AUMA Part-turn gearboxes GS 50.3 - 250.3, primary reduction gearings VZ 2.3 - 4.3_GZ 160.3 - 250.3 - Manual (Page 22)

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Fill housing (001.0) with remaining grease and fit the complete housing cover
with input drive shaft (003.0). Screw in bolts with lock washers and fasten them
evenly crosswise to the appropriate torque according to table 2, page 11.
.
Continue with section “After maintenance”, page 22.
12.3.3 Double-stage primary reduction gearing GZ 200.3 – GZ 250.3 (reduction ratio 16:1)
Refer to spare parts list GZ 160.3 – GZ 250.3, page 28.
Grease type, see name plate; grease quantities, see page 19, table 4.
.
Remove bolts with lock washers from housing cover (002.0) and pull off housing
cover with the complete input drive shaft (003.0). .
Take off screws with lock washers from housing frame (010.0) and remove
housing frame with planet carrier and hollow wheel. .
Remove screws from the plate with internal teeth and separate the plate with
internal teeth from the input drive shaft (003.0). .
Remove screws (021) from the second stage of the plate with internal teeth and
separate it from the pinion (011.1). .
Remove old grease completely from the housing and the individual parts and
clean them. For this purpose, a suitable cleaning agent should be used. .
Clean mounting faces at housing (001.0), housing frame, housing cover (002.0)
and hollow wheels. Replace O-rings by new ones. .
Fill housing (001.0) with new grease.
.
Fix second stage of the plate with internal teeth on housing frame (010.0).
.
Replace complete housing frame. Screw in bolts with lock washers and fasten
them evenly crosswise to the appropriate torque according to table 2, page 11. .
Fill housing frame (010.0) and housing cover (002.0) with the remaining grease.
.
Fix first stage of the plate with internal teeth on the housing cover (002.0).
.
Place complete housing cover with input drive shaft onto housing frame. Screw
in bolts with lock washers and fasten them evenly crosswise to the appropriate
torque according to table 2, page 11.
12.4 After maintenance
.
If applicable, mount multi-turn actuator.
.
Reset the end stops.
.
For gearboxes with multi-turn actuator, check the setting of the limit switching
according to the operation instructions for multi-turn actuators; if required, reset. .
Perform test run to ensure the proper function.
.
Check worm gearbox for damage to paint finish. Do a thorough touch-up to
prevent corrosion. Original paint in small quantities can be supplied by AUMA.
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Worm gearboxes GS 50.3 – GS 250.3 Operation instructions