Mea SMAC 90-H Owner's manual

7215-D0006-03
SMAC 90-H
(7251)
Owners & Operators Manual
SERVICE MAINTENANCE AIR
COMPRESSOR – HYDRAULIC DRIVEN
Revision: 3
Reviewed: 20/02/2019

Document No 7215-D0006-03
THIS PAGE IS LEFT BLANK
INTENTIONALLY.

Document No 7215-D0006-03
MEA Product Registration Form
THIS FORM MUST BE COMPLETED AND
RETURNED WITHIN 30 DAYS OF INSTALLATION
OR
WARRANTY WILL BE VOID

Document No 7215-D0006-03
MEA Product Registration Form
This form must be completed and returned to MEA at the time of
Installation. Warranty will be void if this form is not received by MEA
within 30 days of installation.
MEA Dealer Information
Company Name: _____________________________________________________________
City: _______________ State: ___________________ Country : ___________________
MEA Installer Information
Company Name: ______________________________________________________________
City: _______________ State: ___________________ Country : ___________________
Installation Date: _______ / ________ / ______
Day Month Year
Owner Information
Company Name: ______________________________________________________________
Address: _____________________________________________________________________
City: _______________ State: ___________________ Country : ___________________
Postcode: _________________________ Phone #: ________________________________
Product Information
MEA Serial Number: __________________________________________________________
Model Number: _______________________________________________________________
CUT HERE

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TABLE OF CONTENTS
1.PRODUCT SAFETY .................................................................................................. 2
2. INTRODUCTION ....................................................................................................... 4
3. SPECIFICATIONS .................................................................................................... 5
4. OPERATING PROCEDURE ..................................................................................... 6
5. INSTALLATION ........................................................................................................ 7
6. SCHEDULE MAINTENANCE ................................................................................... 9
7. TROUBLESHOOTING ............................................................................................ 10
8. SPARE PARTS ....................................................................................................... 12
9. DRAWINGS AND ILLUSTRATIONS ...................................................................... 13
10. WARRANTY ......................................................................................................... 26
MOBILE ENERGY AUSTRALIA CONTACTS
APPENDIX - A COMPRESSOR INFORMATION
The MEA Product Warranty Registration form (located at the FRONT of this
Manual) is to be returned to MEA.
FAILURE TO RETURN EITHER FORM MAY RESULT IN THE PRODUCT
WARRANTY BEING VOID.

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1. PRODUCT SAFETY
(COMPRESSOR / COMPRESSED AIR)
MEA DISCLAIMS ALL LIABILITIES FOR DAMAGE OR LOSS OF EQUIPMENT AND PROPERTY,
PERSONAL INJURIES (INCLUDING DEATH), AND CONSEQUENTIAL DAMAGES ARISING OUT OF
ANY MEA SYSTEM NOT USED IN ACCORDANCE WITH THE OPERATOR’S MANUAL.
ALL UNITS ARE SHIPPED WITH A DETAILED OPERATOR’S MANUAL. THIS MANUAL CONTAINS
VITAL INFORMATION FOR THE SAFE USE AND EFFICIENT OPERATION OF THE UNIT. READ THE
OPERATOR’S MANUAL BEFORE STARTING THE UNIT. FAILURE TO ADHERE TO THE
INSTRUCTIONS COULD RESULT IN SERIOUS BODILY HARM OR PROPERTY DAMAGE.
Care is required when working with an air compressor or compressed air. Compressed air is one of the many
ways energy can be stored. Releasing the stored energy in an uncontrolled manner can result in catastrophic
consequences. Death and permanent disability are possibilities that can occur due to mis usage. The
following are suggested as minimum precautions to be used when operating the SMAC Air Compressor. It
is important that each work site shall perform a risk analysis and produce a procedure to eliminate or control
the hazardous condition to minimise the risk to personnel and equipment. Health and Safety Regulations
necessitate that this is a compulsory process to be carried out on each site. These, together with site specific
safety procedures will help to minimize the risk to accidents, personnel injury and loss of life. It is the
responsibility of the employer to ensure that the work site is safe for all employees and that the safety
procedures are followed by all employees.
SAFETY WHEN OPERATING AN AIR COMPRESSOR
• Do not bypass or disable the oil temperature and pressure sensors – unless planning on running to
failure (MEA does not recommend the practice).
• Do not expose the tank or compressor to extreme heat.
• Do not perform any service or repairs until the system has been completely relieved of air pressure.
• Maintenance and repairs on the system should only be done by qualified personnel.
• Do not operate the compressor while driving (vehicle mounted systems).
• Do not tamper with the pressure relief valve.
• Follow safe work practice, wear the appropriate personal protective equipment (PPE) when operating
air-powered equipment, particularly eye and hearing protection.
• Avoid contact with rotating components, ensure all safety guards are in place.
• Avoid all contact with pressurized air. If it penetrates the skin, it can enter blood stream and cause
death.
• Vaporized oil propelled by high pressure is an explosive mixture. To prevent compressor explosion
or fire, make sure that the air entering the compressor is free of flammable vapours.
• Do not breathe the compressor air, vaporized oil is a respiratory hazard.
• Stay clear of all moving parts when the system is operating.
• Follow safety procedures for service operations as set by the authority.
• Run the system at idle speed and under no load conditions for 2 to 3 minutes before turning the
system off to allow system cooling and lubrication to occur.

