-8-
142664 - 5900 Series (24-November-2020)
Maintenance
5
HYDRAULIC CYLINDER REPAIR
c) Use a screwdriver or a fi nger to hold one end
of the ring in the groove while fi tting the other
end of the ring into the groove. The tips should
snap in together. Ensure it is secure and fully
seated before the next step.
IMPORTANT
: It is important to e
nsure the
removal ring is completely in the groove
before pulling the rod out. If the ring sticks out
it will get stuck between the head and tube.
Note
:
Excessive force will not overcome a
jammed ring and could damage the cylinder.
b) Completely remove rod and head from tube.
6. a) Extend the rod to pull head out of tube. If the
rod does not pull out easily, push the head back
in and ensure the ring is properly in the groove.
Replace ring if necessary.
7
7. Remove plastic removal ring from the cylinder
tube.
6
Plastic Ring
Inner Wire Ring
5. Take the plastic removal ring from the seal kit:
a) Straighten the ring and remove any kinks or
excessive curl to make installation easier and
prevent it from falling out.
b) Insert the removal ring into the internal
groove with the feathered
end pointing into the tube.
1. Retract the rod assembly.
2. Remove the external steel wire ring.
REPAIRING A WIRE RING CYLINDER
3. Remove any dirt that may have accumulated on
the cylinder head.
4. Using the mallet and punch, push the head
into the cylinder tube until the
internal tube groove
is fully exposed.
This will also move the
internal wire ring into
its removal position.
4
2
External Ring
Inner Ring
Initial Ring Positions
4
Internal Groove
Inner Ring
Outer
Wire Ring
(
Removed)
v1.0
Set Screw
Locking Ring
Wire Ring
Threaded
Head
Threaded
Head
Types of Cylinders
(Wire Ring / Threaded Head)
PREPARATION
When cylinder repair
is required, clean off
unit, disconnect hoses
and plug ports before
removing cylinder.
When removed, open
the cylinder ports and
drain the cylinder's
hydraulic fl uid.
Examine the type of
cylinder. Make sure
you have the correct
tools for the job.
You may require the
following tools:
•
Proper
Seal Kit
•
Rubber Mallet
•
Screwdriver
•
Punch
•
Pliers
•
Emery cloth
•
Torque Wrench
