Rotair Dustless Blasting D185T4F-DB Operating instructions

USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
03
Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.P.A.
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USER'S AND MAINTENANCE MANUAL
Air Compressor
D185T4F-DB

USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
03
Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.P.A.
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Dear customer,
Thank you for purchasing this ROTAIR Air Compressor, which is designed and manufactured in
compliance with high standards in order to ensure high quality performance as well as easy use and
installation.
For additional information, you can contact our customer service at the following address:
ELGi Portable Compressors
4610 Entrance Drive Suite A
Charlotte, NC 28273
Direct [phone]
www.elgi.us/portable-compressors

USER'S AND
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MANUAL
Date:
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Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
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FOREWORD
These service instructions have been drafted to facilitate the knowledge of the machinery purchased and its
modes of use. In drafting them, we have intentionally omitted the technical in-depth description of some
operations linked to the engine, since such information is contained in the user's and maintenance manuals
of the respective manufacturers. The service instructions contain recommendations of the utmost
importance concerning the safe, appropriate, and cost-effective operation of the machine. Complying with
these recommendations helps prevent potentially hazardous situations, additional costs, and loss of time,
increasing the service life of the machine. The service instructions and safety measures reported in this
manual must be complied with by the user of the machinery. In addition to the service instructions and the
accident prevention measures that apply in the countries and places of installation, all of the general safety
rules at the workplace must be complied with. It is therefore recommended to carefully read, understand and
follow the instructions reported in this manual. This manual cannot be disclosed, duplicated, or copied without
the previous authorization by the manufacturer. Any lack of compliance with the above shall be pursued under
the law, especially if the illicit action involves advantages for competing companies.

USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
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TABLE OF CONTENTS
1General......................................................................................................................................................... 7
1.1 Definitions .............................................................................................................................................. 7
1.1-1 Qualified personnel .......................................................................................................................... 7
1.1-2 Hazard .............................................................................................................................................. 7
1.1-3 Hazardous area ................................................................................................................................ 7
1.1-4 Exposed person ............................................................................................................................... 7
1.1-5 Operator ........................................................................................................................................... 7
1.1-6 Risk .................................................................................................................................................. 7
1.1-7 Guard ............................................................................................................................................... 7
1.1-8 Protection Equipment ....................................................................................................................... 7
1.1-9 Expected use ................................................................................................................................... 7
1.1-10 Incorrect use ..................................................................................................................................... 7
1.1-11 Component ....................................................................................................................................... 7
1.1-12 Control Device .................................................................................................................................. 7
1.1-13 Safety interlock ................................................................................................................................. 8
1.1-14 Manufacturer .................................................................................................................................... 8
1.2 Machinery Identification ........................................................................................................................ 8
1.3 General technical standards .................................................................................................................. 9
1.4 General description of the machinery ................................................................................................. 10
2Technical specifications of the machinery ............................................................................................. 11
2.1 General technical specifications ......................................................................................................... 11
2.2 Technical specifications of the compressor ........................................................................................ 11
2.3 Technical specifications of the engine ................................................................................................ 12
2.4 Technical specifications of the electric battery ................................................................................... 12
2.5 Service temperatures .......................................................................................................................... 12
3Symbols and warnings............................................................................................................................. 14
3.1 Hazards ............................................................................................................................................... 14
3.2 Warnings.............................................................................................................................................. 15
3.3 Recommendations and notices ........................................................................................................... 16
3.4 General notices ................................................................................................................................... 16
4Use of the machinery ............................................................................................................................... 18
4.1 Use allowed ......................................................................................................................................... 18
4.2 Use not allowed ................................................................................................................................... 18
4.3 Residual risk ........................................................................................................................................ 19
5Levels and qualifications of the personnel ............................................................................................ 20
6Safety recommendations ......................................................................................................................... 20
6.1 Safety recommendations concerning transport ................................................................................... 20
6.2 Safety recommendations concerning lifting ......................................................................................... 20
6.3Safety recommendations concerning maintenance ............................................................................ 22
6.4Safety recommendations concerning toolbox...................................................................................... 23

