Parker OSP-P, Руководство по эксплуатации

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EN
13.5 Cylinder OSP-P Reassembly
(not Clean Room Cylinder)
Check the position of the parts on the exploded
view drawing chap. 17.1 resp. chap. 17.2 on page 35.
Danger of injuries
The sealing bands, especially the inner sealing band are very sharp-edged. Wear gloves!
Preparation:
• Clean and dry sealing bands and cylinder barrel.
• Watch out for damage, especially at the edges of the inner sealing band.
13.5.1 OSP-P Ø10
Prepare piston for installation
Check that piston moves smoothly, as follows:
• Insert piston into cylinder bore (1) and slide it up and down.
• Replace slide shoe and/or support ring (28) if:
- piston is too tight, or
- piston has too much play.
• Take piston out again.
Grease cylinder barrel:
• Grease inside of cylinder bore as far as you can reach (Parker Origa-grease)
see chap. „17.9 Lubrication“ on page 39.
• Grease the two support rings and piston behind support rings.
• Slide piston up and down a few times (long cylinders, however, should be greased right through).
• Take piston out again.
• Check that cylinder bore has a complete grease film, as follows:
- point cylinder at a light source and look through it,
make sure that there is a grease film on the entire surface – no dry spot must be left .
- Repeat greasing process if required.
Install piston
Information
Piston seals have a delicate sealing lip that must be „pulled“ into the cylinder barrel. For that reason the
installation must be carried through as follows:
• Slip on the first piston seal (24) in such a way that the lip and the groove of the piston seal face towards
the outside. The centring knob must lock into the recess of the support ring.
• Thoroughly grease the mounted piston seal and fill the groove of the piston seal with grease.
Risk of injury from contact with the sharp edge of the band!
Wear gloves:
• In order to be able to lead the inner sealing band (17) through the piston, bend up the band by approx.
30° on one side outside the band rivet (cut on the bottom side).
• Place inner sealing band (17) together with the piston seal on flat band guide of the
support rings, with the „ground-edge“ side on the support ring (see illustration on the
right side).
• Push inner sealing band with the bend-up end first about 2-3 cm into the piston.
• Insert the piston end without piston seal into the cylinder barrel as far as 1 cm from the
piston seal.
• Insert inner sealing band until the piston seal is placed between band rivet and end of
band.
• Insert the piston. When inserting the second support ring it is imperative to push down the piston shaft
in order to avoid damaging the inner sealing band .
• Push the piston shaft fully into the tube and continue pushing with the sealing band until the support
ring emerges on the other side.
• Put the second piston seal on the support ring with the groove on the outside.
• The centring knob must lock into the groove of the support ring.
• Grease the piston seal and fill its groove with grease.
• Slide the inner sealing band into the piston until the piston seal is in the middle between band rivet and
end of band.
• Slide inner sealing band until the band rivet is flush with the cylinder barrel at one end.
• Remove excess grease from the ends of the cylinder barrel.
Flat band guide