2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 53Get this manual
TECHNICAL FEATURES HYDRAULIC VALVE FUNCTION AIT Clutch Pressure Control Solenoid Valve (Linear Solenoid Valve) The NT Clutch PC solenoid valve controls the vehicle creep by diverting the hydraulic pressure that flows to the entire clutch system to the linear valve Shift Solenoid Valves (A and 81 The shift solenoid valves control the shift timing by supplying and shutting off hydraulic pressure to activate the shift valves
Shift Valves {1-2 and 23} The shift valves switch the hydraulic cireuits to the three clutches Orifice Control Valve 12ndand 3rd) The orifice control valves operate when clutch fluid pressure rises during shiftingIt releases the pressure to reduce shift shock Emergency Valve The emergency valve is used when the hydraulic pressure is shut off by faulty clutch PC solenoid valve (stuck; mechanical lock), and the vehicle is hindered from running, Open the bypass oil circuit manually to supply hydraulic fluid(In this case, the transmission IS held in 2nd range and the vehicle creeps during idling