Honda TRX680FA Service Manual page 330

DRIVETRAIN SYSTEM
If the valve body
will be
disassembled,
loosen the six
solenoid valve bolts
and four sealing
bolts (large head;
gold). Place a shop
towel under the
valve body.
six bolts (small head)
shift valve body assembly
- gasket
- four oil joint collars
- O-rings
The emergency
valve is built in the
A/T clutch pressure
control solenoid.
Use a hand-
operated air pump
only. Do not use a
high pressure air
short the positive
and negative
terminals.
JOINT COLL4RS/O-RINGS
DISASSEMBLY/INSPECTION
NOTE:
• Keep dust and dirt away from all the parts.
• Take care not to damage the mating surfaces of
the valve bodies.
SOLENOID AND EMERGENCY VALVES
Remove the following from the valve body cover:
- bolts
- shift solenoid valve A and B (by pulling out of the
body cover)
- screw and lock plate
- four bolts and A/T clutch pressure control sole-
noid assembly
- rubber seal (from the valve body)
A/T clutch pressure
control solenoid
SCREW AND
LOCK PLATE
Connect a pressure pump to the input port (filter
side) of the shift solenoid valve.
Connect a 12 V battery to the solenoid valve
terminals and check for air flow conditions (do not
use a thin wire because a large amount of current
flows).
- valve A: Yellow/black (+) - Green/white (-)
- valve B: Yellow/green (+) - Green (-)
Air should not flow (the pressure should main-
tained) while the battery is connected, and should
flow out of the output ports that goes to the shift
valve when the battery is disconnected.
1
J
1-
T OUTLET PORTS
INLET PORT
14-48