AEROTECNICA COLTRI MCH 13-16/ET Standard User manual

MCH 13-16/ET
MCH 8-11/EM
STANDARD
with electric motor
STANDARD
with electric motor
www.aerotecnicacoltri.com
High pressure compressors for pure breathing air and technical gases
USE AND MAINTENANCE MANUAL
High pressure compressors for pure breathing air and technical gases
USE AND MAINTENANCE MANUAL

pag. 2di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard

page 3of 60
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
MMCCHH
1133--1166//EETT SSttaannddaarrdd
MMCCHH
88--1111//EEMM SSttaannddaarrdd
HIGH PRESSURE COMPRESSORS FOR PURE BREATHING AIR AND TECHNICAL GASES
IMPORTANT BEFORE USING THE COMPRESSOR READ THIS
MANUAL CAREFULLY
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BS)ITALY
Tel. [phone] Fax. [phone]
www.coltrisub.it www.coltrisub.com
[email protected]

pag. 4di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Dear Customer,
Thank you for choosing an AEROTECNICA COLTRI 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 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 international
technical service is able to provide you with assistance and spare parts as and when
required.
To ensure that your requests are dealt quickly, the following information is provided:
Manufacturer’s data: AEROTECNICA COLTRI Spa.
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BRESCIA) - ITALY
Tel [phone]
Fax [phone]
http://www.coltrisub.it - http://www.coltrisub.com
e-mail: [email protected]

pag. 5di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
DECLARATION CONFORMITY
Italian DPR 459 of 24 th July 1996, appendix II, part A
It is hereby declared that he machine model:
MCH
13-16/ET Standard
MCH
8-11/EM Standard
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 Spa. Reproduction, whole or partial, is forbidden

pag. 6di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Quick guide
AC
AC
AC
AC
A
CC
A
AC
QUICK GUIDE
WARNING -This guide is intended only as a rapid introduction to use of the compressor.
-This guide is not meant to replace the use and maintenance manual.
-This compressor must not be used before reading the entire use and maintenance
manual.
Preliminary tasks:
-Position the compressor in the selected area (see chap
“5”)
-If necessary connect the air intake extension (see
section “5.3.2”).
-Check the oil level; if the compressor is new fill the oil
sump with the oil supplied with the compressor (see
section “7.6”).
-Connect the electric motor to the mains power socket
(see section “5.3.3”);
-For compressors equipped with a three-phase electric
motor, check that the cooling fan rotates in the
direction indicated by the arrow on the cover; if it turns
the other way invert two of the three phases on the
mains power (see section “6.1.2”).
-Connect up the refill hoses (see section “7.12”).
-Check the safety valve is working (see section “7.8”);
-Switch on the compressor with the end tap closed and
check that air is discharged freely when the gauge
value is equal to the valve setting (see section “6.4.1”);
Bottle refill (see section “6.6”):
-fit the hose connector 1 on the bottle connector 3
(closed) (A);
-open the condensate discharge taps 2 and bottle
taps 4;
-start the compressor (B);
When refill is complete:
-close filling valve taps 2 and bottle taps 4 (A);
-switch off compressor, except for models with
pressure switch (B);
-bleed the pressure from the filling valve tap via the
bleed tap 5 (A);
-disconnect the connector 1 from the bottle (A).
Maintenance:
-After the first 5 working hours change the oil again (see
section “7.6.3”).
-Check the lubricating oil level every 5 hours (see
section “7.6.2”).
-Change the lubricating oil every 250 hours (see section
“7.6.3”).
-Periodically change the air intake filter (see section
“7.7”).
-Check the safety valve at every refill (see section “7.8”).
-Check transmission belt tension and if necessary
change them (see section “7.10”).
-Discharge the condensate (see section “7.9”).
-Periodically replace the active carbon filters / molecular
sieve (see section “7.11”).
-Periodically replace the refill hoses (see section “7.12”).
A
B
B
B
Stop
Emergency
Start
5
5
1
1
2
2
3
4
“0” Stop “1” Start
Stop
Start
Models with control panel
Model: MCH 8-11/EM Standard
Model: MCH 13-16/ET Standard

