MMD Equipment 185S-6C2 User Manual
Preface
Thank you for having selected our “AIRMAN” product.
◆ This manual explains about the proper operation and daily inspection and maintenance of this
machine.
◆ In order to use a machine safely, people with sufficient knowledge and sufficient technology need to
deal with it.
◆ Before operating the unit, read the manual carefully, fully understand its operation and
maintenance requirement. Maintain “SAFETY OPERATION AND PROPER MAINTENANCE OF
THE UNIT”.
Be sure to follow safety warnings and cautions given in the manual.
Unsafe operation could cause serious injury or death.
◆ For details of handling, maintenance and safety of the engine, see the Engine Operation Manual.
◆ Keep the manual available at all times for the operator or safety supervisor.
◆ If the manual is lost or damaged, place an order with your dealer for another copy.
◆ Be sure that the manual is included with the unit when it is handed over to another user.
◆ There may be some inconsistency in detail between the manual and the actual machine due to
improvements of the machine. Ask your dealer if you have any questions or problems.
◆ If you have any questions about the unit, please inform us the model and serial number. A plate
stamped with the model and serial number is attached to side of the unit.
◆ Each illustrated figure (Fig.) has a number
(for instance, A990054) at the right bottom. This
number is not a part number, but it is used only
for our reference number.
A990054
Table of Contents
1. Safety ------------------------------------------------------------------------------------------------ 1-1
1.1 Caution before Operation -------------------------------------------------------------------------------------------- 1-2
1.2 Caution during Operation -------------------------------------------------------------------------------------------- 1-5
1.3 Caution during Inspection and Maintenance -------------------------------------------------------------------- 1-7
1.4 Safety Warning Labels ------------------------------------------------------------------------------------------------ 1-10
2. Part Names ---------------------------------------------------------------------------------------- 2-1
2.1 Internal Components and Part Names ---------------------------------------------------------------------------- 2-1
3. Installation ----------------------------------------------------------------------------------------- 3-1
3.1 Transportation ---------------------------------------------------------------------------------------------------------- 3-1
3.2 Towing the Unit --------------------------------------------------------------------------------------------------------- 3-2
3.3 Installation --------------------------------------------------------------------------------------------------------------- 3-3
4. Operation -------------------------------------------------------------------------------------------- 4-1
4.1 Instrument Panel ------------------------------------------------------------------------------------------------------- 4-1
4.2 Lubricating oil・Coolant・Fuel ------------------------------------------------------------------------------------- 4-2
4.3 Check before Starting Unit ------------------------------------------------------------------------------------------- 4-4
4.4 Operation ----------------------------------------------------------------------------------------------------------------- 4-8
4.5 Ca p a c i t y C o n t r o l D e v i c e -------------------------------------------------------------------------------------------- 4-12
4.6 Stopping ------------------------------------------------------------------------------------------------------------------ 4-14
4.7 Air bleeding in fuel line ------------------------------------------------------------------------------------------------ 4-14
5. Periodic Inspection/Maintenance ---------------------------------------------------------- 5-1
5.1 Important Items as Periodic Inspection and Maintenance or after Maintenance ----------------------- 5-1
5.2 Daily Inspection and Operation Log ------------------------------------------------------------------------------- 5-2
5.3 Periodic Inspection List ----------------------------------------------------------------------------------------------- 5-3
5.4 Periodic Replacement of Parts ------------------------------------------------------------------------------------- 5-5
5.5 Maintenance Items ---------------------------------------------------------------------------------------------------- 5-6
6. Maintenance --------------------------------------------------------------------------------------- 6-1
6.1 Maintenance of Battery ----------------------------------------------------------------------------------------------- 6-1
6.2 Indicator lamp and Warning / Emergency display --------------------------------------------------------------- 6-3
6.3 Troubleshooting -------------------------------------------------------------------------------------------------------- 6-4
6.4 Adjustment of various data ------------------------------------------------------------------------------------------ 6-5
7. Storage of the Unit ------------------------------------------------------------------------------ 7-1
7.1 Preparation for Long-term Storage -------------------------------------------------------------------------------- 7-1
8. Specifications ------------------------------------------------------------------------------------- 8-1
8.1 Specifications ----------------------------------------------------------------------------------------------------------- 8-1
8.2 Outline drawing --------------------------------------------------------------------------------------------------------- 8-2
9. Wiring Diagram ----------------------------------------------------------------------------------- 9-1
10. Piping Diagram ----------------------------------------------------------------------------------- 10-1
10.1 Air piping･Compressor oil piping ----------------------------------------------------------------------------------- 10-1
10.2 Fuel piping ---------------------------------------------------------------------------------------------------------------
10-2
1.Safety
This manual explains and illustrates general requirements for safety.
