Table of Contents
Advertisement
Quick Links
EXPERT IN ENGINEERED
VACUUM SYSTEMS SINCE 1993
Performance.
Efficiency.
333 Rt 46 W
Building A,
Fairfield, NJ 07004
1-800-297-3550
www.nescompany.com
Operation & Maintenance Manual
for NX Series Vacuum Pumps
and Compressors
NX O & M Document No. NES/NX/O&M/00X Rev 0Y
Reliability.
N
E
S
C
O
M
P
A
N
Y
Page 1 of 25
Advertisement
Table of Contents
Troubleshooting
Related Manuals for NES NX Series
Summary of Contents for NES NX Series
- Page 1 VACUUM SYSTEMS SINCE 1993 Performance. Reliability. Efficiency. 333 Rt 46 W Building A, Fairfield, NJ 07004 1-800-297-3550 www.nescompany.com Operation & Maintenance Manual for NX Series Vacuum Pumps and Compressors NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 1 of 25...
-
Page 2: Table Of Contents
6.4 Remove Head and Cone Assembly.................17 6.5 Removing Lobe from End Plate..................17 6.6 Remove Rotor and Shaft Assembly................17 6.7 Removing Rotor from Shaft....................17 6.8 Removing Cone from Head....................17 NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 2 of 25... - Page 3 6.18 Assemble Drive End Bearing and Cap................21 6.19 Assemble Idle End Bearing Cap..................21 6.20 Setting End Travel.......................21 6.21 Installation of Packing into Head and End Plate............22 6.22 Complete Installation of Mechanical Seals..............22 NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 3 of 25...
- Page 4 Table 3 – Allowable Press Forces..................19 Table 4 – Standard Mechanical Seals..................20 Table 5 – Tie Rod Torque Values.....................21 Table 6 – End Travel Settings....................22 Table 7 – Packing Size....................………...23 NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 4 of 25...
-
Page 5: Safety Precautions
Replace and adequately dispose of vacuum pump oil that is contaminated with condensate. Used pump oil must be disposed of as hazardous waste per EH&S Procedures. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 5 of 25... -
Page 6: General Information
For this document, we used the word "Machine" for the vacuum pump and compressor. This manual contains information for the users of the NES machine model NX. This information includes a description of how to operate, service, and maintain this machine. -
Page 7: Figure 2 - Liquid Compressant And Air Flow
Figure 2. Liquid Compressant and Air flow NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 7 of 25... -
Page 8: Operation
NES installation drawing(s) orifice's meter downstream. This set parameter will that have been supplied with the pump. Contact NES establish the necessary flow rate. representative before proceeding. Make sure all Pump Size Seal Flow Rate –... -
Page 9: Machine Start-Up And Operation Checkpoints
● When the initial checks and pre-operational check THE ISSUE; HOWEVER, APPLY LOGICAL procedures have been completed, start the machine RELATIONS WITH ATMOSPHERIC operation checks . TEMPERATURE AT THE USER LOCATION. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 9 of 25... -
Page 10: Stopping The Operation
V-Belt tensioning procedures. NOTE IF THE ISSUE PERSISTS DESPITE THESE CHECKS, CONTACT YOUR REPRESENTATIVES BEFORE PROCEEDING WITH THE DISMANTLING OR DISASSEMBLY PUMP. WILL PROVIDE ASSISTANCE IDENTIFYING RESOLVING THE PROBLEM. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 10 of 25... -
Page 11: Troubleshooting Guide
Noisy Bearings Replace the bearings Faulty gaskets Replace gaskets Liquid leaks occur between the pump bodies Loose bolts Check the bolts are tightened to proper torque levels NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 11 of 25... -
Page 12: Preventive Maintenance
250*F ( -18* to 121*C) Long life performance d. Examine V-Belts (if utilized) for appropriate tension and Good mechanical and chemical stability. signs of wear. Replace them as needed. Refer to NES Additives – Mandatory Oxidation inhibitors Installation Instructions, NES Vacuum Pumps, and... -
Page 13: Stuffing Box Packing
Remove the lantern gland from the stuffing box. at average working temperature and vacuum. e. Screw the tips of packing pullers into the remaining packing and pull out of the stuffing box. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 13 of 25... -
Page 14: Shutdown Periods
Houghton’s Rust Veto #344 or an equivalent as required. h. Blank off the pump inlet. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 14 of 25... -
Page 15: Disassembly, Inspection And Re-Assembly
(103-2 or 150-2) require replacement). d. Any standard grease. e. Grease as specified in Table 2 for the bearings. f. Solvent such as kerosene. g. Eye bolts. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 15 of 25... -
Page 16: Remove Drive End Bearing And Bracket
Tighten the puller until the shims (4) can be taken out. h. Measure and note the thickness of the shims. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 16 of 25... -
Page 17: Remove Head And Cone Assembly
Assess the cone it is pushed away from the rotor. Support the rotor using for damage and wear using the following steps: NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 17 of 25... -
Page 18: Reassembling Pump
The minimum and maximum allowable press forces wear or damage. and assembly distances are as outlined in Table 3. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 18 of 25... -
Page 19: Install Cone In Head
A 0.002” feeler gauge should not pass between the rotor and cone tapers when the rotor is firmly against the cone. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 19 of 25... -
Page 20: Lobe And End Plate Assembly
The rotor is now firmly against the cone. Set the dial indicator to zero. g. Position the rotor within the end travel range as specified in Table 7. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 20 of 25... -
Page 21: Assemble Bearing Brackets Onto End Plate And Head
Table 6. Pump Model 35 / 60 / 80 150/250 / 130 Nut Torque 32(44) 58(78) 94 (124) Ft-Lbs (N-m) (195) (258) Table 5. Tie Rod Torque Values NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 21 of 25... -
Page 22: Installation Of Packing Into Head And End Plate
Install shims in the gap and secure them with bolts holding the bearing bracket to the head. g. Reevaluate the indicator on the drive end bearing bracket. The indicator reading should remain consistent. NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 22 of 25... -
Page 23: Compressors
(120mm ID x 152mm OD) 3/4” x 3/4” 5 1/2” ID x 6 3/4” OD (20 mm x 20 mm) (130mm ID x 170mm OD) Table 7. Packing Size NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 23 of 25... - Page 24 Bolt, I.E. Cone 105-2 Studs 105-3 *Gasket, I.E. Cone Bearing Bracket, D.E. 108-1 Bearing Bracket Bolt, I.E. Bearing Bracket, I.E. 109-1 Bearing Bracket Bolt, I.E. Rotor Shaft NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 24 of 25...
- Page 25 NX O & M Document No. NES/NX/O&M/00X Rev 0Y Page 25 of 25...
Need help?
Do you have a question about the NX Series and is the answer not in the manual?
Questions and answers