SUNWARD SWE90UF-2PB Manual

I
Sunward Intelligent Equipment Co., Ltd.
September, 2022
SWE90UF-2PB
Crawler-type Hydraulic Excavator
Operation & Maintenance Manual
© All rights reserved by Sunward Intelligent Equipment Co.,
Ltd.

SWE90UF-2PB Operation & Maintenance Manual
Note for Service Request
Dear Customers:
Thank you sincerely for purchasing our products. We will provide you timely service of good quality, so as
to bring you more fortune with our equipment.
It’s essential to provide us enough clear failure information, thus, we can analyze that and offer you
effective service on time. If any support is requested from SUNWARD or our authorized agents, failure
details should be provided as much as possible, mainly including following items:
①A clear and full photo of the equipment nameplate, which locates on the right outside of the cab, as
below figure:
②A photo of equipment working hours.
③A photo of the entire machine, in which the whole equipment and its working condition should be clear
and complete.
④A photo of possible failure component, which can help us to analyze the accurate location of
malfunction.⑤A close-up photo of failure component, in which show the malfunction details or damage
clearly.
If you estimate that the failure may be caused by valuable components, such as, engine, hydraulic pump,
main control valve, motor, hydraulic cylinder, controller, display screen, radiator and crawler, photos of
these component nameplate or steel seal are also needed, which locates on the top or side. Please
distinguish that carefully.
Please send us service request by email or other method, thanks for your support.

SWE90UF-2PB Operation & Maintenance Manual
EC Declaration of Conformity
The undersigned, representing the following:
Manufacturer and
the authorized representative established within
the
European Economic Area:
Company name:
SUNWARD INTELLIGENT EQUIPMENT CO., LTD.
Address:
Sunward Intelligent Industrial Park, Xinsha,
Changsha , Hunan, China
SUNWARD EUROPE HEAVY INDUSTRY NV
Nijverheidspark 3, 3580 Beringen, Belgium
Business name: SUNWARD INTELLIGENT EQUIPMENT CO., LTD.
Name and address of person/Company authorized to compile the technical file established in the EU
Community:
SUNWARD EUROPE HEAVY INDUSTRY NV
Nijverheidspark 3, 3580 Beringen, Belgium
herewith declare that the following safety component/s:
Description of machine
Generic denomination: Hydraulic Excavator
Function: Widely used in projects like earth & stone construction, municipal construction, road
maintenance , layout of cables and pipes, garden cultivation, trenches clearance, and etc.
Model/s: SWE90UF
Series:
fulfil the relevant provisions of European Directive 2006/42/EC. The harmonized standards used in order to
obtain compliance to 2006/42/EC (MD) are the following:
EN 474-1: 2006+A4:2013/AC:2014 – Earth-moving machinery-Safety - Part 1. General requirements;
EN 474-5:2006+A3:2013 – Earth-moving machinery - Safety - Part 5: Requirements for hydraulic
excavators;
EN ISO 4413:2010 –Hydraulic fluid power - General rules and safety requirements for systems and their
components;
EN ISO 12100:2010 – Safety of machinery - General principles for design - Risk assessment and risk
reduction

SWE90UF-2PB Operation & Maintenance Manual
Foreword
It is particularly important that the operator should read these instructions carefully in order to operate and
maintain the excavator safely and correctly. Otherwise accidents or damage may occur.
The manual supplies safety rules and labels which have been fixed on the machine so as to provide the
instructions of potential danger and the ways to avoid it. Please follow that strictly during operating and
maintenance. The forbidden usages or operations that mentioned in this manual cannot be engaged in any
circumstances.
SUNWARD cannot predict all kinds of potential danger may occur in the process of operation and
maintenance. Therefore, the related instructions in this manual and on the machine only concern the basic
safety rules. It is the operator’s duty to take necessary measures to protect safety if there is no
corresponding method recommended in this manual.
Sunward guarantees to keep machine in good repair in term of service. The service details are showed in
Maintenance Card supplied by distributor. In order to receive the warranty service from Sunward, make sure
genuine Sunward parts are used and all instructions given in this manual is complied with strictly for
operation and maintenance. If any personal injury, death and property loss is caused by failure to obey
above instructions, Sunward will not take any responsibility for that, and has rights to refuse to provide and
to terminate warranty service in advance.
The excavator is designed according to the metric system, all the data presented are metric and only metric
parts and tools can be used.
The manual should be regarded as the permanent part of excavator and kept at the easy reading place for
consultation at any time. If it is damaged or lost, please contact SUNWARD or agents for ordering. The
manual should be attached when the excavator is transferred or sold.
Only trained, qualified and experienced operators can operate, check and maintain the machine.
The equipment covered by this manual meets the applicable technical specifications effective as of its date
of issue. The manufacturer SUNWARD reserves the right to make any modifications from time to time
without prior notices to any excavator components.
Sunward Intelligent Equipment Co., Ltd.

