Nordson VersaBlue 100H/100H, Manual

Page: 62 / 108

Maintenance
5-12
P/N 7146386A
E
2008 Nordson Corporation VBN w/o Control System
Pressure Control Valve
(contd.)
Installing Service Kit
Each kit contains two O-rings and high-temperature grease.
Fig. 5-11
Mechanical pressure control valve Pneumatic pressure control valve (option)
Service kit P/N: 394600 Service kit P/N: 394600
Required tools:
Open-end wrench, size 24
Pliers
Torque wrench
Required tools:
Open-end 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-end 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 section Parts 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.