AUMA GST 10.1 Administrator Guide

Multi-turn gearboxes
Spur gearboxes
GST 10.1 – 40.1
Operation instructions

Table of contents Page
1. Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Range of application 3
1.2 Maintenance 3
1.3 Warnings and notes 3
2. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Transport, storage and packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Transport 6
3.2 Storage 6
3.3 Packaging 6
4. Fitting the handwheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Mounting multi-turn actuators SA/SAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. Mounting to valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7. Operation of valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8. Enclosure protection IP 68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9.1 General references 12
9.2 Change of grease 13
10. Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
12. Spare parts list Spur gearboxes GST 10.1 – GST 16.1 . . . . . . . . . . . . . . . . . . . . 16
13. Spur gearboxes GST 25.1 – GST 40.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
14. Declaration of Conformity and Declaration of Incorporation. . . . . . . . . . . . . . . . . 20
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
Spur gearboxes GST 10.1 – GST 40.1 Operation instructions
Scope of these instructions: These instructions apply to multi-turn gearboxes of the type range:
GST 10.1 – GST 40.1.

1. Safety instructions
1.1 Range of application AUMA spur gearboxes GST 10.1 – GST 40.1 are used for the operation of
valves (e.g. gate valves and globe valves).
They are designed for manual operation as well as motor operation in
conjunction with electric actuators.
For other applications, please consult AUMA. The manufacturer is not liable
for any possible damage resulting from use in other than the designated
applications. Such risk lies entirely with the user.
Observance of these operation instructions is considered as part of the
designated use.
Explosion-proof products are specially marked. The service conditions
mentioned in these operation instructions and in the technical data sheet
have to be respected during use. Other service conditions require explicit
and written confirmation by the manufacturer.
1.2 Maintenance The maintenance instructions (refer to page 13) must be observed, other-
wise a safe operation of the spur gearbox is no longer guaranteed.
1.3 Warnings and notes Failure to observe the warnings and notes may lead to serious injuries or
damage. Qualified personnel must be thoroughly familiar with all warnings
and notes in these operation instructions.
Correct transport, proper storage, mounting and installation, as well as
careful commissioning are essential to ensure a trouble-free and safe oper-
ation.
The following references draw special attention to safety-relevant proce-
dures in these operation instructions. Each is marked by the appropriate
pictograph.
This pictograph means: Note!
“Note” marks activities or procedures which have major influence on the
correct operation. Non-observance of these notes may lead to consequen-
tial damage.
This pictograph means: Warning!
“Warning” marks activities or procedures which, if not carried out correctly,
can affect the safety of persons or material.
3
Operation instructions Spur gearboxes GST 10.1 – GST 40.1

2. Technical data
Features and functions
Type of duty Short-time duty S2 - 15 min. (open-close duty)
Intermittent duty S4 - 25 % (modulating duty)
Direction of rotation Standard: Clockwise rotation at input shaft results in clockwise rotation at output shaft
Option: GST 10.1 – GST 30.1
Reversal of rotation direction using a reversing gearbox GW 14.1
Stages One stage: GST 10.1 – GST 16.1
Double stage:GST 25.1 – GST 40.1
Input shaft GST 10.1 - GST 40.1:
For standard reduction ratios, the input shaft is made of stainless steel.
Exceptions: GST 16.1 5.6 : 1
GST 40.1 22 : 1 und 16 : 1
Standard: Cylindrical with parallel key according to DIN 6885.1
Option1): Square - tapered (DIN 3233)
- cylindrical
Output torques
Operation
Motor operation With electric multi-turn actuator, directly
flanges for mounting the multi-turn actuator, refer to separate technical data sheets.
Manual operation Standard: Via handwheel, directly
Option: Remote extension shaft (not contained within the AUMA product range)
Valve attachment
Output drive types A, B1, B2, B3, B4 according to EN ISO 5210
A, B, D, E according to DIN 3210
C according to DIN 3338
Special output drives: AF, AK, AG, IB1, IB3, IB4
1) For size, please contact AUMA
2) At max. output torque
3) Conversion factor for output torque to input torque
Spur gearboxes GST 10.1 – GST 40.1 Operation instructions
4
Type Output torque Reduction ratio Input torque 2) Factor3)
Nominal
torque
max. Nm
Modulating
torque
max. Nm
Nominal
torque
Nm
Modulating
torque
Nm
GST 10.1 120 60
1 : 1 135 66 0.9
1.4 : 1 95 46 1.3
2 : 1 67 33 1.8
GST 14.1 250 120
1.4 : 1 198 92 1.3
2 : 1 139 66 1.8
2.8 : 1 99 48 2.5
GST 14.5 500 200
2 : 1 278 111 1.8
2.8 : 1 198 80 2.5
4 : 1 139 55 3.6
GST 16.1 1,000 400
2.8 : 1 397 160 2.5
4 : 1 278 111 3.6
5.6 : 1 198 80 5.0
GST 25.1 2,000 800
4 : 1 556 222 3.6
5.6 : 1 397 160 5.0
8 : 1 278 111 7.2
GST 30.1 4,000 1,600
5.6 : 1 794 320 5.0
8 : 1 556 222 7.2
11 : 1 404 162 9.9
GST 35.1 8,000 –
8 : 1 1,111 – 7.2
11 : 1 808 – 9.9
16 : 1 556 – 14.4
GST 40.1 16,000 –
11 : 1 1,616 – 9.9
16 : 1 1,111 – 14.4
22 : 1 808 – 19.8
Type GST 10.1 GST 14.1 GST 14.5 GST 16.1 GST 25.1 GST 30.1 GST 35.1 GST 40.1
Handwheel
mm 200 315
(250) 315 400 500 500 500 500

