Report this forum post

Hi all, I have just replaced the seals on the two lift rams (might have heard this model referred to as pencil rams ?)
Anyway, they (or one of them so far) are leaking already. I lifted something near max capacity and they were ok but later, under light load or just unloaded I heard a noise and there was a leak.
The rods are in good condition.
I bought the seals from a hydraulic place not from Manitou by measuring the old seals (which obviously were leaking) and now I am wondering if the rams are an oddball size and the old ones were leaking for the same reason, i.e. wrongly sized, as they weren't really damaged ?
The rod is definitely 50mm. The seal external diameter, both what I removed and what I installed, is 60mm but is it possible/likely that this should be 61 or 62 ?
Thanks for any advice.
  • Posted 24 May 2025 17:56
  • Modified 25 May 2025 22:40 by poster
  • By John_Hubbard
  • joined 24 May'25 - 1 message
  • Poitou Charentes, France

This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.

Indicates mandatory field
Toyota 8FD35U
Flesherton, Ontario, Canada
Used - Sale
JLG 260MRT
JLG 260MRT 2016
Flesherton, Ontario, Canada
Used - Sale
Upcoming industry events …
July 22-24, 2025 - Sydney, Australia
November 11-13, 2025 - Singapore, Singapore
November 12-13, 2025 - London, United Kingdom
Fact of the week
Bluetooth is named after the 10th-century Viking king, Harald Bluetooth, who united warring tribes in Denmark and Norway. In 1997, Jim Kardach from Intel gave the name to the technology because of its ability to unite different communication protocols, just as Harald united various tribes.
Movers & Shakers
Pete Stanislawczyk Pete Stanislawczyk
Chief executive officer, East Penn Manufacturing
President, East Penn Manufacturing
APAC vice president, Jungheinrich
Senior VP direct sales and marketing, Daifuku Intralogistics America
Toplift Ferrari TFC36-48
Stoney Creek, Ontario, Canada
Used - Sale
USD1
Nagano NUL120-6
Yokohama, Japan
Used - Sale
Fact of the week
Bluetooth is named after the 10th-century Viking king, Harald Bluetooth, who united warring tribes in Denmark and Norway. In 1997, Jim Kardach from Intel gave the name to the technology because of its ability to unite different communication protocols, just as Harald united various tribes.