ME12002
HYDRAULIC SYSTEM
Operating an Additional Option While Driving (side valve block)
Figure 3-156 Operation of Additional Option While Driving (side valve block) Option control valve spool operates when controlling additional functions, and straight driving is maintained when pilot pressure from option control valve flows into port (35) of logic valve [e1]. Option control valve pilot pressure flows into port (35) of logic valve [e1]. Piston (301) then presses down while spring (621) and spring (622) force main relief valve (601) onto its seat within casing travel (101) (not shown), and path (34) shuts-off. Pilot path (18) and pilot path (19) pressurize for operating the straight travel control valve. See Figure 3-156.
Printed in U.S.A
145
909768/BP1207
