AEROTECNICA COLTRI MCH-36 User manual

USE AND MAINTENANCE MANUAL
Hight pressure compressor for breathing air and technical gases
www.coltrisub.com

pag. 3
Use and maintenance manual MCH-36
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BS)ITALY
Tel. [phone] Fax. [phone]
www.coltrisub.it www.coltrisub.com
[email protected]
MCH-36
HIGH PRESSURE COMPRESSOR FOR BREATHING AIR AND TECHNICAL GASES
BEFORE USING THE COMPRESSOR READ THIS
MANUAL CAREFULLY
IMPORTANT:

pag. 4Use and maintenance manual
MCH-36
Dear Customer,
Thank you for choosing an AEROTECNICA COLTRI Srl compressor. This manual is
provided together with the compressor to aid you in the use of the machine and ensure that
your work produces the best possible results.
Please read all the instructions and information provided on the following pages. Ensure
that the manual is at the disposal of the personnel who will be using/managing the
compressor and carrying out any maintenance on it.
Should you require any clarification, when using the compressor for the first time or at
any other time it is used, please remember that AEROTECNICA COLTRI Srl is at your
complete disposal.
Should you need to contact us our fax number is: [phone]
For routine or unscheduled maintenance note that AEROTECNICA COLTRI Srl’s
international technical service is able to provide you with assistance and spare parts as and
when required.
To ensure that your requests are dealt with quickly the following information is provided:
Manufacturer’s data: AEROTECNICA COLTRI S.r.l.
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BRESCIA) - ITALY
Telefono : [phone] - [phone]
Fax [phone]
http://www.coltrisub.it - http://www.coltrisub.com
e-mail: [email protected]

pag. 5
Use and maintenance manual MCH-36
DECLARATION OF CONFORMITY
Italian DPR 459 of 24th July 1996, appendix II, part A
It is hereby declared that he machine model:
MCH-36
Serial n° year
complies with
the provisions of Italian DPR 459/96 as per EEC directives 89/392, 93/44 and 93/68
according to the specifications of the following harmonized standards:
EN 292-1 (‘91) - EN 292-2 (‘91) - EN 60204-1 (‘92) - ISO 3746 - ISO 11202
and also complies with
the provisions of Italian Dlgs 476/92 as per EEC directives 89/336 and 92/31 according to
the specifications of the following harmonized industrial environment standards:
EN 50081-2 (August 1993)
EN 50082-2 (March 1995)
DESENZANO DEL GARDA, date
Chairman of the
Board of Directors
Carlo Coltri
This manual is the property of AEROTECNICA COLTRI S.r.l. Reproduction, whole or partial, is forbidden

Contents
pag. 6Use and maintenance manual
MCH-36
CHAPTER 1 - GENERAL 9
1.1 Preliminary information 9
1.2 Required operator training 10
1.3 Important information for the user 10
1.4 Foreword 11
1.5 Warranty 11
1.6 Assistance 12
1.7 Responsibility 12
1.8 Purpose of the machine 13
1.9 Where the machine may be used 15
1.10 Running in and testing the compressor 15
CHAPTER 2 - BASIC INFORMATION ON THE COMPRESSOR 16
2.1 Description of the compressor 16
2.2 Identifying the compressor 16
2.3 General instructions 17
CHAPTER 3 - SAFETY REGULATIONS 18
3.1 General safety rules 18
3.1.1 Know the machine 18
3.1.2 Wear protective clothing 18
3.1.3 Keep emergency equipment nearby 18
3.1.4 Warn others when doing checks/maintenance 18
3.2 General precautions 19
3.2.1 Important safety information 20
3.2.2 Accident prevent 20
3.2.3 Working safety 20
3.2.4 Safety info labels: location 21
3.2.5 Safety info labels: description 21
3.2.6 Residual risk zones 23
3.3 General safety regulations 24
3.3.1 Care and maintenance 24
3.3.2 Fire extinguishers and first aid 24
3.4 Maintenance precautions 25
3.4.1 Warning plates 25
3.4.2 Tools 25
3.4.3 Personnel 25
3.4.4 Keep the compressor clean 25
3.4.5 Periodic replacement of essential safety parts 25
CHAPTER 4 - TECHNICAL DATA 26
4.1 Technical characteristics 26
4.1.1 Monobloc, gooseneck, cylinders, pistons 26
4.1.2 Valves 26
4.1.3 Safety valves 26
4.1.4 Cooling pipes, lubrication 26
4.1.5 Frame, guards 26
4.1.6 Technical specifications table 27
4.1.7 Noise level 27
4.1.8 Dimensions and weight 28
4.1.9 Machine parts 29
CONTENTS