SWE90UF-2PB Operation & Maintenance Manual
TABLE OF CONTENTS
1 SAFETY RULES................................................................................................................................................... 1
1.1 SAFETY LABELS............................................................................................................................................ 3
1.1.1 Location of Safety Labels
.....................................................................................................................
3
1.1.2 Safety Labels Instructions
....................................................................................................................
3
1.2 GENERAL SAFETY RULES.......................................................................................................................... 14
1.2.1 Observing Safety Rules
......................................................................................................................
14
1.2.2 Meaning of Safety Label
....................................................................................................................
15
1.2.3 Emergency Protection
.......................................................................................................................
15
1.2.4 Wearing Protective Devices
..............................................................................................................
15
1.2.5 Safety Equipment
...............................................................................................................................
16
1.2.6 Keeping Machine Clean
.....................................................................................................................
16
1.2.7 Checking before Start-up
.................................................................................................................
16
1.2.8 Precautions of Entering Cab
.............................................................................................................
16
1.2.9 Correct Entering/Leaving Machine
...................................................................................................
17
1.2.10 Adjustment of Operator’s Seat
....................................................................................................
17
1.2.11 Fastening Seatbelt
............................................................................................................................
18
1.2.12 Ensuring Perfect Visibility
................................................................................................................
18
1.2.13 Leaving Operation Seat Safely
........................................................................................................
18
1.2.14 Emergency Exit
.................................................................................................................................
18
1.2.15 No Passengers Allowed
...................................................................................................................
18
1.2.16 Worksite Safety
.................................................................................................................................
19
1.2.17 Operation on Loosened Area
.........................................................................................................
19
1.2.18 Signals and Gestures from Flagman
..............................................................................................
19
1.2.19 Distance to High Voltage Cables
....................................................................................................
20
1.2.20 Preventing Scald
...............................................................................................................................
20
1.2.21 Keeping Away From Transmission Parts
........................................................................................
20
1.2.22 Preventing Fire and Explosion
........................................................................................................
21
1.2.23 Measures for Fire Fighting
..............................................................................................................
21
1.2.24 Preventing Splashing or Falling Objects
........................................................................................
21
1.2.25 Prevention of Flying-Out Parts
.......................................................................................................
22
1.2.26 Preventing Asbestos Dust Inhalation
.............................................................................................
22
1.2.27 Preventing Inhalation of Smoke or Exhaust Gas
...........................................................................
22
1.2.28 Be Cautious of High Pressure Liquids
............................................................................................
23
1.2.29 Safe Disposal of Liquids
...................................................................................................................
23
1.2.30 Safe Disposal of Chemicals
.............................................................................................................
24
1.2.31Waste Material Disposal
...................................................................................................................
24
1.2.32 Prohibition of Unauthorized Modification on Machine
...............................................................
24
1.2.33 Preventing Objects Falling From High Altitude
............................................................................
24
1.3 SAFE OPERATION INSTRUCTIONS..........................................................................................................25
1.3.1 Inspection before Starting Engine
....................................................................................................
25
1.3.2 Correct Engine Start-up
....................................................................................................................
25

