11. EXPLANATION OF COMPONENTS HYDRAULIC OIL FLOW When the front of the pedal is depressed, the oil flows to the left piping for the work equipment; when the rear of the pedal is depressed, the oil flows to the right piping for the work equipment. (When the breaker is installed, only the front of the pedal is used.) 6. BREAKER, GENERAL ATTACHMENT (CRUSHER, ETC.) SELECTOR VALVE (OPTION) When a breaker or general attachment (such as a crusher) are used, turn the rotor of the 3-way valve to switch selector valve a as shown in the table below.
(The arrow showing the direction of the port is stamped on the head of the 3-way valve.) NOTICE Perform work only after the engine is stopped and the work equipment and machine body are in a stable posture on the ground. REMARK For details, see 28, page 5-5 “MACHINES READY FOR ATTACH- MENTS” PC450-ENG 2-23 Attachment Right 3-way valve a Breaker etc. Right side of machine Crusher etc. Right side of machine When not use Right side of machine