Contents
pag. 7
Use and maintenance manual MCH-36
CHAPTER 5 - HANDLING AND INSTALLATION 30
5.1 Unpacking 30
5.2 Handling 30
5.3 Installation 30
5.3.1 Positioning 30
5.3.2 Air intake extension connection 31
5.3.3 Reload hose connection 31
5.3.4 Electrical connection 32
CHAPTER 6 - USING THE COMPRESSOR 33
6.1 Preliminary checks before using for the first time 33
6.1.1 Filling with lubricant oil 33
6.1.2 Checking for proper electrical connection 33
6.2 Checks to be run at the start of each working day 34
6.2.1 Lubricating oil level check 34
6.2.2 Checking that the refill hoses are in good condition 34
6.2.3 Storing technical documentation 34
6.3 Control panel 35
6.3.1 Power indicator light 35
6.3.2 Direction of rotation indicator light 36
6.3.3 Lubricating oil level warning light 36
6.3.4 ON pushbutton 36
6.3.5 Stop-Emergency pushbutton 36
6.3.6 Manual condensate discharge pushbutton 37
6.3.7 Cabin interior / cooling air temperature 37
6.3.8 Hour counter 37
6.3.9 Lubrication oil circuit pressure gauge 37
6.3.10 1st stage pressure gauge 38
6.3.11 2nd stage pressure gauge 38
6.3.12 3rd stage pressure gauge 38
6.3.13 Working pressure gauge 38
6.3.14 Adjustable automatic shutdown pressure switch 39
6.3.15 Refill hose connection 39
6.4 Preliminary tasks 40
6.4.1 Safety valve checks 40
6.4.2 Automatic condensate discharge 41
6.5 Bottle refill 41
CONTENTS

Contents
pag. 8Use and maintenance manual
MCH-36
CHAPTER 7 - MAINTENANCE 43
7.1 Foreword 43
7.2 General 43
7.3 Unscheduled maintenance 43
7.4 Scheduled maintenance table 44
7.5 Troubleshooting 44
7.6 Checking and changing the lubricating oil and filter 45
7.6.1 Oil table 45
7.6.2 Checking the oil level 45
7.6.3 Changing the lubricating oil and filter 46
7.7 Changing the intake filter 47
7.8 Checking the safety valve 48
7.9 Transmission belts 48
7.9.1 Checking transmission belt tension 48
7.9.2 Changing the transmission belts 49
7.10 Condensate discharge 50
7.10.1 SILENT automatic condensate discharge 50
7.10.2 OPEN V.M. automatic condensate discharge 50
7.11 Active carbon filters / molecular sieve 51
7.11.1 Filter replacement frequency calculation table 51
7.11.2 Changing the active carbon filters 51
7.12 Changing the flex hoses 53
CHAPTER 8 - STORAGE 54
8.1 Stopping the machine for a brief period 54
8.2 Stopping the machine for a long period 54
CHAPTER 9 - DISMANTLING AND PUTTING OUT IF SERVICE 55
9.1 Waste disposal 55
9.2 Dismantling the compressor 55
CHAPTER 10 - INSTRUCTIONS FOR EMERGENCY SITUATIONS 56
10.1 Fire 56
CHAPTER 11 - MAINTENANCE REGISTER 57
CHAPTER 12 - NOTES 60
CONTENTS

Cap.1 _ General
pag. 9
Use and maintenance manual MCH-36
Do not destroy or modify the manual and update it with additional inserts only.
Manual code: 36-10-0001
Revision n°: 00 Edition: 08/2005
Machine type: High pressure compressor for breathing air and/or technical gases
Model: MCH-36
Manufacturer’s data: AEROTECNICA COLTRI S.r.l.
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BRESCIA) - ITALY
Telefono : [phone] - [phone]
Fax [phone]
http://www.coltrisub.it - http://www.coltrisub.com
e-mail: [email protected]
1 - GENERAL
1.1 - PRELIMINARY INFORMATION

