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5.1.3
Hydraulics
Folding/Unfolding
Always ensure a safe working environment as described within this manual when
folding/unfolding wings. Perform movements slow and safely paying special
attention to weight distribution, equality of descent, machine balance & stability,
environmental influences and neighbouring features/obstacles.
Drawbars should always be fully raised before the folding in of wings to ensure
adequate clearance from the ground to packer and other working instruments.
For more info, see machine manual & parts books for transportation positions.
Manual Change-Over Valves (MCOV)
Sumo use MCOV’s to isolate different hydraulic
systems from one another. Depending on the
system required, simply pivot the lever to the
desire direction. Always operate hydraulic
systems slowly to ensure the correct system
has been selected.
Accumulators
Sumo hydraulic systems use high pressure accumulators, which can present a
danger if tampered with or misused. This includes drilling, welding or any other
process that could compromise the safety of the accumulator. It is expressly
forbidden for an operator, or any third party to dismantle or adjust the
accumulator in any way. Doing so will invalidate any existing warranty. If the
accumulator fails it should be changed under the supervision/instruction of Sumo
UK.
5.2
Adjustments
Always ensure you wear the correct PPE as described previously, before attempting to
make any of the following adjustments, and watch out for any finger traps/potential
crushing.
5.2.1
Packer Depth
The machine will operate at its optimum and create maximum lift and cultivation
effect when the machine is set up so the wing frame/s runs parallel to the ground.
This is achieved by setting the machine working depth via the pin adjustment on
the packer. To do this the machine must be lifted completely clear of the ground
using the drawbar. The packer will then be sat up against the shallowest depth
pin and the desired depth setting can be set. For dual pin packers, lower packer
onto the deepest pin, then reposition the upper pin just above pack to lock it in
position.
