34 · GLOBE RM410 PISTON AIR MOTOR MANUAL| INCLUDING AUXILIARIES | ATEX Certified
A: Disassembly Control Valve
Preparation for disassembly
Remove the valve from its operating position to a clean working surface ready for stripping,
externally. Clean the valve ready for opening.
Servicing Control Valve
Disassembly HCV
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Dismount Lever Cap 7 by unscrewing bolts 6
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Dismount End Cap Spring End 13 by unscrewing bolts 6
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Pull out carefully spool 2 (remember or mark so that spool is mounted back in the sleeve in from
the same side) You should not “mirror” the spool in the sleeve when reassembled.
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Do not damage in any way the surface of the spool 2B
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Push out sleeve 2
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Inspect the O-rings 8 and replace if necessary.
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Apply grease on the O-rings 8 and sleeve 2 and the internal surface in the valve body 9
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Clean the sleeve 2
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Gently push the sleeve 2 in the valve body 9. Make sure that the O-rings are not sheared of
during assembly.
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Make sure that the spool and valve are clean. Oil the surface of the spool 2. Replace with
hand carefully spool 2 into the sleeve. When replacing hardly no force should be used. If the
spool does not go in lightly then take out the spool and try again.
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Replace End Cap 13
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Add grease on Toggle pin 17 and replace Lever Cap 7
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Test whether the O-rings 8 are not damaged during assembly by applying 1 bar air pressure
on the inlet. Listen if there is air leaking from the bottom of the valve. If there is clearly a hissing
sound it means that one or more of the O-rings are damaged during re-assembly. Start proce-
dure again.
Note!
The spool and sleeve are during fabrication matched to each other. It is not possible to
replace only the spool or sleeve. They always have to be replaced as a set.
