oldnslo
Super Member
Sodo,
I used to design manifolds like this so bear with me on this.
"F" looks like a solenoid operated valve but not 100% sure. Are there any numbers or letters on the tag? This would be for electrically lowering the mast Vs manual. This could be a leak path and should unscrew.
Black device looks like a manual lowering valve. It could be a cartridge assembly or spring loaded. Unscrew it carefully in case it is under spring load so that parts don't fly out. Since this is what you have been operating to lower I would check this out first
Are any of the plugs labeled B - E directly across from the pressure port? If yes remove that plug carefully and see if there is a spring and ball under it. There could also be a threaded insert style check. I doubt the check is your problem but finding it would at least identify another potential leak point.
I would suspect that the rest of the plugs B - E are being used to block the drill paths required to machine the circuit in this manifold.
Good luck
I won't be checking this site until late tomorrow evening or Saturday some time.
I used to design manifolds like this so bear with me on this.
"F" looks like a solenoid operated valve but not 100% sure. Are there any numbers or letters on the tag? This would be for electrically lowering the mast Vs manual. This could be a leak path and should unscrew.
Black device looks like a manual lowering valve. It could be a cartridge assembly or spring loaded. Unscrew it carefully in case it is under spring load so that parts don't fly out. Since this is what you have been operating to lower I would check this out first
Are any of the plugs labeled B - E directly across from the pressure port? If yes remove that plug carefully and see if there is a spring and ball under it. There could also be a threaded insert style check. I doubt the check is your problem but finding it would at least identify another potential leak point.
I would suspect that the rest of the plugs B - E are being used to block the drill paths required to machine the circuit in this manifold.
Good luck
I won't be checking this site until late tomorrow evening or Saturday some time.