Nordson VersaBlue VA, Manual

Page: 221 / 272

2
1
Fig. 7‐25
Repair
7‐17
P/N 213828_11
2014 Nordson Corporation
VersaBlue_PPA
Replacing Safety Valve
ATTENTION: 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.
ATTENTION: Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
Installing Service Kit
Each kit contains two O‐rings and high‐temperature grease.
NOTE: Screw in/out only when the valve (2, Fig. 7‐25) and pump are warm
and the material is soft (approx. 70 °C/158 °F, depending on material).
Required tools:
Open-end wrench, size 19
Pliers
Torque wrench
1. Close tank isolation valve (1, Fig. 7‐25).
2. Use an open-end wrench to unscrew 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.