Condec UPC5210 - Manual (Page 26)

Maintenance & Service 23
Reassembly of Check Valves:
NOTES:
• Clean all parts with solvent and use shop air hose to remove any dust particles from all mechanical parts, except
screws and washers. Wipe the bores of the intensifier housing with a clean cloth before installing the piston. Replace
all damaged parts with new ones.
• For ease of assembly and to prevent damage to parts it is recommended to use the following tools during assembly:
• check valve seat tool (PN 70711)
• fitting holder tool (PN 70710)
• tapered packing retainer tool (PN 70712),
• check valve fitting tool (PN 70709)
For the outlet valve:
1. Assemble spring (9) and check valve (10) into spring housing (8).
1.1. Press check valve seat (11) into spring housing (8), using large diameter end of check valve seat tool
(PN 70711). Be sure check valve seat (11) is seated. Coat grease in bottom groove marks, in hole of
end cap (19) where fitting item (16) goes.
NOTE: The larger of the 2 seats belongs to the outlet check valve. Very important not to get grease in
counter-sunk hole located at center of groove marks.
1.2. Place grease on bottom of items (11/8) sub-assembly.
NOTE: Very important not to get grease on item 10.
1.3. Slide (11/8) sub-assembly into end cap (19), until properly seated on bottom. Thread high pressure
tube fitting (16) into end cap (19) and tighten using a 5/8” wrench.
2. For the inlet valve, perform the following steps:
2.1. Thread AN side of inlet check valve fitting (12) into fitting holder tool (PN 70710).
2.2. Place a small amount of grease (PN 55593) on inlet check valve fitting (12) between groove area and
top of fitting to enable ease of installation of packing retainer (13).
2.3. Place tapered Packing Retainer Tool (PN 70712), stepped part, into hole in packing retainer (13).
Place Grease on sides of tool.
2.4. Slide packing retainer (13) onto packing retainer tool (PN 70712) and down into groove of inlet
check valve fitting (12).
2.5. Remove packing retainer tool (PN 70712) and wipe the grease from tool.
2.6. Grease both sides of O-ring (14) and install into groove on inlet check valve fitting (12).
2.7. Use stepped part of packing retainer tool (PN 70712) on check valve seat (15) to install into recessed
end of inlet check valve fitting (12). Check valve seat (15) must seat flat. If needed, tap tool very
lightly to seat, but make sure no damage occurs to inlet check valve fitting (12).
2.8. Tap round dowel (25) into hole on threaded shaft of piston ring retainer (24). Leave extra material
protruding from both sides of shaft. Trim round dowel (25), using cutters, to top of threads on both
sides. Thread piston ring retainer (24) into piston (18), two or three turns, to form threads on round
dowel (25). Remove piston ring retainer (24) from piston (18).
2.9. Grease inside wall of end cap (19) where inlet check valve fitting (12), sub-assembly, O-ring &
backup ring will touch.
2.10. Place spring (9) and check valve (10) into end cap (19).
2.11. Thread “AN” side of inlet check valve fitting (12), sub-assembly into Fitting Holder Tool (PN
70710). Now place sub-assembly into Check Valve Fitting Tool (PN 70709), such that, flat side of
item (15) goes through beveled side of tool.
2.12. Slide item (12) back and forth in tool a few time to align O-ring and backup ring. Remove
sub-assembly from check valve fitting tool (PN 70709) and unthread from fitting holder tool (PN
70710). Thread item (12) sub-assembly into end cap (19), where spring (9) and check valve (10)
were previously installed. Tighten using a 5/8” wrench.