SUNWARD SWDE120B-3 Manual

SWDE120B-3 DOWN-THE-HOLE DRILLING RIG
Operation & Maintenance
Manual
SUNWARD INTELLIGENT EQUIPMENT CO., LTD.
March, 2022

FOREWORD
The manual shall be read carefully and understood correctly to help you operate and
maintain your machine safely and properly, otherwise, personal injury and machine damage
may occur.
The safety attentions and labels are mentioned in the manual and fixed on the machine
providing the instructions of potential risks and the way to avoid that.
It’s impossible for SUNWARD to predict all the potential risks. Thus, the safety rules
are mentioned in the manual and on the machine only referring to the basic safety rules
instead of all possible safety precautions. Necessary measures should be taken by you to
ensure the safety if there’s no specified, recommended or allowed methods or actions in the
manual.
The forbidden usages or operations in the manual shall be observed strictly under any
circumstances.
The machine is designed according to the metric system, all the data presented are
metric, even if the inch size is lined out, which is still transformed by the metric size. Besides,
only metric parts and tools can be used.
The manual should be regarded as the permanent part of your machine and kept in the
cab for consultation at any time. Please contact SUNWARD or authorized dealers to
purchase a new one if it’s damaged or lost. Meanwhile, it should be attached when the
machine is transferred or sold.
Only qualified, experienced operators or who received an official license after a
standard training can operate, check or maintain this machine.
The instructions, data and charts covered by this manual are the latest product
information as of its date of issue. The manufacturer SUNWARD reserves the right to make
any modification or amendment of any nature from time to time and without prior notice,
deemed useful or necessary, to any machine component, without any obligation to amend the
content of this manual accordingly. Pictures and data contained in this manual are not
binding. Consequently, no claim raised in this respect will be considered.
Please contact SUNWARD or authorized dealers for any questions about the latest
material or the material referred in the manual.
SUNWARD INTELLIGENT EQUIPMENT CO., LTD.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
Table of Content
1. Safety Rules...........................................................................................................................1
1.1 Safety Mark................................................................................................................. 1
1.2 Safety Label................................................................................................................. 1
1.3 General Safety Instruction........................................................................................... 1
1.4 Preparation for Emergency.......................................................................................... 2
1.5 Wear Safety Protective Gear....................................................................................... 2
1.6 Check Machine Before Start-up.................................................................................. 3
1.7 Adjust Operator Seat....................................................................................................3
1.8 Enter or Leave Machine Correctly.............................................................................. 3
1.9 Start Engine Correctly................................................................................................. 3
1.10 No Passenger Allowed In The Cab............................................................................4
1.11 Keep Machine Away From Power Line.................................................................... 4
1.12 Move Machine Safely................................................................................................4
1.13 Prevent Accidents While Backing Up or Swinging.................................................. 4
1.14 Safe Operation........................................................................................................... 5
1.15 Avoiding Runaway Accidents................................................................................... 5
1.16 Parking Machine Safely.............................................................................................6
1.17 Safe Maintenance.......................................................................................................6
1.18 Supporting Machine Correctly.................................................................................. 7
1.19 Trash Cleaning...........................................................................................................8
1.20 Preventing Battery Explosion.................................................................................... 8
1.21 Storing Spare Parts Safely......................................................................................... 8
1.22 Preventing Splashing Attacker.................................................................................. 9
1.23 Preventing Parts From Flying Off............................................................................. 9
1.24 Keep Away From Transmission Parts....................................................................... 9
1.25 Prevent Inhaling Asbestos Dust.................................................................................9
1.26 Beware Of Inhaling Smoke or Exhaust Gas............................................................ 10
1.27 Beware of scalding.................................................................................................. 10
1.28 Be Careful Of Pressured Liquids.............................................................................10
1.29 Avoid Heating near A Pressured Oil Pipe............................................................... 11
1.30 Avoid Heating Flammable Liquid Pipe...................................................................11
1.31 Remove Paint before Welding or Heating...............................................................11
1.32 Liquid Disposal........................................................................................................12
1.33 Chemical Disposal................................................................................................... 12
1.34 Fire Prevention.........................................................................................................13
2. CAB..................................................................................................................................... 14
2.1 CAB........................................................................................................................... 14
2.2 CAB CONTROL HANDLE & DASHBOARD LAYOUT...................................... 15
2.3 Electric Control Section of Cab.................................................................................16
2.4 Main Operating Interface...........................................................................................17
2.4.1 Parameter Interface.........................................................................................19
2.4.2 Settings Interface............................................................................................ 20
2.4.3 Inclination Interface........................................................................................21
2.4.4 Drilling Depth Detection Interface................................................................. 22
2.4.5 Fault Code Interface....................................................................................... 23
2.4.6 IO Port Interface............................................................................................. 24

