T&T: Steering system (hydraulic) pressures

[Peter Bennett]

Friday, March 30, 2007, 3:08:11 PM, Tom wrote:

TH> Replacing hoses that feed the double-acting Teleflex Capilano hydraulic
TH> steering cylinder on a twin eng 42' PT trawler. What would listees
TH> suggest as the rating for hoses-PSI. The helm pumps or auto pilot pump
TH> produce the power to actuate the cylinder. Then there is the backfeed
TH> into two rudders in a hard turn (17 knots) or running off big waves
TH> while steering hard over. So, I can't decide how to estimate the actual
TH> pressure that could be generated. Thanks for suggestions.

TH> Tom Hitchcock; 281-383-2927 

According to a Teleflex manual I have, the relief valve setting for
the HH5270 helm pump is 1500 PSI, and for the HH5271 or 5272 it is
1000 PSI

-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Lien Hwa 28 (AKA Polaris 30) "Sea Spray"
GPS and NMEA info: http://vancouver-webpages.com/peter 
Vancouver Power Squadron: http://vancouver.powersquadron.ca