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Фрагмент инструкции
The above is based on SGPPL ASTI's experience. SGPPL ASTI cannot be held responsible for premature failures if the pump is misused or damaged due to an incorrect application. VI – Dismantling and Repair Attention: Part numbers quoted in this manual are those used on a “standard” PFD/PFS pump. Before ordering, please check the spare parts list, the section view of the pump and the part numbers table (see encl. documents). INDEX DATE N° 03 27/09/01 DC01020US PFD1/PFS1 – OPERATING INSTRUCTIONS VI.1 – How to dismantle Before dismantling the pump, refer to the Maintenance schedule V.1, and proceed as follows: · Disconnect the air/nitrogen supply, · Remove the inlet and outlet connections (beware of any chemical droplets remaining on the inside), · Rinse the outside of the pump in DI water to remove all trace of chemicals, · Remove pump support screws. VI.2 – Examination To comply with your local Health and Safety Regulations it is essential the pump and all parts are thoroughly cleaned both on the inside and outside. See V.2 for the Preventive Maintenance Schedule. To repair the pump, refer to schedules V.1 and V.2.1. VI.3 – Stripping and assembling the pump The SGPPL ASTI design ensures that the pumps are easy to strip and assemble. The only tools required are a screwdriver to replace the shuttle valve (see VI.3.1) and a strap wrench to remove body rings (P/N 2706, Mark L). All other items can be removed and replaced by hand. A tools kit for the whole maintenance is available (P/N KPFD1), as well as maintenance kits (P/N AIR PFD1, LIQ PFD1, and MEC PFD1), and a preventive maintenance box (P/N PM PFD1 or PM PFS1). For more details on these kits, please report to appendix documents. Please refer to drawing “APP 1 REF” to visualize marks and part numbers quoted hereafter. VI.3.1 – Replacing the shuttle valve The valve is easily removed from the outside: 1) Unscrew the 2 fastening screws – take care not to damage them, 2) Replace with a new factory assembled shuttle valve (P/N 2701, Mark A), 3) Carefully tighten the 2 fastening screws. Do not overtighten, 4) Test with compressed air/nitrogen. Re-tighten if necessary. VI.3.2 – Replacing the bellows To replace the bellows proceed as follows: 1) Remove shuttle valve (P/N 2701, Mark A) (see VI.3.1), 2) Unscrew exhaust silencers (P/N 7185), 3) Unscrew the 4 manifold nuts and remove the 4 balls valves (P/N 2712) – take care not to lose them, 4) Remove the 4 manifold O.rings (P/N 2745, Mark G), 5) Position the pump into a bench vice (tighten only over the core P/N 2708), 6) Unscrew the body ring (P/N 2706, Mark L) with a strap wrench while holding the PFA body, 7) Remove the pump body (P/N 7145, Mark K), 8) Now unscrew the bellows (P/N 2613 or 2613S, Mark F) from the central shaft (P/N 2615, Mark D), 9) Replace with new bellows – moderately hand tighten, 10) To re-assemble follow the above but in reverse order from 8) to 1). All TEFLON® PTFE and PFA parts are soft; please handle with care to avoid damage. Do not put them down on their sealing surfaces. To re-assemble the PFA bodies, hand tighten the body rings (P/N 2706, Mark L), and block them up by giving 1/8 further turn with the strap wrench. Check that bodies are well positioned so that manifolds are tight. INDEX DATE N° 03 27/09/01 DC01020US Inner side Outer side Inner side Outer side Long Inner side PFD1/PFS1 – OPERATING INSTRUCTIONS VI.3.3 – Replacing the central shaft and shaft composite rings Follow the same steps described in V1.3.2 until 8) then: 9) Remove the central shaft (P/N 2615, Mark D), 10) Remove the plastic caps (P/N 1028), 11) Remove the C-PEEK plate screws (P/N 2729) and the rings (P/N 1720), 12) Remove the 4 shaft composite rings (P/N 7135F) from plates (P/N 2709 and 2728, Marks B and C), 13) Clean the plates and the core (P/N 2708) by removing the dust from previous wear by O.rings, 14) Insert 4 new composite rings with tools from our tool kit (P/N KPFD1) as follows: • Each of the 4 shaft rings (P/N 7135F) is composed of two parts: one O.ring and one sleeve (Figure 1): O.ring Sleeve 7135F • O.rings can be installed with the O.ring positioning tool P/N 1641. To install the ring on the inner side of the plate (Figure 2), insert the longer side of the tool in the plates (P/N 2709 and 2728, Marks B and C), as shown in the drawing. Then place the ring against the O.ring positioning tool (P/N 1641) and insert it in the groove. To install the ring on the outer side (Figure 3), insert the shorter side of the O.ring positioning tool through the inner side of the plate, and place the ring against the positioning tool. Then insert the ring in its groove. Long 1641 Short 8/11 Figure 1 Short Outer side Figure 3 Figure 2 INDEX DATE N° 03 27/09/01 DC01020US PFD1/PFS1 – OPERATING INSTRUCTIONS · Squeeze the sleeve into a “bean” shape, then insert it in the sleeve insertion tool P/N 2680 (Figure 4): Step 3 Step 2 Figure 4 2680 Step 1 • While holding the O.ring positioning tool (P/N 1641) against the plate, place th...
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