OPERATION & MAINTENANCE MANUAL SWDE120B-3
2.5 STARTING SWITCH............................................................................................... 25
2.6 THROTTLE CONTROL KNOB.............................................................................. 25
2.7 EMERGENCY SWITCH.......................................................................................... 26
2.8 CATHODE SWITCH................................................................................................26
2.9 BUS PANEL..............................................................................................................27
2.10 ROCKER SWITCH.................................................................................................30
2.11 RADIO.....................................................................................................................31
2.12 SEAT ADJUSTMENT............................................................................................ 33
2.13 PILOT LEVER AND SWITCHES CONTROL......................................................34
2.14 THROTTLE CONTROL KNOB............................................................................ 40
3. RUNNING-IN..................................................................................................................... 41
3.1 WATCHING ENGINE RUNNING CAREFULLY..................................................41
3.2 EVERY 8 HOURS OR EVERY DAY......................................................................41
3.3 AFTER FIRST 50 RUNNING HOURS....................................................................41
3.4 AFTER FIRST 100 RUNNING HOURS..................................................................41
4. ENGINE OPERATION.......................................................................................................42
4.1 DAILY CHECK (BEFORE OPERATING)..............................................................42
4.1.1 Electrical System............................................................................................ 42
4.1.2 Drilling Boom, Kelly Bar, Metal Sheet Parts, Crawler Plates........................42
4.1.3 Fasteners......................................................................................................... 42
4.1.4 Fuel System.................................................................................................... 42
4.1.5 Hydraulic System............................................................................................42
4.1.6 Electrical Device.............................................................................................42
4.1.7 Air Filter......................................................................................................... 42
4.1.8 Oil Level of Hydraulic Oil Tank.................................................................... 43
4.1.9 Lubrication......................................................................................................43
4.1.10 Protection Device..........................................................................................43
4.1.11 Safety............................................................................................................ 43
4.2 ENGINE OPERATION.............................................................................................44
4.2.1 Check Diesel Engine.......................................................................................44
4.2.2 Before Starting Engine................................................................................... 44
4.2.3 Starting Engine............................................................................................... 44
4.2.4 Starting In Cold Weather................................................................................45
4.2.5 Adjusting Rev of Diesel Engine..................................................................... 45
4.2.6 Engine Shut-down.......................................................................................... 45
4.3 USING ACCESSORIAL BATTERY....................................................................... 47
5. TRAVEL..............................................................................................................................49
5.1 TRAVELLING OPERATION.................................................................................. 49
5.2 TRAVELLING POSTURES..................................................................................... 50
5.2.1 Correct and Wrong Travelling Postures on Level Ground.............................50
5.2.2 Correct and Wrong Travelling Postures on Upslope......................................51
5.2.3 Correct and Wrong Travelling Postures on Downslope................................. 52
5.2.4 Correct and Wrong Travelling Postures while Crossing Slopes.................... 53
5.3 TRAVELING SPEED............................................................................................... 54
5.4 TRAVELING BRAKE..............................................................................................54
6. DRILLING OPERATION...................................................................................................55
6.1 DRILLING OPERATION.........................................................................................55