SWE90UF-2PB Operation & Maintenance Manual
1.3.3 Starting Engine in Cold Weather
......................................................................................................
26
1.3.4 Safe Operation
....................................................................................................................................
26
1.3.5 Notes for Rubber Track
.....................................................................................................................
27
1.3.6 Operation on Slopes
..........................................................................................................................
27
1.3.7 Operation on Snowy Ground
............................................................................................................
28
1.3.8 Avoid Tipping-Over
...........................................................................................................................
28
1.3.9 Preventing Accidents While Backing or Swinging
..........................................................................
29
1.3.10 Avoiding Accidents Caused By Control Failures
...........................................................................
30
1.3.11 Moving Machine Safely
...................................................................................................................
30
1.3.12 Safety Rules During Traveling
.........................................................................................................
31
1.3.13 Traveling on Slopes
..........................................................................................................................
32
1.3.14 Safety Rules During Towing
............................................................................................................
32
1.3.15 Machine Transportation
..................................................................................................................
33
1.3.16 Parking Machine Safely
...................................................................................................................
33
1.4 SAFETY MAINTENANCE INFORMATION................................................................................................ 35
1.4.1 Using Warning Signs
..........................................................................................................................
35
1.4.2 Parking Machine Prior to Maintenance
...........................................................................................
35
1.4.3 Safety Maintenance Rules
.................................................................................................................
35
1.4.4 Tips for Using a Hammer
...................................................................................................................
37
1.4.5 Precautions of Welding and Polishing
.............................................................................................
37
1.4.6 Avoiding Heating Pipes Containing Flammable Liquids
................................................................
37
1.4.7 Avoiding Heating near Pressure Oil Pipes
.......................................................................................
38
1.4.8 Removing Paint Before Welding or Heating
...................................................................................
38
1.4.9 Attachments
........................................................................................................................................
38
1.4.10 Maintenance Precaution of Track Tension Mechanism
...............................................................
39
1.4.11 Safety Rules for High-pressure Oil
.................................................................................................
39
1.4.12 Safety Operation for High-pressure Hoses
...................................................................................
40
1.4.13 Accumulator
......................................................................................................................................
40
1.4.14 Preventing Accumulator Explosion
................................................................................................
40
1.4.15 Waste Disposal
.................................................................................................................................
41
2 TRANSPORT AND STORAGE........................................................................................................................42
2.1 TRANSPORT...............................................................................................................................................43
2.1.1 General Transport Instructions
.........................................................................................................
43
2.1.2 Transport Specification
......................................................................................................................
43
2.1.3 Driving Onto or Off a Platform Trailer
.............................................................................................
43
2.1.4 Loading
................................................................................................................................................
45
2.1.5 Tying Down the Machine
..................................................................................................................
46
2.1.6 Unloading
............................................................................................................................................
46
2.1.7 Lifting Machine
...................................................................................................................................
47
2.2 STORAGE....................................................................................................................................................48
2.2.1 Before Storage
....................................................................................................................................
48
2.2.2 During Storage
...................................................................................................................................
49
2.2.3 After Storage
.......................................................................................................................................
49

