Komatsu — 12.5 CHANGING GEAR SPEED

12. OPERATION 12.5 CHANGING GEAR SPEED WARNING When traveling at high speed, do not change the gear speed suddenly. When shifting gear, use the brakes to reduce the travel speed, then shift gear. Shift the gear as follows. Move speed control lever 1 to the desired position. Only 1st or 2nd speeds are used for digging and loading opera- tions, so actuate speed control lever stopper. REMARK This machine is equipped with a kickdown switch that shifts the gear down to 1st if the button at the tip of the lift arm control lever is pushed when the machine is traveling in 2nd gear. We recommend the use of the kickdown switch when carrying out digging or loading operations in 1st or 2nd gear.

For details of use, see “11. EXPLANATION OF COMPONENTS”. REMARK If the gear shift lever is operated slowly or it is stopped between speed ranges, error code “CALL” may be displayed. This is not a failure: the gear shift lever must be operated to complete the gear shifting within 2 seconds. 2-53