OPERATION & MAINTENANCE MANUAL SWDE120B-3
6.2 ATTENTION DURING DRILLING........................................................................ 55
6.3 ASSEMBLY OF AUXILIARY KELLY BAR......................................................... 56
6.4 STOP DRILLING......................................................................................................57
6.5 DISASSEMBLY OF KELLY BAR.......................................................................... 57
6.6 NOTES OF DRILL FRAME RETURNING.............................................................57
6.7 MACHINE MAINTENANCE.................................................................................. 58
6.8 Others.........................................................................................................................58
7. MAINTENANCE................................................................................................................59
7.1 MAINTENANCE PROCEDURES........................................................................... 60
7.1.1Correct Maintenance and Inspection Procedures............................................ 60
7.1.2 Daily Inspection before Startup...................................................................... 60
7.1.3 Often Check Working Timer.......................................................................... 61
7.1.4 Preparation before Maintenance..................................................................... 61
7.1.5 Correct Use of Fuel and Lubrication Oil........................................................ 61
7.1.6 Checking Discharged Oil and Used Filter Element........................................61
7.1.7 Inspection after Maintenance..........................................................................62
7.1.8 Maintenance for Electrical System.................................................................62
7.1.9 Maintenance for Hydraulic System................................................................ 63
7.2 OIL, COOLANT AND FILTER ELEMENT............................................................64
7.2.1 Lubricating Oil and Hydraulic Oil..................................................................64
7.2.2 Fuel Oil........................................................................................................... 64
7.2.3 Coolant in the Cooling System.......................................................................65
7.2.4 Lubricating Grease..........................................................................................65
7.2.5 Oil Storage...................................................................................................... 66
7.2.6 Filter Element................................................................................................. 66
7.2.7 Oil and Coolant for Different Environmental Temperature........................... 67
7.3 TORQUE TABLE OF SCREW THREAD............................................................... 68
7.4 MAINTENANCE GUIDE.........................................................................................69
7.4.1 Oil................................................................................................................... 69
7.4.2 Engine Oil.......................................................................................................69
7.4.3 Gear Oil.......................................................................................................... 70
7.4.4 Hydraulic System............................................................................................70
7.4.5 Fuel System.................................................................................................... 71
7.4.6 Air Filter......................................................................................................... 72
7.4.7 Cooling System...............................................................................................72
7.4.8 Air Conditioner Maintenance......................................................................... 73
7.4.9 Dust Collection System.................................................................................. 74
7.4.10 Regular Change of Hydraulic Hoses............................................................ 74
7.5 ROTARY HEAD.......................................................................................................76
7.6 LIST OF MAINTENANCE PARTS, QUICK-WEAR PARTS................................79
7.7 CRAWLER................................................................................................................80
7.8 ELECTRICAL SYSTEM.......................................................................................... 82
7.8.1 Battery.............................................................................................................82
7.8.2 Battery Replacement.......................................................................................84
7.9 Maintenance under Special Conditions..................................................................... 84
7.10 Protecting Measures for Long Term Storage...........................................................86
8. PROBLEM SHOOTING.....................................................................................................87

OPERATION & MAINTENANCE MANUAL SWDE120B-3
9. MACHINE TECHNICAL SPECIFICATION.................................................................... 90
9.1.1 SWDE120B-3 Technical Parameters............................................................. 90
9.1.2 Dimension.......................................................................................................91
10. STRUCTURE AND WORKING THEORY.....................................................................93
10.1 DRILLING FRAME................................................................................................93
10.2 SLIDE FRAME....................................................................................................... 93
10.3 ROTATING MECHANISM................................................................................... 94
10.4 FEED MECHANISM..............................................................................................94
10.5 ROD DISCHARGER.............................................................................................. 94
10.6 DRY-TYPE DUST COLLECTION........................................................................ 94
10.7 WET-TYPE DUST COLLECTION........................................................................95
10.8 TRAVEL MECHANISM........................................................................................ 96
10.9 MACHINE FRAME................................................................................................97
10.10 IMPACTOR...........................................................................................................97
10.11 DIESEL ENGINE & PUMP GROUP................................................................... 97
10.12 OIL TANK.............................................................................................................97
10.13 ROD CAROUSEL.................................................................................................97
10.14 OPERATING SYSTEM........................................................................................97
10.15 AIR COMPRESSOR SYSTEM............................................................................ 98
10.16 HYDRAULIC CONTROL SYSTEM THEORY................................................100
11. APPENDIX......................................................................................................................101
11.1 HYDRAULIC SCHEMATIC................................................................................101
11.2 ELECTRICAL SCHEMATIC...............................................................................102
11.3 SYSTEM SCHEMATIC OF AIR COMPRESSOR..............................................103
12 MANUFACTURER INFORMATION............................................................................ 104

