4
Mechanical installation
Installing the gear unit
Assembly and Operating Instructions – Explosion-Proof Gear Units
40
4.6.5
Components made of elastomers with fluorocarbon rubber
Under normal operating conditions and at temperatures up to 200 °C, fluorocarbon
rubber is very stable and safe. However, when heated to more than 300 °C, e.g. by
fire or the flame of a cutting torch, fluorocarbon rubber forms harmful gases and va-
pors as well as residue.
CAUTION
Health risk due to dangerous gases, vapors, and residue created by heating fluoro-
carbon rubber to > 200 °C.
Damage to health.
•
Make sure that components made of fluorocarbon rubber are not exposed to
temperatures > 200 °C. Remove the components, if necessary.
•
Avoid inhaling fluorocarbon rubber gases and vapors as well as skin and eye
contact at all costs.
•
Avoid contact with the cooled-down fluorocarbon rubber, as dangerous residue
has formed while it was heated.
The following components of R..7, F..7, K..7, K..9, S..7, and SPIROPLAN
®
W gear
units can contain elastomers made of fluorocarbon rubber.
•
Oil seals
•
Breather valve
•
Screw plugs
The user is responsible for safe handling during the service life including eco-friendly
disposal.
SEW‑EURODRIVE is not responsible for damage caused by improper handling.
4.6.6
Venting the gear unit
WARNING
Risk of explosion due to overheated gear unit due to a dirty or dusty breather valve.
Severe or fatal injuries
•
Check the breather valve function regularly and replace it if necessary.
•
In case of high dirt and dust load use a breather filter instead of a breather valve.
The following table lists gear units that do not require venting:
Gear unit
Mounting position
R..07
M1/M2/M3/M5/M6
R..17/R..27/F..27
M1/M3/M5/M6
W..10/W..20/W..30
M1 – M6
W..37/W..47
M1/M2/M3/M5/M6
K..19/K..29
M1/M2/M3/M5/M6
All other gear units are delivered with a breather valve suitable to the mounting posi-
tion and activated.
24804134/EN – 05/2018
