These instructions provide information about safe handling and operation of the manual valve gear.
If you require additional assistance, please contact the manufacturer or manufacturer's representative.
Addresses and phone numbers are printed on the back cover.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
6 MG 71 en3
1GENERAL
1.1Preface
The gearbox of the M-series is a quarter turn gearbox
intended to be used for the manual operation of valves (e.g.
butterfly valves) in pipelines.
NB. This manual is valid only for the standard M-series
gearboxes of Metso. For special versions, specifications and
model can differ.
Metso is not responsible for any damage caused by incorrect use of the gearbox.
1.2Technical data
Specifications
The maximum allowable input and output torque are listed
in the Table 1.
Table 1 Connection data of the gearbox
Gearbox
type
M07F05-F07-F1029330
M10F05-F07-F1043500
M12F10-F12831000
M14F10-F12-F14-F161522000
M15 F10-F12-F14-F161713250
M16F16-F251364500
M25 F16-F253058400
This gearbox is applicable to valve shafts with keyway only.
For more specified information, you can contact our sales
departement.
Connection Valve Max. Torque [Nm]
ISO 5211/1InputOutput
1.3Handling and safety precautions
Be sure to read and understand this manual before installation and use of our gearboxes.
Storage
The gearboxes need to be stored in a safe way to avoid accidents. Also avoid storage in areas subjected to high temperature extremes and /or areas subjected to large
amounts of humidity and dust.
Handling
Never drop the gearbox or otherwise subject it to strong
impact.
Correct use
Prior to installation, be sure the gearbox will NOT be overloaded during normal use. For this, convince yourself the
valve size and needed openeing torque do not exceed the
values given for the gearbox. For the maximum allowable
torque on the gearbox, see Table 1.
Installation and operating
Not observing the rules as stated in this manual, can lead to
damage and / or personal injuries. The qualified personel
must be fully aware of the instructions as descibed in this
manual.
Only when the instructions are observed, correct operation
of the gearboxes can be guaranteed.
Disposal
Never refuse a gearbox at a general disposal unit. The gearbox has to be offered to a disposal depot for recycling. The
iron parts can be used for recycling. The seals are of nitrile
and can be used for plastic recycling.
The grease may not be discharged to sewer- or surface
water. It has to be disposed according to local regulations
for incineration.
1.4ATEX
Your gearbox can be supplied with a label with following
markings:
This means that the gearbox meets the ATEX-directive 94/
9/EG
This product is fabricated conform the procedure related to
internal control of production with regards to the safety
aspects.
This product meets the requirements for explosion prevention
In a potential explosive surrounding, other than in mines,
With a high level of safety, based on normal operation and
anticipated risks
Suitable for a possible explosive atmosphere caused by
gases, vapours, mists of air/dust mixtures
Safety obtained by constructive solutions.
2INSTALLATION
2.1Mounting to the valve
Following description applies to standard type gearboxes.
1. The gearbox is standard delivered in the closed position.
2. It is recommended to mount a handwheel on the input
shaft before assembling the gearbox to the valve,
Figure 1.
3. Check if the boltcircle of the flanges (of gearbox and
valve) coincide. Also check if the valve stem and the
bore of the gearbox match.
4. Make sure the valve is in the closed position. If not, close
the valve before continuing.
5. Check if the gearbox is in fully closed position by turning the handwheel clockwise.
46 MG 71 en
6. In case of use of studbolts for fixing the gearbox to the
valve, it is recommended to screw them into the bottomflange of the gearbox before mounting the gearbox
on top of the valve.
7. Coat the valve stem and outer surface of the bushing (2)
and actuator bore with a suitable grease to aid fitting. The
plate (21) should be installed, when the bushing (2) is used,
between the valve flange mounting face. This plate locks
up the insert.
8. Mount the gearbox perpendicular to the valve (see
Figure 2).
9. Fix the gearbox to the valve with nut and ring. In case of
use of bolts, for the maximum screwdepth, see Table 2.
For tightening, refer to standard VDI 2230.
Table 2Max. screw depths
MountingF05F07F10F12F14F16F25
Fig. 1Mounting handwheel
Max. screw depth 8 11 13 16 18 18 18
10. The assembly is now ready for adjustment (see Chapter
2.2).
Depends on constructionDepends on construction
13478
21
2
Lubrication around Cortec VCI-369 or suitable grease
Fig. 2Gearbox perpendicular to the valve
2.2Adjustment of the setscrews
The gearbox is mounted on top of valve (see installation).
1. Close the valve totally, by turning the handwheel clockwise.
2. The valve position is indicated by the arrow on the position indicator.
3. Remove the plastic caps from the setscrews.
4. When the fully closed position can not be achieved, loosen
the setscrew-close (see Figure 3) by turning them counterclockwise. Continue turning the handwheel until the
valve is totally closed. Please note, that the butterfly valves
need to be closed using a given torque, see the tables in a
relevant valve manual.
M-SERIES WITHOUT INSERT
A - A
A
A
M-SERIES WITH INSERT
(PART NO. 2)
A - A
Note:
Part 2 depends on model and
part 21 must be mounted only
together with part 2.
5. Screw the set-screw back into the gearbox (by turning
clockwise) until blocked. Secure the setscrew– close
with the nut.
6. Open the valve by turning the handwheel counterclockwise.
7. When it can not be achieved to open the valve totally
(90°), loosen the setscrew-open (see Figure 3) by turning
it counterclockwise. Continue turning the handwheel
until the valve is totally opened.
8. Screw the set-screw back into the gearbox (by turning
clockwise) until blocked. Secure the setscrew– open
with the nut.
9. Close the valve with the handwheel
6 MG 71 en5
Fig. 3Gearbox setscrew adjustment
10. Put the plastic caps back on the setscrews.
11. Adjustment completed.
3OPERATING INSTRUCTIONS
The series M gears are manually operated quarterturn gearboxes made of cast iron.
The maximum allowable input- and output torques are
mentioned in Chapter 1.2.
1. The gearbox is manually operated by handwheel.
2. For opening the valve, the handwheel is turned counterclockwise. Closing is clockwise.
3. Stop turning when the required valveposition is achieved. The number of turns needed from totally open to
totally close the valve is in Table 3.
4. The valveposition is indicated by the position indicator
on top of the gearbox.
5. When the valve can not be totally opened (or closed),
first detect and solve the cause of malfunction.
6. In case of malfunction of the gearbox, this one has to be
replaced (see chapter installation for dismounting).
Return the gearbox to your supplier for repair.
7. When you do the repair in house, all replacement parts
must be obtained from the manufacturer to assure proper operation of the gearbox.
8. The gearbox is self-braking. Therefore no fixation needs
to be installed to retain the valve position.
9. When the fault is repaired, turn the handwheel until blocked.
10. The system is ready for use.
Fig. 4Gearbox, series M
4MAINTENANCE
Under normal conditions, the gearbox is maintenance free.
The series M gearboxes can be used at ambient temperatures from –20 to +120 °C.
The standard gearbox reaches IP67 (dust- and waterspray
proof). Cleaning can be done with a waterhose, not a high
pressure waterjet.