pag. 7di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Contents
CONTENTS
CHAPTER 1 – GENERAL 10
1.1 Preliminary information 10
1.2 Required operator training 10
1.3 Important information for the user 11
1.4 Foreword 12
1.5 Warranty 12
1.6 Assistance 13
1.7 Responsibility 13
1.8 Purpose of the machine 14
1.9 Where the machine may be used 16
1.10 Running in and testing the compressor 16
1.10.1 Tightening torque values 16
CHAPTER 2 – BASIC INFORMATION ON THE COMPRESSOR 17
2.1 Description of the compressor 17
2.2 Identification the compressor 17
2.3 General instructions 18
CHAPTER 3 – SAFETY REGULATIONS 19
3.1 General safety rules 19
3.1.1 Know the machine 19
3.1.2 Protective clothing 19
3.1.3 Emergency equipment 19
3.1.4 Checks and maintenance 19
3.2 General precautions 20
3.2.1 Important safety information 21
3.2.2 Accident prevention 21
3.2.3 Working safety 21
3.2.4 Residual risk zones 22
3.3 Safety info labels: location 23
3.3.1 Safety info labels: description 24
3.4 General safety regulations 26
3.4.1 Care and maintenance 26
3.4.2 Fire extinguishers and first aid 26
3.5 Maintenance precautions 27
3.5.1 Warning signs 27
3.5.2 Tools 27
3.5.3 Personnel 27
3.5.4 Keeping the compressor clean 27
3.5.5 Periodic replacement of essential safety parts 27
CHAPTER 4 – TECHNICAL DATA 28
4.1 Technical characteristics 28
4.1.1 Crankcase, crankshaft, cylinder, pistons 28
4.1.2 Valves 28
4.1.3 Safety valves 28
4.1.4 Pressure maintenance valve 28
4.1.5 Lubrication 28
4.1.6 Cooling tubes 28
4.1.7. Frame, guards 28
4.2 Machine parts 29

pag. 8di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Contents
CONTENTS
4.3 Technical characteristics 30
4.3.1 MCH 13/ET Standard 30
4.3.2 MCH 16/ET Standard 31
4.3.3 MCH 8/EM Standard 32
4.3.4 MCH 11/EM Standard 33
CHAPTER 5 – HANDLING AND INSTALLATION 34
5.1 Unpacking 34
5.2 Handling 34
5.3 Installation 35
5.3.1 Positioning 35
5.3.2 Air intake extension connection 35
5.3.3 Electrical connection 36
CHAPTER 6 – USING THE COMPRESSOR 37
6.1 Preliminary checks before using for the first time 37
6.1.1 Filling with lubricating oil 37
6.1.2 Checking for proper electrical connection 37
6.2 Checks to be run at the start of each working day 37
6.2.1 Lubricating oil level check 37
6.2.2 Checking that the flex hoses are in good condition 38
6.2.3 Storing technical documentation 38
6.3 Control panel (optional) 38
6.4 Preliminary tasks 39
6.4.1 Checking the safety valves 39
6.5 Starting and shutting down 40
6.5.1 Starting and shutting down MCH 8-11/EM Standard 40
6.5.2 Starting and shutting down MCH 13-16/ET Standard 40
6.5.3 Starting and shutting down with control panel 40
6.6 Tank refill 41
CHAPTER 7 – MAINTENANCE 43
7.1 Foreword 43
7.2 General 43
7.3 Unscheduled work 43
7.4 Scheduled maintenance table 44
7.5 Troubleshooting 44
7.6 Checking and changing the lubricating oil 45
7.6.1 Oil table 45
7.6.2 Checking the oil level 45
7.6.3 Changing the lubricating oil 46
7.7 Changing the intake filter 47
7.8 Checking the safety valve 48
7.9 Condensate discharge 48
7.10 Transmission belt 49
7.10.1 Checking transmission belt tension 49
7.10.2 Changing transmission belt 49

pag. 9di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Contents
7.11 Active carbon filter / molecular sieve 50
7.11.1 Filter replacement frequency calculation table 50
7.11.2 Changing the active carbon filter / molecular sieve 50
7.12 Changing the flex hoses 52
CHAPTER 8 – STORAGE 53
8.1 Stopping the machine for a brief period 53
8.2 Stopping the machine for a long period 53
CHAPTER 9 – DISMANTLING AND PUTTING OUT OF SERVICE 54
9.1 Waste disposal 54
9.2 Dismantling the compressor 54
CHAPTER 10 – INSTRUCTIONS FOR EMERGENCY SITUATIONS 55
10.1 Fire 55
CHAPTER 11 – MAINTENANCE REGISTER 56
11.1 Assistance service 56
11.2 Scheduled maintenance 56
11.3 Using the compressor under heavy-duty conditions 56
11.4 The Customer Care Centre 56
11.5 Scheduled maintenance registry coupons 57
CHAPTER 12 - NOTES 60
CONTENTS

