
6
Inspection/maintenance
Inspection/maintenance for the gear unit
Assembly and Operating Instructions – Explosion-Proof Gear Units
120
6.8.2
A: Helical, parallel-shaft helical, helical-bevel and helical-worm gear units with oil level plug
Checking the oil level at the oil level plug
CAUTION
The R../R.. compound gear units in mounting position M1 and S../R.. compound
gear units in mounting position M3 require sufficient lubrication. This is why the oil
level is increased.
•
The installed oil level plugs must not be used.
Proceed as follows:
ü
The prerequisites for inspection and maintenance work are fulfilled, see beginning
of chapter "Inspection/maintenance" (→
107).
1. Determine the position of the oil level plug and the breather valve using the mount-
ing position sheets, see chapter "Mounting positions" (→
2. Place a container underneath the oil level plug.
3. Slowly remove the oil level plug. Small amounts of oil may leak out.
4. Check the fill level at the oil level bore (3) using the oil dipstick (1). The oil dipstick
is enclosed with the operating instructions.
NOTICE
For the measurement, make sure that the end (2) of the oil dipstick (1) always points
up vertically.
2
1
max.
min. = max _ X
min.
3
Ø
X
90°
Oil
Oil
18634635
Max. fill level (max.): Lower edge of the oil level bore
Minimum fill level (min.): The minimum fill level depends on the diameter of the oil
level bore and is determined using the oil dipstick.
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 × 1
1.5
M12 × 1.5
2
M22 × 1.5
3
24804134/EN – 05/2018