Mar 6, 2026 · Members report a range of HWH hydraulic pump failures, with the original poster experiencing a sudden loss of pressure after a shuttle valve replacement and facing a quoted $5,000 …

Nov 28, 2022 · I am really struggling to identify a part on my HWH Hydraulic pump. I have been researching it for a week and I finally found a diagram that I can match to...

Jun 20, 2015 · The HWH FAQ page says to use WD40 to clean and lube the jack shafts. The leading cause of slow retracting jacks is weak springs, and the least-costly remedy to try first.

Nov 19, 2025 · Members report recurring, intermittent failures with the HWH 610 hydraulic leveling system on early 2000s Alpine Coaches, where the system works sporadically—sometimes failing …

Jun 19, 2018 · Ok, the leak is getting bigger in the aft HWH solenoid (servicing right rear jack), so I started the wrestling match with the solenoid, it was on there tight. Used a strap wrench referenced …

Apr 13, 2022 · I am posting this in hopes of helping someone doing a future search for a HWH leaking jack cylinder might find the information useful. Skip to the end for the useful part. My 2003 Dutch Star …

Oct 20, 2022 · HELP! HWH slide hydraulics bleeding after cylinder replacement, which hose to tank? Maggiedad Oct 20, 2022 ace hose hwh hydraulic hydraulics irv2 replace replacement slide tank ••• …

Mar 4, 2022 · The Thomas air compressor that keeps the HWH leveling system aired up is not working. There is power to the relay (behind the water separator in first photo) but there is no signal to open …

Feb 11, 2020 · Replacing HWH solenoid Congratulations! Your success lends me hope in the battle against my stubborn jacks: they go down, back up not so much.

Sep 22, 2006 · I am experiencing a "low battery" light mid way through the auto levelling process. The system slows down and stops before completing the leveling process. So far, I have replaced the …