Read all safety requirements carefully and fully understand the contents before
starting the machine.
For your better recognition, according to the degree of potential danger, safety
messages are classified into three hierarchical categories, namely, , ,
and with a caution symbol －attached to each message.
When one of these messages is shown, please take preventive measures and carry out
“SAFETY OPERATION AND PROPER MAINTENANCE OF THE UNIT”.
Follow warnings mentioned in this manual. This manual does not describe all
safety items. We, therefore, advise you to pay special attention to all items (even
though they may not be described in the manual) for your safety.
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury. This
signal word is to be limited to the most extreme situations.
WARNING indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
IMPORTANT indicates important caution messages for the
performance or durability of the unit.
1-1
1.Safety
u
c
1.1 Caution bef ore Operation
Compressed air by this unit contains poisonous
materials. Absorption of the compressed air can
cause serious injury. Never provide this compressed
air for human respiration.
This unit is not designed to be used for working
chambers pressurized by compressed air such as
respiratory air provided to persons working inside
wells and tunnels such as pneumatic engineering
method and pneumatic caisson method. Should this
unit stop operation due to trouble, it can cause death
and serous injury to the working persons. Refrain
from using the compressed air for such pneumatic
engineering method or pneumatic caisson method.
Compressed air is prohibited to be used for human respiration
TR0201-1
A080001
Read each instruction plate which is displayed in the
manual or on the unit carefully, understand its content
and follow the indications thereof.
Keep the Safety Warning labels clean. When they are
damaged or missing, apply new ones.
Do not modify the machine without prior approval. The
safety may be compromised, functions may be
deteriorated, or machine life may be shortened.
Never use the unit for the purpose of compression of
gases other than air, or as a vacuum pump. Otherwise,
serious accidents may occur.
Exhaust gas from the engine is poisonous, and could
cause death when inhaled.
Avoid using the machine in an insufficiently ventilated
building or tunnel.
Follow the safety instr
Ventilation
tions
TR0086
PC002
1-2
1.Safety
y
l
Keep flames away from battery.
Battery may generate hydrogen gas and may explode.
Battery electrolyte is dilute sulfuric acid.
In case of mishandling, it could cause skin burning.
When you deal with a battery, please be sure to wear protection
implements, such as protection glasses and a glove.
Dispose of battery, observing local regulations.
Cautions of hose attachment and remova
Piping or the hose from this machine service valve should use
what can be borne enough for the discharge pressure of this
machine.
Please connect piping or a hose to this machine service valve
firmly before operation and during operation. If the connection
part is loosening, there is a possibility of piping or a hose
separating and getting seriously injured.
Please remove after closing a service valve and extracting
pressure remained, in case piping or a hose is removed. If
pressure remained should remain, a near thing blows away or
there is a possibility of a hose whipping, causing a phenomenon
and getting seriously injured.
In order to use it safely, please read the handling of the work
tools often used.
When handling machine, do not wear;
Loose clothes
Clothes with unbuttoned sleeves
Hanging tie or scarf
Accessories such as dangling jewelry
Such outfit could be caught in the machine or dragged in the
rotating portion of the machine, and this could cause a serious
injury.
