Flowserve TB-MAG INNOMAG User Manual download pdf (Page 31)

INNOMAG® TB-MAG™ ASME and ISO SEALLESS ENGLISH 26999988 06-14

Page 31 of 44

j) Align the large SiC bushings [3300] separated

by the plastic spacer [3300.1] on the bushing

tool part # TLG-2010-SI (A/V/E Series) or TLG-

2009 (B/C/W/F/G Series).

k) Make sure the bushings are held securely by

the rubber o-rings on the bushing installation

tool.

l) Align the bushings [3300] with the molded key.

m) Press the bushings [3300] in until they are firmly

seated using an arbor press.

6.11.3 Back Rotating Wear Ring Installation

a) Place the back rotating wear ring [3041.1] on the

impeller [2200] and align the notches.

b) Place the PVC trimming sleeve over the wear

ring [3041.1].

c) Place an aluminum spacer block over the

trimming sleeve and press the wear ring into

place with the arbor press.

d) Insert the retaining pin into the slot on the

impeller [2200].

e) Force the pin into place using needle nose

pliers.

f) Push the rest of the way with a screwdriver.

g) Once the pin is completely inserted, use a

soldering iron to melt (plastic weld) it in place.

6.11.4 Front Stationary Wear Ring Installation

a) Place the front rotating wear ring on the impeller

[2200] and align the notches.

b) Place the aluminum spacer over the wear ring

and press into place with the arbor press.

c) Insert the retaining pin into the slot on the

impeller [2200].

d) Force the pin into place using pliers.

e) Push the rest of the way with a screwdriver.

f) Place the PVC trimming sleeve over the wear

ring.

g) Place an aluminum spacer block over the

trimming sleeve and press the wear ring into

place with the arbor press.

h) Insert the retaining pin into the slot on the

impeller [2200].

i) Force the pin into place using needle nose

pliers, and then push the rest of the way with a

screwdriver.

j) Once the pin is completely inserted, use a

soldering iron to melt (plastic weld) it in place.

6.11.5 Impeller Trimming

a) Place the trimming sleeve over

the impeller [2200] to protect it from damage.

b) Measure the current diameter of the impeller

[2200].

c) Insert the impeller [2200] into the lathe and

tighten the jaws.

d) Set the trim 6 mm (1/4 in.) less than the current

diameter. If you have never trimmed an impeller

[2200] before, then we recommend only cutting

3 mm (1/8 in.) at a time.

e) Trim the first pass at a slow speed.

f) Use the hobby knife to clean off the loose

plastic on the impeller [2200] in order to get an

accurate measurement.

g) Check the diameter again with the caliper.

h) Set the lathe for 6 mm (1/4 in.) less than the

current diameter measurement.

i) Trim this layer at a slow speed.

j) Clean off any loose plastic that would interfere

with your diameter measurements.

k) Use the caliper to measure the current

diameter.

l) Repeat the proceeding four steps until you

reach the desired diameter.

m) Chamfer the right edge of the impeller [2200].

n) Chamfer the same amount off the left edge.

o) Loosen the jaws and remove the Impeller

[2200].

p) Remove the trimming sleeve and trim any

remaining loose plastic.

6.12 Wet End Assembly

Thoroughly clean all parts before assembly.

Make sure all parts are free of dirt, metallic particles,

etc.

With TB-MAG™ B/C/W/F/G Series

pumps, we highly recommend following the shop

assembly procedure (Section 6.11.2) to minimize

the chance of damaging the SiC. Due to the brittle

nature of SiC, all assemblies must be handled with

care to avoid chipping or cracking.

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Flowserve TB-MAG INNOMAG User Manual Page 31

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