6
Inspection/maintenance
Inspection/maintenance for the gear unit
Assembly and Operating Instructions – Explosion-Proof Gear Units
135
6.8.7
Replacing the oil seal
NOTICE
Damage to oil seal when mounted below 0 °C.
Damage to oil seal.
•
Store oil seals at ambient temperatures over 0 °C.
•
If necessary, heat the oil seal before mounting it.
Proceed as follows:
1. Ensure that there is a sufficient grease reservoir between the dust lip and sealing
lip, depending on the gear unit design.
2. If you use double oil seals, the space has to be filled with grease for one third.
6.8.8
Painting gear units
SEW‑EURODRIVE delivers the drives with a coating that complies with the require-
ments regarding the prevention of electrostatic charge according to EN/IEC 13463‑1.
WARNING
Risk of explosion due to electrostatic charge and sparks caused by improper paint-
ing.
Severe or fatal injuries from explosion.
•
If the motor is painted, observe the requirements for painting to avoid electro-
static charge according to EN 13463‑1.
WARNING
Paint can block the breather valve and damage the sealing lips of the oil seals.
Severe or fatal injuries.
•
Thoroughly mask the breather valve and sealing lip of the oil seals with strips
prior to painting/re-painting.
•
Remove the masking strips after painting.
6.8.9
Clean the gear unit
INFORMATION
When cleaning the gear unit, do not use materials or procedures (e.g. compressed
air) that result in processes causing electrical charge on the coating.
24804134/EN – 05/2018