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7.1 Body .................................................................................................................................................... 24
7.2Engine ................................................................................................................................................. 24
7.3Compression unit ................................................................................................................................ 24
7.4Oil mist separator tank ................................................................................................ ........................ 24
7.5Hub and splined coupling (KTR Joi nts)................................................................................................ 24
7.6Control panel ........................................................................................................................................ 25
8Electrical equipment of the machinery .................................................................................................... 26
8.1 Operator's panel .................................................................................................................................. 26
8.2 Operator's panel warning/indicator lights.............................................................................................. 27
8.3 Fuses .................................................................................................................................................... 30
9Hydraulic and pneumatic systems .......................................................................................................... 31
9.1 Hydraulic lubrication system ................................................................................................................ 31
9.2 Pneumatic system ................................................................................................................................ 32
9.2-1 Automatic adjustment of the engine RPM ...................................................................................... 33
10 Recommendation for the appropriate operation of the air compressor .............................................. 34
10.1 Before starting ...................................................................................................................................... 34
10.2 Starting................................................................................................................................................. 35
10.3 During operation ................................................................................................................................... 37
10.4 Stopping the engine.............................................................................................................................. 37
10.5 After stopping the engine...................................................................................................................... 37
11 Monitoring and testing of the machine ................................................................................................... 38
11.1 Monitoring and testing of engine RPM................................................................................................. 38
11.1-1 Control system of maximum engine RPM ...................................................................................... 38
11.1-2 Control system of minimum engine RPM ....................................................................................... 38
11.2 Monitoring and controlling the maximum air pressure of the compressor .......................................... 40
11.3 Monitoring and controlling the minimum air pressure of the compressor ........................................... 41
12 Safety device ............................................................................................................................................. 42
12.1 Verification of the safety valve ............................................................................................................ 42
13 Maintenance .............................................................................................................................................. 43
13.1 Routine maintenance ........................................................................................................................... 43
13.2 Maintenance program .......................................................................................................................... 44
13.3 Torques for tightening screws and bolts .............................................................................................. 46
13.4 Maintenance ......................................................................................................................................... 47
13.4-1 Checking and cleaning air filters .................................................................................................... 47
13.4-2 Servicing the battery ....................................................................................................................... 48
13.4-3 Fuse replacement ........................................................................................................................... 49
13.4-4 Cleaning the radiator ...................................................................................................................... 50
13.4-5 Mixture of engine coolant ............................................................................................................... 50
13.4-6 Checking and cleaning oil recovery nozzle..................................................................................... 51
13.4-7 Draining the fuel tank ...................................................................................................................... 51
13.4-8 Replacing diesel fuel filter and pre-filter .......................................................................................... 52
7Machinery components............................................................................................................................ 24

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13.4-9 Compressor oil filter replacement ................................................................................................. 52
13.4-10 Replacing compressor oil............................................................................................................... 53
13.4-11 Checking the oil mist separator ...................................................................................................... 54
13.4-12 Replacing the oil mist separator filter ............................................................................................. 54
13.4-13 Engine controls and maintenance ................................................................................................. 55
14 Spare parts ................................................................................................................................................ 55
15 Faults and troubleshooting ..................................................................................................................... 56
16 Disposal of the machine .......................................................................................................................... 58
16.1 Instructions for dismantling ................................................................................................................. 58
17 Disposal of the machine .......................................................................................................................... 58
18 Waste management .................................................................................................................................. 59
18.1 Special waste ...................................................................................................................................... 59
18.2 Toxic and hazardous waste ................................................................................................................ 59
18.3 Temporary storage .............................................................................................................................. 59
18.4 Features of the containers .................................................................................................................. 59
18.5 Registration requirements ................................................................................................................... 59