Service conditions
Mounting position Any position
Enclosure protection according
to EN 60 529 Standard: IP 67
Options: IP 68 (also refer to page 12)
Corrosion protection Standard: KN Suitable for installation in industrial units,
in water or power plants with a low pollutant concentration
Options: KS Suitable for installation in occasionally or permanently aggressive
atmosphere with a moderate pollutant concentration
(e.g. wastewater treatment plants, chemical industry)
KX Suitable for installation in extremely aggressive atmosphere with
high humidity and high pollutant concentration
Finish coating Standard: Two-component iron-mica combination
Colour Standard: AUMA silver-grey (similar to RAL 7037) if finish-painted
Option: Other colours on request
Ambient temperature Standard: –40 °C to +80 °C
Options: –60 °C to + 60 °C (extreme low temperature), version EL
– 0 °C to +120 °C (high temperature), version H
Lifetime Open-close duty: Operations (OPEN - CLOSE - OPEN) with 30 turns per stroke
GST 10.1: 20,000 operations
GST 14.1 – 16.1: 15,000 operations
GST 25.1 – 30.1: 10,000 operations
GST 35.1 – 40.1: 5,000 operations
Modulating duty4):
GST 10.1: 5.0 million modulating steps
GST 14.1 – 16.1: 3.5 million modulating steps
GST 25.1 – 30.1: 2.5 million modulating steps
Accessories
Limit switching Limit switching device WSH for manually operated valves. For the signalling of intermediate
and end positions (refer to separate data sheet).
Reversing gearboxes Reversing gearbox GW for reversing the rotation direction for manual and motor operation
Special features for use in potentially explosive atmospheres
Explosion protection II2G c IIC T4 in compliance with ATEX 94/9/EC
Type of duty5) During open-close duty:
Short-time duty S2 - 15 min. at 50 % of maximum nominal output torque up to GST 14.5
and at 35 % of maximum nominal output torque from GST 16.1
During modulating duty:
Intermittent duty S4 - 25 % at maximum modulating torque
Ambient temperature Standard: –40 °C to +60 °C
Options: –60 °C to +60 °C (extreme low temperature)
Combinations with actuators SAExC at ambient temperatures > 40 °C with special sizing.
Further information
Reference documents Product description Spur gearboxes GST 10.1 – GST 40.1
Dimension sheet GST 10.1 – GST 40.1
Technical data GST 10.1 – GST 40.1
Technical data SA/SAR
Technical data GW
Technical data WSH
4) The lifetime for modulating duty depends on the load and the number of starts. A high starting frequency will rarely improve the modulating accuracy. To reach
the longest possible maintenance and fault-free operation time, the number of starts per hour chosen should be as low as permissible for the process
5) The type of duty must not be exceeded.
Operation instructions Spur gearboxes GST 10.1 – GST 40.1
5

