Diamond Products CC8000 - Manual (Page 6)

TROUBLESHOOTING
PITCH CONTROL MOVES VERY SLOW OR NOT AT ALL IN ONE
DIRECTION.
The fittings at the rotary actuator controlling the pitch have very small orifices
in them to slow the pitch response. A tiny piece of contamination can partly
block one of these orifices and act similar to a check valve. Remove and clean
these two fittings. A standard fitting without an orifice would work, but the
pitch motion would be much faster.
PITCH CONTROL MOVES VERY SLOWLY IN BOTH DIRECTIONS.
1) Be certain that the pitch brake is released.
2) The brake caliper could be dragging and need adjustment. Loosen the
setscrew holding the caliper piston in position. Back out the piston a half
turn and tighten the setscrew. Swap the pressure line and bleeder port so
the bleeder port remains at the top position.
MOTION STALLS AT MECHANICAL STOPS (MAXIMUM
LEFT/RIGHT OR UP/DOWN).
Running the unit to any of the mechanical stops will not cause any harm.
However, the screw drives may occasionally lock up at the stops. When a
carriage moves to a stop, the torque is then applied to the screw drive/nut. This
is similar to any nut/bolt that then requires more torque too loosen the joint. To
loosen, a wrench can be used on the screw drives or couplings to jog the drive
free.
Viewed from the hydraulic motors.
Horizontal carriage extended to curb side, turn shaft counter clockwise.
Horizontal carriage extended to street side, turn threaded shaft clockwise.
Vertical carriage at max up, turn threaded shaft counter clockwise.
Vertical carriage at max down, turn threaded shaft clockwise.
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