SWE90UF-2PB Operation & Maintenance Manual
3. ABOUT MACHINE..........................................................................................................................................50
3.1 POSITION OF MACHINE COMPONENTS............................................................................................... 51
3.2 CAB（CLOSED）.......................................................................................................................................52
3.3 MONITOR METER......................................................................................................................................53
3.3.1 Meter Functions
..................................................................................................................................
54
3.3.2 Descriptions of Display Range and Alarm
.......................................................................................
54
3.3.3 Buttons
................................................................................................................................................
55
3.4 CONTROL PANEL...................................................................................................................................... 56
3.5 RADIO.........................................................................................................................................................58
3.5.1 Panel Functions
..................................................................................................................................
58
3.5.2 Performance Index
.............................................................................................................................
58
3.5.3 Operation Instructions
.......................................................................................................................
59
3.5.4 Radio Bluetooth Function
..................................................................................................................
60
3.6 SEAT ADJUSTMENT...................................................................................................................................62
3.7 AIR CONDITIONER....................................................................................................................................63
3.8 PILOT CONTROL HANDLE....................................................................................................................... 64
3.9 THROTTLE CONTROL............................................................................................................................... 64
3.10 CAB TOPLIGHT........................................................................................................................................ 65
3.11 FRONT WINDOW....................................................................................................................................65
3.12 WIND HOOD AND COVERING PARTS................................................................................................. 66
3.13 ACCESSORIES.......................................................................................................................................... 66
3.14 DECALS.....................................................................................................................................................66
4. MACHINE OPERATION.................................................................................................................................67
4.1 MACHINE WORKING ENVIRONMENT....................................................................................................67
4.2 RUNNING-IN OPERATION.......................................................................................................................67
4.3 OPERATING ENGINE.................................................................................................................................68
4.4 TRAVEL CONTROL.................................................................................................................................... 72
4.5 EXCAVATION............................................................................................................................................. 75
4.6 EXCAVATOR PARKING..............................................................................................................................77
4.7 LIFTING WORK...........................................................................................................................................82
4.8 BOOM SWING........................................................................................................................................... 85
4.9 OPERATION OF BOOM SECTION TWO..................................................................................................86
4.10 AIR CONDITIONER OPERATION........................................................................................................... 87
4.10 ACCUMULATOR...................................................................................................................................... 93
4.11 MAIN POWER WITCH.............................................................................................................................94
5. MAINTENANCE..............................................................................................................................................95
5.1 MAINTENANCE RULES............................................................................................................................. 96
5.1.1 Correct Maintenance and Inspection Procedure
............................................................................
96
5.1.2 Checking Excavator before Daily Starting
.......................................................................................
96
5.1.3 Periodic Inspection of Work Hour Meter
.........................................................................................
96
5.1.4 Preparation for Maintenance
............................................................................................................
97
5.1.5 Using Fuel and Lubricant Correctly
..................................................................................................
97

SWE90UF-2PB Operation & Maintenance Manual
5.1.6 Checking Discharged Grease and Used Filter Element
..................................................................
97
5.1.7 Inspection after Maintenance
...........................................................................................................
97
5.1.8 Electrical System Maintenance
..........................................................................................................
98
5.1.9 Hydraulic System Maintenance
........................................................................................................
98
5.2 OIL, COOLANT AND FILTER ELEMENT................................................................................................... 99
5.2.1 Lubricant and Hydraulic Oil
...............................................................................................................
99
5.2.2 Fuel
......................................................................................................................................................
99
5.2.3 Coolant in Cooling System
..............................................................................................................
100
5.2.4 Grease
................................................................................................................................................
100
5.2.5 Oil Storage
........................................................................................................................................
101
5.2.6 Filter Element
....................................................................................................................................
101
5.3 TIGHTENING TORQUE SPECIFICATION................................................................................................102
5.3.1 Tightening Torque for Bolts and Nuts
...........................................................................................
102
5.3.2 Tightening Torque Table of Hoses
.................................................................................................
102
5.4 ENGINE MAINTENANCE GUIDE............................................................................................................ 104
5.4.1 ADDING LUBRICATION GREASE..................................................................................................................104
5.4.2 Engine Oil
..........................................................................................................................................
104
5.4.3 Gear Oil
.............................................................................................................................................
105
5.4.4 Hydraulic System
..............................................................................................................................
105
5.4.5 Fuel System
.......................................................................................................................................
106
5.4.6 Air Filter
.............................................................................................................................................
107
5.4.7 Cooling System
.................................................................................................................................
107
5.4.8 Air Conditioning System
..................................................................................................................
108
5.4.9 DPF Regeneration
............................................................................................................................
109
5.4.10 Others
..............................................................................................................................................
113
5.4.11 Hoses
...............................................................................................................................................
114
5.4.12 Wearing Parts
.................................................................................................................................
115
5.4.13 Maintenance under Special Situation
..........................................................................................
115
5.4.14 Protective Measures for a Long Time Storage
...........................................................................
116
5.5 MACHINE MAINTENANCE SCHEDULE................................................................................................. 118
5.5.1 Daily Maintenance (Every 8 Hours)
................................................................................................
118
5.5.2 Maintenance in Running-in Period (First 50 Hours)
....................................................................
121
5.5.3 When Maintenance Required
.........................................................................................................
123
5.6 COMMON FAILURES AND SOLUTIONS............................................................................................... 135
5.6.1 Non- Failure
.....................................................................................................................................
135
5.6.2 Troubleshooting
...............................................................................................................................
136
6. SWE90UF TECHINIAL PARAMETERS....................................................................................................... 151
6.1 MACHINE SPECIFICATION..................................................................................................................... 151
6.2 DIMENSION............................................................................................................................................. 152
6.3 WORK PARAMETER
............................................................................................................................
153
6.4 CIRCUIT DIAGRAM..................................................................................................................................154
6.5 ELECTRICAL COMPONENTS TABLE...................................................................................................... 155
6.6 HYDRAULIC SCHEMATIC........................................................................................................................156
6.7 HYDRAULIC COMPONENTS TABLE...................................................................................................... 157

