Runcoik Report post Posted December 10, 2017 I have a 2007 Monaco Dynasty 42' the problem is the passenger side slide out won't stay in the out position it will creep in 2-3" over a 12 hour period. Share this post Link to post Share on other sites
hermanmullins Report post Posted December 10, 2017 Your front slide is hydraulic and the cylinders are push/pulls. The units are HWH and I would give them a call. Please be patient, sometime it takes awhile for the tech to respond. Herman Share this post Link to post Share on other sites
Runcoik Report post Posted December 10, 2017 4 minutes ago, Hermanmullins said: Your front slide is hydraulic and the cylinders are push/pulls. The units are HWH and I would give them a call. Please be patient, sometime it takes awhile for the tech to respond. Herman Thanks Herman Share this post Link to post Share on other sites
wolfe10 Report post Posted December 10, 2017 There could be several causes of this loss of hydraulic pressure allowing the slide to move. These include: 1. A leak-- should be able to see it. Look particularly at hose ends. 2. A solenoid at the HWH motor/pump leaking internally. 3. On many there is a manual "T" handle at the solenoids, on others, just a screw and lock nut-- it could be slightly open and just need tightening. Share this post Link to post Share on other sites
dickandlois Report post Posted December 10, 2017 The Hydraulic fluid picks up dirt over time as the Rams are extended and retracted into the cylinders. Also the cycling of the system drags dirt into the cylinder seal surface and the seals can weep fluid. It is never a bad idea to change the hydraulic fluid after a few years. Some cylinders have grease fittings that use lithium grease to clean the seals and maintain the seal integrity . Brett mentioned some good items to check , the lines flex at the connection points in many cases and over time form stress cracks in the hydraulic lines. One also has to remember that coach builders consider price above quality. There is high quality hydraulic line made with materials that have better over all range of temperature flexibility. Most hydraulic lines are quit flexible when warm but as temperatures drop become quite stiff. Rich. Share this post Link to post Share on other sites
manholt Report post Posted December 10, 2017 Quote Slide creeps in. When slides are all in and Jacks are up (if you have Jacks), check level of hydraulic fluid...it should be at the top mark, if not add fluid. Share this post Link to post Share on other sites
