REFLECTOR: Landing Gear Pump Not Holding Pressure

[Darrell & Nora Kufalk]

Correct!  I have determined the leakage in internal to the pump.  John
Abrams mentioned there is a pump rebuild kit available.  This is what I was
looking for.  I will be calling Velocity Tomorrow morning for information on
where to get one.

 

Thanks to everyone (especially John) for their help.

 

Darrell Kufalk

 

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Scott Derrick
Sent: Sunday, January 06, 2013 8:13 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Landing Gear Pump Not Holding Pressure

 

sounds to me, like he has found the problem, the pump is leaking internally.

He needs a pump kit, which I think the factory can provide.

Scott

-------- Original Message --------
Subject: Re: REFLECTOR: Landing Gear Pump Not Holding Pressure
From: Don Johnston  <mailto:numa at comcast.net> <numa at comcast.net>
To: reflector at tvbf.org
Date: 01/06/2013 06:41 PM

Not sure I'm following what's going on here. Where is the system capped? Is
it after the nose door cylinder? 

If so, you've got an internal leak in the cylinder. 

If you've capped it before any cylinders, and you're not seeing fluid
leaking, then I would say you've got a bad pressure switch.

The pump will run to maintain pressure in either the UP or DOWN side of the
system depending on the position of the switch. 

My nose gear cylinder had an internal leak and caused the behavior your
describing.

-Don Johnston

From: Scott Derrick <scott at tnstaafl.net>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Cc: 
Date: Sun, 06 Jan 2013 17:21:28 -0700
Subject: Re: REFLECTOR: Landing Gear Pump Not Holding Pressure
far as I know there is down and up pressure...

Scott 




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