Montanari M73ES Quick start guide

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REV: 3_06/2019
MANUALS
M73ES
INSTALLATION, USE AND MAINTENANCE
GEARBOXES FOR ESCALATORS
AND MOVING WALKWAYS

Thank you for choosing a Montanari gearbox.
For over 45 years, Montanari Group has been focused on
providing its customers with the best traction machines and
components for lifts and escalators.
We are proud to have you as a customer and user of the
Montanari traction machines, and we are confident that we
can work together for a long time.
Thanks again for your choice.
Massimo Montanari
CEO of Montanari Group
www.montanarigiulio.com

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CONTENTS
1. GENERAL INFORMATION............................................................................ 7
1.1 Introduction................................................................................................................................7
1.2 Copyright....................................................................................................................................7
1.3 Symbols used........................................................................................................................... 8
2. SAFETY .......................................................................................................... 9
2.1 Intended use............................................................................................................................. 9
2.2 User's obligations.................................................................................................................... 9
2.3 Environmental protection.....................................................................................................10
2.4 Specific hazards .....................................................................................................................10
3. IDENTIFICATION AND DATA...................................................................... 11
3.1 Identification plate...................................................................................................................11
3.2 Technical data .........................................................................................................................12
3.3 Other data ................................................................................................................................12
3.4 Dimensions ..............................................................................................................................13
3.5 Oil quantity...............................................................................................................................14
4. TRANSPORT AND STORAGE.................................................................... 15
4.1 Handling ...................................................................................................................................15
4.2 Storage......................................................................................................................................16
4.3 Standard corrosion protection............................................................................................16
5. DESCRIPTION ............................................................................................. 18
5.1 General description ...............................................................................................................18
5.2 Main components...................................................................................................................18
5.3 Oil plugs and indicators........................................................................................................19
6. INSTALLATION ............................................................................................20
6.1 General installation information ........................................................................................20
6.2 Installation surface................................................................................................................20
6.3 Installation procedure ..........................................................................................................20
7. OPERATION.................................................................................................22
7.1 Preliminary operations.........................................................................................................22
7.2 Connections............................................................................................................................22
7.3 Additional components........................................................................................................22
7.4 General operation information ..........................................................................................23

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8. TROUBLESHOOTING .................................................................................24
8.1 General information..............................................................................................................24
8.2 Problems, causes and solutions........................................................................................24
9. MAINTENANCE AND REPAIR ...................................................................25
9.1 General information..............................................................................................................25
9.2 Maintenance table ................................................................................................................25
9.3 Description of maintenance activities..............................................................................26
9.4 Lubricants................................................................................................................................ 27
10. SPARE PARTS..............................................................................................29
10.1 General information..............................................................................................................29
10.2 How to order spare parts....................................................................................................29
10.3 How to identify spare parts ................................................................................................29
10.4 Table 1 - Motor........................................................................................................................30
10.5 Table 2 - Brake........................................................................................................................31
10.6 Table 3 - Magnet....................................................................................................................32
10.7 Table 4 - Slow Shaft ..............................................................................................................33
10.8 Table 5 - Worm Shaft............................................................................................................34
11. DECLARATION OF INCORPORATION .....................................................36

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1. GENERAL INFORMATION
1.1 Introduction
These operating instructions are an integral part of the supplied gearbox and
must always be kept within easy reach for consultation.
All persons involved in the installation, operation, maintenance and repair of the
unit must have read and understood the instructions.
No liability is accepted for damage, breakage or accident caused by failure to
follow the instructions provided in this manual.
The Montanari M73ES gearbox described herein has been designed and manu-
factured in accordance with the recognized safety standards and the state of the
art technical development applied at the time of printing these instructions.
To make technical improvements, Montanari reserves the right, if deemed neces-
sary, to modify the units and accessories, preserving their essential characteristics
and improving eciency and safety.
1.2 Copyright
All rights to these operating instructions belong to Montanari Giulio & C. S.r.l.
The information in this manual may not be reproduced or used in an unauthorized
manner or made available to third parties without prior permission.
If you have any questions, please contact:
MONTANARI GROUP
HEADQUARTERS - MONTANARI GIULIO & C. S.r.l.
Via Bulgaria, 39 - 41122 - Modena - Italy
Phone: [phone] - Fax: [phone]
www.montanarigiulio.com
[email protected]

