Honda 2006 TRX680FA Service Manual page 55

TECHNICAL FEATURES
1st gear and Reverse gear
Gear position
AfT Clutch __ ~!,~olenoid
Shift Clutch
_ . _ . _ - ~
PC Solenoid A B
-
---;;-_ 181 __ --,-;;-
2n.
3,.
1stIReverse (idling)
ON-
--O-.r- -OFF
"Engaged"
-
1st/Reverse {riding) OFF ON OFF "Engaged"
• The hydraulic passage is connected to supply hydraulic oil to the tst shift clutch, and the clutch is engaged.
Oil is supplied by way of: AIT clutch PC solenoid valve
¢
1-2 Shift valve
¢
151 Shift clutch
(Oil
is drained by way of:
2nd Shift dutch c;> 2-3 Shift valve
q
1-2 Shift valve
3rd Shift clutch
~
2-3 Shift valve)
• At idling, the
AfT
clutch PC solenoid velve ls on (valve closed} to eliminate vehicle creep.
At start up, the AfT clutch PC solenoid valve controls the clutch hydraulic pressure to the linear valve according to the
signal from the PCM.
At riding, the
AfT
clutch PC solenoid valve is off (valve open) supplying sufficient hydraulic oil to the shift clutch.
• Control of the hydraulic passage during driving in Reverse gear is the same, However, the vehicle can be driven only in
the 1st-hold mode (no shift).
3rd SHIFT CLUTCH
1st SHIFT CLUTCH
2nd ORIFiCE
CONTROL
VALVE
1·2SHIFT
VALVE
AfT CLUTCH PC
SOLENOID VALVE
&;::;;t~~
oI----LEMERGENCy
VALVE
B
SHIFT
SOLENOID
VALVE
TORQUE CONVERTER
OIL PUMP
2-11