Yuchai U20 Manuals

Manuals and User Guides for Yuchai U20. We have 1 Yuchai U20 manual available for free PDF download: Operation Manual

Yuchai U20 Operation Manual (153 pages)

HYDRAULIC EXCAVATOR

Brand: Yuchai | Category: Excavators | Size: 7 MB

Table of Contents
3
Foreword
10
To Users
10
Machine Information
11
Machine Directions
13
Machine Components
14
General Operation Information
15
Specified Operations
15
Break-In
15
Safety-Related Information
15
Technical Specifications
17
Dimension Paragauges
17
Working Paragauges
18
Traveling Mechanism
19
Hydraulic System
19
Electric System
19
Working Condition
19
Interference
20
Safety Rules
21
General Safety Rules
21
Safety Labels and Instructions
22
Safety Equipment
22
Security Signs
23
Classification of Safety Signs
23
Location of Safety Signs
24
Safety Signs and Descripton
25
Workplace Safety
29
Safe Operations
30
Start the Engine
30
Travel and Swinging
31
Safety Rules When Traveling
32
Traveling or Working on Slopes
32
Safe Excavation Operations
35
Tip and Skipping Prevention and Countermeasures
39
Transportation and Handling
40
Downtime Maintenance
41
Fire, Explosion and Poisoning Prevention
42
Battery
44
Hydraulic System
45
Introduction of Components
49
Control Consoles
49
Safety Locking Components
50
Switch Assembly
51
Electronics Controls
52
Key (Start Switch Operation)
52
Cigarette Lighter
53
Monitor
53
Work Devices and Swing Controls
54
Travel Control
55
Throttle Handle and Stop Handle
55
Driver's Seat
56
Seatbelt
56
Operation Instructions
58
Preparation before Operating the Machine
58
Engine Operation
59
Check before Starting the Engine
59
Starting the Engine
60
After Starting the Engine
63
Shut down the Engine
63
Check after Turning off the Engine
64
Enter and Exit the Machine
64
Traveling
65
Safety Principles for Traveling
65
Preparation for Traveling
66
Travel Forward
66
Travel Backward
67
Stop the Machine
67
Steering
68
Turning When the Machine Is Stopped
68
Rotation
69
Working Deviceoperations
69
Arm Control
69
Rotation Control
70
Boom Control
70
Bucket Control
70
Boom Deflection Control
70
Dozer Blade Control
70
Working on Slopeor Water
71
Slope
71
Getting out of the Muddy Environment
72
Generaloperations Instruction
73
Backhoe Operation
73
Loading Operation
73
Trenching Operations
74
Backfilling or Grading
74
Shakeoff the Soil Stuck in the Bucket
74
Precautions for the Useof Related Parts
74
Removaland Installation of Bucket
75
Disassembly
76
Parking
77
After Operation
78
Check
78
Lock up
78
Loading and Unloading and Transportation
78
Safety Rules
78
Loading
79
Fixing the Machine on the Transport Vehicle
81
Unloading from the Transport Vehicle
81
Lifting Machine
82
Operation in Cold/Hot Climate
83
Operation in Cold Climate
83
Operating in Hot Weather
84
Storageof the Machine
85
Preparation before Storage
85
During Storage
86
Returning to Work after Storage
86
Causesof Technical Failures and Solutions
87
Maintenance
94
General Knowledge of Maintenance
94
New Machine Break-In
94
Working in Dusty Sites
94
Oil and Filter
94
Timer Readings
95
Usegenuine Parts
95
Waste Disposal
95
Prevent Objects from Falling into the Machine
95
Periodic Inspection and Maintenance
96
Review after Inspection and Maintenance
96
Maintenance Summary
97
Lubricant
97
Fuel
97
Grease
97
Coolant
98
Filter Element
98
Hydraulic System
98
Electrical System
99
Wear and Tear Parts
99
Mandatory Replacementparts
100
Oil Selectiontable
101
Tightening Torque
102
Tightening Torque for General Parts
102
Tightening Torque for Hydraulic Hoses
103
Periodic Inspection and Maintenance Table
105
General Checking
107
Engine Fuel System
107
Oil Level Check Andrefueling
107
Drain Water and Contaminants from the Tank
108
Cleaning the Fuel Tank
108
Check the Injection Pressure
109
Vent Air from Fuel Circuit
109
Changing the Fuel Filter
109
Replacethe Fuel Filter
110
Engine Cooling System
111
Check the Coolant Level
111
Check the Condition of the Rubber Hosesand Clamps
111
Clean and Inspect the Radiator Blades
112
Coolant Replacement
112
Check the Coolant Concentration
113
Engine Lubrication System
114
Oil Level Check
114
Changethe Engine Oil
114
Replacethe Engine Oil Filter Element
115
Oil Filter Replacement
115
Engine Air Intake System
116
Cleaning of Dust Collection bin
116
Clean the Air Filter Element
116
Replacethe Air Filter Element
117
Check the Air Inlet Pipe
117
Other Enginemaintenance
118
Hydraulic System
119
Check the Oil Level in the Hydraulic Oil Tank
119
Drain the Water and Dirt in the Hydraulic Oil Tank
120
Replacethe Hydraulic Oil and Clean the Oil Suction Filter
121
Vent Air from the Hydraulic System
122
Replacethe Return Oil Filter Element
124
Replacethe Pilot Oil Filter Element
125
Battery
127
Storage of Battery
127
Charging of the Battery
127
Installation of the Battery
128
Battery Maintenance
129
Speedreducer
130
Traveling Reducer
130
Replacethe Lubricant (for Eachgearbox)
131
Check the Tightening Torque of the Bolts Connectingthe Travel Reducer and the Slewing Reducer
131
Check the Solidity of the Connecting Bolts of the Slewing Reducer
131
Tracks
132
Idler Wheel and Guide Wheel
133
Lubrication
133
Replacementof Bucket Teeth
136
Flushing of the Floor Mat
137
Attachment Guide
138
Safety Issues
138
Safeoperation of Attachments
138
Removing or Installing Attachments
139
Attachment Installation/Removal Procedure
140
Attachment Operation Guide
141
Hydraulic Hammer
141
Daily Inspection of Hydraulic Hammer
145
Quick Coupler
146
Installation of Grab Bucket
146
Grab Bucket
147
Operation of the Grab Bucket
147
Operation Precasutions of the Grapple
148
Maintenance of the Grapple
149
Drilling Device
150
Installation of Drilling Device
150
Operation of the Drilling Unit
150
Precautionsfor the Operation of Drilling Device
151
Backhoe Bucket with Scraper
151
Installation
152
Operation of the Backhoebucket
152
Maintenance of the Backhoebucket
152

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