8
BLACOH Industries
Safety Wire Bolt
Charging Valve
Non-wetted Housing
Rubber O-Ring
Wetted Cap
PTFE Bellows
Anti-extrusion Button
PTFE Encapsulated O-Ring
Reassembly
Use caution not to cross-thread dampener cap(s) on reassembly.
Make certain all components are clean and free of corrosion before reassembly.
Safety wire must be re-installed on reassembly (see Safety Wire section below).
1. Install PTFE encapsulated O-ring
onto wetted cap
, making sure O-ring is seated in cap bead groove.
2. Snap anti-extrusion button into recess in center of PTFE bellows.
3. Snap PTFE bellows onto wetted cap, making sure top of bellows is touching cap lip.
4. Install rubber O-ring
onto O-ring groove in PTFE bellows, making sure O-ring is seated in bellows bead groove.
5.
Lubricate wetted cap threads and rubber O-ring installed on PTFE bellows with LOCTITE C-5A Copper Anti-Seize, Molykote G-n Metal
Assembly Paste or similar anti-seize compound. Apply paste
sparingly
by hand or with a stiff brush, rubbing paste into cap threads.
6. Spray bellows and inside of non-wetted housing with a solution of soap and water that is slippery to the touch.
7. Thread two 3” 5/16–18 Grade 8 bolts into threaded bolt holes in wetted cap (if bolts were removed on disassembly).
8. Insert cap/bellows assembly straight down into non-wetted housing, using caution not to cut or damage PTFE bellows/O-rings on housing
threads.
9. Using a rod or long shank screwdriver and the two bolts, thread wetted cap (clockwise) into non-wetted housing carefully to avoid cross-
threading (Figure 3). Cap must be tightened firmly into housing to ensure a proper seal. Remove the two bolts from wetted cap.
Single Cap PTFE Bellows Model (Figure 5)
1. Install bladder onto non-wetted cap, making sure internal bladder bead is seated in cap bead groove.
2.
Lubricate non-wetted cap threads with LOCTITE C-5A Copper Anti-Seize, Molykote G-n Metal Assembly Paste or similar anti-seize
compound. Apply paste
sparingly
by hand or with a stiff brush, rubbing paste into cap threads.
3. Spray bladder and inside of wetted housing with a solution of soap and water that is slippery to the touch.
4. Thread two 3” 5/16-18 Grade 8 bolts into threaded bolt holes in non-wetted cap (if bolts were removed on disassembly).
5. Insert cap/bladder assembly straight down into wetted housing, using caution not to cut or damage bladder on housing threads.
6. Using a rod or long shank screwdriver and the two bolts, thread non-wetted cap (clockwise) into wetted housing carefully to avoid cross-
threading (Figure 3). Cap must be tightened firmly into housing to ensure a proper seal. Remove the two bolts from non-wetted cap.
Single Cap Elastomer Bladder Model (Figure 4)
Step 1 Housing & Cap(s)
To reassemble housing and cap(s), refer to the appropriate instructions below for the specific XP dampener model.
Safety Wire Bolt
Charging Valve
Non-wetted Cap
Elastomer Bladder
Wetted Housing
Figure 4 Single Cap Elastomer Bladder Model
Figure 5 Single Cap PTFE Bellows Model