USER'S AND
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MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
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1 GENERAL
1.1 Definitions
The most significant definitions contained in this manual are reported in the following pages.
1.1-1 QUALIFIED PERSONNEL
"Qualified personnel" are those personnel who are familiar with the rules for installation, assembly, repair,
and servicing of the machinery and who are provided with the specified technical qualifications, such as:
Technical training of proper operation and safety precautions relating to possible hazards of electric
currents, hydraulic and air pressure circuits, etc.
Technical background or specific training relevant to the safe operation and maintenance procedures of
the machinery
Training in basic first-aid activities
1.1-2 HAZARD
A potential source of injury or damage to health
1.1-3 HAZARDOUS AREA
Any area within and/or in proximity of machinery where the presence of a person constitutes a risk for the health
and safety of said person
1.1-4 EXPOSED PERSON
Any person being fully or partially in a hazardous area
1.1-5 OPERATOR
The person/people in charge of installing, operating, adjusting, cleaning, repairing, or moving
machinery or perform maintenance
1.1-6 RISK
Combination of the likelihood and severity of an injury or damage to health which may arise in a hazardous
situation
1.1-7 GUARD
Part of the machinery utilized to ensure protection by means of a material barrier
1.1-8 PROTECTION EQUIPMENT
Device (different from a guard) which reduces the risk, by itself or associated with a guard
1.1-9 EXPECTED USE
The use of the machinery in compliance with the user's information
1.1-10 INCORRECT USE
The use of the machinery in a different way than indicated in the user's instructions
1.1-11 COMPONENT
A part of the electrical, mechanical, or pneumatic equipment, usually specified by its function but used in
various applications

USER'S AND
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A device introduced into a control circuit and used to control the operation of the system (e.g.: position
sensors, manual control switches, relays, electro-magnetic control valves, manual control switches, relays,
electro-magnetic control valves)
1.1-13 SAFETY INTERLOCK
Mechanical, electrical, or other device whose purpose is to prevent the parts of the machinery from
operating in specified conditions (generally, until the guard is closed)
1.1-14 MANUFACTURER
Physical or legal person who designed and/or developed machinery or partly-completed machinery which
is subject of this directive and who is liable for the compliance of the machinery or partly-completed
machinery with this directive as related to its marketing with his/her name or brand or for personal use. In
absence of a manufacturer as defined above, the manufacturer shall be considered the physical or
juridical person who markets or puts into service machinery or partly-completed machinery.
1.2 Machinery Identification
The identification nameplate is attached to the air compressor chassis. This nameplate contains
the manufacturer's data, the denomination of the machinery, and the code and year of
manufacturing.
For any requests for spare parts or actions by our technicians, please refer to the data reported on the
nameplate, particularly the code number of the machinery, which must always be mentioned.
Figure 1.2-1 Nameplate of air compressor D185T4F-DB
1.1-12 CONTROL DEVICE

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Air Compressor : D185T4F-DB
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1.3 General technical standards
The machinery has been designed and developed in compliance with the recommendations contained in the
technical standards reported below.
UNI EN ISO 12100
Safety of machinery - General design principles - Risk assessment and
risk reduction.
UNI EN ISO 13857
Safety of machinery - Safety distances to prevent from reaching
the hazardous areas with the upper or lower limbs.
UNI EN ISO 13850
Safety of machinery - Emergency stop system, functional aspects
CEI EN 62061
Safety of machinery - Functional safety of the programmable electrical and
electronic control systems as related to safety
CEI EN 60204-1
Safety of machinery - Electrical equipment of the machineries. Part I:
General rules.
UNI EN 983
Safety of machinery - Safety requirements relevant to systems/related
components for hydraulic and pneumatic transmission - Pneumatics
UNI EN 349
Safety of machinery - Minimum openings to prevent the crushing of parts
of the human body
D. LGS. January 27th 2010
no.17
Implementation of Directive 2006/42/CE relevant to machinery, which
modifies directive 95/16/CE relevant to elevators
UNI EN ISO 14121-1
Safety of machinery - Risk assessment - General principles
UNI EN ISO -TR 14121-2
Safety of machinery - Examples
Machine directive 2006/42/CE.
Article 7. Presumption of conformity and general standards
1. The Member States deem that the machinery provided with the “CE” marking and accompanied by the CE
declaration of conformity, whose elements are provided for in Annex II, Part 1, Section A, comply with the
provisions of this directive.
2. The machinery manufactured in compliance with an authorized standard, whose reference has been
published in the Official Journal of the European Union, is assumed to be compliant with the essential
health and safety requirements covered by such harmonized standards.
3. The Commission published the references of the harmonized standards in the Official Journal of the
European Union.
4. The Member States shall take the appropriate measures to allow the social partners influencing—at the
national level—the development and control processes of the general standards.

