2008 15 600OPTRS
D. CONTROL VALVE SERVICE
Should the switch fail to activate the component, manual override buttons are provided
on top and bottom of each valve segment. Use the following procedure to engage the
manual override buttons:
1. Locate valve segment not functioning.
2. Set auxiliary engine RPM at idle.
3. Use a screwdriver or similar device to push manual override button into valve
(considerable force must be exerted to overcome springs inside valve).
NOTE
: In order to manually override dump door or pick-up head, by-pass valve
override button must be depressed at the same time.
4. If component goes in wrong direction or does not activate, push opposite override
button.
NOTE
: Gutter brooms can only be raised when manually shifting valve. In trying
to lower gutter broom manually, bristles will rotate but broom will not lower
due to the electric lock valve located on the cylinder.
If a valve segment solenoid coil shorts out, it will cause the hydraulic system fuse to
blow. The fuse is located at the control console assembly inside the cab (see Page 4)
and is a ATO fuse rated at 15 amps.
To replace solenoid coil, refer to Parts & Service Manual.
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