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TIP
This symbol indicates useful information before and during the installation
step.
This symbol indicates that safety measures must be taken to prevent
personal injury.
This symbol indicates that safety measures must be taken to prevent
damage to components.
!
!
1.3 Symbols used
Warning symbols used in this manual:

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2. SAFETY
2.1 Intended use
The Montanari M73ES gearbox has been manufactured in accordance with the
state of the art technology and is supplied ready for safe and reliable use. Any
modification by the user that may aect safety or reliability is prohibited; it is also
prohibited to tamper with devices or functions designed to prevent accidental
contact.
The Montanari M73ES gearbox must be used and operated in strict compliance
with the conditions set out in the supply contract.
It is forbidden to use the Montanari M73ES gearbox for activities other
than the one for which it was produced.
!
2.2 User's obligations
The operator must ensure that all persons involved in installation, operation, main-
tenance and repair have read and understood the supplied operating instructions
and have adapted to them in order to:
• Avoiding damage to property or persons
• Ensure safe and reliable operation of the unit
• Avoid breakage and environmental damage due to misuse.
In particular:
• During transport, assembly, installation, operation, maintenance and disman-
tling of the unit, the relevant environmental and safety standards must always
be complied with.
• The unit must only be used, maintained and repaired by authorized, properly
trained and qualified personnel.
• The gearbox must not be cleaned using high-pressure cleaning equipment.
• All work must be carried out with care and with due attention to safety.
• Any work on the unit should only be carried out when it is not in operation.
• The unit must be protected against accidental starting (e.g. by locking the key
switch or removing fuses from the power supply). A warning must be placed
on the starting switch to clearly indicate that work is in progress on the unit.
• No welding work must be carried out on the unit.
• The unit must not be used as a grounding point for welding operations.
Toothed gears and bearings can be irreparably damaged by welding.

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• If any changes are detected (e.g. overheating or unusual noise) during opera-
tion, the unit must be switched o immediately.
• Rotating components such as pinions and handwheels must be equipped
with appropriate guards to prevent contact.
• If the unit is intended for installation in plant or machinery, the manufacturer
of such plant or machinery must ensure that the standards, indications and
descriptions contained in these operating instructions are incorporated into
its own instructions.
• The information on the warning or identification plates must be complied with.
These plates must be kept clean and legible at all times. Missing plates must
be replaced.
All spare parts can be obtained from Montanari Group.
2.3 Environmental protection
• When replacing the oil, the used oil must be collected in suitable containers.
• Any oil leaks must be removed immediately.
• Used oil, protective agents, binders and oil-soaked cloths must be disposed
of in accordance with environmental legislation.
2.4 Specific hazards
Depending on the conditions of use, the surface of the unit can become very hot.
Danger of burning! When changing oil, take care to avoid burning with
boiling oil.
!

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3. IDENTIFICATION AND DATA
3.1 Identification plate
The following plate is axed to the unit.
Manufacturer
Manufacturer's
address
Model
Year of production
Serial number
Reduction ratio
Lubricant used
The data on the plate are:
• Manufacturer's data and logo
• Year and place of production
• Serial number
• Model
• Reduction ratio
• Type of lubricant used
Fig. 3.1

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3.2 Technical data
The following table shows the main technical data of the unit, depending on the
version.
(1) Solo argano / Gearbox only
3.3 Other data
Below is a table with other data.
Notes
Protection IP55
Operating temperature max. 40°C
Synthetic oil ISO VG460
Brake 220 V AC + Booster; 2x140 Nm
Versione Rapporto Vel. uscita Momento torc. max. Potenza Rendimento (1) Peso
Version Ratio Output
speed Max torque Power Eciency Weight
RPM Nm kW Full load kg
M73ES-5.5-6P 24.5 39.18 1099 5.5 0.85 285
M73ES-7.5-6P 24.5 39.18 1499 7.5 0.85 295

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3.4 Dimensions
The following drawing shows the overall dimensions.
Fig. 3.2

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3.5 Oil quantity
The amount of oil to fill the gearbox is shown in the following table.
Oil
Gearbox M73ES
Oil quantity (litres) 8