Cap.1 _ General
pag. 10 Use and maintenance manual
MCH-36
Refers to dangerous situations that may occur during use of the compressor: aims to
ensure worker safety.
Refers to dangerous situations that may occur during use of the compressor: aims to
prevent damage to objects and the compressor itself.
Refers to additional information or suggestions for proper use of the compressor.
IMPORTANT:
DANGER:
WARNING:
The information/instructions for use contained in this manual concern the AEROTECNICA COLTRI Srl
compressor Mod. MCH-36 only.
The instruction manual must be read and used as follows:
-read this manual carefully; treat it as an essential part of the compressor;
-the instruction manual must be kept where it can readily be consulted by compressor operators and
maintenance staff;
-keep the manual for the working life of the compressor;
-make sure updates are incorporated in the manual;
-make sure the manual is given to other users or subsequent owners in the event of resale;
-keep the manual in good condition and ensure its contents remain undamaged;
-do not remove, tear or re-write any part of the manual for any reason;
-keep the manual protected from damp and heat;
-if the manual is lost or partially damaged and its contents cannot be read it is advisable to request a copy
from the manufacturer.
Important: you must understand the following symbols and their meaning. They highlight essential
information:
1.3 - IMPORTANT INFORMATION FOR THE USER
This manual must be read carefully:
- all compressor operators / maintenance personnel must read this entire manual with due care and attention
and observe the instructions/information contained herein.
- employers must ensure that the operator has the required aptitude for operation of the compressor and that
he/she has read the manual.
1.2 - REQUIRED OPERATOR TRAINING

Cap.1 _ General
pag. 11
Use and maintenance manual MCH-36
The regulations/instructions for use contained in this manual constitute an essential component of the
supplied compressor.
These regulations/instructions are intended for an operator who has already been trained to use this type of
compressor. They contain all the information necessary and essential to safety and efficient, proper use of
the compressor.
Hurried, incomplete preparation results in improvisation and this often leads to accidents.
Before beginning work, read the following suggestions carefully:
1) before using the compressor, gain familiarity with the tasks to be completed and the admissible
working position;
2) the operator must always have the instruction manual to hand;
3) program all work with due care and attention;
4) you must have a detailed understanding of where and how the compressor is to be used;
5) before starting work make sure that safety devices are working properly and that their use is
understood; in the event of any doubts do not use the compressor;
6) observe the warnings given in this manual with due care and attention;
7) constant and careful preventive maintenance will always ensure a high level of safety when using the
compressor. Never postpone repairs and have them carried out by specialised personnel only; use
only original spare parts.
1.4 - FOREWORD
1.5 - WARRANTY
The materials supplied by AEROTECNICA COLTRI Srl are covered by a 24-month warranty, the
validity of which begins when the compressor is put into service as proven by the delivery document.
AEROTECNICA COLTRI Srl shall repair or replace those parts it acknowledges to be faulty during the
warranty period.
In replacing the faulty part AEROTECNICA COLTRI Srl shall not be liable for any other expenses
sustained by the dealer or his customer such as presumed damage (present or future), lost earnings
or fines.
Routine and unscheduled maintenance must be carried out in compliance with the instructions
contained in this manual. Should the required work not be covered by the manual or assistance be
required you are advised to contact AEROTECNICA COLTRI Srl directly by fax, even where
agreements have already been made on the phone. AEROTECNICA COLTRI Srl cannot be held liable
for any delays or failure to execute work.
AEROTECNICA COLTRI Srl cannot be held liable for any damage or malfunctions caused by work
carried out on the compressor by unauthorised personnel.
IMPORTANT:
AEROTECNICA COLTRI Srl guarantees that its compressors are free from defects vis-à-vis design,
workmanship and the used materials for a period of 24 months starting from the date of delivery of the
compressor; should the customer note any flaws and/or defects he must report them, in writing, to
AEROTECNICA COLTRI Srl within 8 (eight) days of their discovery otherwise the warranty shall be
rendered null and void.
The warranty only covers flaws and faults that occur where the compressor is used properly in
compliance with the instructions contained in this manual and where periodic maintenance is carried out.
The warranty does not cover faults caused by improper use of the compressor, exposure to
atmospheric agents (rain etc.) or damage during transport; all materials subject to wear and those
subject to periodic maintenance are not covered by the warranty and are to be paid for by the
customer in full; in any event the warranty is rendered null and void if the compressor is tampered with or if
work is carried out on it by personnel who have not been authorised by AEROTECNICA COLTRI Srl.

