. 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 - 147 PRECAUTIONS WHEN DRIVING MAC HINE When the machin e travels at high spe ed for a long dist ance, the tire s become extremely hot. This causes early w ear of the tires and s hould be avoided as much as possib le. If the machine must be d riven for a long distance, take the following precaut ions. ulations related to this machine, and drive carefully. the machine, carry out the checks before starting.
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 suita ble tire pressure, tr avel speed, or ti re type d iffer according to th e conditio n of t he t ravel surface. Contact your K omatsu distributor or tire dealer for information. The following i s a guide to suitabl e tire pressures and speeds w hen traveling o n a p ave d surface with standard tires. (26.5-R 25A) 60 kPa (4.6 kg/cm2, 65.4 PSI) 60 kPa (3.6 kg/cm2, 51.2 PSI) h (8.7 MPH) pressure before starting, when the tire is cool. Tire pressure Front wheel: 4 60 kPa (4.6 kg/cm2, 60 kPa (3.6 kg/cm2, h (8.7 MPH) Rear wheel:
3 Speed:14 km/ Check the tire pressure before sta rting, when the t 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 are as, do as follows. To prevent the radiator water temp erature from risi ng suddenly, do not suddenl y stop the engine.
Gradually cool the radiator wa ter down before sto pping the engin Always travel with the bucket emp Never put "cal cium chloride" or "d ry ballast" in the tires when tr aveling PRECAUTIONS REGARDING BRAKE FUNCTI ON 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 t his 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