OPERATION & MAINTENANCE MANUAL SWDE120B-3
1
1. Safety Rules
1.1 Safety Mark
The figure to the right is a safety
reminder. When you see this mark on the
machine or in the manual, it indicates
that you may be in danger of injury.
1.2 Safety Label
There are various labels at various places on the
machine indicating various risks, such as Danger,
Warning, Attention, etc (right figure), they have
the following meanings:
Danger---indicates an imminently hazardous situationwhich, if not avoided, will
result in death or serious injury.
Warning---indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Attention---indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
Danger, Warning safety labels are placed at given locations of the machine in the
possible dangerous area. General attentions are listed on the “Attention” safety
label. In this manual, “Attention” is also used to remind of safety instruction.
1.3 General Safety Instruction
Read the manual carefully and
follow the safety instructions on
the labels and manual before
operating the machine.
Always keep the safety labels
clean. Change any lost or damaged
labels with new ones. If the labels
or manual are lost, you can contact
the dealer and indicate the model
of machine to purchase.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
2
Only trained and qualified
operators are permitted to operate
this machine. Keep the machine in
good condition as per this manual
Do not modify the machine
without prior authorization,
otherwise it will affect the
performance and service life of the
machine, or may cause injuries to
human body.
ATTENTION: The safety instructions
in this manual include only the general
safety rules of the machine. Not all
possible danger is covered. Should any
problems occur, please report to your
superior before operating and
maintaining the machine.
1.4 Preparation for Emergency
All personnel related to operating the
machine should pay attention to prevent
accidents from happening. Always keep
a first-aid kit and fire extinguisher
nearby. Have phone numbers of a doctor,
ambulance, hospital and fire department
with you in case of emergency.
1.5 Wear Safety Protective Gear
Before operation, always wear protective
gear
as the work requires, this includes:
Tight work clothes
Hardhat

OPERATION & MAINTENANCE MANUAL SWDE120B-3
3
Safety gloves
Safety glasses, goggles, or shield
Dust mask or respirator
Earplug or earcap
1.6 Check Machine Before Start-up
Before each day or shift, check the
machine according to the “Check
machine before start-up” section.
1.7 Adjust Operator Seat
You may adjust seat to suit yourself, lean
your back on the back of seat and let
your feet reach the pedals at ease.
1.8 Enter or Leave Machine Correctly
Always face the machine when you use
the steps and handholds to enter or leave
machine
Never use any control lever as a
handhold
Never enter or leave machine when the
machine is traveling, swinging, or
drilling.
1.9 Start Engine Correctly
The operator must sit on cab seat to start
engine
Standing on the crawler to start engine is
not permitted.
Short circuit start of the engine
(including terminal start) is forbidden.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
4
1.10 No Passenger Allowed In The Cab
When the machine is in operation or
traveling, no passenger is allowed to stay
on or in the machine except the operator.
1.11 Keep Machine Away From Power Line
Any part or load of the machine touching power line will cause human death or GBH
Prohibit machine or its load from operating in the proximity of any power line.
Keep the machine more than 5 meters away from any power line.
1.12 Move Machine Safely
Before the machine travels and swings, know the position of other people.
Before the machine travels or swings, warn other people by tapping the horn.
Hand signals should be used when operation or swinging is made in confined area,
which are agreed upon before machine start-up.
Know that the pedal/control levers are corresponding to the traveling direction before
operating the machine.
★★★★★ When discharging drill mast, make sure that no person front of machine
and operator is required to wear safety helmet. When working on drill frame, safety
belt is required.
★★★★★ When moving machine, extrude pendular cylinder and close the service
with main Kelly bar to avoid their falling if machine has both main and service Kelly
bar.
Raise drill mast and tool before moving machine. Stop the engine and take any necessary
measures should the Kelly bar fall.
1.13 Prevent Accidents While Backing Up or Swinging
In order to prevent accidents while
backing up or swinging, the operator
must:
Look around and confirm nobody is
there before backing up or swinging.
Ensure that other people are out of the

OPERATION & MAINTENANCE MANUAL SWDE120B-3
5
working range. Warn other people by
tapping the horn or using other signals
before the machine moves.
Keep a signal man within his (her)
vision range if the operator’s vision is
obscured.
If a signal man is required during operating, he should use gesture
sign. The sign should be understood between the operator and
signal man before the machine moves.
Understand the meaning of flags, marks and signals and definite
who gives the signals before the machine moves or swings.
Keep windows, mirrors, and lights clean.
Use light when visibility is obscured by dust, rain, fog, etc
Read carefully and understand the contents of this manual.
1.14 Safe Operation
All non-work related people should be keep away from the machine’s working range.
Make sure the site is hard enough to support the machine, or use 2 steel plates to support
it.
When the machine works close to a hole, the tension wheel end should be towards the
hole, the crawlers should be placed in a position thus the machine can move away easily
in case of hole collapse.
1.15 Avoiding Runaway Accidents
GBH or death may occur when attempting to climb onto a moving machine or trying to stop
an out-of-control machine.
In order to prevent that from happening, pay attention to the followings:
Stop the machine on a flat ground and try to avoid stopping on slope. Shut down the
engine according to the following procedures:

OPERATION & MAINTENANCE MANUAL SWDE120B-3
6
Run engine at low rev for 3 minutes to cool down the machine.
Stop engine, take out key from key switch.
Switch off hydraulic control switch.
Use chocks to block crawlers, and boom down the drilling mast, and pin the orientation
prick on the ground if the machine has to stay on slope. If stay over 10 minute, use
stabilizer cylinder to support the machine stably.
Secure the machine to prevent accidental movement.
Park the machine away from other machines at a proper distance.
1.16 Parking Machine Safely
Stop machine according to the following steps:
Place machine on flat ground.
Run engine at low rev for 3 minutes to cool machine down.
Slide the fuel handle to stop position; turn the ignition key to “OFF” position.
Switch off pilot control.
Close window, sky window, and cabin.
Safety of your machine and personnel should be ensured under any condition.
1.17 Safe Maintenance
Maintenance Steps:
Understand the maintenance rules before working.
Keep the working area clean and dry.
Don’t lubricate or maintain a moving machine.
Keep body and clothing from touching any moving parts.
Prepare for maintenances:
Place the machine on flat
ground.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
7
Lower the supporting leg on the
ground or lower the drilling
mast on the bracket.
Run engine at low rev for 5
minutes.
Pull stop handle forward, stop
engine, and take out key from
the ignition.
Hang the “Machine out of
Duty” plate at control lever.
Switch off pilot control.
Safety in maintenance
One person should remain inside the cabin if the maintenance must take place while
the engine is running.
Check some parts at regular intervals. Repair or replace, if necessary. (Refer to the chapter
“maintenance” of this manual)
Make sure all parts are in good condition and fit correctly. Replace worn or damaged
parts. Clean any excess lubricant.
When adjusting electric system or welding on machine, disconnect negative pole ( 一) of
battery.
1.18 Supporting Machine Correctly
Prohibit repairing or maintaining machine
before the machine is well supported.
Before maintenance, lower the drilling
tools to the ground or lower the drilling
mast on the bracket.
Don’t support the machine on any slag,
hollow brick, or fragile objects.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
8
1.19 Trash Cleaning
Keep the engine, radiator, battery,
hydraulic line, fuel tank, and cabin clean.
After stopping the engine, the engine
temperature may rise immediately. Open
engine compartment doors to cool engine
as soon as possible and clean engine
apartment.
Clean machine at regular intervals,
eliminate excess lubricant and other trash.
Do not spray water or vapor into cabin.
1.20 Preventing Battery Explosion
Prohibit fire or flame close to the battery
top, battery gas may cause explosion.
Check the electric charge with a voltage
meter or gravimeter. Do not place metal
bestriding connection rod to check
electricity deposit.
Never charge a frozen battery, otherwise it
will explode. The battery should be
warmed up to 16°C (60°F).
1.21 Storing Spare Parts Safely
Spare parts in storage, such as Kelly bar,
percussive drilling etc, may fall down and
result in death or GBH.
All measures should be taken to store the
spare parts safely and avoid their falling
down. Prevent none of work persons
especially children from entering the
storage area.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
9
1.22 Preventing Splashing Attacker
Prevent the operator from being hurt by
splashing content such as metal, stone.
Wear goggle or security glasses
Make sure no other person around machine
before knocking and prevent others from
entering working area to avoid hurting.
1.23 Preventing Parts From Flying Off
The grease in the crawler tension unit is
under high pressure. To avoid injury, do
not discharge grease cup or valve. Also
keep your body and face away from any
valves in case any unexpected parts fly off.
1.24 Keep Away From Transmission Parts
Touching transmission parts may cause
GBH.
When you work around the transmission
parts, pay attention not to let your hand,
foot, hair or clothes touch the machine.
1.25 Prevent Inhaling Asbestos Dust
Prevent inhaling possible asbestos dust.
The asbestos fiber may cause lung cancer.
Some seals contain asbestos fiber. In these
components, normally, the asbestos is in
the resin or kept closed. If the asbestos
containing parts don’t cause dust, there
isn’t any danger in normal disposal.
In order to prevent dust, don’t clean with
compressed air, and avoid brushing and
grinding asbestos-contained materials. In
maintenance work, wear regulated
respirator, and use a special dust collector

