Page
8
of
12
Seals:
The seals must be changed when changing the grease.
Seal kits may be purchased from AUMA.
Grease:
Grease and seal change is recommended after the following operation times:
If operated seldom, after 10
– 12 years
If operated frequently, after 6
– 8 years
Original AUMA grease must be used.
For the grease type, refer to name plate on gearbox
Lubricants should not be mixed
Table 2 Bevel gear lubricant quantities
Gearbox
GK10.1
ABG10.2 ABG14.2 ABG16.2
Weight
28 oz.
7.0 oz.
17.6 oz.
35.3
0.8 kg
0.2 kg
0.5 kg
1 kg
The removed lubricant and the cleaning agent used must be disposed of according to the relevant
regulations.
Change of grease
Remove gearbox from valve:
During this time, the valve/pipeline must not be under pressure!
Mark position of the gearbox on the valve, loosen connecting bolts to the valve and remove the
gearbox.
Remove old grease:
Grease type, see name plate; grease quantities see table 2. The numbers used in the following text refer
to the spare parts list(s) of these operation instructions.
Part numbers in bold type refer to GK type bevel gear
Remove bolts at bearing flange (
2
/3.1).
Remove bearing flange with bevel wheel (
4
/2.2) from housing.
Remove old grease completely from the gear housing and the individual parts and clean bevel
gear. For this purpose, kerosene or a similar cleaning agent may be used.
Remove and replace the seals and O-rings (
07, 08,
and
016/
001,004 and 003) with new ones.
Available as
S2/
S1 seal kit.
Clean mounting faces at bevel housing (
1
/1.0) and bearing flange (
2
/3.1) with bevel wheel.
For the GK10.1, install grease into the housing (
1
) before going to the next step.
Mount bearing flange (
2
/3.1) with bevel wheel into housing, while paying attention to the O-ring
(
09
/003) at bearing flange and quad-ring (
016/001
) in the housing.
Screw in 4 bolts with lock washers and fasten them evenly crosswise to the appropriate torque
according to table 1.