SWE90UF-2PB Operation & Maintenance Manual
6. 8 NOISE & VIBRATION DESCRIPTION.................................................................................................... 158
7. OPERATION INSTRUCTION OF ATTACHMENT.....................................................................................159
7.1 SAFETY NOTE.......................................................................................................................................... 159
7.2 NOTE FOR ASSEMBLING ATTACHMENT..............................................................................................159
7.3 ASSEMBLY PARAMETER OF ATTACHMENT.........................................................................................160
7.3.1 Assembly Size of Structural Parts
...................................................................................................
160
7.3.2 Pipeline Introduction
.......................................................................................................................
162
7.3.3 Pipeline Assembly Parameter
.........................................................................................................
163
7.4 HYDRAULIC HAMMER BREAKER........................................................................................................... 164
7.4.1 Main Use of Hydraulic Hammer breaker
.......................................................................................
164
7.4.2 Control of Hydraulic Hammer breaker
..........................................................................................
164
7.4.3 Operation Key Points of Hydraulic Hammer breaker
...................................................................
165
7.4.4 Safe Operation of Hydraulic Hammer Breaker
.............................................................................
166
7.4.5 Replacing Hydraulic Oil And Filter Element
..................................................................................
168
7.4.6 KEY POINTS FOR HYDRAULIC CLAMP BREAKER
..........................................................................
169
7.5 HYDRAULIC QUICK-CHANGE................................................................................................................170
7.5.1 Control of Hydraulic Quick-Change
..............................................................................................
170
7.6 OPERATION PROCEDURE OF ATTACHMENT CONTROL...................................................................171
7.7 OPTIONAL PARTS LIST........................................................................................................................... 172
8 MANUFACTURER INFORMATION............................................................................................................ 173

SWE90UF-2PB Operation & Maintenance Manual

SWE90UF-2PB Operation & Maintenance Manual
1
1 SAFETY RULES
Warning
Please thoroughly read and make sure that all precautions described in this manual or safety labels
are understood completely. Follow all instructions when operating or servicing this machine.

SWE90UF-2PB Operation & Maintenance Manual
3
1.1 SAFETY LABELS
1.1.1 Location of Safety Labels
Fully understand the correct position and contents of safety labels in this machine.
To ensure that the content of labels can be read properly, be sure that they are in right place
and always keep them clean. When cleaning them, do not use solvents or gasoline. It may
cause labels to peel off.
There are also other labels in addition to warning labels. Handle these labels in the same way.
In case the labels are damaged, lost or not legible, replace them with new ones. For details of
the part number, refer to parts manual or actual label, and place an order with SUNWARD or
our authorized distributors.
1.1.2 Safety Labels Instructions
(1) Safety Operation Label
Please read all safety precautions carefully written in labels
and all information concerning safety, prior to operate
machine.
Maintenance frequently and replace safety label if
required. In case that safety labels or manual are damaged
or lost, you can place an order with our distributors. The
procedure of ordering them is identical with that of the
other parts and components. You must specify model of
the machine when ordering.
Use only trained and qualified personnel to operate this
machine. Follow all safety precautions and instructions in
this manual to keep your machine in good condition.
Do not alter or modify machine rashly, this may impair
function and effect service life or jeopardize personal
safety.
Caution: all safety information described in this manual
covers only basic safety information of this machine. It’s
not possible to predict every circumstance which might

