96
Figure 5.59
blocks; see Figure 5.59.
5.6.2.5 Release all oil pressure from the circuit by
using the tractors hydraulic control
levers/buttons back/forth in/out e.t.c.
5.6.2.6 Remove the input PTO shaft between the
machine and tractor. Guidance to using the
PTO shaft is given in Section 4.5.1.
5.6.2.7 Put on suitable safety glasses and
impenetrable gloves and proceed to remove
the hydraulic hoses from the tractors quick
connect points following the guidance given in
Section 4.3.
SR460/620
SR820
5.6.2.8 Check to see that the hydraulic cylinder
destined to be removed is not under pressure.
There should be some slight movement in
the ram by moving the ram by hand; see
Figure 5.61. If no movement can be made;
the system may still be under pressure.
DANGER! Do not allow anyone or any part
of your body to be underneath the implement
wing.
SR460/620
SR820
5.6.2.9 If no pressure in the ram is ensured, slowly
loosen the hydraulic hose connections to the
ram cylinder.
CAUTION! Do not loosen the hydraulic
connections to the cylinder until all pressure
has been relieved from the system.
5.6.2.10 Ensuring that the hydraulic ram is movable
and that the machine is supported
substantially so it will not in reaction move,
remove the cylinder pear pins and from each
of end of the ram. The cylinder may be
heavy, use proper lifting techniques to lift
and handle the cylinder and if needed get
assistance in lifting from another person
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