AirMan PDSH850S-4B2 User manual

Preface
A990054
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 of 7
digits (for instance, A990054) at the right
bottom. This number is not a part number, but
it is used only for our reference number.

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 Handling the Drawbar --------------------------------------------------------------------------------------------------------
3-2
3.3 Towing the Unit -----------------------------------------------------------------------------------------------------------------
3-3
3.4 Installation -----------------------------------------------------------------------------------------------------------------------
3-4
3.5 Compressed Air Service Valve ---------------------------------------------------------------------------------------------
3-5
4. Operation---------------------------------------------------------------------------------------------------- 4-1
4.1 Features of this unit ----------------------------------------------------------------------------------------------------------- 4-1
4.2 Instrument Panel ---------------------------------------------------------------------------------------------------------------
4-2
4.3 Door -------------------------------------------------------------------------------------------------------------------------------
4-4
4.4
Lubricating oil・Coolant・Fuel ---------------------------------------------------------------------------------------- 4-5
4.5 Check before Starting Unit --------------------------------------------------------------------------------------------------
4-7
4.6 Unit Operation ------------------------------------------------------------------------------------------------------------------
4-11
4.7 Stopping Procedures ---------------------------------------------------------------------------------------------------------
4-17
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 Inspection on Separator Receiver Tank ----------------------------------------------------------------------------------
5-2
5.4 Periodic Inspection List -------------------------------------------------------------------------------------------------------
5-3
5.5 Periodic Replacement of Parts ---------------------------------------------------------------------------------------------
5-4
5.6 Maintenance --------------------------------------------------------------------------------------------------------------------
5-5
6. Maintenance/Adjustment ----------------------------------------------------------------------------- 6-1
6.1 Maintenance of Battery ------------------------------------------------------------------------------------------------------- 6-1
6.2 Troubleshooting ----------------------------------------------------------------------------------------------------------------
6-3
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

1.Safety
1-1
This manual explains and illustrates general requirements for safety.
Read all safety requirements carefully and fully understand the contents before start-
ing the machine.
For your better recognition, according to the degree of potential danger, safety mes-
sages 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”.
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.
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.

1.Safety
1-2
TR0201-1
A080001
TR0086
PC002
1.1 Caution before 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.
 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.
Compressed air is prohibited to be used for human respiration
Follow the safet
y
instr
u
c
tions
Ventilation

1.Safety
1-3
Handling battery
 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 protec-
tion implements, such as protection glasses and a glove.
 Dispose of battery, observing local regulations.
Cautions of hose attachment and removal
 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 phenome-
non and getting seriously injured.
 In order to use it safely, please read the handling of the work
tools often used.
Safety outfit
 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.
TR0084
TR0093
TR0088
D004
TR0088
TR0303A

1.Safety
1-4
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, protec-
tion glasses, earplugs, safety shoes, a glove, and a protec-
tion-against-dust mask, according to the contents of work for
safety.
TR0085
Safety fittings
 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, am-
bulance and the fire department available in case of emer-
gency.
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/or per-
sonnel nearby may stumble on them and may be injured.
 Place safety enclosures at the entrance of and around working site to prevent children or outside
people from entering the site.
TR0096

1.Safety
1-5
TR0092
1.2 Caution during Operation
Do not replenish compressor oil during operation
 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.
Draining during operation prohibited
 Do not, under any circumstance, open the portions below dur-
ing operation:
 Separator receiver tank drain valve
 Coolant drain valve and plug
 Engine oil drain valve
 Oil cooler drain valve
 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.
 Keep hands off from the rotating portion or belts while running.
It could cause serious injuries if hands should be caught in.
 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.
W010
PK0028
Never direct the compressed air to people and foods
Hands off from rotatin
g
parts and belts
Do not remove radiator cap during operation
TR0304
H990432

1.Safety
1-6
H990432
W005
H990433
 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.
 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.
Operation with compressed air supply port opened
is prohibited
D003
Do not touch hot parts
Fire prevention

1.Safety
1-7
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 0MPa 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.
 After stopping the engine, make sure that pressure gauge
indicates 0MPa. Even when the gauge shows 0MPa, 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 0MPa 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.
Han
g
a “Now Checkin
g
and under Maintenance” ta
g
SY001
Refillin
g
of compressor oi
l
Be careful of hi
g
h
-
pressurized air blowout
W010
W010
Drainin
g
separator receiver tank
H990432

1.Safety
1-8
TR0304
W009
M003
TR0206
 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.
 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.
Ad
j
ustin
g
tension of fan belt
Hands off from coolin
g
fan
Cleanin
g
b
y
air-blo
w
L
i
g
htin
g
apparatus

1.Safety
1-9
 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.
 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.
Openin
g
coolant water drain valve cap
H990432
Refillin
g
or drainin
g
of en
g
ine oi
l
H990432
Fear of fire
H990433
Disposal of waste liquid, etc.

