CMRL
Plastic
- Joined
- Dec 24, 2013
- Location
- New Zealand
Hello, we have an old Clark C500-30 that has been running well for a long time. Now we are having the issue of the mast not staying up at any height, with or without load. There is no real leaking from the main mast cylinder. Just very very minor weeping on the piston surface.
It is a single stage mast with side shift. It has large cast steel cups at the top over the end of the piston and a large cup housing at the bottom. It has been kept inside all the time and maintained well.....but it is old. Other than this issue it is a great machine.
So, we are interested attempting what we believe will be a cylinder seal replacement. We have another forklift to help lift up the piston and remove it as well as an overhead gantry.
We have reviewed the previous threads on this machine on this forum. But most of them refer to a 3 stage mast, ours is a single stage (rather tall) mast. Overall lift of the forks is up to 4.15m. So it has a tall single stage mast.
Some of the threads refer to a set of special tools that are required to be used to get the old seals out etc....any help would be appreciated.
Thanks peter
It is a single stage mast with side shift. It has large cast steel cups at the top over the end of the piston and a large cup housing at the bottom. It has been kept inside all the time and maintained well.....but it is old. Other than this issue it is a great machine.
So, we are interested attempting what we believe will be a cylinder seal replacement. We have another forklift to help lift up the piston and remove it as well as an overhead gantry.
We have reviewed the previous threads on this machine on this forum. But most of them refer to a 3 stage mast, ours is a single stage (rather tall) mast. Overall lift of the forks is up to 4.15m. So it has a tall single stage mast.
Some of the threads refer to a set of special tools that are required to be used to get the old seals out etc....any help would be appreciated.
Thanks peter