Yuchai YC310LC-8 User manual

Operation Manual
This manual comes to you with the Hydraulic excavator.
Please preserved carefully.
YC310LC-8
YC360LC-8
Hydraulic
Excavator

Warning
Incorrect operation of the machine will cause death. Thus, before using this machine, you should do
what described as following.
●Keep in mind the safety procedures of the machine and the correct use specifications.
●Read to understand the content related to the safe handling of the machine in the manual.
●Understand and be familiar with all of the safety signs on the machine.
●Keep unnecessary personnel to leave the workplace.
●Before the formal operation in the workplace, you should have prior training of the safe operation of
the machine.
You are responsible for compliance with relevant laws and regulations and to comply with the relevant
guidance of Yuchai Heavy Industry Co., Ltd. for operating and maintaining the machine.
YUCHAI is registered by Yuchai Heavy Industry Co., Ltd.

1.
Contents
To the Users 2..............................................................................................................................................
Product Information 3...................................................................................................................................
Direction of the Machine 5...........................................................................................................................
Composition of the Machine 7......................................................................................................................
Technical Specifications 8............................................................................................................................
General Safety 2..........................................................................................................................................
Safety Tips 3................................................................................................................................................
Safety Equipment 4......................................................................................................................................
Safety Signs 5..............................................................................................................................................
Workplace Safety 13....................................................................................................................................
Safe Operation 14........................................................................................................................................
Transport and Handling Machine 34............................................................................................................
Stop the Machine and the Maintenance 35..................................................................................................
Fire Prevention, Explosion-proof and Anti-poisoning 36..............................................................................
Battery 37.....................................................................................................................................................
Hydraulic System 39....................................................................................................................................
Overview of Operating Equipment 2............................................................................................................
Monitor 3......................................................................................................................................................
Main Screen and Basic Operations 4...........................................................................................................
Left Dashboard 9..........................................................................................................................................
Command Control Panel (cab left) 11..........................................................................................................
Safety Locking Parts 12...............................................................................................................................
Manipulation of the Working Device and the Rotary Equipment 13.............................................................
Walking Manipulation 14..............................................................................................................................
Throttle Operation 15...................................................................................................................................
Driver's Seat 16............................................................................................................................................
Seat Belt 17..................................................................................................................................................
Air-conditioning Control 18...........................................................................................................................
Radio 22.......................................................................................................................................................
Doors and Windows 24................................................................................................................................
Preparations before Operating this Machine 2.............................................................................................
Engine Operation 3......................................................................................................................................
Getting in or out of the Machine 7................................................................................................................
Moving of the Machine 8..............................................................................................................................
Turning the Machine 10................................................................................................................................
Rotation of the Machine 13..........................................................................................................................
Selection of Machine Work Mode 14...........................................................................................................

Working Device Operation 15......................................................................................................................
Working on Slopes or in Water 17................................................................................................................
Out of the Muddy Environment 18...............................................................................................................
Construction Operations Guide 19...............................................................................................................
Disassembly and Installation of the Bucket 21.............................................................................................
Parking the Machine 22...............................................................................................................................
After Operation 23........................................................................................................................................
Handling and Transport of the Machine 24..................................................................................................
Operating under the Hot or Cold Climate 29................................................................................................
Storage of the Machine 30...........................................................................................................................
Reasons of Technical Failures and Solutions 32.........................................................................................
Maintenance Knowledge 2...........................................................................................................................
Maintenance Summary 4.............................................................................................................................
Parts of Mandatory Replacement 6..............................................................................................................
Oil Selection Table 7....................................................................................................................................
Tightening Torque 8......................................................................................................................................
Regular Inspection and Maintenance Table 11............................................................................................
Regular Inspection and Maintenance Table (continued) 13.........................................................................
Routine Examination 15...............................................................................................................................
Engine Fuel System 16................................................................................................................................
Engine Cooling System 21...........................................................................................................................
Engine Lubrication System 25.....................................................................................................................
Engine Intake System 28.............................................................................................................................
Other Maintenance of the Engine 29...........................................................................................................
Hydraulic System 30....................................................................................................................................
Battery 38.....................................................................................................................................................
Reducer 40...................................................................................................................................................
Track 43.......................................................................................................................................................
Supporting wheel, under roller and idler 45.................................................................................................
Lubricating 46...............................................................................................................................................
Air Conditioning 47.......................................................................................................................................
Bucket Teeth Replacement 50.....................................................................................................................
Washing the Floor Pads 51..........................................................................................................................
Safety issues 2.............................................................................................................................................
Accessories Installation and Removal Steps 4............................................................................................
Accessories Instruction Guide 5...................................................................................................................
Daily Inspection of Hydraulic Breaking Hammer 10.....................................................................................

