Here are a few tips and tricks for the installation of seals. Our own experiences, as well as tips we have received from experienced technicians, have contributed to the creation of this page.
Use a narrow parcel tape when installing this type of seal. Thus, an overexpansion of the PTFE sliding ring is avoided and the danger of tearing is considerably reduced
Do not put unsuitable tools behind the seal (groove bottom) because this will damage the groove. Instead, lance through the groove with your assembly tool (a screwdriver will do), and in this way remove the old seals.
We keep coming across wrongly installed supporting rings.
Basically it can be said that supporting rings always SUPPORT the o-ring and therefore should be installed behind the o-ring (on the side which is turned away from pressure).
There are a few rare exceptions, which will not be illustrated here.
If possible, do not use o-rings as dynamic seals.
During Hubbewegungen [stroke travel], the o-ring tends to “roll” and therefore often breaks after a short operating time.
It is often necessary to install thick-walled seal elements into closed installation spaces. In order to “soften” seals, hot water or hydraulic oil can be used for most materials. (Caution: The temperature of the oil must not exceed 100°C. If the oil smokes, it has reached a temperature of around 270°C!!!)
Here is a list of diagrams showing the exact specifications of the installation spaces.