Cap.1 _ General
pag. 12 Use and maintenance manual
MCH-36
1.6 - ASSISTANCE
AEROTECNICA COLTRI Srl technicians are at your disposal for all routine/unscheduled maintenance work.
Please forward your request for assistance to AEROTECNICA COLTRI Srl by sending a fax or e-mail to:
Fax. [phone]
[email protected]
AEROTECNICA COLTRI Srl considers itself exonerated from any responsibility or obligation regarding injury
or damage caused by:
- failure to observe the instructions contained in this manual that concern the running, use and maintenance
of the compressor;
- violent actions or incorrect manoeuvres during use or maintenance of the compressor;
- modifications made to the compressor without prior written authorisation from AEROTECNICA COLTRI Srl;
- incidents beyond the scope of routine, proper use of the compressor.
In any case, should the user impute the incident to a defect of the compressor, he/she must demonstrate that
the damage has been a major and direct consequence of this “defect”.
1.7 - RESPONSIBILITY
Maintenance and repairs must only be carried out using original spare parts. AEROTECNICA
COLTRI Srl cannot be held liable for any damages caused by failure to observe this rule.
The compressor is guaranteed as per the contractual agreements made at the time of sale.
Failure to observe the regulations and instructions for use contained in this manual shall
render the warranty null and void.
WARNING:
Acompressor that has been acknowledged as faulty on account of flaws in design, workmanship or used
materials shall be repaired or replaced free of charge by AEROTECNICA COLTRI Srl at its plant in
San Martino della Battaglia (BRESCIA); costs regarding transport, delivery of spare parts and any materials
subject to wear shall be met by the customer.
Should warranty-covered work need to be carried out on the customer’s premises, travel and accommodation
costs for personnel sent by AEROTECNICA COLTRI Srl shall be met by the customer.
The act of taking delivery of machines and/or faulty components or the sending of technicians to assess the
presumed defects and/or flaws reported by the customer does not in itself imply acknowledgement that the
defect is covered by warranty.
Repairs and/or replacements made by AEROTECNICA COLTRI Srl during the warranty period do not in any
way prolong the latter itself.
Acknowledgement that a defect is covered by warranty does not in itself mean that AEROTECNICA COLTRI
Srl is in any way liable to award compensation.
AEROTECNICA COLTRI Srl cannot be held liable for any other direct or indirect damages imputable to
compressor defects and flaws (loss of production or earnings etc.) except in cases where serious
negligence is demonstrated.

Cap.1 _ General
pag. 13
Use and maintenance manual MCH-36
1.8 - PURPOSE OF THE MACHINE
The compressor mod. MCH-36 has been designed and built for the purpose of obtaining excellent quality
breathing air by drawing it from the surrounding environment. The air is free from any harmful fumes. The air
is passed through an intake filter and, after the filtration cycle, is stored in bottles constructed to contain air
at high pressure.
Any other use is inappropriate: the manufacturer cannot be held liable for any personal injury or damage to
objects / the machine itself caused by improper use.
-Use only tested, certified bottles: do not exceed the working pressure indicated on them.
-Aspirate unpolluted air that is not stale.
Use the compressor in areas free from dust, risk of explosion, corrosion and fire.
-It is forbidden to use the compressor with an internal combustion engine indoors.
Make sure that air intakes are a long way from fume exhausts.
-Compressors used on boats can be certified via a R.I.Na (Registro Navale Italiano) test: this
should be requested at the time of order.
-Improper use could have serious consequences for the user.
-Do not disconnect the hose from the fittings or the clamp when under pressure.
-Change the air purification filters regularly as described in section “7.11.2 Changing the
active carbon filters”.
-Drain the condensate regularly as illustrated in section “7.10 Condensate discharge”.
-The power lead plug must be disconnected:
- if there is a problem during use
- before carrying out any cleaning or maintenance tasks.
-Never pull the plug out by tugging the lead. Make sure the lead is not bent at a sharp angle
and that it does not rub against any sharp edges. Use of extensions is advised.
-Never run the compressor when:
- the power lead is damaged;
- there is evident damage;
- the side doors are open.
-All routine and unscheduled maintenance tasks must be carried out with the compressor
at standstill, the electrical power supply disconnected and the pumping circuit
depressurised.
DANGER:

Cap.1 _ General
pag. 14 Use and maintenance manual
MCH-36
-After switching off the compressor wait about 30 minutes before carrying out any
maintenance tasks so as to prevent burns.
-The high pressure flex hose that connects to the bottle (also called the refill hose) must be
in good condition, especially in the areas near the fittings.
The plastic sheath that covers the pipe must not show any signs of abrasion otherwise
damp could get in, corrode the steel braid and weaken it.
The hose must be changed periodically (yearly) or when it shows signs of wear. Failure to
observe this rule could seriously endanger the users’ safety.
Make sue the minimum bending radius of the hose is no less than 250 mm.
DANGER:
-Before carrying out any work on the compressor each operator must have a perfect
understanding of how the compressor works, know how to use the controls and have read
the technical information contained in this manual.
-It is forbidden to use the compressor under conditions / for purposes other than those
indicated in this manual and AEROTECNICA COLTRI Srl cannot be held liable for
breakdowns, problems or accidents caused by failure to observe this rule.
-Check that the fittings provide a proper seal by wetting them with soapy water: eliminate
any leaks.
-Do not attempt to repair high pressure hoses by welding them.
-Do not empty the bottles completely, not even during winter storage as this practice
prevents damp air getting in.
-It is forbidden to tamper with, alter or modify, even partially, the systems and equipment
described in this instruction manual, especially as safety guards and safety symbols are
concerned.
-It is also forbidden to carry out work in any way other than that described or to neglect the
illustrated safety tasks.
-The safety information and the general information given in this manual are highly
important.
DANGER:
To ensure maximum working efficiency, AEROTECNICA COLTRI Srl has constructed the compressor with
carefully selected components and materials. The compressor is tested prior to delivery. Continued
compressor efficiency over time will also depend on proper use and maintenance as per the instructions
contained in this manual.
All the components, connections and controls used in its construction have been designed and built to a high
degree of safety so as to resist abnormal strain or in any case a strain greater than that indicated in the
manual. Materials are of the finest quality; their introduction and storage in the company and their utilisation
in the workshop are controlled constantly so as to prevent any damage, deterioration or malfunction.

Cap.1 _ General
pag. 15
Use and maintenance manual MCH-36
1.9 - WHERE THE MACHINE MAY BE USED
The compressor mod. MCH-36 has been designed and built for the purpose of obtaining excellent quality
breathing air by drawing it from the surrounding environment, free from any harmful fumes.
The air is passed through an intake filter and, after the filtration cycle, is stored in bottles constructed to
contain air at high pressure. The compressor must only be used in environments having the characteristics
described in the following table.
1.10 - RUNNING IN AND TESTING THE COMPRESSOR
Each compressor is carefully adjusted and tested prior to delivery.
Anew compressor must nevertheless be used with caution during the first 50 working hours so as to
complete proper running in of its components.
If the compressor is subject to an excessive workload during initial use, its potential efficiency will be
prematurely compromised and functionality soon reduced. During the running in period proceed as follows:
-after starting let the compressor run on empty for 5-6 minutes.
After the first 50 hours carry out - in addition to the scheduled maintenance - the following tasks:
-change the compressor oil;
-change the oil filter;
-check and adjust nuts and bolts;
AREA OF MACHINE USE: ESSENTIAL DATA TABLE
Characteristic Unit of measure Data
Temperature (°C) min. -20° - Max. +45°
Air humidity (%) max.80%
Max admissible wind when in use (m/s) max. 15
rain
Tolerated weather conditions hail None
snow
When changing the oil filter, inspect the internal part and check for any deposits; if they are
present track down the cause before restarting the compressor.
WARNING:
1 m 1 m
min.
1.5 m
Check that the area in which the compressor is to be
positioned is adequately ventilated: good air
exchange (more than one window) with no dust and
no risk of explosion, corrosion or fire.
If ambient temperatures exceed 45°C air
conditioning will be required.
Position the compressor no closer than 1 m to
surrounding walls; the gap between compressor and
ceiling should be at least 1.5 m. These distances
ensure proper compressor operation and proper
cooling of the pumping unit.
Make sure that lighting in the area is sufficient to
identify every detail (such as the writing on the info
plates/stickers); use artificial lighting where daylight
on its own is insufficient.