Handling batter
D004
TR0093
TR0088
TR0303A
Safety outfit
TR0084
1-3
1.Safety
Maintain both physicl and mental health
Do not operate the machine when you are tired or drunk or under the influence of drugs. Otherwise, a
hasty conclusion or careless handling may cause unexpected injury or accident.
Manage your physical and mental health and be cautious in handling the machine.
Protection equipments
Please wear protection implements, such as a helmet,
protection glasses, earplugs, safety shoes, a glove, and a
protection-against-dust mask, according to the contents of
work for safety.
Safety fittings
TR0085
Have first-aid boxes and fire extinguishers near the unit ready
for emergency situations such as injuries and a fire.
It is advisable to have a list of phone numbers of doctors,
ambulance and the fire department available in case of
emergency.
TR0096
Safety around the machine
Such things as unnecessary equipment and tools, cables, hoods, covers and pieces of wood which
are a hindrance to the job, have to be cleaned and removed. This is because operators and/o r
personnel nearby may stumble on them and may be injured.
Place safety enclosures at the entrance of and around working site to prevent childre n or outside
people from entering the site.
1-4
1.Safety
1.2 Caution during Ope ration
Do not, under any circumstance, open the oil filler cap of
separator receiver tank while running or immediately after
stopping operation.
It is very dangerous because the oil filler cap could be blown
off and high temperature compressed air and oil could jet out
from the filler port, and cause serious injury.
Do not, under any circumstance, open the portions below
during operation:
Separator receiver tank drain valve
Coolant drain valve and plug
Engine oil drain valve
Oil cooler drain valve
Fuel tank drain vale and plug
Do not replenish compressor oil during operation
Draining during operation prohibited
Never direct the compressed air to people and foods
W010
PK0028
Never blow compressed air directly at people.
Scattered impurities, dust, or foreign objects in the compressed
air may cause skin and eyes to be seriously injured.
Blowing compressed air on food is prohibited.
Hands off from rotating parts and belts
Keep hands off from the rotating portion or belts while running.
It could cause serious injuries if hands should be caught in.
Do not remove radiator cap during operation
Do not, under any circumstance, open the radiator cap while
running or immediately after stopping operation. Otherwise high
temperature steam jets out and this could cause scalding.
TR0092
TR0304
H990432
1-5
1.Safety
Operation with compressed air supply port opened
Do not operate the machine with service valves and relief
valve open unless air hoses and/or pipes are connected.
High-pressurized air blows out and its air pressure could
cause injury to the people nearby.
When the machine has to be unavoidably temporarily
operated with its port open, be sure to mount a silencer to
reduce noise and wear protective materials such as
earplugs to prevent damage to hearing.
Never work nearby hot portions of the machine while it is
running.
Do not touch hot portions of the machine while inspecting the
machine when running.
Such parts as engine, exhaust manifold, exhaust pipe,
muffler, radiator, oil cooler, compressor, piping, separator
receiver tank, and discharging pipe are especially hot, so
never touch those parts, because it could cause serious
burns.
Compressor oil, coolant water, and engine oil are also very
hot and dangerous to touch.
Avoid checking or refilling them while the unit is running.
Do not, under any circumstance, bring lit cigarettes or
matches near such oils as engine oil and compressor oil, etc.
They are extremely flammable and dangerous, so be careful
when handling.
Refilling oils should be done in an outdoor well-ventilated
place.
Refuel after stopping the engine, and never leave the fuel
nearby the machine. Do not spill. It may cause a fire. When it
is spilt, wipe it up completely.
Do not fill fuel oil up to the cap lever. When fuel tank is
filled up to the cap level, fuel oil will be overfilled due to
volume expansion caused by rise of ambient
temperature. Further, fuel will be possibly spilled from
fuel tank due to vibration caused during movement
and/or transportation of machine.
Such parts as muffler and exhaust pipe can be extremely hot.
