. MAINTENANCE MAINTENANCE PROCEDURE MAINTENANCE MAINTENANCE PROCEDURE in the 4 - 44 Loosen oil f iller ca p (F) at the CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (contr NOTICE If the nitrogen ga s charge pressure i n the accumulator is low an d operations are continued, it will become impossible to release the r emaining pressure i nside the h ydraul ic circuit if a fa ilure o ccurs o n the Check the n itrogen ga s charge pressure a s f ollow s. 1. 1. Se t t he wo rk equi pment maximum diagram on the rig 2. Stop the engine a nd carry o ut the LOWE R operation for th 3.
Check t hat the tip of the bucket d rops at l east 1 m (3 If the tip of t he buc ket drops less than 1 m (3 ft ), the charg e pressure inside the accumulator i s low, so contact your Komatsu dist ributor .