Happijac Parts list/Repair Instruction
I am having some difficulty with the two rear motor heads on my jacks. One seized up and the other is really noisy, so I emailed Happijac about repair costs and this is what I got. If the motor he...
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Thanks for the pdfs, good to have.
My camper has spent most of its life outside, and the jacks definitely show it. I can tell you a seized motor is most likely caused by a seized lower bearing, requiring complete motor disassembly or replacement. I found the correct bearing at Grainger. Someone here suggested using an air nozzle at the lower drain hole to remove the plastic cover, and I can tell you it worked well. One new motor allowed me to rebuild them one at a time without taking the camper out of service, leaving me with a spare.
My camper has spent most of its life outside, and the jacks definitely show it. I can tell you a seized motor is most likely caused by a seized lower bearing, requiring complete motor disassembly or replacement. I found the correct bearing at Grainger. Someone here suggested using an air nozzle at the lower drain hole to remove the plastic cover, and I can tell you it worked well. One new motor allowed me to rebuild them one at a time without taking the camper out of service, leaving me with a spare.
