Section 2-2 - Care and Safety
General Procedures
Quick Release Couplings
2-2-9
2-2-9
9803/3750-05 (2-02-01)
Quick Release Couplings
T4-001_2
Connecting and Disconnecting
Flat face quick release couplings allow the operator to
remove and install attachments swiftly and efficiently.
Generally, your machine pipework will be fitted with a
female coupling
A
and a male coupling
B
. The optional
attachment hoses will also be fitted with a female coupling
A
and a male coupling
B
.
K
Fig 4. (
T
2-2-10)
.
The quick release couplings should be trouble free and
relatively easy to connect and disconnect, provided they
are kept clean and used correctly. The recommendations
listed below should always apply when using flat face
quick release couplings.
Finally, please read the correct fitting and releasing
procedures before installing or removing any optional
attachment fitted with quick release couplings.
Quick Release Couplings - Do's and Don'ts
– Do wipe the two faces of the coupling and make sure
they are clean before connecting.
– Do make sure the outside sleeve (female coupling) is
pulled back when disconnecting.
– Do connect and disconnect a new coupling two or
three times to 'work' the PTFE seals - sometimes a
new coupling will stick if the seals have not been
'worked'.
– Do use a spanner on the hexagon flats of the coupling
when fitting adaptors.
– Do use a rubber or hide hammer to disconnect a
coupling if it sticks - sticking may occur if there is dirt
present in the coupling.
– Don't attempt to re-connect a damaged half coupling
- this will destroy the seals and necessitate replacing
both half couplings.
– Don't leave the coupling where it may be run over by
a machine or otherwise crushed - this will distort the
coupling sleeve and prevent correct connection and
disconnection.
– Don't clamp on the smooth diameter of the coupling
when fitting adaptors - always use the hexagon.
– Don't try to turn the sleeve (female coupling) when the
coupling has been disconnected - the locking ball will
wedge underneath the sleeve and destroy the
coupling.
– Don't damage the faces of the couplings - this can
prevent connection and disconnection, or damage
seals and cause leakage.
– Don't try to dismantle the couplings - they are non
serviceable parts. If a coupling is damaged it should
be replaced with a new one.
!M
WARNING
Hydraulic fluid at pressure can injure you. Make the
machine safe before connecting or disconnecting
quick release couplings; stop the engine and then
operate the attachment control a few times to vent
residual hydraulic pressure in the attachment hoses.
2-4-1-11
!M
WARNING
The external surfaces of the couplings must be clean
before connecting or disconnecting. Ingress of dirt
will cause fluid leaks and difficulty in connecting or
disconnecting. You could be killed or seriously injured
by faulty Quick Release Couplings.
2-4-1-15
Before connecting or removing any hydraulic hose,
residual hydraulic pressure trapped in the service hose line
must be vented. Make sure the hose service line has been
vented before connecting or removing hoses.
Summary of Contents for 535-125 Hi Viz
Page 2: ...Section 0 Service Manual 0 0 0 0 9803 3750 05 Notes ProCarManuals com...
Page 4: ...Section 1 General Information 1 0 1 0 9803 3750 05 Notes ProCarManuals com...
Page 6: ...Page No Contents Section 1 General Information 1 ii 1 ii ProCarManuals com...
Page 84: ...Section 2 Care and Safety 2 0 2 0 9803 3750 05 Notes ProCarManuals com...
Page 121: ...Section 3 Routine Maintenance 3 0 3 0 9803 3750 05 Notes ProCarManuals com...