1.Safety
1-10
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
14
11 12 13

1.Safety
1-11
● The pasting position of safe warning label is as follows.
A070443E
6 14 12 1
8
7
5
10 4 3
9
13 2 6 11

2.Part Names
2-1
2.1 Internal Components and Part Names
No. Description Function
1 Oil cooler For cooling compressor oil circulating in the system.
2 Fuel filter
For filtering dust and foreign matter mixed or to be mixed in the fuel oil.
3 Pre filter For filtering dust and foreign things mixed in fuel oil and also for
separating water.
4 Pressure regulator For adjusting intake air volume (into compressor air-end)
5 Compressor oil filter For filtering compressor oil circulating in the system.
6 Safety valve
For releasing compressed air to the atmosphere when the pressure rises
higher than the rated pressure.
7 Pressure control valve For keeping the receiver tank pressure higher than 0.4MPa in the tank.
8 Auto relief valve
For releasing the compressed air to the atmosphere. When the
compressor stops.
9 Regulator for low
pressure For pressure regulator during low pressure operation.
10
Regulator for high
pressure Regulator for
high pressure
For pressure regulator during high pressure operation.
11 Solenoid valve for
starting unloader For control device for closing unloader valve at start-up.
12 Solenoid valve for
selection rated pressure
For control device for selection of low and high pressure
operation.
13 Separator receiver tank For separating compressor oil from compressed air sent into the tank.
14 Compressor oil drain valve For draining compressor oil from separator receiver tank.
15 Engine oil drain valve For draining engine oil for replacement of it and for maintenance.
16 Compressor oil filler port For supplying and replenishing compressor oil.
17 Compressor oil level gauge Scale for measuring compressor oil level.
18 Fuel tank For storing diesel fuel oil.
19 Fuel tank drain valve
For draining condensate and water accumulated at the bottom of the fuel
tank.
20 Engine oil filter For filtering engine oil.
21 Radiator drain valve For draining condensate accumulated at the bottom of radiator.
22 Oil cooler drain valve For draining condensate caused by reverse turning state.
22 21 20 19 18 1716 15 14
A
070438
1 2 3 4 5 6 7 8 9 10
11
12
13

2.Part Names
2-2
A070438-1
23 24 25 26 27 28 29 30 31 32 33
36
8
No. Description Function
23 Oil separator differential
pressure gauge For indicating abnormality of oil separator clogging.
24 Unloader regulator For regulating revolution speed of compressor air-end
25 Air filter (For engine) For filtering the dust floating in the intake air.
26 Air filter (For
compressor) For filtering the dust floating in the intake air.
27 Coolant drain plug (For
engine) For draining condensate from engine.
28 Engine For driving the compressor.
29 Engine oil filler port For supplying and replenishing engine oil to engine.
30 Engine oil level gauge For checking engine oil level.
31 Reserve tank For feeding cooling water.
32 Radiator For cooling the coolant for engine because it is water-cooled.
33 Exhaust muffler Equipment which muffles an engine exhaust sound.
34 Battery For electrically starting engine.
35 Air-end For compressing intake air.
36 Vacuum relief valve For preventing vacuum noise from occurring in compressor air-end
during unloaded operation.
35 34 19 18

3. Installation
3-1
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 suspended, 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 and rear hooks.
 Be sure to put one set of chocks to fix its wheels firmly on the truck bed.
 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 “2”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 Use auxiliary ropes“3”to prevent the unit from swinging
and/or twisting, giving signs and signals each other.
④ 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.
⑤ Never lift the unit while it is running, or this could cause a
serious accident.
3.1.2 Mounting the unit on the truck bed

Be sure to fasten the unit with ropes“1”as shown in the
figure right, and securely fix it on the truck bed.
 Be sure to put one set of chocks“2”to the wheels. Pull the
parking brake lever it firmly after the unit is loaded on the
truck bed.
A030117
A010190
3
1
3
2
1 2
2 1
Transportation

3. Installation
3-2
H000480
H000466
M970092
3.2 Handling the Drawbar
 When the drawbar“1”is raised up for transportation, be sure
to secure it by engaging the drawbar hook“3”with the holder
“2”without fail.
 If the drawbar hook comes off the drawbar falls down,
causing serious injury.
 Therefore, make sure that the stopper“4”is locked at the
lock position shown in the figure.
 When the drawbar stays at the release position shown in the
figure, the hook“3”could come off the holder“2”, causing
the drawbar“1”to fall down.
 Handle the hook“3”holder“2”and stopper“4”so carefully
to prevent your fingers from being caught and injured.
3.2.1 How to secure the drawbar
① Place the drawbar“1”to the front of the machine so that
the wheel tires can be aligned.
② With the stopper“4”being at the lock position, raise the
drawbar“1”up to the position at which the hook“3”can
be engaged with the holder“2”(See Fig.1)
If the stopper stays at the holder and so the drawbar
cannot be firmly fixed. (See Fig.2)
③ Make sure that drawbar hook is securely engaged with
the holder.
④ Make sure that the stopper stays at the lock position.
(See Fig.1)
1 2 4
Release position
H000466 M970098
3
Release position
Fig.1 Fig.2
Lock position
1 2 4
1
3
Precautions on handling drawbar
Lock position

3. Installation
3-3
M970095
3.2.2 How to release the drawbar
①Push the fixed drawbar“1”against the machine in the
direction of arrow mark.
②Turn the stopper“4”a little to make larger the clearance
between stopper“4”and holder“2”than the diameter of the
hook“3”.
③Release the hook from the holder“2”through the clearance.
④Lower the drawbar.
⑤Return the stopper“4”to the lock position.
3.3 Towing the Unit
 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 20 km/h.
 Be sure to use a vehicle with enough capacity to tow the unit in operating weight.
 Standard pressure for a tire is at 0.45 MPa.
 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.
1 3
4
2
Caution for towing unit
H000467

3. Installation
3-4
A010189
3.4 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 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.
 This parking brake is a device exclusively used to hold the
unit when it is parked. It is not for use as a stopping brake
during its transportation (while being drawn by a vehicle).
 The machine should be operated in following conditions:
 Ambient temperature ･･･････ -15°C to +40°C
 Humidity ･････････････････ Less than 90%
 Altitude ･･････････････････ Lower than 1,500 m 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
1 1