6
Inspection/maintenance
Inspection/maintenance for the gear unit
Assembly and Operating Instructions – Explosion-Proof Gear Units
131
The minimum fill level corresponds to the mark on the oil dipstick.
Ø oil level bore
Minimum fill level: Mark X at the oil dipstick
(see following figure)
mm
M10 x 1
1.5
1,5
5
4
3
2
9007199273378699
5. If the oil level is too low, fill in new oil via the oil level bore until the oil level reaches
the lower edge of the bore.
6. Screw in the oil level plug again. Observe for this the tightening torques in chapter
38).
Checking the oil level at the oil level plug
Proceed as follows to check the oil of the gear unit:
1. Observe the information at the beginning of chapter
"
2. Remove some oil at the oil level plug.
3. Check the oil consistency.
•
Viscosity
•
If you can see that the oil is heavily contaminated, SEW‑EURODRIVE recom-
mends to change the oil even if this is outside the service intervals specified in
"Inspection and maintenance intervals" (→
4. Check the oil level. See previous chapter.
Changing the oil at the oil level plug
WARNING
Risk of burns due to hot gear unit and hot gear unit oil.
Serious injuries.
•
Let the gear unit cool down before you start working on it. Due to the better flow-
ability, the gear unit oil should still be warm so that the gear unit can be drained
best.
1. Observe the information at the beginning of chapter
"
2. Set up the gear unit in M5 or M6 mounting position. See chapter
136).
3. Place a container underneath the oil level plug.
4. Remove the oil level plugs on the A- and B-side of the gear unit.
5. Drain all the oil.
24804134/EN – 05/2018