47
SR460 machines feature a 2 plate slip clutch on each of the rotor gearboxes with an overrun on the input shaft.
SR620 and SR820 machines feature a combination of 2 and 4 plate slip clutches on each of the rotor gearboxes
with an overrun on the input shaft.
NOTE: Some tractors offer the ability to change the PTO operating speed between 540/1000 RPM. Ensure that
the correct PTO operating speed is selected for the machine. Refer to the tractor owner’s manual for
instructions on how to change PTO operating speed before proceeding to start the machine.
4.6 Unfolding & Folding the Machine
Unfolding
The machine when received from McConnel is virtually complete and
components are set correctly, requiring minimum time to ready the
machine for use.
WARNING! When operating a fully assembled machine, do
not release the wing locking pin and/or ratchet securing strap
until the hoses are attached to the tractor and each of the
wing lift ram cylinders are filled with oil. Always ensure that
bystanders are kept well away from the falling area of the
wings.
Figure 4.15 – Bystanders Under Wing
To lower the wings of the machine, connect the hydraulic hoses of the machine to the tractor; see Section 4.3.
Once the hoses have been connected and seated properly, enter the tractor cab and use the tractors hydraulic
control levers/buttons to completely fill the wing lift ram cylinders with oil. Leave the tractor once they are
correctly filled.
Ensuring yourself and any bystanders/operator are kept well away from the falling area of the wing, proceed to
the following:
4.6.1.1 On SR460 machines remove the 2 wing locking pins; see Figure 4.16.
On SR620 machines remove the 2 wing locking pins and ratchet securing strap; see Figures 4.16 and 4.17.
On SR820 machines remove the ratchet securing strap; see Figure 4.17.
Figure 4.16
Figure 4.17
620/820 Wing Retention Strap
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