Cap.2 _ Basic information on the compressor
pag. 16 Use and maintenance manual
MCH-36
2 - BASIC INFORMATION ON THE COMPRESSOR
2.1 - DESCRIPTION OF THE COMPRESSOR
High pressure compressor for breathing air and
technical gases.
Compatible process gases:
-Carbon dioxide
-Nitrogen (also dry)
- Benzene
- Butadiene
- Helium
-Sulphur hexafluoride
-Natural gas
-Synthesis gas
- Hydrogen
- Methane
-Carbon monoxide
- Propane
2.2 - IDENTIFYING THE COMPRESSOR
Each compressor has an identification plate
attached to its frame.
AEROTECNICA COLTRI S.r.l.
Via Colli Storici 177
25010 DESENZANO D/G (BS) ITALY
Tel. [phone]
Fax. [phone]
MODEL
POWER
MOTOR
YEAR
S/N.
TYPE
MCH 36/ETS SILENT
15KW 20HP
ELECTRIC THREEPHASE
2005
0010
SC000296

Cap.2 _ Basic information on the compressor
pag. 17
Use and maintenance manual MCH-36
2.3 - GENERAL INSTRUCTIONS
-This manual must be read carefully before transporting, installing, using or carrying out any
maintenance on the compressor.
-It must be preserved carefully in a place known to compressor users, managers and all
transport/installation/maintenance/repair/final dismantling personnel.
-This manual indicates the purposes for which the compressor can be used and gives
instructions for its transport, installation, assembly, adjustment and use. It also provides
information on maintenance tasks, ordering spare parts, residual risks and staff training.
-It should be born in mind that the use and maintenance manual can never replace proper
experience; some maintenance jobs are particularly difficult and in this regard the manual
only offers general guidelines on the most important tasks, which must be carried out by
personnel with proper training (e.g. acquired during training courses run by the
manufacturer).
-This manual is an integral part of the compressor and must be stored in a suitable
container near the compressor until its final demolition. If the manual is lost or damaged a
copy can be requested from the manufacturer.
-Make sure all users have understood the regulations for use and the meaning of the
symbols on the compressor.
-Observance of these technical instructions can prevent accidents: instructions have been
drawn up in compliance with EEC Machinery Directive 89/392 and subsequent amendments.
-In any case always observe national safety regulations.
-Do not remove or damage guards, labels or notices, especially those required by law.
-The adhesives attached to the compressor are there for safety purposes. They must be
replaced if they become illegible.
-This manual reflects the technical knowledge available at the time the compressor was sold
and cannot be considered inadequate simply because updated at a later time on the basis of
new experience.
-The manufacturer reserves the right to update products and manuals, without any
obligation to update preceding products or manuals except in exceptional circumstances.
-To request or receive any updates or additions to this use and maintenance manual (which
shall be considered an integral part of the manual) apply via the contact numbers given on
page 12.
-Should you have any other queries or suggestions as to how to improve the manual please
contact the manufacturer.
-Should you sell the compressor AEROTECNICA COLTRI Srl invites you to provide us with
the details of the new owner so that any new additions to the manual can be sent on.
WARNING:

Cap.3 _ Safety regulations
pag. 18 Use and maintenance manual
MCH-36
The compressor must only be used by qualified personnel. They must have an understanding of the
arrangement and function of all the controls, instruments, indicators, warning lights and the various info
plates/labels.
Apply a sign with the legend: “TESTING IN
PROGRESS” on all sides of the compressor.
Check the compressor carefully every day it is used
as per the task list given in this manual.
3.1 - GENERAL SAFETY RULES
3 - SAFETY REGULATIONS
3.1.1 - KNOW THE MACHINE
3.1.2 - WEAR PROTECTIVE CLOTHING
All operators must use accident prevention items such
as gloves, hard hat, eye goggles, accident prevention
shoes and ear defenders against noise.
Make sure a first aid cabinet and a CO2fire
extinguisher are near the compressor.
Keep the extinguisher fully loaded. Use according to
standards in force.
TESTING IN PROGRESS
3.1.3 - KEEP EMERGENCY EQUIPMENT NEARBY
3.1.4 - WARN OTHERS WHEN DOING CHECKS/MAINTENANCE