SWE90UF-2PB Operation & Maintenance Manual
4
involves potential hazards. So it’s necessary to ask for
instruction from your superior before attempting any
operation or maintenance procedure.
(2) Engine Operation Label
Diesel engine inspection
Stop machine on level ground, inspect engine oil level
(stop engine for longer than 15 minutes to allow engine
oil to go back to the bottom), inspect dipstick to make
sure oil level must be between the lines of “MIN” and
“MAX”. For engine maintenance procedures, please
refer to the “diesel engine maintenance manual”
enclosed with the other literature of the machine.
Pre-start inspection
Keep control lever of pilot valve in LOCK position, pilot
handle and travel pull link are in normal position (neutral
position), operator sit over seat.
While switching the key to ON position, except engine
hour meter and LCD module, all indicators of test system
must light up. Buzzer must sound as well. Self-test is
finished in 2 seconds to indicate test system is or is not
properly functioning.
Start the engine
Keep control lever of pilot valve at LOCK position.
Switch key to ON position.
Honk the horn to alert the persons around.
Turn the key to the right; hold it in START position until
engine runs. Then release the key, switch will automatically.
Return to ON position.
Caution
Do not operate motor for longer than 5 seconds
ever time to avoid damage to machine. In case of
failure to start engine, switch the key back to OFF
position, wait 2 minutes before a new attempt.
Incorrect start may damage to starter.

SWE90UF-2PB Operation & Maintenance Manual
5
(3) Diesel Label
Caution
Refilling fuel with extra care. Stop engine
before refilling fuel. Do not smoke while
refilling to fuel tank or operating around fuel
system.
Select proper fuel according to different
ambient temperature.
Refer to “stop engine” section for properly parking
machine and stopping engine.
Inspect fuel gauge on monitor, top up is required.
Prevent dirt, dust, water and other foreign matter
from entry into oil tank and fuel system.
While refilling at the end of daily work-shift, do not
spill, drip any fuel to machine or ground to avoid fuel
clotting.
After refilling fuel, fasten cap securely.
(4）Machine Posture Label
Caution
Do not start engine when hydraulic oil tank
runs out of oil.
Inspect hydraulic oil level……every day
Park machine on level ground.
Completely retract arm cylinder and extend bucket
cylinder to full length.
Lower bucket down to the ground.
Run engine at low speed for 5 minutes.
Shut down engine, remove the key.
Place pilot control lever to LOCK (up) position.

SWE90UF-2PB Operation & Maintenance Manual
6
Open right side door to check oil level gauge.
Located on hydraulic oil tank, oil level must be within
level marks. Drain oil if level is higher than MAX mark,
refill if level is below MIN mark.
Fill oil：
Remove upper breather screw cap by rotating
anticlockwise.
Refill oil through strainer. Recheck oil level gauge.
Fasten cap securely.
(5) Maintenance and Lubrication Label
Proper procedure of maintenance and inspection
Learn about how to properly service machine. Perform
proper maintenance and inspection procedure in
accordance with this manual. Inspect machine before
starting machine.
Check monitor.
Check each liquid level.
Check hose and piping for leakage, twist, wear out or
damage.
Check surrounding the machine for any signs of noise,
heat etc.
Check parts for looseness and lost.
Caution
If any problems are detected, repair prior to
operation, or contact our authorized
distributor.
Use recommended fuel, hydraulic oil and lubricant.
Use only genuine SUNWARD components.
The warranty is not applicable for any damages