1
Foreword
1-1

To the Users
Dear User:
Welcome you use Yuchai Heavy excavators and thank you for your strong cooperation with Yuchai
business.
The manual is mainly provided for the use of the drivers and maintenance personnel. Hope you can
read the manual carefully before the operation and maintenance of the machine, and be in strict
accordance with the manual on safety procedures, use methods, lubrication and regular maintenance
requirements. The proper methods, regular maintenance and repair are the necessary guarantees for
the machine to work reliably and extend work life, as well as to play a good role in the work.
Please make the overhaul repair and adjust the machine in the repair stations and agencies that are
commissioned by our company, and use the genuine accessories and spare parts provided by our
company. If non-genuine accessories and parts have been used, then perhaps there is no significant
impact on the machine, but they are likely to cause a series of adverse consequences to the machine in
the future. If the machine failures are caused by the non-genuine accessories, parts or the organization
without the authorization of our Company, even in the warranty period, Yuchai Heavy Industry Co., Ltd.
does not assume the warranty service.
Based on the principle of “Customer First”, Yuchai Heavy constantly improves products to provide the
best products to the users. Thus, the improvement may be implemented at any time, without replacing
the information and prior notice to the product on sale.
Sincerely hope that this machine can serve you better and create greater value under your proper use
and care.
Guang Xi Yuchai Heavy Industry Co., Ltd.
1-2

Product Information
When you need know the basic information of the machine, you can view the location in the picture.
●Whole Machine Information (the whole machine nameplate is on the left front
side of the platform)
●Engine Information
1-3

●Machine Operating Information (the operating information of the machine can
be displayed by the monitor in the cab)
Machine File
Please fill the table below with serial number of your machine and its engine and other data. When you
need to buy machine parts or want to obtain the information, you can tell Yuchai these codes.
Please record these numbers, and keep them well with the product certification. In case that your
machine is stolen, you can submit the information to the local public security organs.
●Machine Model
●Machine serial number
●Engine serial number
●Information of the dealer
1-4
Operation time

Direction of the Machine
The directions of front, back, left, right, up and down in the manual refer to the directions as shown in
the following diagram.
Front
Left
1-5
Up
Down
Right
Rear

1-6

Composition of the Machine
1. hydraulic oil tank
2. fuel tank
3. Boom Cylinder
4. Boom
5. Stick Cylinder
6. Stick
7. Bucket oil cylinder
8 Bucket
9. Guide wheel
10. Track
11 Driving wheel
1-7

Technical Specifications
Note: The above structural parameters are the nominal value, and their changes in the plant are without prior notice.
1. Structure size parameters
Code
Item
Unit
YC310-8
YC360-8
895
896
Operating Weight
Kg
31640
33620
Standard bucket capacity
M3
1.43
1.63
Engine Name
Cummins 6C8.3
Cummins 6C8.3
Engine power
KW/rpm
186/2200
186/2200
A
Length
mm
10795
11250
B
Height
mm
3360
3160
C
Overall Width
mm
3260
3260
D
Track width
mm
600
600
E
Platform Rotation radius
mm
3364
3552
F
Track length
mm
4961
4961
G
Tread
mm
2060
2060
H
Chassis passing height
mm
530
530
J
External platform width
mm
2980
2980
L
Platform ground clearance
mm
1245.5
1245.5
Maximum driving speed
Km/h
5.3
5.2
Platform slewing speed
Rpm
10.7
9.5
1-8

1-9

2. Operating parameters
Note: when manufacturer do some change, they will not give prior notice.
Code
Item
Unit
YC310LC-8
YC360LC-8
895
896
A
Maximum digging height
Mm
10190
10320
B
Maximum dumping height
Mm
7165
7255
C
Maximum digging depth
Mm
7410
7366
D
Maximum digging radius
Mm
10620
11095
D1
Maximum digging distance of
ground level
Mm
10420
10900
E
Digging radius of the maximum
digging height
Mm
6670
7280
F
Minimum rotation radius
Mm
3825
4224
Maximum digging force of bucket
KN
175
200
1-10

3. Walking structure
An independence drive is by a hydraulic motor through the multi-stage planetary reducer.
4. Bucket
5. Bucket work environment
Walking speed (km/h)
Maximum traction (kn)
Climbing ability
High speed
5.2
225
70%
Low speed
3.1
347
895
896
Bucket Capacity (m3)
1.43
1.63
Bucket width(mm )
1463
1605
Weight(kg )
Bucket teeth
5
5
Bucket type
895
896
Bucket Capacity(m3)
1.43
1.63
Standard boom
Standard Stick
Normal assembly
E
E
Code
A
B
C
D
E
X
The weight
scope of the
work object
≤1200kg/m
200kg/m~
1600kg/m
1600kg/m~
1800kg/m
1600kg/m~
1800kg/m
1900kg/m~
200kg/m
Unavailable
Soil level
Sand and silt,
mud, planting
soil
Light clay, small
rocks, mud,
planting soil with
root
Loam, heavy
sand, dry loess
Heavy sand,
Hard loess,
Clay with
stones
Dense hard-
loess, Light marl
stone, frail shale
1-11

