33. HANDLING AUTO-GREASING SYSTEM 33.1.2 SETTING GREASING TIME The set time and greasing frequency limit differs according to the operating condition and greasing plan for the machine, so set the following items to carry out suitable centralized greasing. Greasing interval (Hr): Greasing interval for automatic operation Greasing time (min): Length of time pump is operated for each greasing operation Greasing frequency limit (times): No. of times for operating pump before the 1600 cc grease cartridge becomes empty The settings when shipping from the factory are as follows. Greasing interval: 2 hours Greasing time: 15 minutes Greasing frequency limit:
75 times The grease level alarm is set to sound after 300 hours on the hourmeter (when normal operation). Setting greasing time in cold areas In cold temperatures, the viscosity of the grease increases and the resistance inside the piping becomes greater, so it is necessary to extend the length of the greasing operations in order to ensure that the greasing is carried out properly. If the machine is used in ambient temperatures below –20°C, set the greasing time to 20 minutes (code No. 7). In addition, use lithium-based grease No. 0. For details of setting the time, see “33.1.3 METHOD OF SET- TING”. When changing the set value, please contact your Komatsu distributor. 5-35