Cap.3 _ Safety regulations
pag. 19
Use and maintenance manual MCH-36
-The EEC Machinery Directive 89/392 provides the following definitions (appendix 1, 1.1.1):
«DANGEROUS ZONE»: any zone inside and/or near a machine in which the presence of an exposed
person constitutes a risk for his/her security and health.
«EXPOSED PERSON»: any person wholly or partially inside a dangerous zone.
«OPERATOR»: the person(s) charged with the task of installing, running, maintaining, cleaning, repairing
and transporting the machine.
3.2 - GENERAL PRECAUTIONS
-Before carrying out any task or operation with the compressor it is compulsory to read and follow
the instructions given in the use and maintenance manual. Doing so during work is too late:
improper use or an erroneous manoeuvre could cause serious damage or injury.
-The employer must provide workers with detailed information on the risk of accident, especially
risks deriving from noise, use of safety devices and the general accident prevention regulations
provided for by international laws or standards or national standards within the country of use.
All operators must observe both international accident prevention standards and the national ones
relevant to the country of use.
Bear in mind that the European Union has issued directives concerning worker health and safety:
these include EEC directives 89/391, 89/686, 89/654, 89/655, 89/656, 86/188, 92/58 and 77/576 which
all employers are legally obliged to comply with.
-Before carrying out any work on the compressor each operator must have a perfect understanding
of how the compressor works, know how to use the controls and have read the technical
information contained in this manual.
IMPORTANT:
-Removing or tampering with any safety device is strictly forbidden.
-All installation, routine or unscheduled maintenance work must be carried out with the
compressor at standstill and disconnected from the electrical power supply.
-Once the compressor has been cleaned the operator must check for any worn, damaged or loose
parts; in this case seek assistance from the maintenance technician.
It is especially important to check that flex hoses or other parts subject to wear are in good
condition. Check also for any leaking of oil or other dangerous substances. If such situations arise
it is forbidden to restart the compressor before the situation is resolved. If these problems are
observed at the end of the refilling the operator must, before leaving the machine unattended, place
a sign on the compressor indicating that maintenance work is in progress and that it must not be
restarted.
IMPORTANT:
It is forbidden to tamper with or replace compressor parts without obtaining prior
authorisation from AEROTECNICA COLTRI Srl.
The use of accessories, tools, materials subject to wear or spare parts other than those
recommended by the manufacturer and/or illustrated in this manual can constitute a source
of danger to operators and/or damage the machine.
Any modification to the compressor that has not been expressly authorised by
AEROTECNICA COLTRI Srl shall exonerate the manufacturer from any civil or penal liability.
WARNING:

Cap.3 _ Safety regulations
pag. 20 Use and maintenance manual
MCH-36
-Never place hands or introduce screwdrivers, keys or other tools into moving parts.
-Never clean with flammable fluids.
-Periodically check the info plates/labels and restore/replace them where necessary.
-The workplace must be kept clean, tidy and free from objects that might hinder movement.
-Operators must avoid carrying out “awkward” tasks in uncomfortable positions that might cause
imbalance.
-Operators should be aware of the risk of entrapment caused by clothes or hair getting caught up
in moving parts; wear a cap to contain long hair.
-Necklaces, bracelets and rings can also be a source of danger.
-Workplace lighting must be adequate for the work in progress. Insufficient or excessive lighting
can generate risks.
-Always observe the instructions, accident prevention regulations and the warnings contained in
this manual.
IMPORTANT:
The compressor has been designed and built according to the state of the art and complies with technical
regulations in force concerning compressors for the production of high pressure breathing air. The laws,
regulations, standards and directives in force for such machines have been complied with.
Materials, parts, production procedures and quality controls all comply with the strictest safety and reliability
standards.
Using the compressor for the purposes described in this manual, handling it with due diligence and carrying
out maintenance and overhauls according to proper working practices will ensure long lasting performance
and functionality.
3.2.1 - IMPORTANT SAFETY INFORMATION
The manufacturer cannot be held liable for accidents that occur during use of the compressor as a result of the
user’s non-observance of the laws, regulations, standards and directives in force for high pressure compressors.
The compressor has been designed for use in weather conditions as described on page 15.
The constructor cannot be held liable for malfunction or damage if the compressor:
-is used for purposes other than that for which its is intended;
-is not handled or maintained according to the instructions specified in this manual;
-is not periodically and continually maintained as instructed or if non-original spare parts are used;
-machine parts are modified or replaced without written authorisation from the manufacturer, especially
where the efficiency of safety devices has been reduced or eliminated;
-where it is used outside the admissible temperature range.
3.2.2 - ACCIDENT PREVENTION
3.2.3 - WORKING SAFETY