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4. TRANSPORT AND STORAGE
4.1 Handling
Only use lifting systems and equipment with adequate lifting capacity to
handle this product.
!
Dierent types of packaging can be used, depending on the size and means
of transport. Unless otherwise specified, the packaging complies with the HPE
guidelines.
Comply with the symbols on the packaging to prevent damage to property or
personal injury. Here are the meanings of the symbols that may appear on the
packaging.
Keep dry Handle with care
Upper side Do not use hooks
Fragile Center of gravity
Keep away from heat
sources
Attachment point
For lifting, use the two
eyebolts on the side of the
motor
Fig. 4.1

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Use only the specified eyebolts to handle the unit.
Do not use the threaded holes on the shaft ends to screw in eyebolts or
other fastening systems.
!
Ropes or chains must not come into contact with the handwheel during handling
operations.
The maximum slope that the machine can have during transport is 15°.
!
4.2 Storage
The gearbox must be stored in the position of use on a wooden base not subject
to vibrations, in a covered and sheltered place.
In particular, if the unit is stored outdoors, it should be carefully covered,
taking care that no moisture or other foreign matter can accumulate on it.
!
Supplies for special environmental conditions during transport (e.g. by
ship) and storage (climate, termites, etc.) must be contractually agreed.
!
4.3 Standard corrosion protection
The gearbox is initially filled with synthetic oil by the manufacturer for long-term
lubrication.
If oil filling has not been expressly agreed, the inside of the unit is treated
with protective agents. The treatment is sucient for normal transport
conditions and for a period of 6 months until the first start.
!
The coating is resistant to diluted acids, alkalis, oils, solvents, seawater, tropical
environments and temperatures up to 140°C.
The shaft ends are treated with anti-rust paint. They withstand seawater and trop-
ical conditions for a period of 12 months.

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Make sure that the paint is not damaged!
Any mechanical (scratches), chemical (acids, alkalis) and thermal (sparks,
welding residues) damage causes corrosion, which can aect the protec-
tive coating.
!
For longer storage periods (more than 24 months) a periodic inspection is recom-
mended and, if necessary, the restoration of the external and internal preservative
treatment.

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5. DESCRIPTION
5.1 General description
The M73ES Montanari is a gearbox with worm gear-crown unit equipped with a
chain sprocket located on the output shaft, driven by a three-phase motor through
a flexible coupling.
A dual action brake is installed on the unit to brake and stop the load.
The gearbox has exceptional characteristics of very low noise and high eciency.
The unit is not self-locking.
All toothed parts and roller bearings are supplied properly lubricated by immer-
sion.
5.2 Main components
The unit consists of the main groups as shown in the figure below.
Motor
Gearbox
Brake
Fig. 5.1

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5.3 Oil plugs and indicators
Below are the symbols used to identify the breather, the oil refill, the level indica-
tor and the drain.
Dipstick
Breather
Refill
(1) The vent hole can be closed during transport. In this case, the closing plug must
be replaced with the breather plug supplied with the unit.
(2⁾ The refill plug can be fitted with a dipstick.
Fig. 5.2
Drain

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6. INSTALLATION
6.1 General installation information
Assembly and installation must be carried out with great care by qualified and
trained personnel.
The manufacturer cannot be held responsible for damage caused by incorrect
assembly or incorrect installation.
Provide sucient space around the unit for installation to facilitate subsequent
maintenance and repair work.
Before starting work, make sure that adequate lifting and handling equipment is
available.
No welding work must be carried out on the unit.
The unit must not be used as a grounding point for welding operations. Toothed
gears and bearings can be irreparably damaged by welding.
All fixing points specified by the manufacturer must be used.
The air supply for cooling must not be prevented. It must also be possible to
check the oil level.
6.2 Installation surface
The installation surface must be uniform, level and horizontal.
The levelling tolerance is 0.2 mm.
The installation surface must be rigid and robust enough to withstand the forces
involved.
6.3 Installation procedure
• Remove the anti-corrosion paint layer from the shaft and contact surfaces
with a cleaning tool. The cleaning tool must not come into contact with the
shaft O-rings.
Ensure proper ventilation.
Do not smoke! Danger of explosion!
!
• Place the unit on the installation surface and secure it.
• Fixing screws and nuts must be tightened to the prescribed torque.
• Use bolts with a minimum strength class of 8.8.
• Do not force or hit the fixings to position them; this could damage the bear-
ings, rings, etc.