Remove twigs, dried leaves, dried grass and waste paper,
etc. from the exhaust outlet of the muffler.
Keep a fire extinguisher available by the machine in case of
a fire.
is prohibited
D003
Do not touch hot parts
H990432
Fire prevention
D004
H990433
1-6
1.Safety
l
1.3 Caution during Inspection and Maintenance
Remove the starter key from the starter switch before
starting inspection, and hang up a “Now Checking and under
Maintenance” tag where it can be easily seen. The checker
must keep the key during checking and maintenance.
Remove the negative (–) side cable from the battery.
If the above procedure is neglected, and another person
starts operating the machine during check or maintenance, it
could cause serious injury.
When you refill the separator receiver tank with compressor
oil, stop the engine, and make sure that the pressure gauge
indicates 0psi(0bar) and there is no residual pressure in it,
and then gradually loosen the oil filler cap for refilling oil.
Note residual pressure in the separator receiver tank could
force both extremely hot compressed air and oil to jet out
and you may be scalded or seriously injured.
Hang a “Now Checking and under Maintenance” tag
Refilling of compressor oi
Be careful of high-pressurized air blowout
SY001
W010
After stopping the engine, make sure that pressure gauge
indicates 0MPa. Even when the gauge shows 0psi(0bar),
open a service valve and further do not fail to make sure that
there is no residual pressure in the air piping. Then start
such a job as repair and maintenance.
Residual air under pressure will blow off and severely injure
operator.
After stopping the engine, confirm that the pressure gauge
indicates 0psi(0bar) and there is no residual pressure in it,
then open the drain valve gradually to drain the compressor oil.
Note residual pressure in the separator receiver tank could
force both extremely hot compressed air and oil to jet out
and you may be scalded or seriously injured.
W010
Draining separator receiver tank
H990432
1-7
1.Safety
w
Be sure to stop the engine and remove the starter key
whenever the tension of the fan belt is to be adjusted.
Remove the negative (–) side cable from the battery.
If the machine is running, it might catch the operator’s hand
into the fan belts, and this could cause a serious injury.
Be sure to stop the engine and remove the starter key
whenever check or maintenance work is carried out near
the cooling fan.
If the cooling fan is rotating, it may catch the operator or part
of his body into the fan, and it could cause a serious injury.
Adjusting tension of fan belt
TR0304
Hands off from cooling fan
W009
Cleaning by air-blo
When cleaning dust accumulated in such devices as the
air-filter, by blowing compressed air, wear safety glasses,
etc. to protect your eyes.
It is recommended to use a lamp with safety guard fitted
where the site is dark.
Operating the machine gropingly or by relying on one’s
intuition could cause unexpected accidents.
Any lamps without safety guard are not recommended since
they can be broken and they could ignite flammables such
as fuel, etc.
Lighting apparatus
TR0206
M003
1-8
1.Safety
l
A
Be sure to stop the engine, and let the coolant water
sufficiently cool down before draining it.
If the drain valve is opened before the coolant water is
cooled enough, hot water could jet out, and it could cause
scalding.
After stopping the engine, wait for 10 to 20 minutes until
the engine oil cools off. Then check the level of the engine
oil, or refill or drain the oil.
Engine oil is very hot and highly pressurized during or just
after the operation. Hot oil could blow out of the tank and
can cause scalding.
Opening coolant water drain valve cap
H990432
Refilling or draining of engine oi
H990432
Fear of fire
Be sure to perform the periodical check of compressor oil
and oil separator.
Neglecting checks could cause overheat of the oil,
resulting in a fire.
Waste liquid from the machine contains harmful material.
Do not discharge it onto the ground or into the river, lake or
sea. Such material will contaminate the environment.
Be sure to use a container to hold the waste liquid from the
machine.
Be sure to follow the designated regulations when
disposing of oil, fuel, coolant (antifreeze), filter, battery or
other harmful materials.