3. Transport, storage and packaging
3.1 Transport .Transport to place of installation in sturdy packing.
.If mounted together with actuator:
Attach ropes or hooks for the purpose of lifting by hoist only to the gearbox
and not to the actuator.
3.2 Storage .Store in well-ventilated, dry room.
.Protect against floor dampness by storage on a shelf or on a
wooden pallet.
.Cover to protect against dust and dirt.
.Apply suitable corrosion protection agent to uncoated surfaces.
In case gearboxes are to be stored for a long period (more than 6 months),
the following points must be observed additionally:
.Prior to storage: Protect uncoated surfaces, in particular the output drive
parts and mounting surface, with long-term corrosion protection agent.
.Check for corrosion approximately every 6 months. If first signs of corro-
sion show, apply new corrosion protection.
3.3 Packaging Our products are protected by special packaging for the transport ex works.
The packaging consists of environmentally friendly materials which can
easily be separated and recycled.
For the disposal of the packaging material, we recommend recycling and
collection centres.
We use the following packaging materials:
Wooden material boards (OSB)/cardboard/paper/PE film
4. Fitting the handwheel For gearboxes designed for manual operation, the handwheel is supplied
separately. Fitting is done on site according to figure 1.
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Spur gearboxes GST 10.1 – GST 40.1 Operation instructions
Figure 1: Handwheel
Ball handle
(option)
Spacer
(partly required)
Circlip
Handwheel
Gearbox input shaft
Circlip
Spacer
(partly required)

5. Mounting multi-turn actuators SA/SAR
Mounting the multi-turn actuator:
.Thoroughly degrease the faces of the bearing flange at actuator and of
the input flange at spur gearbox.
.Place the multi-turn actuator on the spur gearbox.
.Ensure that the spigot mates uniformly in the recess and that the
mounting faces are in complete contact.
.Fasten actuator with screws (see table 1) at the flange of the spur
gearbox.
.Fasten screws crosswise with a torque according to table 2.
Do not attach ropes or hooks for the purpose of lifting the
actuator by hoist to the handwheel. If multi-turn actuator is
mounted on gearbox, attach ropes or hooks for the purpose
of lifting by hoist to gearbox and not to multi-turn actuator.
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Operation instructions Spur gearboxes GST 10.1 – GST 40.1
Figure 2: Mounting multi-turn actuators onto spur gearboxes
Input flange
Bearing flange
Gearbox SA(R) 07.5-F10/G0 SA(R) 10.1-F10/G0 SA(R) 14.1-F14/G1/2
Screw Pcs. Screw Pcs. Screw Pcs.
GST 10.1 M 10 x 25 4 M 10 x 25 4 M 16 x 40 4
GST 14.1 M 10 x 25 4 M 16 x 40 4
GST 14.5 M 10 x 25 4 M 16 x 40 4
GST 16.1 M 16 x 40 4
GST 25.1 M 16 x 40 4
Gearbox SA(R) 14.5-F14/G1/2 SA(R) 16.1-F16/G3 SA(R) 25.1-F25/G4
Screw Pcs. Screw Pcs. Screw Pcs.
GST 14.5 M 16 x 40 4
GST 16.1 M 16 x 40 4
GST 25.1 M 16 x 40 4 M 20 x 50 4
GST 30.1 M 16 x 40 4 M 20 x 50 4
GST 35.1 M 16 x 40 4 M 20 x 50 4 M 16 x 50 8
GST 40.1 M 20 x 50 4 M 16 x 50 8
Table 1: screws for mounting AUMA multi-turn actuators on spur gearbox

6. Mounting to valve The gearboxes can be operated in any mounting position.
.Prior to mounting, the gearbox must be checked for dam-
age. Damaged parts must be replaced by original spare
parts.
.After mounting to valve, touch up any possible damage to
paint finish.
Mount gearbox to valve (with output drive types B1 – B4 or E)
.Check whether mounting flanges match.
.Check whether bore and keyway match the input shaft of the valve.
.Apply a small quantity of grease to input shaft of valve..
.Fit gearbox.
Information: Ensure that the spigot fits uniformly in the recess and
that the mounting faces are in complete contact
.Fasten with screws of minimum quality 8.8 according to table 2.
Information: We recommend applying liquid thread sealing material to
the screws to avoid contact corrosion.
.Fasten screws crosswise to a torque according to table 2.
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Spur gearboxes GST 10.1 – GST 40.1 Operation instructions
Figure 3
Output drive type B1/B2
Plug sleeve Output drive type B3/B4
Bore with keyway
Thread
Fastening torque TA[Nm]
Strength class
8.8 A2-70/A4-70 A2-80/A4-80
M8251824
M10 50 36 48
M12 87 61 82
M16 214 150 200
M20 431 294 392
M30 1,489 564 –
M36 2,594 – –
Table 2: Fastening torques for screws

