Nordson 25B Customer Product Manual

©2024 Nordson Corporation
1044131-06
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Table of Contents
As Needed .................................................................................................................................... 4-8
Troubleshooting ............................................................................................................................ 5-1
Common Problems ........................................................................................................................ 5-2
Minimizing Pressure Deviations ..................................................................................................... 5-7
Air Supply ..................................................................................................................................... 5-7
Air Exhaust ................................................................................................................................... 5-7
Correcting Siphon Problems......................................................................................................... 5-7
Cavitation .................................................................................................................................... 5-7
Priming Problems ........................................................................................................................ 5-8
󰀪 ................................................................................... 5-8
25B Air Valve and Air Motor Repair ............................................................................................. 6-1
Introduction .................................................................................................................................... 6-1
Air Valve Repair ............................................................................................................................ 6-1
Tools and Materials Required ....................................................................................................... 6-1
Air Valve Removal ........................................................................................................................ 6-1
Air Valve Disassembly ................................................................................................................. 6-2
Snapper Rebuild.......................................................................................................................... 6-3
Air Valve Assembly ...................................................................................................................... 6-4
Air Valve Installation .................................................................................................................... 6-5
Air Motor Repair ........................................................................................................................... 6-5
Tools and Materials Required ...................................................................................................... 6-5
Preparation .................................................................................................................................. 6-5
Separating the Air Motor and Hydraulic Section.......................................................................... 6-6
Air Motor Disassembly ................................................................................................................ 6-6
Air Motor Disassembly (con’t) ..................................................................................................... 6-7
Piston Repair ................................................................................................................................ 6-8
Piston Disassembly ..................................................................................................................... 6-8
Piston Assembly .......................................................................................................................... 6-9
Air Motor Assembly ....................................................................................................................... 6-9
Connecting the Air Motor and Hydraulic Section ....................................................................... 6-10
Returning the Pump to Service .................................................................................................... 6-10
25B 4:1 Hydraulic Section Repair ................................................................................................ 7-1
Introduction .................................................................................................................................... 7-1
Tools and Materials Required ....................................................................................................... 7-1
Preparation ................................................................................................................................... 7-1
Dismounting the Pump ................................................................................................................ 7-1
Separating the Air Motor and Hydraulic Section.......................................................................... 7-2
Disassembly .................................................................................................................................. 7-3
Disassembly (con’t) ....................................................................................................................... 7-4
Cleaning, Inspection, and Parts Replacement............................................................................... 7-5
Ball Check Test ............................................................................................................................. 7-5
Packing Gland Replacement ....................................................................................................... 7-5
Type G Packing Gland Rebuild ................................................................................................... 7-6
Assembly ...................................................................................................................................... 7-7
Assembly (con't) ........................................................................................................................... 7-8
...................................................................................................................................................... 7-8
Connecting the Air Motor and Hydraulic Section ......................................................................... 7-8
Returning the Pump to Service..................................................................................................... 7-9
25B Air Motor and Air Valve Parts ............................................................................................... 8-1
Parts .............................................................................................................................................. 8-1
Using the Illustrated Parts List ...................................................................................................... 8-1
Air Motor Parts .............................................................................................................................. 8-2
Air Valve Parts .............................................................................................................................. 8-4
󰀪 ...................................................................................................................... 8-6
Air Motor and Air Valve Service Kits ............................................................................................. 8-7
󰀪 .................................................................................................................................... 8-7
Air Motor Seal Kit ........................................................................................................................ 8-7
Air Valve Seal Kit ......................................................................................................................... 8-7
Air Valve Crankshaft and Arm Kit ................................................................................................ 8-8
Options ......................................................................................................................................... 8-8
Air Motor Accessory Group ......................................................................................................... 8-8
.................................................................................................................................................... 8-9
Adhesives, Sealants, and Lubricants ......................................................................................... 8-9

Nordson 25B Specifications

General

Brand	Nordson
Model	25B
Category	Water Pump
Language	English