H990433
Treatment of organic wastes
100285
1-9
1.Safety
1.4 Safety Warning Labels
Following labels are attached to the machine.
Keep them clean at all times. If they are damaged or missing, immediately place an order with your
nearest dealer for replacement. Part numbers are indicated on the lower right corner of the label.
Adhere a new one to the original location.
1 2 3 4 5
6 7 8 9 10
11 12
1-10
1.Safety
A
A
The pasting position of safe warning label is as follows.
2
4
8
10
11
100440E
3
1
6 7
-VIEW
A
5 8 9 5
12
1-11
2.Part Names
A
2.1 Internal Components and Part Names
1 2 3 4 5 6
No. Description Function
Oil separator For separating oil mist mixed in compressed air.
1
Pressure control
2
3 Safety valve
Air filter
4
(For Compressor air-end )
5 Speed regulator
6 Air filter (For engine)
Air bleeding electro7
magnetic pump
8 Fuel filter
9 Fuel tank
Engine oil filler port
10
Reserve tank
11
19 18 17 16 15 14 13
For keeping the separator receiver tank pressure higher than 58psi (4bar) in the tank.
For releasing compressed air to the atmosphere when the pressure rises
higher than the rated pressure.
For filtering the dust floating in the intake air.
For regulating air-end revolution speed.
For filtering the dust floating in the intake air.
For automatically bleeding air from fuel pipes.
For filtering dust and foreign matter mixed or to be mixed in the
fuel oil.
For storing diesel fuel oil.
For supplying and replenishing engine oil to engine.
For checking engine cooling water level and for replenishing cooling water.
7
8 9 10
11 12
100441
12 Radiator
13 Sedimenter
Engine oil filter
14
Engine oil level gauge For checking engine oil level.
15
Solenoid valve for
16
starting unloader
17
Fuel tank drain valve
18 Pressure regulator
19 Battery
For cooling the coolant for engine because it is water-cooled.
For separating water mixed or to be mixed in the fuel oil.
For filtering engine oil.
Control device for reduction of power under unloaded operation.
For draining condensate accumulated in fuel tank.
For regulating intake air volume.
For electrically starting engine.
2-1
2.Part Names
A
20 21
22 23
24
31 30 29 28
No. Description Function
Oil cooler
20
21 Engine
Compressor oil filter
22
23 By-pass valve
24 Air-end
Separator receiver tank
25
drain valve
26
Compressor oil filler port For supplying and replenishing compressor oil.
27
Compressor oil level gauge
28 Engine oil drain valve
29 Coolant drain valve
Oil cooler drain valve For draining compressor oil out of oil cooler and oil lines.
30
Exhaust muffler Equipment which muffles an engine exhaust sound.
31
For cooling compressor oil circulating in the system.
For driving the compressor.
For filtering compressor oil circulating in the system.
For keeping compressor oil at proper temperature.
For compressing intake air.
From this portion where condensate is drained out of separator-receiver tank.
Scale for measuring compressor oil level.
For draining engine oil for replacement of it and for maintenance.
For draining condensate from engine.
27 26 25
100442
2-2
3. Installation
A
A
3.1 Transportation
When loading and unloading unit, be sure to use the lifting bail provided on the center of the unit top.
Never get under the unit which is lifted up, because it is very dangerous.
When unit is transferred or moved from working site, be sure to place it on truck bed, and fasten it by
ropes at the front eye and rear stand.
Never lift unit which is still in operation, or it could cause critical damage to each component or lead to
serious accident.
3.1.1 Lifting up
① Before lifting the unit up, make sure to check
the lifting bail for any crack and loosened
bolts.
② Connect the hook“1” of the crane or shackle
with lifting bail“2”eye fitted at the top center
of the unit, and make sure that there is no
person standing around the unit. Then
perform hoisting operation.
③ Select a truck or a crane with capacity
sufficient for weight and size of the unit by
referring to the values shown in Chapter 8
“Specifications“ of the manual.