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1.4 General description of the machinery
The piece of machinery described in this manual is the air compressor D185T4F-DB. The air compressor has the
capacity of generating a given quantity of compressed air in liters per minute (l/m) by using a diesel engine as its
power source. The pneumatic energy finds applications in different fields of use, where "pneumatic" operated tools,
accessories, and equipment are utilized, for instance demolition hammers, drilling hammers, vibrators, drilling
machines, rammers, coating machines, etc.
Each of these tools/accessories has its own consumption of compressed air, expressed in liters per minute
(l/m). The optimum coupling between the compressor and the tool is achieved when the compressed air
consumption does not exceed 85% of the air generated by the compressor; furthermore, it must be taken into
consideration that the quantity of compressed air required by the tool shall increase over time proportionally to the
wear of the tool itself.
The correct compressor-tool coupling ratio allows the machinery to operate in optimum conditions as appropriate to
ensure long life-span at the highest performance. An oversized tool, besides creating unfavorable conditions for the
appropriate operation of the machinery, shall not develop full performance since it cannot be supplied with the
required quantity of compressed air.
This machinery has been designed to work at ambient temperatures ranging from -10°C (14°F) and +40°C
(105°F).

2 TECHNICAL SPECIFICATIONS OF THE MACHINERY
USER'S AND
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MANUAL
Date: 01/31/2020
Code MAN D185T4F-DB
ENG
Air Compressor: D185T4F-DB Revision 03
The general technical specifications of the machinery are reported below
2.1 General technical specifications
2.2 Technical specifications of the compressor
D185T4F
DESCRIPTION TECHNICAL VALUES AND DATA
Service pressure 8.2 bars, 120 psi
Min. pressure 5 bars, 73 psi
Max. pressure 9.7 bars, 140 psi
Rated payload at service pressure 5200 lt/min, 185 CFM
Cooling system Hydraulic oil (*)
Hydraulic system capacity 9 lt, 2.4 gal
Separator tank capacity 20 lt, 5.3 gal
(*) We recommend ROTAIR COMPRESSOR 46
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D185T4F-DB
DESCRIPTION TECHNICAL VALUES AND DATA
Length (Body) 1835 mm – 72.2 inches
Width 1030 mm – 40.5 inches
Height (with hood closed) 1530 mm – 60.2 inches
Mass 793 kg – 1748 lbs
Compression system Screw single-stage
Fuel tank capacity 90 lt – 23.75 gal
D185T4F-DB

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2.3 Technical characteristics of the engine
D185T4F-DB
DESCRIPTION
TECHNICAL VALUES AND DATA
Engine brand
Kohler / Lombardini
Type
KDI-1903-TCR – Turbo - intercooler
Number of cylinders
3
Fuel
Diesel
Cooling
By liquid
Power available
42 Kw (57Hp) @ 2600 RPM
Maximum revolutions per minute 2600 RPM
Minimum revolutions per minute 1700 RPM
Emissions
Stage IIIB - Tier 4 final
Engine oil tank capacity
9 lt, 2.40 gal
2.4 Technical characteristics of the electric battery
DESCRIPTION
TECHNICAL VALUES AND DATA
Rated voltage
12 VDC
Capacity
100 Ah
Discharge current
750 CCA
2.5 Service temperatures
DESCRIPTION
TECHNICAL VALUES AND DATA
Minimum ambient temperature limit
-10°C, 14°F
Maximum ambient temperature limit
+40°C, 105°F
Humidity limits
≤ 50% @+40°C, 105°F
Altitude
3280 feet above sea level

