Wheel System, Traction 221
Service Manual – SC8000
Hydroback Replacement
1. Empty and remove the recovery tank.
2. Loosen the jam nut
holding the
Push/
Pull Control Cable
and
Hydroback Centering
Unit
in the
Hydroback
Adjuster Plate
by the
Piston Pump
.
3. Disconnect the
Rod
End
from the
Piston
Pump Lever Weldment
.
4. Loosen the locknut
and remove the
Rod
End
and locknut from
the
Push/Pull Control
Cable
.
5. Remove (unscrew)
the old
Hydroback
Centering Unit
from the
Push/Pull Control Cable
.
6. Install the new
Hydroback Centering Unit
unit onto the
Push/Pull Control Cable
. Note that the smaller end
of the
Cable
will thread through the rear of the
Hydroback Centering Unit
and the larger threads on the
outside of the
Cable
will thread directly into the front of the
Hydroback Centering Unit
.
7. Reinstall the locknut and
Rod End
onto the
Push/Pull Control Cable
.
8. Reinstall the
Rod End
into the
Piston Pump Lever Weldment
.
9. Position the
Push/Pull Control Cable
and attached
Hydroback Centering Unit
into the
Hydroback Adjuster
Plate
by the
Piston Pump
. Make sure the star washer is located on the rear side of the
Hydroback Adjuster
Plate
and contacts the front of the
Hydroback Centering Unit
, then tighten the jam nut.
10. After installing a new
Hydroback Centering Unit
unit, set the foot pedal/Hydroback neutral position
according to the instructions in the
Foot Pedal/ Hydroback Neutral Adjustment
section.
Hydroback
Centering
Unit
Push/Pull
Control
Cable
Piston Pump
Lever
Weldment
Piston
Pump
Rod End
Hydroback
Adjuster
Plate