1
Transportation
2
3.1.2 Mounting the unit on the truck bed
Be sure to fasten the unit with ropes“1” as
shown in the right figure,and securely fix it on
the truck bed.
Be sure to put one set of chocks“2”to
the wheels.
1 2
100460
1
100461
3-1
3.2 Towing the Unit
3. Installation
When towing unit, make sure there is no person or obstacle at
both front and rear sides and under the unit.
Although the machine is designed to be drawn, drawing is
allowed only in construction site.
Towing speed should be within 12.4mile/h.
When drawing the compressor, make sure to retract the castor.
Drawing the compressor with the castor not retracted, and
drawing it using the castor can lead to serious accidents or
damaged to the castor.
H000045
Be sure to use a vehicle with enough capacity to tow the unit in operating weight.
Standard pressure for a tire is at 65psi (4.5bar).
Be sure not to use wrong size or type of tire in changing.
Make sure that the end of the drawbar is so surely and firmly connected to the coupler of the towing
vehicle that the disconnection may not occur while the unit is being towed.
Make sure if there is no deform or damage on the drawing vehicle and the drawbar of the unit.
Be sure to keep your hand or finger away from any part of the coupling device when coupling or
uncoupling a drawing device to a draw bar.
Be sure to drive the drawing vehicle safely, avoiding dangerous place or ground, if any.
If you do not follow the above instructions, it could cause serious injury or big damage.
Caution for towing unit
3-2
3. Installation
A
A
3.3 Installation
Exhaust gas from the engine is poisonous, and could cause
death when inhaled.
Avoid using the machine in an insufficiently ventilated
building or tunnel.
Do not position the exhaust gas outlet in direction of a
person or a house.
The machine should be operated in following conditions:
Ambient temperature
Humidity
Altitude
･････････････････
･･････････････････
･･･････
5°F to 104°F( -15℃～＋40℃)
Less than 90%
Lower than 4,921ft above sea level
Install the machine in a place with good ventilation, lower temperature and with surroundings as
dry as possible.
If more than two machines are placed parallel in operation, keep enough distance so that exhaust
air from one machine does not effect the other one.
Also, a machine has to be installed in the environment where fresh air is always available.
Keep enough space around the unit for inspection and maintenance access.
PC002
3.3.1 Installation
The machine has to be parked horizontally on a
level place.
In case the machine has to be parked on a slope,
place it across grade so that the machine does
not tend to roll downhill.
Following grades on a slope for the machine are
recom- mended within 15° degrees.
In case of trailer type, be sure to put one set of
chocks “1” to the wheels.
3.3.2 Service valve
Discharge port : 20A(Rc3/4B)×2
1
[Taper male screw]
Installation
100462
100443
3-3
4.Operation
4.1 Instrument Panel
Each display of the operation panel is illustrated as follows.
Read and fully understand the explanations and be sure to operate safely:
When this switch is pushed on while lamp is
blinking, it shows error code. When starter switch is
placed to “STOP”, displayed screen is reset.
Auto idle switch (with indicator lamp)
This switch is used when fuel consumption
is minimized at no load operation.
When power is supplied, revolution speed (lamp lighting) is indicated.
[ENG.SPEED]
(min-1)
Whenever indication selector switch is pushed every time, indication
screen is changed by turns as shown above.
[DISCHARGE TEMP.]
(°F)
Push
Error code / Reset switch
Discharge air pressure gauge
For indication of working
pressure
Digital monitor
[WATER TEMP.]
(°F)
Push
Push
Starter switch
For starting and
stopping engine
[HOUR METER]
（Hr）
A100444MMD
Push
[COMPRESSURE LOAD FACTOR]
(％)
[SERVICE PRESSURE]
（
PSI）
In case that discharge air temperature is below 68°F, “－－－L” is indicated on screen.
In case the compressor load factor is more than 50%, “b－－－” is indicated on screen.
The indication of service pressure / the compressor load factor is displayed only at the time
of purge driving.
4-1
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