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.

HWH recommends spraying the exposed chrome piston on each jack with WD-40. I find that when doing this aim the flexible spray tube up into the recess where the chromed piston retracts into the jack …

Jul 30, 2022 · There is a constantly blinking red light on the backside of my hwh control panel next to the drivers seat, can anyone tell me what that light is for?

Jun 22, 2012 · Just finished replacing all eight springs on four HWH AP29964, 12000 lbs x 13" straight down leveling jacks on a 2005 KSDP with the new style part # R92642. As a side note: The jacks …

Feb 16, 2026 · Members discussed troubleshooting air loss in the suspension bags of an '03 Magna, focusing on the "six packs" (manifolds with six solenoid air valves controlling the leveling system). …

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 …

Nov 13, 2023 · HWH has about 1 million total installations out there, so they are kept busy refurbishing older units like ours. I only wish they would sent periodic e-mail updates as units are worked over. I …

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 …