDING BRAKE FUNCTIO N When traveling lo ng distances contin uously downhill, the frequenc y of using the brake may increas e. As a result, depending on th e weight of the ma chine and the grade of the slope, the machine's braking capacity may be eat. f the values for this machine. the machine' aking capacity exceeded and th e brakes may overh The table below shows a guideline o f the values for th is machine.
Machine weight (t) Braking capacity limit Slope grade Average travel speed Downhill distance limit (%) limit (km/h (MPH)) (continuous)(km) Downhill distance limit (continuous)(km) 22 - 24 (unloaded) 10 40 (24.9) 2 20 17 (10.6) 1.2 28.5 - 30.5 (loaded) 10 30 (18.6) 1.8 20 12 (7.5) 0.6