Maintenance
5-13
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Installing Service Kit
Each kit contains two O-rings and high-temperature grease.
Nordson recommends keeping a supply of pressure control valves on hand
to prevent disruptions in production.
Fig. 5-11
Mechanical pressure control valve Pneumatic pressure control valve (option)
Service kit P/Ns: 394600 Service kit P/Ns: 394600
Required tools:
Open-jawed wrench, size 24
Pliers
Torque wrench
Required tools:
Open-jawed wrench, size 27
Pliers
Torque wrench
1. Heat melter to operating temperature.
WARNING: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
2. Relieve melter pressure.
− 3. Close compressed air supply.
4. Refer to Measuring Insertion
Depth
4. Unscrew air hose.
5. Use an open-jawed wrench to screw out the pressure control valve, then
extract with a pliers.
If the tank is not empty:
Collect any adhesive that may escape (bowl).
Quickly screw in a replacement pressure control valve or a plug, then perform
maintenance work.
6. Remove old O-rings and disassemble and clean pressure control valve.
Refer to separate Parts List for detailed drawing of the valve.
NOTE: Disassemble valve only when warm.
7. Install new O-rings. Apply grease to all threads and O-rings.
8. Guide pressure control valve into the hole when the melter is warm and
tighten with torque wrench.
Torque: 15 Nm (133 lbin)
9. Refer to Adjusting Setting Screw 9. Attach air hose.
− 10. Open compressed air supply
again.
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