June 25, 2017 at 2:00 am #22688joeaParticipant
My 12 year old Airforce hand pump is giving me an issue. I get the pressure up to 50 BAR and I get really heavy resistance on the upstroke of the pump. I cant pump it past this point. When I hold my hand over the fill cap on the end of the hose it seems to be blowing out on both upstroke and downstroke. Any ideas what’s up?
JoeJune 25, 2017 at 5:59 am #269910AnonymousInactive
Hea Joe ………
First thing I would check is the inlet check valve and or it’s spring.
Clean out the excess lube in the inlet also, often times this is the place where a lot of lube ends up.
If not you need to rebuild the pump when doing so the biggest mistake is using to much silicone lube.
A light coat is all you need, don’t put globs of it on ……. just a thin coat.
Keep your hands clean, grease free to help from getting into a frustrated build.
Also there is a rubber ball that need cleaning with denatured alcohol and clean the inlets where it rests in also.
Don’t use lube on this ball, you don’t want a sticky ball ….. :rofl:
Best rebuild video even if this guy has his ranting, just mute it.
If you only need the main Viton 90 durometer O-ring, I believe the valve O-ring is the same size … not sure … it’s been awhile.
If your in the USA, PM me your address and I’ll send u a bunch of them for free, no charge to u Sir.
~ GregJune 25, 2017 at 4:59 pm #269914joeaParticipantquote GKU:
Thanks Greg! Looks like I have a greasy job to do. I’ll PM my address…thanks for the generosity.
Sent from my iPad using Tapatalk
- You must be logged in to reply to this topic.