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NOTES:________________________________________________________________________________

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3 SYMBOLS AND WARNINGS
The pictograms and main warnings for the operators are reported below and are indicated by the following
denominations and symbols:
3.1 Hazards
WARNING
The pictogram calls attention to specific recommendations in order to prevent
damage.
WARNING FOR ELECTRICAL HAZARD
The pictogram calls attention to specific recommendations in order to prevent
damage.
WARNING FOR CRUSHING OR PERSONAL INJURY HAZARD
The pictogram calls attention to a likely hazardous situation with risk of crushing
the upper limbs.
WARNING HAZARD OF PARTS IN MOTION
The pictogram calls attention to the hazard of parts in motion.
WARNING FOR RISK OF SCALDING OR HAZARD DUE TO HIGH-TEMPERATURE
PARTS OR AREAS
The pictogram calls attention to the hazard of high-temperature parts or areas and
risk of scalding.
WARNING OF OVERHANGING LOADS
The pictogram calls attention to hazards due to the presence of overhanging loads
WARNING OF THE PRESENCE OF PRESSURE TANKS
The pictogram calls the attention to the presence of pressure tanks.
WARNING:
OVERHANGING
LOADS

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3.2 Safety Precautions and Warnings
DO NOT REMOVE THE PROTECTION EQUIPMENT OR GUARDS
The pictogram instructs that the users SHOULD NOT remove protective
equipment such as fixed, movable, and interlocking guards and SHOULD NOT
tamper with photocells or photocell barriers.
DO NOT PERFORM CLEANING OR MAINTENANCE WHEN THE MACHINERY IS IN
OPERATION
The pictogram warns the user AGAINST performing cleaning or maintenance
operations with parts in motion.
DO NOT WALK UNDER OVERHANGING LOADS
The pictogram instructs the user to avoid walking under overhanging loads.
DO NOT OPERATE THE MACHINERY WHEN THE HOOD IS OPEN
DO NOT REMOVE THE
SAFETY DEVICES
DO NOT REPAIR OR
ADJUST WHEN IN
MOTION

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3.3 Recommendations and notices
NOTICES
This symbol recommends consulting the manual before undertaking a given
action.
RECOMMENDATION TO USE THE PPE (PERSONAL PROTECTION EQUIPMENT)
The pictogram expresses the necessity of using personal protection
equipment.
NOTICES:
This symbol highlights that the description involves significant parts, since they may
cause severe mechanical and electrical damage and malfunctions if the relevant
standards are not complied with. It is recommended to comply with the information
contained in this manual and with the law provisions in force as related to health and
safety at the workplace.
HIGHLIGHTING OF THE HOOKING POINT TO LIFT THE MACHINERY
REQUIREMENT TO USE THE SUPPORT FOOT, PARKING BRAKE, AND WHEEL
LOCKING WEDGES
3.4 General notices
This manual includes the user's and routine maintenance instructions for the machinery. Whenever it is not
otherwise specified, the operation and maintenance actions are to be considered "specialized", meaning
they can only be performed by a technician appointed for that purpose.
Before undertaking any operation on the machinery, carefully read this manual.
ROTAIR S.P.A. declines any responsibility for any operation performed in conflict with the contents of this
document. Before utilizing the machinery, carefully read this document and comply with the safety laws,
regulations, recommendations, and standards in force. This manual and the annexed documents must be
considered as an integral part of the machinery they refer to and must always accompany the machinery,
even if the latter is transferred to another user. It is therefore appropriate to preserve them for further
reference.
This manual and the annexed documents are specific to the machinery they have been drafted for.
Do NOT utilize this manual and the other included documents on similar machinery
even of the same brand or type.
THE USE OF THE
PERSONAL PROTECTION
EQUIPMENT IS
MANDATORY

