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Old 05-24-2018, 09:12 PM   #1
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Need gas strut pressures

Several of the gas lifting struts on the basement bay doors need replacing on a 2005 Kountry Star DP/

The doors which originally had two gas struts the wet bay and inverter bay doors were replaced with two new 20" 40# gas struts supplied by Newmar.
Two doors operate and hold properly.

The doors under the slides with only one 20" lift and the manual adjuster need replacing. The single 40# lifts will not hold the doors in a fully open position. Newmar can not tell what pressure struts were used on these doors. They said that they used 40, 60 or 80# struts but no records of what doors.

Need recommendations from owners who have replace the gas struts their units Dutch Star or Kountry Star.

Don't want to use too strong of a strut that could damage the doors.

Any recommendations?
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Old 05-25-2018, 11:24 AM   #2
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If the struts are all the same length, using a stronger strut would only make it difficult to close the door, not damage it. (You'd only close and open it once to discover it's the wrong strut) If the doors are the same size, logic would suggest that if two 40# struts properly hold a door open, one 80# should do the same. The other solution would be to use Google to find some of the many resources available online to calculate the size of struts needed. You could also buy one 60# and one 80# and try them out. Since you say you need to replace multiple struts, after testing and using those two, you should know what to order. Aren't the old struts marked with identifying numbers?
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Old 05-25-2018, 10:54 PM   #3
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The numbers of the struts in question had been worn off over the years. Did some more research measured the cylinder diameter and the shaft diameter on struts in question and they were larger than the 40# struts. Checked the struts under the bed and the identifying numbers were still readable. They were 80# struts. Finally took off one of the better struts, set up a bath room scales and using a board pressed the strut to the full retracted position. It pressed to 80#.

Dwight
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