Parker ORIGA 2000 Series, Assembly Instructions Manual

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without the piston seal, should be inserted into the barrel first. Slide
the piston all the way to one end of the barrel. The piston should
be positioned so that it sticks out past the end of the barrel.
3. Piston Seal: apply grease to the support ring (item #8) and to the
remaining piston seal (item #15). Attach the piston seal to the end
of the piston. Carefully pull the piston back into the barrel. Position
the piston toward the middle of the barrel.
4. Cushion Adjustments: assemble the cushion adjustments, in both
end caps (item #17 & 18). This procedure is necessary for all bore
sizes, except 25mm. Apply grease to the cushion screw o-ring
(item #28). Attach the cushion screw o-ring to the cushion
adjustment screw (item #23). The cushion screw assembly should
be screwed into the end cap. The locking ring is inserted last (item
#26). Repeat this process for both end caps.
5. End Cap O-ring: apply grease to the end cap o-ring (item #27).
Attach the end cap o-ring to the end cap. Repeat this process for
both end caps.
6. Cushion Disc: apply grease to the cushion disc (item #22). Attach
the cushion disc to the end cap. Repeat this process for both end
caps.
7. End Cap: apply a coating of grease to the end cap o-ring (item
#27), the cushion disc (item #22), and the cushion pipe (item
#19). Repeat this process for both end caps. Attach an end cap to
each end of the barrel. Insert the end cap screws (item #25). The
screws should be tightened in a diagonal pattern. Insert the port
plugs, into the ports that you won’t be using.
8. Insert the shim piece (item #21) between the inner band (item #3)
and the inner bandlock (item #20). Carefully position the inner
band. A screwdriver might be needed to help position the inner
band. Tension the inner band at one end, by pressing outward on
the rivet. Keep pressing, until the slack in the inner band is
removed. Tighten the inner bandlock screws (item #29). Check the
assembly, by moving the piston to each end of the barrel. There
should be no slack in the inner band.
Outer Band:
1. Outer Band: lay the outer band (item #4) across the top of the
barrel.
2. Piston Mounting: attach the scrapers (item #11), to the underside of
the piston mounting (item #10). A raised tab, on the top of the
scraper, fits in an indentation on the underside of the piston
mounting. Attach the piston mounting to the top of the piston yoke
(item #7). Tighten the piston mount screws (item #5).
3. Outer Bandlock: place the outer bandlock (item #24) over the outer
band (item #4). Tighten the outer bandlock screws (item #6).
Cleaning of Inner Band (use eye protection):
During the assembly process, dirt particles may become lodged
between the sealing band and the barrel. These particles can cause
leaks and must be removed.
1. Remove the mounting and the outer band.
2. Apply 30psi (2 Bar) air pressure.
3. Insert the cleaning tool into the slot and depress where it is leaking.
The expelled air will “blow out” any foreign particles, if present.
4. When complete, re-install the outer band and the mounting.
Note: If the band continues to leak, a full inspection is recommended.
Inspection:
1. Clean and inspect all parts.
- seals for wear
- bands for nicks and dents
- tube for wear, along the slot and damage to the bore
2. Replace worn parts.
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Defect Diagnosis
Defect Cause Correction
Audible leak in stopped position Leakage at inner band due to dirt Clean inner band with LRF cleaning tool
Leakage at inner band due to abrasion Replace inner band
Leakage at end cap Replace end cap O-ring
Leakage at piston Replace piston seals
Cylinder speed is inconsistent Insufficient lubrication Relubricate
Piston seals worn out Replace piston seals
Cylinder impacts in end position Overloaded Reduce overload or install hydraulic shocks
Incorrect setting of cushion screws Reset
Insufficient buildup of backpressure Install flow controls or readjust existing ones
Cushion seal defect Replace cushion seals