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PRODUCT SAFETY - continued
HYDRAULIC SAFETY
ALL HYDRAULIC EQUIPMENT MUST BE TREATED WITH EXTREME
RESPECT AND CARE. AS THE WORKING FLUID IS UNDER EXTREME
PRESSURE, UP TO 5000PSI, WITH HIGH FLOW RATES GENERATING
HIGH HEAT, ALL APPROPRIATE SAFETY PRECAUTIONS MUST BE
TAKEN IN TO ACCOUNT AND SAFETY EQUIPMENT MUST BE WORN IF
IN CONTACT WITH THE EQUIPMENT UNDER OPERATION. ALL LEAKS,
NO MATTER HOW MINOR, MUST BE RECTIFIED IMMEDIATELY AND
ANY WEAR IN THE HOSES MUST BE ADDRESSED AND EQUIPMENT
REPLACED. HYDRAULIC INJECTION IS DANGEROUS AND LIFE
THREATENING AND EVEN A PINHOLE LEAK WILL BLANKET AN ENTIRE
ENCLOSED SPACE VERY QUICKLY WITH HAZARDOUS VAPORISED
HYDRAULIC OIL MIST.

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2. INTRODUCTION
This MEA vehicle mounted air compressor system utilizes the available hydraulic power for the running of the
installed compressor to supply compressed air at the specified flow rate and pressure.
This MEA vehicle mounted air compressor system utilizes the available hydraulic power for the running of the
installed compressor to supply compressed air at the specified flow rate and pressure.
This Manual contains vital information of the compressor system and its integration into the existing hydraulic
system to ensure that it is operated in a safe and efficient manner.

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3. SPECIFICATIONS
Compressor Model: EVO3-NK-G
Compressor Type: Oil flooded rotary screw compressor
Hydraulic Motor Type: 32cc Gear Motor
Control: 24V/12V Electronic Control
Maximum Air Delivery: 90cfm @ 100psi
Pressure Regulation: Mechanical Inlet control valve modulates flow in response to demand
Safety Features: 200 PSI relief valve in compressor sump
Temperature safety sensor in compressor
Rapid blow-down valve to discharge system pressure on shutdown
Lubrication: MEA Certified and Approved synthetic Oil
Filters: Paper-type replaceable air filter
Spin-on type oil filter
Coalescing separator element

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4. OPERATING PROCEDURE
WARNING
CAREFULLY READ THE OPERATING INSTRUCTIONS BELOW. FAILURE
TO ADHERE TO THE FOLLOWING COMPRESSOR OPERATING
INSTRUCTION COULD RESULT IN SERIOUS INJURY.
1. Check Oil Level (refer to page 66)
2. Check Hoses and fittings for leaks. Make sure the hoses are not loosened nor damaged.
3. Check and make sure hydraulic supply/return/drain (if applicable) are installed correctly.
4. Check Air Filter for Blockage.
5. Check the Safety circuit switch operation (Reset Switch).
6. Switch on the vehicle and activate the vehicle flow control (turn PTO on).
7. Turn on the compressor either at the control box or in the cab and ensure it is in the unloaded state
(check load/unload switch).
8. Turn on the unload/load switch to load and see if the compressor builds pressure to the regulated
setting.
9. Plug an air tool into the air outlet and operate. Ensure that the compressor works as required.
10. When the work is finished, switch the compressor to unload.
11. Switch off at either the control box or in Cab and switch off the vehicle.
12. It is good practice to check for any visible signs of hydraulic fluid leakage and or compressor fluid
leakage after each use.