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ROTAIR S.P.A. is available to its customers for any further information. Please report the information (type of
machinery, model, and code) found on the machinery identification nameplate. All of the specific data not
indicated in the text are mentioned in the chapter "Technical Specifications of the Machinery" as well as in the
technical annexes of this user's and maintenance manual.
This manual thoroughly describes:
-The information relevant to, lifting, and parking of the machinery
-The general rules and recommendations useful for routine and extraordinary maintenance
-The procedures to identify and order the parts
Remark: the instructions for the appropriate use of the engine are described in the manual drafted by the engine
manufacturer.
This manual must be preserved with care in its folder, far from sources of humidity, heat, and sun rays so that
it can be consulted at any time by both the personnel appointed to its use and by those who need to perform
routine and extraordinary maintenance. This machinery has been exclusively designed and manufactured to
deliver compressed air in the conditions stated by the manufacturer. Every other utilization not mentioned in
the "expected uses" shall relieve the manufacturer from any liabilities, which will be at full liability of the user.
“Approved purpose" assumes compliance with the recommendations reported and related to the appropriate
use and maintenance, as well as to the transport of the unit. All of the accident prevention regulations and
standards in force need to be complied with as well, besides complying with the general rules in terms of
safety and occupational medicine which are governed by the legislation in force.
The manufacturer declines any responsibility in case of changes made on the machinery without its
authorization. Before commissioning, the buyer must ascertain that ANY equipment or machinery,
components, and protection installations that are not part of this machinery comply with Machine Directive
2006/42/CE and to the other applicable European Directives (2006/95/CE - 2004/108/CE, etc.).

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Revision
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Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.P.A.
Its full or partial reproduction is forbidden under any form, on any support and by any means, without the
written authorization by ROTAIR S.P.A.
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4 USE OF THE MACHINERY
4.1 Use allowed
The machinery described in this manual is the air compressor D185T4F-DB and is allocated to work outdoors.
The air compressor is a piece of machinery with the capacity of generating a given quantity of compressed air
in l/m by using a diesel engine as its power source.
The pneumatic energy finds applications in different fields of use where "pneumatic" operated tools,
accessories, and equipment are utilized, for instance: demolition hammers, drilling hammers, vibrators, drilling
machines, rammers, coating machines, etc. Each of these tools/accessories has its own consumption of
compressed air expressed in liters per minute. The optimum coupling between the compressor and the tool is
achieved when the compressed air consumption does not exceed 85% of the air generated by the
compressor. Furthermore, it must be taken into consideration that the quantity of compressed air required by
the tool shall increase over time proportionally to the wear of the tool itself.
The correct compressor-tool coupling ratio allows the machinery to operate in optimum conditions as
appropriate to ensure long life-span at the highest performance. An oversized tool, besides creating
unfavorable conditions for the appropriate operation of the machinery shall not develop full performance,
since it cannot be supplied with required quantity of compressed air.
This machinery has been designed to work at ambient temperatures ranging from -10°C (14°F) to +40°C
(105°F).
WARNING: It must be recognized that the compressed air generated by this unit
may contain some very fine traces of oil; therefore, it is not appropriate to be utilized
with those systems that call for fully oil-free air (e.g..: food processing and
pharmaceutical industry, transports of flours and powders, cement, etc...).
4.2 Use not allowed
Using the machinery for other processes than those which are mentioned in the section above is not allowed.
ROTAIR S.P.A. declines any responsibility as related to injuries or accidents due to lack of compliance with
the specific provisions for use.

USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
03
Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.P.A.
Its full or partial reproduction is forbidden under any form, on any support and by any means, without the
written authorization by ROTAIR S.P.A.
Page
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4.3 Residual risk
Avoid standing in front of the compressed air discharge ports. The direct exposure to the air
stream may cause severe injuries due to the strength and speed of the compressed air.
The machine must operate outdoors because of the presence of the engine and the relevant
exhaust gases.
DO NOT operate the machine in an indoor environment that has an atmosphere containing
vapors or mixtures of corrosive or explosive gases.
When performing demolition, drilling, sandblasting activities, or any other operation that generates dust, the
tool needs to be connected to the compressor through a pressure-resistant hose of sufficient length to keep
the machinery away from the work area, thus preventing clogging of both the air filters mounted on the unit or
the radiator for the cooling of the lubrication and engine cooling systems. Even in this case, an educated user
will operate the machinery an appropriate distance away from the work area.
The machinery has been designed and built to work with the hood closed and, consequently, DO NOT keep
it open when the engine is on because besides generating harmful sound emissions, the required internal
ventilation would be interrupted, and possible damage to the machine may result.
Make sure that the hood is closed and the latches located on the rear side of the air compressor are latched.
Figure 4.3-1 Engine compartment hood latches
When selecting the hoses to connect the machinery to the tool, make sure that they are sized appropriately,
taking into account their length, the volume of air which needs to pass through them, and the service
pressures. If the hoses are too small in diameter or too long in length, the air flow would be interrupted, with
subsequent loss of load and poor performance of the tool.
The hoses, which transmit compressed air from the machinery to the tool or to any device applied, are to be
provided with a valve located at the end which is connected to the tool. The air valve shall be held closed
during the connection of the hoses to both the machinery and the tool in order to prevent an accidental
opening of the air valve on the machine side and to prevent an uncontrolled whipping of the hoses, which
may cause injuries. Before disconnecting any hose, make sure there is no pressure inside.

USER'S AND
MAINTENANCE
MANUAL
Date:
01/31/2020
Code
MAN D185T4F-DB
ENG
Air Compressor : D185T4F-DB
Revision
03
Copyright © 2014, ROTAIR S.P.A. - All rights reserved. This manual is intellectual property of ROTAIR S.PA.
Its full or partial reproduction is forbidden under any form, on any support and by any means, without the
written authorization by ROTAIR S.P.A.
Page
20/59
5 LEVELS AND QUALIFICATIONS OF THE PERSONNEL
The operation, service, and maintenance of the machinery must be performed by qualified, trained,
and informed personnel only. "Qualified personnel" means people who, based on their
profession, have acquired experience and instructions as well as knowledge on the relevant
standards and recommendations on accident prevention and operational conditions. Such
personnel, appointed by the machinery safety managers, must be able to perform the
required operations as well as recognize and anticipate the potential hazards.
Entrust the activities to appropriately trained or instructed personnel only; determine unmistakably the
competence of personnel as related to the fine-tuning and the maintenance and repair activities. Define the
responsibility of the operators appointed to run the equipment through accurate written recommendations
and authorize them to reject recommendations by third parties if in conflict with the safety regulations and
standards of the machine manufacturer. Ensure that the activities are performed by purposely-appointed
personnel only. The actions on the electrical equipment of the machinery can be performed in compliance
with the electro-technical regulations and standards by qualified electricians or by people with an appropriate
level of competence in the electro-technical field. The mechanical and pneumatic maintenance can be
performed by the technicians of the authorized service centers.
6 SAFETY RECOMMENDATIONS
6.1 Safety provisions concerning transport
The air compressors that are not certified for towing need to be loaded onto another means of transport.
The air compressor has to be attached appropriately to the loading deck of the transport vehicle in such a
way to prevent an unbalancing of the load during transport.
The unit is shipped by ROTAIR and attached to a support appropriate for its handling by means of fork-
lift trucks; such wooden platforms facilitate the anchorage to the loading deck of the transport vehicle
and prevents the load from sliding.
For safe transport, operate as follows:
1) Make sure the tie-downs pass over the air compressor and tighten them by means of the winches provided
with the means of transport.
2) Set blocks or wedges on all sides of the air compressor, attaching them to the loading deck of the vehicle
in order to prevent the machinery from moving.
3) Travel at moderate speeds.