pag. 10 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
Do not destroy or modify the manual and update it with inserts published by producer only.
Machine type: High pressure compressor for breathing air and/or technical gases
Model: MCH 13-16/ET Standard
MCH 8-11/EM Standard
Revision n°: 00
Manual version: 04/2007
Manufacturer’s data: AEROTECNICA COLTRI Spa.
Via Colli Storici, 177
25010 SAN MARTINO DELLA BATTAGLIA (BRESCIA) - ITALY
Tel [phone]
Fax [phone]
http://www.coltrisub.it - http://www.coltrisub.com
e-mail: [email protected]
Appendices:
- Safety regulations
PRELIMINARY INFORMATION
1 – GENERAL
1.1
REQUIRED OPERATOR TRAINING
1.2
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.
- Company owners must ensure that the operator has the required training for operation of the compressor
and that he/she has read the manual.

pag. 11 di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
The information/instructions for compressor use contained in this manual only concern the:
AEROTECNICA COLTRI Mod.:
MCH13-16/ET Standard.
MCH8-11/EM Standard.
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:
IMPORTANT INFORMATION FOR THE USER1.3
IMPORTANT Refers to additional information or suggestions for proper use of the compressor.
DANGER Refers to dangerous situations that may occur during use of the compressor: aims to
ensure worker safety.
WARNING Refers to dangerous situations that may occur during use of the compressor: aims to
prevent damage to objects and the compressor itself.

pag. 12 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
The materials supplied by AEROTECNICA COLTRI Spa are covered by a 1 year
warranty, the validity of which begins when the compressor is put into service as
proven by the delivery document.
AEROTECNICA COLTRI Spa shall repair or replace those parts it acknowledges to be faulty during the
warranty period.
In replacing the faulty part AEROTECNICA COLTRI Spa 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 Spa in writing, even where agreements
have already been made on the phone. AEROTECNICA COLTRI Spa cannot be held liable for any
delays or failure to execute work.
AEROTECNICA COLTRI Spa cannot be held liable for any damage or malfunctions caused by work
carried out on the compressor by unauthorised personnel.
FOREWORD1.4
WARRANTY1.5
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 or careless preparation leads to improvisation, which is the cause of 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.
AEROTECNICA COLTRI Spa guarantees that its compressors are free from defects design,
workmanship and the used materials for a period of 1 year 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 Spa within 2 month 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 Spa.
IMPORTANT

pag. 13 di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
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 Spa 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 Spa. 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 Spa 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
Spa is in any way liable to award compensation.
AEROTECNICA COLTRI Spa 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.
WARNING Maintenance and repairs must only be carried out using original spare parts.
AEROTECNICA COLTRI Spa 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.
ASSISTANCE1.6
RESPONSIBILITY
1.7
AEROTECNICA COLTRI Spa technicians are at your disposal for all routine/unscheduled maintenance work.
Please forward your request for assistance to AEROTECNICA COLTRI Spa by sending a fax or e-mail to:
Fax [phone]
[email protected]
AEROTECNICA COLTRI Spa 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 Spa;
- 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”.

pag. 14 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
PURPOSE OF THE MACHINE1.8
The compressors mod. MCH8-11/EM MCH13-16/ET Standard have been designed and built for the
purpose of obtaining excellent quality breathing air by drawing it from the surrounding environment. The air,
free from any harmful fumes, is passed through an intake filter and, after the filtration cycle, is stored in
bottles constructed to contain air at high pressure.
The compressor can also be used to obtain other non-breathable gases for industrial use such as:
- Nitrogen
- Helium
- Natural gas
- Methane
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.
DANGER - Use only tested, certified bottles: do not exceed the working pressure indicated on
them.
- Aspirate unpolluted air.
Use the compressor in areas free from dust, risk of explosion, corrosion and fire.
- Improper use could have serious consequences for the user .
- Do not disconnect the hose from the fittings or the clamp when it is 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 “7.9 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 inadvisable.
- Never run the compressor when:
- the power lead is damaged;
- there is evident damage;
- the covers/guards are removed.
- 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.
- 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 sure the minimum bending radius of the hose is no less than 250 mm.