Output drive type A
Application:
.Output drive for rising, non-rotating valve stem
.Suitable for accepting thrust
Finish machining of stem nut
This working stop is only required if stem nut is supplied unbored or with pilot bore.
The output drive flange does not have to be removed from the gearbox.
.Remove spigot ring (80.2, figure 4) from output drive.
.Remove stem nut (80.3) together with bearings (80.01 and 80.02).
.Remove bearing races (80.02) and bearing rims (80.01) from stem nut (80.3).
.Bore and drill stem nut (80.03) and cut thread.
Information: When fixing in the chuck, make sure stem nut runs true!
.Clean the machined stem nut (80.3).
.Apply sufficient Lithium soap EP multi-purpose grease to bearing rims
(80.01) and bearing races (80.02) ensuring that all hollow spaces are
filled with grease.
.Place greased bearing rims (80.1) and bearing races (80.02) on stem nut (80.3).
.Re-insert stem nut (80.3) with bearings (80.01 and 80.02) into output drive.
Information: Ensure that dogs or splines are placed correctly in the
keyway of the hollow shaft.
.Screw in spigot ring (80.2) until it is firm against the shoulder.
Mount gearbox (with output drive type A) to valve
[1] Valve stem
[2] Output drive type A
[3] Screws to actuator
[4] Valve flange
[5] Screws to output drive
9
Operation instructions Spur gearboxes GST 10.1 – GST 40.1
Figure 4
80.3
80.2
80.01/80.02
Output drive type A
Stem nut
Figure 5

.If the output drive type A is already mounted to the gearbox: Loosen
screws [3] and remove output drive type A [2].
.Check if the flange of output drive type A matches the valve flange [4].
.Apply a small quantity of grease to the valve stem [1].
.Place output drive type A on the valve stem and turn until it is flush on the
valve flange.
.Turn output drive type A until alignment of the fixing holes.
.Screw in fastening screws [5], however do not completely tighten.
.Fit gearbox on the valve stem so that the stem nut dogs engage into the
output socket.
The flanges are flush with each other if properly engaged.
.Adjust gearbox until alignment of the fixing holes.
.Fasten gearbox with screws [3].
.Fasten screws [3] crosswise with a torque according to table 2.
.Turn gearbox and actuator with handwheel in direction OPEN until valve
flange and output drive type A are firmly placed together.
.Tighten fastening screws [5] between valve and output drive type A
crosswise applying a torque according to table 2.
Protection tube for rising valve stem
.Seal thread of protection tube with hemp, Teflon tape, or thread sealing
material.
.Screw protection tube (1) into thread (figure 6) and tighten it firmly.
.Push down the sealing (2) to the housing.
.Check whether cap (3) is available and without damage.
.
10
Spur gearboxes GST 10.1 – GST 40.1 Operation instructions
3
1
2
Figure 6: Protection tube for rising valve stem
Ouput
drive A 07.2 A 10.2 A 14.2 A 16.2 A 25.2 A 30.2 A 35.2 A 40.2
Qty1) 1.5 g 2 g 3 g 5 g 10 g 14 g 20 g 25 g
1) For grease with density ρ= 0.9 kg/dm³
Table 3: Grease quantities bearings output drive type A

7. Operation of valves
The max. output torque (refer to technical data, page 4 or name plate)
refers to the peak values and should not be applied over the whole travel.
Clockwise rotation at input shaft results in clockwise rotation at output drive
For motor operation:
.Observe operation instructions pertaining to multi-turn actuator.
.The setting of the torque switching within the multi-turn actuator may not
exceed the max. permissible input torque for both directions (refer to tech-
nical data, page 4, or name plate).
.Set the torque switching within the multi-turn actuator to the following
value to prevent any damage to the valve:
TValve
TTorque switch =Factor
Factor = Conversion factor from output torque to input torque.
Refer to values in technical data, page 4.
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Operation instructions Spur gearboxes GST 10.1 – GST 40.1

