Section 1 - General Information
Torque Settings
`Positional Type' Hydraulic Adaptors
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1-05-01 Issue 02
`Positional Type' Hydraulic Adaptors
Fitting Procedure
On a typical machine, some hydraulic components may
utilise `Positional Type' SAE Hydraulic Adaptors. When
fitting `Positional Type' Hydraulic Adaptors it is important to
adopt the following procedure. If this procedure is not
followed correctly, damage to the `O' ring seal 7-A can
occur resulting in oil leaks.
1 Ensure the locknut 7-B is screwed back onto the body
of the adaptor as far as possible as shown.
2 Check the `O' ring backing washer 7-C is a tight fit on
the adaptor. Note that the washer should not move
freely, if the washer is slack do not use the adaptor.
3 Check the `O' ring 7-A is fitted and that it is free from
damage or nicks. Before fitting the adaptor, smear the
`O' ring with clean hydraulic fluid.
Note: The dimensions and shore hardness of the `O' ring
is critical. Should it become necessary to replace the `O'
ring, ensure that only JCB Genuine Parts are used.
4 Screw the adaptor into the port of the hydraulic
component as far as possible, so that ALL the threads
engage and the `O' ring is correctly seated against
the sealing face.
5 Set the angular position of the adaptor as required,
then secure by tightening the locknut 7-B.
Note: When fitted correctly no more than one thread
should be visible at 8-Z as shown.
6 Torque tighten the locknut to 81 Nm (60 lbf ft).
Fig 7.
Fig 8.
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