Komatsu — Komatsu PC308USLC-3E0 Hydraulic Excavator Operation & Maintenance Manual

. SAFETY PRECAUTIONS FOR MAINTENANCE NOISE 2 - 41 PRECAUTIONS FOR HIGH VOLT AGE d immediately after it is stopped, e the engine controller and the When the engine is running an after stopped, high volta ge is generated insid controller and the engine inje ctor, and there is dan ger of electrocution. Nev er touch the inside of the controller or the engine injecto r portion. If it is nece ssary to touch the ins ide of the controller or th e engine injector po rtion, please contact y our Komatsu d istributor. When carr ying out maintenance of the engine a nd yo u are exposed to noise for l ong periods of time, wear ear c overs or ear plug s while working.

If the noise from the machine is too loud, it ma y cause te mporary or permanen t hearing problems PRECAUTIONS WITH HIGH-PRESSURE GREASE WHEN ADJUSTING TRACK TE Grease is pumped into the t gh pressure. rack tension adjustment system under hi If the sp making serious ecified procedure for maintenance is not f ollow ed when adjustment, grease dr ain plug (1) ma y fly o ut an d cause injury or property dam age. in plug (1) to loosen the track When l oosening grease dra tension, drain pl never loosen it more t han one turn. Loosen th e grease ug slowly. Never p ut your face, hands, fe et, or any othe r par t of y our body grease drain plug (1).

DO NOT DISASSEMBLE RECOIL SPRING Never disa ssemble the recoil spr ing assembly. The r ecoil spring assembly has a powerful spring th at acts to r educe the impact on the idler. If it is dis assembled by mistake, th e spring may shoot o ut and cause seriou s persona l injury or death. sary to disassemble the recoil spring assembly, always ask your Komatsu distributor to carry out the It is neces operation.