McConnel SR460 - Setting up the Machine

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4.6.1.2 Return to the tractor, ensuring the bystanders are still kept well away from the falling area of the wing
use the tractors hydraulic control levers/buttons to release the wings to the ground.
All SR460 and SR620 machines feature single-acting rams which
utilise the weight of complete wings in order to lower themselves
to the ground.
SR820 machines feature double-acting rams. This is due to the
wings in the folded position being past vertical; see Figure 4.18.
SR820 wings require tractors hydraulic control levers/buttons to
be continually pressed until the wing cylinders are over vertical.
Once the wings are past vertical, then they will drop under their
own weight in the same fashion as the SR460 and SR620.
4.6.1.3 Raise and lower both wings, repeating the process several times
to remove any potentially trapped air in the system. If the
hydraulic system comes across as being “spongy” this could
indicate air in the system. Continue to cycle the wings up and
down until the sponginess has disappeared.
Figure 4.18 – SR820 Wings
WARNING! If the machine wings fall down rapidly; have the cylinders and/or hoses checked, repaired,
or replaced before proceeding to use the machine again.
Folding
Folding the machine is carried out in a reverse fashion to the unfolding of the machine.
4.6.1.4 From the tractor seat, ensuring the bystanders are kept well away from the falling/raising area of the
wing use the tractors hydraulic control levers/buttons to lift the wings off the ground.
4.6.1.5 On SR460 machines fit the 2 wing locking pins; see Figure 4.16.
On SR620 machines fit the 2 wing locking pins and ratchet securing strap; see Figures 4.16 and 4.17.
On SR820 machines fit the ratchet securing strap; see Figure 4.17.
4.6.1.6 If the machine from now is not planned to be used, relieve hydraulic pressure before disconnecting the
hydraulic hoses
This can be done by pushing and pulling/pushing the selected tractor lever/button. Only once this has
been completed and then suitable safety glasses and impenetrable gloves have been put on can the
hydraulic hoses be removed from the tractor.
4.7 Setting Up the Machine
It is important to set the machine up properly front to back and with regards to its wings to ensure for safe
operation and efficient working ability. A properly set up machine will give a more uniform cut, follow ground
contours better and distribute its cut material more evenly out of the rear of the machine. It will also require
reduced tractor work and effort from the operator.
Setting up the machine should always be carried out with the wings of the machine folded down. See Section
4.6 for the correct way to safely unfold the machine.