6 Hydraulic hammer (Optional)
7. Working environment of the hydraulic hammer
Note: ★mainly applying to the breaking of the higher level road(such as highways), the disruption of
the municipal roads, low-rise building demolition, the breakage of the wind fossils, the second crushing
of the small ore which is of the low-grade hardness.
X Unavailable
8. Hydraulic system
Inverted flux control hydraulic system
Main valve: imported multi-pass valve
Maximum flow of the system 2 x 260+30（YC310LC-8）2 x 280+30
（YC360LC-8）
Pressure 32.5
Return Line Oil Filters 10µm
Oil filters 150µm
9. Electrical system
Voltage: 24V
Battery: 2x120ah
10. Normal work environment
Environment temperature: -15℃～40℃
Type
Tower-type
Length (mm)
2823
Striking frequency (bpm)
350～600
Weight (kg)
1754
Accessory Type
Tower-type
Standard boom
Standard Stick
Normal assembly
★
Heavy boom
Heavy stick
Normal assembly
★
1-12

2
Safety Regulations
2-1

General Safety
Follow the relevant safety regulations in this manual, and most of the accidents caused by the
dangerous operation and maintenance of the machine will be avoided. Before you operate or maintain
your company, please have an understanding of this manual and all of the safety information of the
machine in the diagram.
The content relating to safety of this manual specifies the possible situation during the normal operation
and maintenance, as well as the reasonable treatment of these situations.
The safety related content found in every chapter of the manual and the content in this chapter consist
of the comprehensive guidance for the safety.
The content of the manual and safety information on the machine will not include all potential hazards
and possible response measures. If the methods or actions you take are not recommended or allowed
in this manual or on the machine, you are responsible for taking necessary measures to ensure safety.
In any case, you can not engage in any prohibited use or operation in this manual.
The excavator should be operated and maintained by the person who has been trained and qualified.
Before starting work, you should check the various functions of the machine. If there is something
wrong, you should immediately stop the machine and find the reason. The work can be carried out only
after troubleshooting.
Inspection, maintenance and repair of the machine must be in accordance with the provision in this
manual, and the control personnel should operate the machine in the manipulation methods and the
working scope of the machine and under the safety regulations provided in this manual.
If you are in the influence of alcohol or drugs, do not operate or maintain the machine, which will make
you and the people around you in danger.
You must know the meaning of the related signals and gestures.
When you are driving this machine on the road, you must be familiar with the relevant laws and
regulations of the county or territory, and strictly adhere to them.
Please operate the machine after making sure that there’re no other people in the work area.
This machine is only used for digging under the normal ground conditions; please do not use it under
the water, in the culverts and the explosive places, toxic environment, and other dangerous conditions.
2-2

Safety Tips
1. Warning signs
2. Safety warnings
This manual provides the safety precautions, identifications and description of potential hazards, and
the operator should read this manual, the safety identity attached to the machine carefully before
operation, maintenance, and repair of the machine, and do the work in accordance with relevant
procedures.
Safety warnings of the machine are indicated by the "Dangerous", "Warning" "Note" and other
words, whose corresponding explanations are as follows:
In this manual, the warning signs refer to important information about safety.
When you see this sign, you should carefully read the information and advice of
the signs to avoid possible injury or death.
If it is not avoided, the consequence of the danger will result in death or serious
injury. This word applies to only a few occasions of the most serious risk.
If it is not avoided, the consequence of the potential danger could result in death
or serious injury.
If it is not avoided, the consequence of the potential danger may lead to low or
moderate injury. This word can also be used to prompt the unsafe operation which
may lead to the personal injury.
●Note:
●Dangerous:
●Warning:
2-3

Safety Equipment
1. Protective equipments of the operators
2. Escape hammers
1) Before the operation and maintenance, the
operators must wear tight-fitting suitable
overalls, helmets, shoes and other work-
related safety products (such as: ear
protection, gloves, protective glasses, belts,
etc.).
2) If the operator's hair is too long, please band
it, and cover up it with a helmet, which will
protect your hair from being entangled in the
machine.
3) The user must have the emergency medicine
in the machine, and conduct regular
inspections, if necessary, add drugs for the
use when needed.
5) Before the operation and maintenance, you
must check if all the protective equipment is
functioning properly.
Both the escape hammer and fire extinguisher
are installed on the rear left column of the cab.
Escape hammers should be installed on the on
the right side of the wall in the cab.
When trapped in the cab and needing escape,
you should hit the glass with the escape
hammer’s tip against the glass until the glass is
shattered. When striking, please protect your
eyes and face.
When the machine is on fire, put out the fire with
the fire extinguisher of the machine.
Please read the use manual of the fire
extinguisher carefully and do strictly according
to the manual.
Check and maintain the fire extinguisher
periodically.
2-4