pag. 15 di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
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 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, so as to prevent 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.
To ensure maximum working efficiency, AEROTECNICA COLTRI 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.

pag. 16 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.1 _ General
WHERE THE MACHINE MAY BE USED1.9
RUNNING IN AND TESTING THE COMPRESSOR
1.10
The compressors mod. MCH8-11/EM MCH13-16/ET Standard have been designed and built for the
purpose of obtaining excellent quality breathing air by drawing it from the surrounding environment. The air,
which must be free from any harmful fumes, 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.
Check that the area in which the compressor is to be positioned is adequately ventilated: good air exchange
with no dust and no risk of explosion, corrosion or fire.
If ambient temperatures exceed 45°C air conditioning will be required.
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.
Each compressor is carefully running and tested prior to delivery.
Anew compressor must nevertheless be used with caution during the first 5 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 5 hours carry out - in addition to the scheduled maintenance - the following tasks:
- change the compressor oil;
- check and adjust nuts and bolts.
AREA OF MACHINE USE: ESSENTIAL DATA TABLE
Temperature ambient (°C) min. +5° - Max. +45°
Air humidity (%) max.80%
rain
Tolerated weather conditions hail None
snow
Max tilt angle (bank) % 6
Tightening torque values1.10.1
The table shows tightening torques for bolts or hexagonal-head screws or socket screws lubricated with
grease, except for specific cases indicated in the manual. Pipe connections (swivel nuts) should be finger tight
plus an additional 1/2 turn.
Tightening torque values
Thread Max. torque
M6 - 1/4” 10Nm (7ft-lbs)
M8 - 5/16” 25Nm (18ft-lbs)
M10 - 3/8” 45Nm (32ft-lbs)
M12 - 1/2” 75Nm (53ft-lbs)
M14 - 9/16” 120Nm (85ft-lbs)
M16 - 5/8” 200Nm (141ft-lbs)
2 4
3 1
1
3
5
2
4
6
2 4
3 1
1
3
5
2
4
6
1
3
5
2
4
6
6 bolt and 4 bolt torque sequence

pag. 17 di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.2 _ Basic information on the compressor
DESCRIPTION OF THE COMPRESSOR2.1
IDENTIFICATION THE COMPRESSOR
2.2
High pressure compressor for breathing air and
technical gases.
Compatible process gases:
- Nitrogen
- Helium
- Natural gas
- Methane
2 - BASIC INFORMATION ON THE COMPRESSOR
Each compressor has an identification label (a)
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 13-16/ET STANDARD
4KW
ELECTRIC THREEPHASE
2005
0010
SC000296
a

pag. 18 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.2 _ Basic information on the compressor
GENERAL INSTRUCTIONS2.3
WARNING - 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 in section “1.6
Assistance”.
- 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 invites you to provide us with the details
of the new owner so that any new additions to the manual can be sent on.

pag. 19 di 64
Use and Maintenance Manual MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.3 _ Safety regulation
3 - SAFETY REGULATIONS
GENERAL SAFETY RULES
Know the machine
3.1
3.1.1
Protective clothing3.1.2
Emergency equipment3.1.3
Checks and maintenance3.1.4
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.
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 CO2 fire
extinguisher are near the compressor.
Keep the extinguisher fully loaded. Use according to
standards in force.
Apply a sign with the legend “WORK IN
PROGRESS” on all sides of the compressor.
Inspect the compressor carefully every day it is used
as per the check list given in this manual.
WORK IN
PROGRESS

pag. 20 di 64 Use and Maintenance Manual
MMCCHH88--1111//EEMM
-- MMCCHH1133--1166//EETTStandard
Cap.3 _ Safety regulation
GENERAL PRECAUTIONS3.2
- The EEC Machinery Directive 89/392 provides the following definitions (appendix 1, 1.1.1):
«DANGEROUS ZONE»: any zone in side 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 th e task of installing, running, maintaining, cleaning, repairing
and transporting the machine.
IMPORTANT - 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.
WARNING It is forbidden to tamper with or replace compressor parts without obtaining prior
authorisation from AEROTECNICA COLTRI.
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 shall exonerate the manufacturer from any civil or penal
liability.