Ega Master 56586 Serie Mode D'emploi page 37

GENERAL INSTRUCTIONS
1. Do not disassemble the tool any further than necessary to replace or repair damaged parts.
2. Use extra care not to score, nick or damage surfaces that will contain hydraulic oil under
pressure.
3. Whenever grasping a tool in a vise, always use leather–covered or copper–covered vise
jaws to protect the surface of the part and help prevent distortion. This is particularly true of
threaded members and housings.
4. Do not remove any part that is press fit in or on an assembly unless the removal of that part is
necessary for repairs or replacement.
5. Do not disassemble the hydraulic cylinder assembly unless you have a complete set of seals
and o–rings for replacement.
6. Use only British Standard fractional size tools when disassembling these tools.
DISASSEMBLY OF THE TOOL
1. Push the link pin (12) out of the housing (1) and side plates (1 & 2).
2. Lift the housing from between the side plates and separate the two units.
Disassembly of the 56573, 56587, and 56588 Cylinder Assemblies
1. Grasp the housing (1) in copper-covered or leather-covered vise jaws with the inlet end
upward and using a 1/4"hex wrench, unscrew and remove the two swivel Inlets (20) with their
attached couplers (21).
2. Remove the housing assembly from the vise jaws and over a container to catch the oil, move
the piston rod (3) back and forth several times to purge the hydraulic oil from the housing.
3. Grasp the housing in copper-covered or leather-covered vise jaws with the inlet end upward.
4. For 56573 use a 1/8" allen wrench. For 56587 and 56588 models, use a 5/32" allen wrench
unscrew and remove the end cover screw (14). Remove the end cover (13).
5. Push the end cap (10) inward approximately ½" and remove the two retaining rings (11) by
working them out of the groove in the cylinder.
6. Install the seal insertion tool (22) on the inlet end of the housing.
7. Thread one of the swivel inlets or a threaded pipe with a tee into the end cap (10). Use the
inlet or tee as a handle to pull the end cap and end plug seal (17) out of the housing through
the seal insertion tool.
CAUTION
The purpose of the Seal Insertion Tool in the following step is to prevent the End Plug Seal
from expanding into the Retaining Ring groove. If the Tool is not used, place 2 thin pieces of flat
stock at the midpoint of the opening against opposite walls to control the Seal expansion.
8. Invert tool above vice, spreading vice open enough to catch the end plug and piston. Placing
a cloth draped between the jaws of the vice will contain the parts exiting.
9. Tap piston with a brass tap lightly until both the piston and end cap slip through the housing
into the catch cloth.
10. If the rod seal or end plug seal need replacement, use a hooked tool or small screwdriver to
pull it from the piston rod or end cap respectively.
DISASSEMBLY
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