SPX Johnson Pump CombiPrime V, Инструкция по эксплуатации

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42 Disassembly and assembly
CV/EN (1009) 5.3
7.8.2 Instructions for mounting a mechanical seal
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First read the following instructions regarding the mounting of a mechanical seal. Follow
these instructions closely when mounting a mechanical seal.
• A mechanical seal is a fragile precision instrument. Leave the seal in its original
packing until you are ready to fit it!
• Clean all receiving parts properly. Make sure your hands and working environment are
clean!
• Never touch the sliding surfaces with ones fingers!
• Take care not to damage the seal during assembly. Never put the rings down on their
sliding surfaces!
7.8.3 Assembly of the mechanical seals M2
1 Check the shaft sleeves (1900) and the splash ring (2220) for damages. Also, the
splash ring should clasp the shaft well. If necessary replace these parts.
2 Place the bearing bracket with the shaft upright.
3 Place the cover of the pump wheel casing (1510) and the pump cover (0110) flat
down and press the counter-rings of the shaft seals straight into the. If necessary use
a plastic pressure piece. Never knock them inside! The maximum axial turn of the
counter-ring is 0,1 mm.
4 Put some glycerine or silicon grease on the O-rings and mount the O-rings into the
shaft sleeves.
5 Push the cover of the pump wheel casing (1510) over the pump shaft.
6 Wet the clean shaft sleeve with some low-surface-tension water (add detergent),
feed the bellows with a slight twist in clockwise direction onto the shaft sleeve. Use
no oil or grease! Apply pressure only on the corner rings.
7 Push the shaft sleeve (1900) onto the pump shaft.
8 Bearing group 3 only: Fit a new gasket (1940).
9 Place the key (1890) in the pump shaft and push the pump wheel (1500) over the
pump shaft.
10 Mount the gasket (1361).
11 Mount the pump cover (0110) in the right position into the fitting edge of the bearing
bracket. Check whether the pump cover is at right angles to the pump shaft.
12 Mount the cover of the pump wheel casing (1510) against the pump cover. Watch its
position in view of the connections. Tighten the Allen screws (1880) crosswise.
The cover should not be oblique.
13 Push the other shaft sleeve (1900) on the pump shaft.
14 Bearing group 3 only: Fit a new gasket (1940).
15 Fit the impeller and other parts, see paragraph 7.7.2 "Mounting the impeller".