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5. INSTALLATION
The SMAC90H is designed as an integrated compressor system for connection to an existing hydraulic
system. SMAC90H only requires connection of a pressure line in, a return line out and a connection of
the motor drain line (if applicable) to the tank.
WARNING(!) When setting the compressor unit up, ensure there is a safety mechanism in place to
prevent any excessive flow or pressure into the compressor hydraulic circuit. MEA will not warrant
any damage caused and will void warranty due to inadequate safety protection of the existing hydraulic
system.
1. Install SMAC90H into position on the vehicle using 4 x min. M12 x 1.75 Grade 8.8 Fasteners.
2. Install the hydraulic lines, i.e. pressure in, return out and drain line.
3. If purchased the Frameless version only; install the cooler and connect the compressor cooler lines to
both the cooler and the compressor, see APPENDIX A, Page 39.
4. Connect the electrical control box to the vehicle; be sure to place an in-line weatherproof fuse
(30A – 12V and 20A – 24V) within 300mm of the vehicle battery. Ensure the control box is
compatible with your vehicle’s voltage rating.
5. Connect the pressure gauge line to the SMAC90H, see circuit diagram (Page 21)
6. Connect the terminals of the electrical loom as per the circuit diagram relevant to your vehicle
to both the vehicle and the SMAC90H.
7. Check the level of oil in the compressor.
8. Switch on the vehicle, turn on the compressor at the control box and test the hydraulic
solenoid for operation.
9. Turn the unload/load switch to load and check the compressor builds pressure to the regulated
pressure setting.
10. Plug an air tool into the air outlet and operate checking that the compressor works as
required, run for a min. 10mins.
11. Unload the compressor, switch off the control box, switch off the vehicle and check for any
visible signs of hydraulic fluid leakage.
12. When cool (safe to touch), and switched off, re-check compressor oil level

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6. SCHEDULE MAINTENANCE
Maintenance schedules are given as per components’ manufacturer standards under normal operating. If the
operating conditions deviate from standard (such as severe environmental conditions), it is necessary to take
steps for the affected areas to be maintained at shorter intervals.
For details on maintenance procedures, consult “Compressor Information (APPENDIX-A)”.
Before first start
Check the oil level in the separating tank
Periodically
Observe all gauge readings. Note any change from the normal
readings and determine the cause. Have the necessary repairs
made.
(Note: “Normal” is the usual gauge reading when operating at
similar conditions on a day to day basis.)
Periodically or as required
Inspect and clean oil cooler fins.
Check system for oil and/or air leaks.
Inspect and replace spin-on coalescing element if necessary
Once after 50 operating hours
Check the oil level in the separating tank
Tighten all screw pipe fittings and electrical screw terminal fittings.
Check all other connections for firm seating
Every 100 hours
System Inspection:
(1) Check oil level in separating tank, top up is oil is low
(2) Check maintenance indicator (if applicable)
(3) Listen for abnormal running noise during operation
(4) Check all lines, hoses, and screw fittings for leaks and
externally visible damage
Every 1,000 Hours depending on
application
Recommendation:
at least every 12 months (if
operated in dusty environment,
shorter frequency or as required)
Changing the air-oil separating element
Carry out oil change
Replace oil filter
Replace filter element in intake air filter
Check system for leaks
Clean the system
Every 2 years with increased
demand (multi-shift operation,
mobile unit)
Replace hose (if attached to the compressor module)
Every 6 years
with normal demand
Replace hose (if attached to the compressor module)

