AMT MSV1 Series, Спецификация, информация и руководство по ремонту запасных частей

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Specifications Information and Repair Parts Manual
MSV1, MSV3 and MSV5 Series
5910-251-00 4 10/2016
IMPORTANT: Stainless steel components deform easily, be careful to avoid
damaging pump components during disassembly.
6.
Unscrew Hex Nut (Ref. No. 37) from pump Shaft in a counter-clockwise
direction and remove along with Sleeve Cup (Ref. No. 35).
7. Lift Volute (if still present) and Impeller (Ref. No. 26) from stack and set
aside.
IMPORTANT: Take note of sequence parts are arranged in and direction they
are facing, number and mark if necessary (see Figure 6 & 7).
8.
Lift next Volute/Crossover (Ref. No. 34), Inner Bearing (Ref. No. 32), and
Impeller from stack.
NOTE: Inspect Inner and Outer Bearings for wear. If grooves can be seen or
felt, replace both bearings as a set.
9. Use a large straight blade screwdriver to carefully pry Cap (Ref. No. 28)
from Crossover to free Wear Ring (Ref. No. 29).
NOTE: Inspect for wear by placing Wear Ring over nose of Impeller and noting
clearance between two diameters. If fit is not snug, replace Wear Ring.
10. Repeat Steps 7 and& 8 for each stage (some stages have no bearings)
NOTE: Inspect Shaft (Ref. No. 21) for grooves, replace if splines are worn.
11. Lift Cylinder (Ref. No. 20) from Casing (Ref. No. 39), use a soft mallet to
break loose if necessary.
NOTE: Inspect o-ring groove in Casing after o-ring is removed. Rust/pitting
in this region may cause leaks, be sure to clean or replace Casing entirely if
damage is excessive.
12. If stage-1 Volute (Ref. No. 38) remains in Casing, now is the time to
remove it. Gently pry loose with a straight blade screwdriver, being careful
to avoid bending it.
13. Unscrew 2 fasteners (Ref. No. 42).
14. Use a straight blade screwdriver to pry pipe Flange (Ref. No. 41) loose.
15.
Use a putty knife to scrape off old Gasket (Ref. No. 40) from Flange and
Casing.
REASSEMBLY
1. Always use new Gaskets (Ref. No. 40) when reassembling. Attach pipe
Flanges (Ref. No. 41) with Fasteners (Ref. No. 42). Tighten evenly and
torque to 33 ft-lbs [45 N-m].
2. Place new O-ring (Ref. No. 19) into cleaned groove of Casing (Ref. No.
39), be sure to lubricate with soapy water or suitable material.
3. Place stage-1 Volute (Ref. No. 38) back into Casing (Ref. No. 39) making
sure it is seated properly.
4. Carefully guide Cylinder (Ref. No. 20) back into Casing and press down.
IMPORTANT: If Cylinder does not fully seat, O-ring may be pinched. If this
occurs, lift Cylinder back out and try stretching O-ring. Be sure components are
adequately lubricated and have not been damaged. Repeat process until end
of Cylinder bottoms on Casing.
5. Reassemble Impellers (Ref. No 26), Crossovers (Ref. No. 34), etc. onto
pump Shaft (Ref. No. 21) in same order they were removed (see Figure 6
& 7) and torque Hex Nut w/Nyloc (Ref. No. 37) to 13 ft-lbs [18 N-m]
IMPORTANT: NEVER reuse Hex Nut w/Nyloc, ALWAYS replace with new
unused one.
6. Take Impeller/Crossover stack by Shaft and lower into pump until properly
seated.
7. Place new O-ring (Ref. No. 19) into cleaned groove of Adapter (Ref. No.
8), be sure to lubricate with soapy water or suitable material.
8. Install wave Spring (Ref. No. 18) with ends pointed towards Adapter. With
wave Spring seated on proper landing in Adapter, carefully guide Adapter
onto pump and press down.
IMPORTANT: If Adapter does not fully seat, O-ring may be pinched. If this
occurs, lift Cylinder back out and try stretching O-ring. Be sure components
are adequately lubricated and have not been damaged. Repeat process until
Adapter bottoms on end of Cylinder.
9. Reinstall Fasteners (Ref. Nos. 15 & 16) onto Staybolts (Ref. No. 17) and
tighten diagonally.
10. Proceed to Reassembly portion of Shaft Seal Replacement.
Multistage Centrifugal Pumps