Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Thu, 07 Nov 2002 09:00:13 -0500
Message-ID: <redirect-1855284@logan.com>
Mime-Version: 1.0
From: "Lorn H. Olsen" <lorn@dynacomm.ws>
Subject: [LML] Almost Back Flying, Again
Content-Type: text/plain; charset="us-ascii" ; format="flowed"

Every 4 seconds my hydraulic pump runs for about 1/4 of a second. The 
plane went into the shop last week. When on jacks, with the gear up, 
the pump ran every 4 seconds as usually. The mechanic had me lower 
the gear 1/2 way. He then moved the left wheel up and down. The right 
wheel went down and up. He also pulled and pushed on the nose gear 
wheel and door. The other wheels pushed and pulled, just like you 
would expect. We tried the test again with the wheels up and the pump 
did not run. We left the plane sit with the gear up for 15 minutes 
and the pump did not run. I will try again today but for now, pushing 
the gear up and down has fixed the problem.

The problem stayed fixed on the ground. When I flew the plane 
yesterday, I had the same problem. The pump ran every 4 seconds and 
if I pulled the CB for a while, the pump ran for a while. On the 
ground and on jacks the problem repeated. After a few ups and downs, 
the problem went away again but one of my down rat trap springs broke.

Today I will be putting in pressure gauges under the passenger seat 
and new gear down springs to see if they can help determine what the 
problem is.

If anyone has any suggestions, I am all ears.

Thanks,
-- 
Lorn H. 'Feathers' Olsen, MAA, DynaComm, Corp.
248-478-4301, mailto:lorn@dynacomm.ws
LNC2, O-320-D1F, N31161, Y47, SE Michigan