OPERATION & MAINTENANCE MANUAL SWDE120B-3
10
to clean asbestos. If dust collector is not
available, use a little oil or water to damp
the asbestos-contained material. Comply
with working area rules and asbestos
disposal rules. Keep other people from
entering in working area.
1.26 Beware Of Inhaling Smoke or Exhaust Gas
Inhaling exhaust gas may cause disease,
or even death.
If the machine is operated inside a
building, open windows and doors to
ensure sufficient ventilation, or use long
exhaust pipe to discharge smoke.
1.27 Beware of scalding
During operation, engine oil, gear oil,
hydraulic oil will become hot. Also
engine, hose, exhaust pipes, and other
parts will also become hot, beware of
scalding.
Carry out inspection and maintenance
after oil and parts have cooled to prevent
scalding. The hydraulic oil tank and
pipeline are high pressured. Before
maintenance or replacement, the
pressure should be released to avoid hot
oil erupting.
1.28 Be Careful Of Pressured Liquids
Liquids in high pressure can penetrate
through skin, causing GBH.
Release pressure before disconnecting any
pipes to avoid this.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
11
Operate control lever many times to release
pressure.
Before pressurizing, tighten all the
connections.
Inspect leakage with cardboard. Pay
attention to protect your hand and body.
If accident occurs, see a doctor at once.
Any liquid penetrating the skin must be
cleaned within a few hours, otherwise it
will cause tissue decay.
1.29 Avoid Heating near A Pressured Oil Pipe
To prevent severe burns, do not weld or
flame cut near pressured oil pipe or other
flammable materials.
A temporary fireproof protection cover
should be provided when welding, flame
cutting or gas welding take place.
1.30 Avoid Heating Flammable Liquid Pipe
Pipes with flammable liquid are not
permitted to be welded. Pipes or hoses
must be cleaned completely with
incombustible solvent should any
welding be required on those pipes.
1.31 Remove Paint before Welding or Heating
Prevent potential poisonous gas and dust.
When paint is heated up by welding or
other methods, it will produce poisonous
gas.
Remove paint by the following methods
before welding or heating:

OPERATION & MAINTENANCE MANUAL SWDE120B-3
12
Wear a regulated mask to prevent
inhaling dust when removing paint
with abrasive paper or sand wheel.
Remove paint with solvent or paint
remover. Clean paint remover with
soap and water and wait for about 15
minutes for solvent to evaporate before
welding.
Paint removal work should be
conducted outdoors or in a well
-ventilated area.
1.32 Liquid Disposal
All fuels, most lubricants, and some coolants are
flammable. These flammable liquids should be
stored away from fire. Do not burn or punch any
liquid containers.
Dispose of fuel carefully; stop engine
before adding fuel; prohibit smoking while
adding fuel. Add fuel outdoors.
Do not put oil-containing rags on the
machine to ensure the machine stays clean.
1.33 Chemical Disposal
Touching harmful chemicals directly will
cause serious injury to the human body.
The chemicals used in this piling rig, such
as lubricant, coolant, paint, and adhesive
may be harmful.
Before using harmful chemicals, check and
understand its danger; know how to use
them safely.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
13
1.34 Fire Prevention
Following these steps to prevent fire:
Prevent fire caused by leakages of fuel,
hydraulic oil and lubricant:
Inspect clamps and ensure they are intact, check hoses and pipes to see they are in the
right position; check hydraulic oil cooler, connections; check leakage using a piece of
cardboard; never check leakage by hand. prevent pressure oil pierce skin and result in
injured.
Tighten, repair, or replace any clamps, pipes, hose, oil cooler, and flange bolts of oil
cooler.
Do not twist or punch any high-pressured pipe.
Do not use any twisted or damaged pipe or hose.
Inspect short circuits. Short circuiting of the electric system can cause fire.
Check cables and wires before every shift or after 8 hours operation.
Check connectors before every shift or after 8 hours operation.
Tighten, repair, or replace any loosened or damaged cables, wires and connectors before
operation. Do not operate the machine if the cables and wires are not in good condition.
Repair switch.
Check key switch and engine emergency stop switch before everyday operation. Repair
immediately if they are not functioning.
Fire might be even worse or GBH might happen if engine cannot be stopped in case
Clean out flammable materials.
Spilled fuel, excessive coal dust, and other flammable materials may cause fire. Keep the
machine clean every day to prevent fire.

OPERATION & MAINTENANCE MANUAL SWDE120B-3
14
2. CAB
2.1 CAB