Hypertherm Freedom 38 PPA, Service Manual

Page: 179 / 218

Freedom 38 PPA Service Manual 809010 179
6 – Air Compression Components
8. Remove the screws and washers that secure the manifold to the separation tank.
9. Remove the manifold from the separation tank. Clean any sealant residue from the manifold contact area. Make sure
the contact area on the tank is clean. Avoid getting any dirt or debris in the tank.
Install the separation tank manifold
1. Make sure the mating surfaces of the tank and manifold are dry and free of residue. Use Permatex
®
#81182 Gasket
Maker and apply a continuous 2 mm to 6 mm (1/16 inch to 1/4 inch) bead of silicone to the tank surface. Surround
all orifices. Do not over apply.
2. Put the 2 O-rings in place. Mount the new manifold and hand-tighten the screws until the silicone begins to squeeze
out around the manifold.
3. Allow the silicone to dry for one hour. Lube and torque the screws to 184 kg∙cm (160 in∙lb). Torque the screws
alternately to 1/3 the torque value, then 2/3, then the final value. Allow 24 hours for the silicone to fully cure.
4. Remove the relief valve and minimum pressure valve from the old manifold. Install these items onto the new
manifold. Use part number 330116 thread sealant on the relief valve. Apply a thread seal bead on 2–3 threads. Do
not over-apply to avoid air line contamination.
5. Remove the remaining fittings from the old manifold. Install each fitting to the appropriate location on the new
manifold. Use part number 330116 thread sealant. Apply a thread seal bead on 2–3 threads of each fitting. Do not
over-apply to avoid air line contamination.
Figure 99 – Separation tank manifold fittings
1 2
1
2