8. Enclosure protection IP 68
Definition According to EN 60529, the conditions for meeting the requirements of
enclosure protection IP 68 are to be agreed between manufacturer and
user.
AUMA gearboxes in enclosure protection IP 68 fulfil the following require-
ments in compliance with AUMA definitions:
.Head of water max. 6 m.
If submersed in other media, additional measures for corrosion protection
may be necessary; please consult AUMA. Submersion in aggressive media,
e.g. acids or alkaline solutions, is not permitted.
Inspection AUMA gearboxes in enclosure protection IP 68 undergo a routine testing for
tightness in the factory.
After submersion .Check gearbox.
.In case of ingress of water, dry actuator correctly and check for proper
function.
Notes .The enclosure protection IP 68 refers to the interior of the gearbox.
.If the gearboxes are likely to be repeatedly submersed, a higher corrosion
protection KS or KX is required.
.We strongly recommend to select the higher corrosion protection KS or
KX for gearboxes for buried service.
.Use suitable sealing material between valve flange and gearbox.
.Stem protection tubes and telescopic protection tubes should not be used
during submersion, instead use a screw plug made of aluminium.
.When using output drive types A and AF (stem nut), it cannot be
prevented that during submersion water enters the bore of the hollow shaft
along the thread of the valve stem. This leads to corrosion. The water also
enters the thrust bearings of output drive type A, causing corrosion and
damage of the bearings. The output drive types A and AF should therefore
not be used for gearboxes in enclosure protection IP 68.
.For submersion in water, AUMA recommends to use grease suitable for
use in drinking water.
.For continuous submersion, the seals should be changed at shorter inter-
vals.
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Spur gearboxes GST 10.1 – GST 40.1 Operation instructions

9. Maintenance
9.1 General references After commissioning, check gearbox for damage to paint finish.
Do a thorough touch-up to prevent corrosion.
Original paint in small quantities can be supplied by AUMA.
AUMA gearboxes require only very little maintenance.
To ensure that the gearbox is always ready to operate, we recommend –
provided that on an average not more than 10 operations are performed per
year – the following measures:
.Approximately six months after commissioning and then every year check
screws between multi-turn actuator, gearbox, and valve for tightness. If
required, tighten applying the torques given in table 2 (page 8).
.Perform a test run as well as a visual inspection for grease leakage every
six months.
.Carry out a detailed functional test for each gearbox every 5 years.
Record the results for future reference.
.For gearboxes permanently exposed to ambient temperatures above
40 °C, maintenance must be performed at shorter intervals.
.For gearboxes with output drive type A: at intervals of approx. six months
from commissioning, press in Lithium soap EP multi-purpose grease on
mineral oil base at the grease nipple with grease gun (for quantity, refer to
table 3, page 10).
Seals:
The seals must be changed when changing the grease.
Seal kits may be obtained from AUMA.
Grease:
A 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
.Only original AUMA grease must be used.
.For the grease type, refer to the name plate: Standard F1
.Lubricants should not be mixed.
The removed lubricant and the cleaning agent used must be
disposed of according to the relevant regulations.
For safe operation of explosion-proof products, the gear
housing has to be lubricated in compliance with the
manuacturer specifications. In the event of lubricant loss,
repair measures habe to be initiated without delay.
13
Operation instructions Spur gearboxes GST 10.1 – GST 40.1
GST 10.1 14.1 14.5 16.1 25.1 30.1 35.1 40.1
Qty dm³ 0.8 1.54 1.54 3.1 6.3 12.1 22.0 22.2
Weight1) kg 0.7 1.4 1.4 2.8 5.7 11.0 20.0 20.2
1) for ρ= approx. 0.9 kg/dm3
Table 4: Grease quantities for spur gearboxes

9.2 Change of grease .For gearboxes with multi-turn actuator: Remove multi-turn actuator.
.Remove gearbox from the valve:
During this time, the valve/pipeline must not be under pres-
sure!
.Mark position of the gearbox on the valve, loosen connecting screws to
the valve and remove the gearbox.
Remove old grease:
Grease type, see name plate; grease quantities, see page 13, table 4.
The numbers used in the following text refer to the spare parts list(s) of
these operation instructions.
.Remove screws at bearing flange (002.0).
.Remove mounting flange assembly with hollow shaft (003.0) from the
housing.
.Remove old grease completely from the housing and the individual parts
and clean gear housing. For this purpose, kerosene or a similar cleaning
agent may be used.
.Replace seals S1 by new ones.
.Clean mounting faces at housing and bearing flange and apply a small
quantity of grease.
.Mount bearing flange (002.0) with hollow shaft (003.0) into housing, whilst
paying attention to the O-ring S1 (006 or 008) at the bearing flange and
O-ring S1 in the housing.
Screw in screws with and fasten them evenly crosswise to the appropriate
torque according to table 2, page 8.
Fill with new grease:
.Remove screws at bearing flange of the input shaft (010.0-1 or 010.0-2).
.Remove bearing flange.
.Fill with new grease.
.Clean mounting faces at housing and bearing flange and apply a small
quantity of grease.
.Fit bearing flange (010.0-1 or 010.0-2) with new O-ring S1. Screw in
screws with and fasten them evenly crosswise to the appropriate torque
according to table 2, page 8.
After maintenance:
.Fasten gearbox to valve again.
.If applicable, mount multi-turn actuator.
.For gearboxes with multi-turn actuator, check the setting of the limit
switching according to the operation instructions for multi-turn actuators; if
required, re-set.
.Perform test run to ensure the proper function.
.Check the 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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Spur gearboxes GST 10.1 – GST 40.1 Operation instructions

