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

. OPERATION DETAILED CONTROLS AND GAUGES Swing Lock Switch WARNING 3 - 35 Fuel Control Dia Dial ( 2) adjusts the engine speed and (a)Lo w idling (M IN): Turned fully to th (b)Fu ll speed (M REMA RK Even if the fuel control dial is turned s everal notches up fro m low idling position ( a) or down from full s peed position (b), the re is a range where the engine speed does n ot change, but this is not an abnormality. Cigarette Lighte r s used to light cigarettes. This s witch (3) i s used to light cigarett To us e, push th e lighter in. After a few seconds it will spring back. Pull o ut the light er and light your cigar ette. e socket is available as a amp.

By re moving th e cigarette lighter, th powe r source fo r the yellow flashing l Max. current is 85 W (24V x 3.5 A). Wh en not usin g the swing operation, e. g. when traveling, put th e swing lock switch to the ON p On slopes, eve n when the swing lock s witch is at the ON posit ion, the weight of the work equ ipment may cause the upper ucture to sw ing if the swing control l ever is operated in the d ownhill direction. This s witch (4) i s used to lock the upp er structure so that it c annot swing . (a) ON position (actuated): The swing lock is always applie d, and the upper if the sw condition, up. (b) OFF position (canceled): The swi structure will not swing even ing is operated.

In this the swing lock lamp lights ng lock is released, when the swing control lever, n this when operating allowing t the swing control lever, he upper structure to swing.