Leaking levellers (jacks)
I've noticed all 4 jacks on my 2000 Holiday Rambler are starting to leak automatic transmission fluid. I believe the seals are going. Someone suggested using a "stop leak additive" to my reservoir, bu...
Forum Discussion
westend wrote:
This might not work but I've done it on some problem seals on cylinders: extend cylinder and wipe down, using 400 or so emery cloth, completely sand the cylinder's surface. Clean the cylinder real good with solvent. Apply oil to the cylinder surface.
Hydraulic cylinders are usually highly polished and hardened. Only sand sharp spots (nicks) very little and carefully to remove burrs only.
Roughing up a cylinder is a good way to ruin a cylinder and cause seals to leak.
New seals are far cheaper than permanently damaging even one cylinder.
I use Allied Seal for new seals, packing, or kits.
BTW, this was taught to me by a relative with many years at a hydraulic cylinder repair company. Big, expensive stuff ;)