10. Disposal and recycling
AUMA gearboxes have an extremely long lifetime. However, they have to be
replaced at one point in time.
Our gearboxes have a modular design and may therefore easily be disas-
sembled, separated and sorted according to materials, i.e.:
.various metals
.plastics
.greases and oils
The following generally applies:
.Collect greases and oils during disassembly. As a rule, these substances
are hazardous to water and must not be released into the environment.
.Arrange for controlled waste disposal of the disassembled material or for
separate recycling according to materials.
.Observe the national regulations for waste disposal.
11. Service AUMA offers extensive services such as maintenance and inspection for
gearboxes. Addresses of AUMA offices and representatives can be found on
page 22 and on the Internet (www.auma.com).
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Operation instructions Spur gearboxes GST 10.1 – GST 40.1

12. Spare parts list Spur gearboxes GST 10.1 – GST 16.1
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Spur gearboxes GST 10.1 – GST 40.1 Operation instructions

Note: Please state type and commission no. of the device (see name plate) when ordering spare parts. Only original
AUMA spare parts may be used.
Delivered spare parts may slightly vary from the representation in these instructions.
17
Operation instructions Spur gearboxes GST 10.1 – GST 40.1
001.0 Housing Sub-assembly
002.0 Bearing flange Sub-assembly
003.0 Hollow shaft
004.0 Intermediate stage Sub-assembly
004.1 Intermediate wheel
005.0 Input shaft Sub-assembly
010.0-1 Input shaft bearing flange Sub-assembly
010.0-2 Input shaft bearing flange with protection cover Sub-assembly
511.0 Screw plug Sub-assembly
512.0 Flange for actuator Sub-assembly
513.1 Grub screw
514.0 Output drive form A (without stem nut) Sub-assembly
514.1 Axial needle roller bearing Sub-assembly
516.1 Output drive shaft D
535.1 Snap ring
549.1 Output socket B3/B4/E
551.1 Parallel key
568.1 Stem protection tube (without cap)
568.2 Cap for stem protection tube
568.3 V-seal
574.1 Radial seal output drive A for ISO flange
575.1 Stem nut type A
S1 Seal kit Set
No. Designation Type

13. Spur gearboxes GST 25.1 – GST 40.1
18
Spur gearboxes GST 10.1 – GST 40.1 Operation instructions

Note: Please state type and commission no. of the device (see name plate) when ordering spare parts. Only original
AUMA spare parts may be used.
Delivered spare parts may slightly vary from the representation in these instructions.
19
Operation instructions Spur gearboxes GST 10.1 – GST 40.1
001.0 Housing Sub-assembly
001.1 Ring nut
002.0 Bearing flange Sub-assembly
003.0 Hollow shaft Sub-assembly
004.0 Intermediate stage Sub-assembly
004.1 Intermediate wheel
005.0 Input shaft Sub-assembly
010.0-1 Input shaft bearing flange Sub-assembly
010.0-2 Input shaft bearing flange with protection cover Sub-assembly
511.0 Screw plug Sub-assembly
512.0 Flange for actuator Sub-assembly
513.1 Grub screw
514.0 Output drive form A (without stem nut) Sub-assembly
514.1 Axial needle roller bearing, from GST 35.1: axial cylinder roller bearing Sub-assembly
516.1 Output drive shaft D
535.1 Snap ring
549.1 Output socket B3/B4/E
551.1 Parallel key
568.1 Stem protection tube
568.2 Cap for stem protection tube
568.3 V-seal
574.1 Radial seal output drive A for ISO flange
575.1 Stem nut type A
S1 Seal kit Set
No. Designation Type

14. Declaration of Conformity and Declaration of Incorporation
20
Spur gearboxes GST 10.1 – GST 40.1 Operation instructions