SWE90UF-2PB Operation & Maintenance Manual
7
arising from failure to use SUNWARD recommended
fuel, lubricant, hydraulic oil and genuine SUNWARD
components.
Do not adjust engine speed limiter or safety valve of
hydraulic system.
Do not allow water or vapor to reach electrical
equipment.
Do not disassemble components such as engine
pump controller, sensor etc.
(6) Wiper Label
Use the wiper properly.
(7) Filter Element Maintenance Safety Label
Replace pilot oil filter ……every 1000 hours
Stop machine on firm level ground.
Lower bucket to the ground.
Run engine at low-speed for 5 minutes.
Shut down the engine, remove the key.
Release inner pressure in the hydraulic system by
operating left and right pilot handles.
Set pilot control lever in LOCK (UP) position.
Use wrench for filter to remove filter housing off the
filter head cover by rotating counterclockwise.
Remove filter core and used O-ring.
Clean the area in contact by head cover and O-ring.
Apply a new layer of fresh hydraulic oil, and place it in
position.
Lubricate new filter core with a thin layer of clean

SWE90UF-2PB Operation & Maintenance Manual
8
hydraulic oil on the ring section. Push filter core
upward while moving it forward and backward
alternately to install it.
Clean filter housing.
Rotate clockwise to tighten filter housing to head
cover. Tighten at torque: 19.5—29.5Nm (2-3 kgf.m).
(8) Engine Hood Label
Warning
Shut down engine before opening engine hood.
Be cautious of scalding after opening engine hood.
(9) Work Device Label
Warning
Stay clear of working device.
(10) Swing Label
Warning
Keep clear of swing area.
(11) Tail Warning Label
Warning
Stay clear of machine while it is running.
(12) Lifting Direction Label

SWE90UF-2PB Operation & Maintenance Manual
9
(13) Traction Hook
(14) Anti- scald Label
After running operation, engine oil, gear oil and
hydraulic oil is getting hot, so do engine, hoses,
pipelines or other components. Be cautious of
scalding.
Attempt inspection and maintenance procedure, after
machine components and oil cool down.
There is pressure in hydraulic oil tank. Relieve
pressure before opening cap to avoid oil spurt.
There is pressure which builds up in hydraulic piping.
Relieve pressure prior to repair or replacing.
（15）Preventing Hands from Being Clamped by Fan
Fan would run at high speed while engine is active.
Pay much attention to prevent hand, foot, hair and
clothing being caught in fan blade, when attempting
any inspection and maintenance procedures on
machine.
(16) Operation Label
This machine is equipped with two pilot control
handle and two travel control lever which control
working device motion, swing action of upper
structure, machine travel accordingly.
The right pilot handle controls motions as below：
a. boom rise

SWE90UF-2PB Operation & Maintenance Manual
10
b. boom fall
c. backhoe bucket load, or clamshell bucket load
d. backhoe bucket dump, or clamshell bucket dump
Left pilot handle controls motion as below：
e. upper-structure rotate anticlockwise
f. upper-structure rotate clockwise
g. arm out
h. arm in
Operation together with two pilot handles can also
take compound motion. In addition, horn switch
button is fixed on the handle.
Two travel control lever control forward motion,
reverse motion and steering of the machine.
（17）Direction Label
This label indicates travel direction of machine when
“travel control lever is pushed forward”.
Warning
In case that driving wheel is located underneath cab,
machine will travel rearward when pushing “travel
control lever” forward. (On this occasion, symbol
indicates backward).
(18) No Stepping Label
Warning
Stay clear of operation area of working device.

SWE90UF-2PB Operation & Maintenance Manual
11
(19) Pilot Safety Lock Label
(20) Fuel Label
Warning
Handle fuel with extra care because
it’s highly flammable. In case that
fuel is ignited, this can cause
explosion or fire, and even death or
injury to person.
Always refilling fuel at outdoor. Before
refilling, the engine should be shut down.
Do not refill fuel while smoking or near fire
or sparks.
All fuel and most of lubricants are
flammable.
Flammable liquid should be stored at proper
place far from fire.
Do not burn out or stab at pressurized
container.
Do not store rags containing oil. This can
cause self-ignition and can be lighted up.
Fasten cap of filling opening.