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DM4: Leaking from the Back

If your marker is leaking from the rear, check the items below. Reference the manual as needed.​

Issue:
ID the Source:
  • Start by trying to verify where the leak is coming from, the bolt or LPR. Place your finger over the rear bolt hole. If the leak stops, or you feel air pressure start to build, replace the bolt o-rings shown below. If leaking from the LPR, replace the LPR o-rings shown below.

Bolt:
  • If it is, use a 1/4” allen key to remove the fuse bolt and replace the bolt Stem o-rings and the 2 large o-rings on the rear bolt cap (aka the outer sleeve). 

    • #3 & 4 - Bolt Stem: 009

    • #8 - Outer Sleeve: 020 (Rear outer sleeve - Blue Area)

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LPR:
  • Remove the LPR and replace the rear body o-rings. While disassembled, inspect the reg seat (small black plug within the adjustment screw) for damage and replace if needed. Reference the maintenance section for steps on removing the LPR.

    •  #5 - LPR Body: 015 (The one on the rear of the body. Inspect the others while disassembled)

    • #7 - Reg Seat (black plug that sits inside the brass adjustment screw): Inspect for damage

Dye DM4 LPR.jpg
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