. OPERATION OPERATION TRAVELING DOWNHILL WARNING with normal deceleration. It is also possible to travel without shifting up. When traveling downhill, do not use the foot brake except in an emergency. Using the foot brake will cause overheating of the front brake and reduce the life. REMARK Do not accelerate or shift up when using the retarder. The engine speed will rise and this may cause the alarm buzzer to sound and the central warning lamp to flash. 3 - 104 Always keep to the permitted spe ed when going downhill using the retarder. If the perm itted speed is exceeded, t he brakes will overheat and will make it imposs maximum permitted speed, see t ible to provide the braking force.
This may lead to ser ious personal injury. For details of the he brake performance graph for the downhill distance and grade. Operate the retarder control leve r slowly. If it is operated suddenly, a sudden braking force will be generated. A s a result the tires may slip and the machine m ay turn in one direction or tip over, and this may lead to serious personal injur y. Do not move the gear shift lever to the N position when the machine is traveling or wh en it is traveling down a s lope. Always place the transmission in gear b · If the transmission is in Neutral In addition, there will be lack of c brake will be poor. · There may also be damage to th efore traveling.
, the engine cannot provide any braking effect and the steering wheel will become eavier. , the engine cannot provide any braking effect and th e steering wheel will beco ooling oil for the retarder, so there is danger that it w ill overheat or that the act uation of the e transmission or other parts of the power train, and th ere is danger of unexpect ed accidents. For the maximum permissible speed when traveling downhill using the retarde r, see the brake perform ance graph for the downhill distance an maximum permissible speed even fail. d graph.
If the machine continues to travel do wnhill at a speed great er than the on the brake performance graph, there is dange r that the retarder will overheat, or If the retarder oil temperature caution lamp on the machine monitor lights up w hen the retarder is bein g used, shift down to travel downhill. (Whe If the retarder system caution immediately, set the shift lev caution lamp to go out.
n this happens, the central warning lamp lights up and the alarm buzz er sounds.) lamp does not go out even when the transmissio n is shifted down, stop t he machine er to the N position, run the engine at 2000 rpm, and wait for the retarder system If the retarder loses its effect when it is used for traveling downhill, do as follo ws. trol lever again. 1. Release the retarder control lever completely, then operate the retarder con 2.
If the retarder has no brakin g effect even when the retarder control lever is o perated again, release the retarder control lever completely, de then ask your Komatsu distr press the brake pedal, stop the machine on flat ground, put blocks und er the tires, ibutor to carry out repairs. If the retarder control lever is o perated when traveling downhill, the transmissio n can be shifted down sooner than