2-3/8” (60.3mm) Dual and Single MagnumDisk™Part #: 
01.GDDA.238.8EBP
01.GSDA.238.8EBP

• Place all parts on clean and uncluttered surface for ease of inspection and assembly
  
  
• Check all parts for defects or damage. Thoroughly clean all threads and seal surfaces of rust, dirt, ceramic, and burrs.
  
  
• If parts cannot be cleaned or repaired satisfactorily, replace it and lay it aside for re-work
  
  
• Pre-assemble parts except for o-rings to insure the seal surfaces and threads are not damaged
  

• Place the 228 viton o-ring on O.D. of the pin, box, or muleshoe body.
  
  
• NOTE: All MagnumDisks are equipped with viton o-rings

• Make certain there are no nicks or imperfections on the housing shelf!!
  
  
• Place the 144 75 duro viton o-ring into the i.d. groove inside the housing
  

• Put liberal amount of grease on body threads, the face of the pin end, and on the o-rings, and o-ring areas

• Place the disk concave (cup shape) side first into housing
  
  
• Insure the disk sets squarely upon the o-ring in the center of the housing

• Next, lubricate the top of the ceramic disk and install the 228 viton o-ring on top of the ceramic disk. The 228 viton o-ring should be resting securely against the top of the ceramic disk

• Assemble the body into the housing and hand tighten. This will push the ceramic disk to the 144 series o-ring.
  
  
• Use a pipe wrench and vice to SLOWLY tighten through the tool. This will push the disk past the 100 series o-ring creating an o.d. seal on the disk.

• Place the tool in the vise, the end away from the ceramic disk.
  
  
• (Do not over-tighten vise as this could cause the housing to ovate and break or crack discs.)
  
  
• Then tighten the body into the housing using a pipe wrench no cheater pipes.
  
  

• None of the o-rings should be visible after the assembly
  
  
• After tightening, visually check to ensure the disk is not cracked
  
  
• Repeat the above procedures for the dual disk assembly.
  
  
• Assemble test fixture and test tool to desired PSI
  

2-7/8” (73.0) Dual and Single MagnumDisk™
Part #: 
01.MDDA.278.8EBP
01.MSDA.278.8EBP

• Place all parts on clean and uncluttered surface for ease of inspection and assembly
  
  
• Check all parts for defects or damage. Thoroughly clean all threads and seal surfaces of rust, dirt, ceramic, and burrs.
  
  
• If parts cannot be cleaned or repaired satisfactorily, replace it and lay it aside for re-work
  
  
• Pre-assemble parts except for o-rings to insure the seal surfaces and threads are not damaged
  

• Place the 232 viton o-ring on O.D. of the pin, box, or muleshoe body.
  
  
• NOTE: All MagnumDisks are equipped with viton o-rings

• Put liberal amount of grease on body threads, the face of the pin end, and on the o-rings, and o-ring areas

• Place the disk concave (cup shape) side first into housing
  
  
• Insure the disk sets squarely upon the o-ring in the center of the housing

• Next, lubricate the top of the ceramic disk and install the 040 Teflon anti-extrusion o-ring on top of the ceramic disk. Then, install the 334 viton o-ring on top of the 040 Teflon anti-extrusion o-ring. Then press the 334 o-ring securely against the top of the 040 and ceramic disk

• Assemble the body into the housing and hand tighten.
  
  
• Use a pipe wrench and vice to SLOWLY tighten through the tool.

• Place the tool in the vise, the end away from the ceramic disk.
  
  
• (Do not over-tighten vise as this could cause the housing to ovate and break or crack discs.)
  
  
• Then tighten the body into the housing using a pipe wrench no cheater pipes.
  
  

• None of the o-rings should be visible after the assembly
  
  
• After tightening, visually check to ensure the disk is not cracked
  
  
• Repeat the above procedures for the dual disk assembly.
  
  
• Assemble test fixture and test tool to desired PSI