Repair
7-7
P/N 7135268B
E 2008 Nordson Corporation
PURBlue EC
Replacing Safety Valve
WARNING: For safety reasons, the safety valve may not be disassembled.
The complete valve must be replaced every time.
Refer to Installing Service Kit for procedure. However, points 3 and 4 are
omitted.
WARNING: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
Installing Service Kit
The kit contains two O-rings and high-temperature grease.
NOTE: Screw in/out only when the valve and the pump are warm and the
material is soft (approx. 70 °C / 158 °F, depending on material).
Service kit P/N: 394592
Required tools:
Open-jawed wrench. size 19
Pliers
Torque wrench
1. Close tank isolation valve.
2. Use an open-jawed wrench to screw out the safety valve, then extract with
a pliers.
3. Remove outer O-rings and clean outside of safety valve.
4. Install new O-rings.
5. Apply grease to all threads and O-rings.
6. To prevent damage to the O-rings, carefully guide the valve into the hole
when the melter is warm.
7. Tighten valve with a torque wrench.
Torque: 15 Nm (133 lbin)
8. Open tank isolation valve.
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