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Marq: Shooting Issue

Marker will not fire or has a problem firing. Check the items below and reference the manual as needed.

Issue:
Aired Up & Won't Fire:
  • Battery: Start by putting a brand new battery in your gun. A low battery is known to cause issues.

  • Micro Switch: With your gun on, pull the trigger and confirm the solenoid clicks. If not, remove your grips and verify the trigger is making good contact with the micro switch on the board.

  • Engine: Remove your engine and check the transfer hole for anything that might cause a blockage, such as a small piece of o-ring. Note: The transfer hole is a small channel located at the back of the marker. 

  • HPR/LPR Pressures: Using a pressure tester, verify your LPR is set to 80psi and your HPR is sitting at 230psi. Adjust if necessary.

  • Dwell: Dwell may be too low. Check your dwell and reset to the factory setting of 6ms

  • Check Solenoid:

    • Inspect Manifold: Remove the grip frame and verify the hose connected to the solenoid manifold is secure and undamaged. Replace the hose if damaged. Note: The solenoid manifold is the brass part where the hose connects. (Ref image in the above slideshow)

    • Connector: Check that the solenoid connector is connected and not damaged.

    • Manifold O-Ring: Remove the solenoid manifold retaining screws and remove the manifold itself. Inspect the manifold o-ring (1x3mm) for damage. Replace if needed. 

    • Check for Debris:

    • Body O-Rings: Remove the solenoid and inspect the body o-rings for damage. Replace if needed.

      • Solenoid Body o-rings:  1x3mm

    • Debris in Solenoid: With your marker aired up, push the red reset button on your solenoid. If it does not fire, you might have debris lodged inside your solenoid. You can 1) use one of the following guides to service your solenoid (at your own risk) or 2) contact Bob Long Direct for assistance.

marq6-7-noid-01.jpg
  • Engine/Bolt: Remove the engine and verify the following: Inspect the two o-rings on the Volume Chamber and the four o-rings on the Ram Housing for damage and replace if needed (Reference pic in the slideshow above). Lube with dow55. Tip from Mike at techpb video: If you find that you're damaging your o-rings when reassembling, try lubing these o-rings with a small amount of Tri-Flow oil or lurker lube instead. 

    • #18 - Bolt:

      • #19 - Bolt o-rings:  015 (qty: 2)

    • #17 - Volume Chamber:

      • #7 - Volume Chamber o-rings (outer):  022 (qty: 2)

    • #9 - Ram Housing:

      • #7 - Ram Housing Threads o-ring:  018

      • #10 - Ram Housing o-rings (outer):  022 (qty: 4)

  • Transfer Hole: Check the transfer hole for anything that might cause a blockage (small piece of o-ring). Note: The transfer hole is a small channel located at the back of the marker. 

  • Alignment: Verify that the holes on the engine are aligned with the rear tab. These holes (as well as the tab) should be pointing down when the engine is reinserted into the body.

  • HPR/LPR Pressures: Using a pressure tester, verify your LPR is set to 80psi and your HPR is sitting at 230psi. Adjust if necessary.

Marker Fires with low first shot:
MarqEng2.jpg
Marker Fires on Pull & Release:
  • Micro Switch: Remove your grip to gain access to the board and verify the trigger pin is making good contact with the micro switch. If so, you're micro switch is bad. 

Marker dies off w/ rapid fire:
  • HPA Tank: Check the depth of the pin valve on your air tank to confirm the pin is being depressed enough to pressurize your marker.

  • LPR Pressure: Verify that your LPR is set to 80psi. Adjust if needed.

Marker Breaking Paint:
  • Eyes: Check the eyes on your marker and make sure they are clean and functional. Power on your marker and stick your finger down the feedneck to test the eyes are working. The LED should change color when you block the eyes with your finger. The colors shown on the LED will depend on the type of eye sensors installed on your gun; use the following as a guide. 

    • 2 Eye System: 

      • Green: No paintball in breech

      • Purple: Paintball detected in breech

      • Yellow: Eye malfunction (try cleaning your eyes)

      • Red: Low battery

    • 4C-Eye System:

      • Green: No paintball in breech

      • Blue: Paintball detected in breech

      • Lite blue/gray: Top eye malfunction

      • Purple: Bottom eye malfunction

      • Yellow: Eye malfunction

      • Red: Low battery

  • Detents: Check your detents for excessive wear or damage and replace if needed.

  • Paint: Verify you have a good paint to barrel match and that you're using quality paintballs. Check out the video below for details.

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