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7. TROUBLESHOOTING
(Detailed procedures on troubleshooting of the compressor system can be found in “Compressor
Information (APPENDIX-A)”.
Fault
Possible cause
Remedy
Not functioning
Control box or electrical
connection faulty
Have control box or electrical
connection repaired. Incorrect
rotation direction Phases reversed
Reconnect
Incorrect rotation direction
Hoses are connected wrongly
Reconnect supply and return hoses
Screw compressor system
has difficulty starting
Flow and pressure not
insufficient
Inspect
Drive transmission ratio too fast
Check flow and pressure
Star-delta switchover incorrect
Set
Compressor is flooded with oil
Check
System has not been
depressurized yet
Check, depressurize if necessary
Ambient temperature too low
Check viscosity of the oil
Oil filling too viscous
Check viscosity of the oil
Pressure losses at
filter cartridges
Excessive pressure loss at
air-oil separating element
Replace air-oil separating element
Combistat switches off
due to excessively high
temperature
Oil shortage
Check the oil level in the oil
reservoir, fill if necessary
Oil filter soiled
Replace oil filter cartridge
Oil thermostat faulty
Replace oil thermostat
Oil cooler soiled
Clean oil cooler on air side, clean
on oil side if necessary
Incorrect setup
a) Room ventilation
b) Exhaust air obstructed
c) Thermal short-circuit
Follow recommendations for
installation of the compressor
system
Combistat defective
Replace combistat
Safety valve blows off
(at a permissible operating
pressure)
Safety valve defective
Replace safety valve
Air-oil separating element dirty
Replace air-oil separating element
Compressor system does not
switch off automatically, control
valve operates intermittently
Check the solenoid valve, replace
if necessary
Oil in compressed air
Operating pressure and
delivery quantity is not in the
permissible range
Check pressures
Oil exhaust system
contaminated
Clean oil extraction system
Air-oil separating element faulty
Check air-oil separating element
and replace if necessary
Oil level in oil reservoir
too high; possibly
excessive condensate
Observe oil level marking; drain
and replace if necessary
Compressor system is not
discharged during
continuous operation,
system does not switch off
automatically in case of
Upper switching point of
network pressure monitor set
too high
Readjust network pressure monitor
Solenoid valve defective
Relief valve defective
Replace solenoid valve/ relief valve

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intermittent operation, i.e.
safety valve blows off
Minimum pressure valve jams
Check minimum pressure valve for
smooth movement; if necessary,
ensure smooth movement or
replace
Compressor system
continually discharges, low
delivery quantity
Solenoid valve defective
Replace solenoid valve
Break in electric supply
line to solenoid valve
Eliminate break
No or insufficient feed
quantity
Intake filter soiled
Replace filter insert
Oil shortage
Check oil level, top up if necessary
Intake control valve jams
or is incorrectly positioned
Check control valve and control
valve flap, clean bearing and
guides, check stroke, replace if
necessary
Leaks in system
Check seal
Control valve does not
open
Compressor system leaky
Check system and seal off if
necessary
Solenoid valve/electrical
system, bypass valve, piston
gasket, and minimum pressure
valve not functioning
Check and replace parts
Control valve does not
control (two-point/step-less)
Pressure switch in system
is set incorrectly
Check setting, adjust and replace if
necessary
Oil escapes during stop
Sealing surfaces in control valve
damaged, spring in control valve
broken
Check and replace parts
Compressor system does
not discharge (discharge
time 100 - 200
seconds, depending on
separator size)
Solenoid valve/electrical
system not functioning
Check and replace parts
Control valve constantly
discharges
Solenoid valve/electrical
system not functioning
Check and replace parts
Oil escapes during
discharging
(oil foam in
air-oil separating element)
Oil type incorrect
Change oil
Oil foam forms during stop
Check and replace discharge delay
valve, with a different nozzle
diameter if necessary
Oil level too high
Drain off oil
Abnormal noise during
operation
Insufficient lubrication,
loose parts, damage to
drive, transmission,
bearings, or shaft, etc.
Check, if necessary, replace parts
or have them replaced

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8. SPARE PARTS
Part Number
Description
10008-P0024
AIR FILTER ELEMENT
10008-P0023
SPIN ON COALESCER
4001-P0025
MAINTENANCE REPAIR KIT SHAFT
10008-P0025
OIL FILTER
7201-KB0001
REGULATOR REPAIR KIT
*CONTACT MEA SALE DEPARTMENT FOR SPARE PARTS THAT ARE NOT CONVERED HEREIN.

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9. DRAWINGS & ILLUSTRATIONS
SMAC-90-H – GENERAL ARRANGEMENT DRAWINGS
`

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