Instructions For Assembly And Disassembly; General; Tools; Preparation - Johnson Pump TG GS2-25 Instruction Manual

4.0 Instructions for assembly and disassembly

4.1

General

Insufficient or wrong assembly and disassembly can lead to the pump malfunctioning, high repair
costs and long-term inoperability. Contact your local supplier for information.
Disassembly and assembly may only be carried out by trained personnel. Such personnel should be
familiar with the pump and follow the instructions below.
Non-compliance with the instructions or neglecting warnings can damage the user or lead to severe
damage to pump and/or pump unit. SPX is not liable for accidents and damage resulting from such
neglect.
4.2

Tools

- Set of nut spanners
- Set of hexagonal spanners
- Shaft nut spanner
- Screw driver
- Anti-recoil hammer
- Carton, paper, shammy
- Coupling extractor
- Ball bearing extractor
- Assembly oil
or lubricant
- Loctite 241
- Loctite 648
- Ball bearing grease
- Measuring tool for adjustment
of the axial clearance
- Measuring tool to measure the height
of the adjusting screw of the safety valve
4.3

Preparation

All activities described in this chapter need to be executed in a workshop suitable for repairs or a
mobile workshop, arranged in the working environment.
Always work in a clean surrounding. Keep all sensitive parts, such as seals, bearings, mechanical
shaft seals, etc. in their packaging as long as possible.
Always follow the instructions in section 3.21 with regard to:
• taking the pump out of service
• back pull-out and front pull-out
• disassembly of the pump from the system
4.4

After disassembly

• After each disassembly carefully clean the parts and check them for damage, if any.
Replace all damaged parts.
• Replace damaged parts with original components.
• When assembling, use new graphite gaskets. Never use flat gaskets that have been used
previously.
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
Width 8 - width 30
Width 2 - width 14
HN 2-4-6-7-8-10-12
Rubber, plastic, lead
For example Shell ONDINA 15
Esso BAYOL 35
For example OKS 477
Max. temperature = 150°C
Heat resistant type
For type see section 3.21.3.5
Also see section 3.21.6
Also see section 3.17.3
• lubrication of the bearings
• adjusting axial clearance
• adjusting safety relief valve
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