Name: Edwards nEXT 730D
Brand: Edwards
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Figure 21 Insert the gauge - Measure the axial play

BC-0052-A

1. Put the pump in the upright posion.

2. Screw the gauge holder into the spider.

3. Fit the 50 mm extension to the dial gauge, engage it to the holder and fasten it.

Rese

t the display to 0.000.

4. Make a control measurement by pressing the rotor into the pump and take the

value. This is the axial play at the beginning, which must be adjusted in this

posion

- to 0.04 to 0.06 mm for the nEXT730/930D or

- to 0.035 to 0.055 mm for thenEXT1230H.

5. When you release the rotor it must come back (if not, pull the rotor back to the

original posion). Adjust the axial play as follows.

Page 23300872820_002_C2

B8J203880_C

300872820_002_C2 - Assembly

Table of Contents3
Safety and Compliance5
Definition of Warnings and Cautions5
Trained Personnel5
Safety Symbols6
Important Safety Information7
Description8
Supplied Equipment8
Figure 1 Special Tools8
Additional Tools and Items Required9
Figure 2 Additional Tools9
Preload Check10
Figure 3 Check the Bearing Preload10
Mounting Orientation12
Figure 4 Preload Tool12
Figure 5 Mounting Orientation for Next1230H13
Figure 6 Mounting Orientation for Next1230H INV13
Disassembly14
Figure 7 Overview- Bearing in the Next Pump14
Figure 8 Disassembly 1 (Bearing Lid)15
Figure 9: Disassembly 2 (Axial Limiter) as Figure 615
Figure 10 Remove the Axial Disc16
Figure 11 Block the Rotor16
Figure 12 Remove the Counter Nut17
Figure 13 Remove the M8X1 Nut17
Figure 14 Extract the Bearing18
Assembly19
Figure 15: Grease the Axial Disc19
Figure 16 Press in the Bearing20
Figure 17 Screw in the M8X1 Nut and the Counter Nut21
Figure 18 Press the Rotor into Its Position21
Figure 19 Assemble the Axial Disc22
Figure 20 Screw in the Axial Limiter22
Figure 21 Insert the Gauge - Measure the Axial Play23
Figure 22 Adjust the Axial Play24
Figure 23 Insert the Bearing Lid24
Bearing Preload Check25
Figure 24 Check the Bearing Preload25
Clearance Check26
Bearing Monitoring and Conditioning System26
Figure 25 Preload Tool (Pass/Fail Indication)26
Bearing Run in Mode27
Service Counter Reset28
Reset the Service Interval Using a Turbo Instrument Controller (TIC)28
Reset the Service Interval Using a PC Serial Command28
Reset the Service Interval Using a Nst PC Program29
Reset the Service Interval Using the Turbo Drive Standby Speed Control Buttons29
Figure 26 Use the Reset Tool29
Figure 27 Controller View30

Brand	Edwards
Model	nEXT 730D
Category	Water Pump
Language	English

Edwards nEXT 730D User Manual

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Edwards nEXT 730D Specifications

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