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Compact Loader
WB140-2N
Komatsu WB140-2N User Manual
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MAINTENANCE
WB140-
2N, W
B150-2N
3-
7
FUEL, COOLANT
, AND LUB
RICANTS
PROPER SELECTION A
CCORDING TO THE AMBIENT T
EMPERA
TURE
Reservo
ir
Kind of
fluid
Ambient T
emperature
Capacity
-22
-30
-4
-20
14
-10
32
0
50
10
68
20
86
30
104
40
122°F
50° C
Specified
Refill
Engine o
il
pan
Oil
API CD
SAE 5W
-30
7.9 li
ter
(2 US gal)
Aspira
ted
engin
e
7.9 l
iter
(2 US gal)
Aspi
rat
ed
engine
SAE 10W
SAE 20W-2
0
SAE 30
SAE 40
SAE 10W-3
0
SAE 15W-4
0
Hydraulic
system
SAE 5W
*
150 liter
(39.
6 US gal)
92 liter
(24.
3 US ga
l)
SAE 10W
SAE 30
SAE 10W-3
0
Hydraulic
system with
biodeg
rad-
able o
il
150 liter
(39.
6 US gal)
92 liter
(24.
3 US ga
l)
See page 3-12
Fro
nt ax
le
:
Diff
erential
6.5 li
ter
(1.7 US gal)
6.5 l
iter
(1.7 US
gal)
Fin
al
reductio
n
gear (e
a.)
(See Note 1)
1 liter
(0.2
6 US
gal)
1 liter
(0.26 U
S gal)
Rear axle:
Diff
erential
14.5 lite
r
(3.8 US gal)
14.5 liter
(3.8 US
gal)
Fin
al
reductio
n
gear (e
a.)
1.5 li
ter
(0.4 US gal)
1.5 l
iter
(0.4 US
gal)
Hydraulic
transmi
ssion
GM
DEXRO
N II D
20 liter
(5.3 US gal)
17 liter
(4.5 US
gal)
Brake sys-
tem
0.8 li
ter
(0.2 US gal)
0.8 l
iter
(0.2 US
gal)
124
126
Table of Contents
Introduction
6
Foreword
6
Safety Information
7
Approved and Non-Approved Uses
8
Non-Approved
8
Product Information
9
Main Features
9
Break-In Period
9
Synthetic Biodegradable Oil Types
9
Product Identification
10
Machine Serial Number
10
Machine Identification Plate
10
Engine Serial Number and Emission Label
11
Front Axle Serial Number
11
Rear Axle Serial Number
11
Transmission Serial Number
12
Cab Serial Number
12
Canopy Serial Number
12
Serial Numbers and Dealer Information
13
Model: Wb140-2N / Wb150-2N
13
Table of Contents
14
Safety
24
General Safety Rules and Precautions
24
General Safety Rules
24
Safety Features
25
Personal Protective Equipment
25
Unauthorized Modifications
25
Leaving Operator's Compartment
26
Mounting and Dismounting
27
Fire Prevention for Fuel and Oil
27
Dust Hazard Precautions
28
Crush or Pinch Point Dangers
28
Fire Extinguisher and First Aid Kit
28
Inside Operator's Compartment
29
Precautions When Using Rops
29
Precautions for Attachments
29
Precautions before Starting Work Operations
30
Pre-Operational Checks
30
Perform a Walk Around Check of Your Machine
30
Under the Hood
30
In the Operator's Cab
31
Start-Up Checks
31
Starting Your Work Operations
31
Work Site Hazards
32
Working Clearances
32
Rules for Road Travel
33
Rules for Traveling in Reverse
34
Traveling on Icy or Snow-Covered Surfaces
34
Working on Loose or Unstable Ground
34
Precautions During Maintenance Operations
35
Warning Tags
35
Equipment Storage
35
Working under the Machine
36
Using Drop Lamps
36
Keeping the Machine Clean
36
Running the Machine During Maintenance
37
Rules for Refueling the Machine
37
Cooling System Precautions
37
Battery Precautions
38
Starting the Machine
38
High Pressure Hoses
39
High Temperatures Areas
39
Rotating Parts
39
Disposal of Waste Materials
40
Inflating Tires
40
Critical Parts
40
Vibrations to Which the Operator Is Exposed
40
Safety and Warning Decals
41
Location of the Safety Decals
41
Location of the Pictogram Decals
55
General View of Machine
58
Front View of Machine
58
Rear View of Machine
59
Pictograms
60
Work Area Dangers
60
Moving or Rotating Engine Components
60
Filling the Hydraulic System
60
Engine Oil Filter
60
Brake Fluid
60
Fuel Filter
61
Engine Coolant
61
Air Filter
61
Engine Coolant Pressure Warning
61
Hydraulic Oil Level
61
Hydraulic Oil Filter
61
Transmission Oil Level
62
Transmission Fluid Filter
62
Anchorage Point
62
Emergency Exit
62
Boom Lock
62
Swing Lock
62
Description of Machine Operation Controls
63
Inside the Cab
63
Front Instrument Bezel and Controls
64
Transmission Oil Temperature Alert
64
Engine Coolant Temperature Alert
64
Four-Wheel Drive (In/Out) Indicator
64
Low Fuel Alert
64
Directional Signal Indicator
65
High Beam Indicator
65
Parking Brake and Brake Fluid Alert
65
Differential (Lock/Unlock) Indicator
65
Multifunctional Directional Switch
65
Four-Wheel Drive Switch
66
Windshield Wiper/Washer Switch
66
Front Work Lamps Switch
66
Emergency (Hazard) Switch
66
Optional Equipment Switch
66
Side Instrument Bezel and Controls
67
Fuel Level Gauge
67
Tachometer and Hour Meter
67
Engine Coolant Temperature Gauge
68
Air Cleaner Restriction Alert
68
Engine Oil Pressure Alert
68
Glow Plugs Preheat Indication
68
Alternator Alert
68
Engine Coolant Temperature Alert
69
Optional Equipment Alert
69
Audible Warning System
69
Rear Work Lamps
69
Windshield Wiper/Washer Switch
69
Emergency Flashing Light Switch
69
Rear Horn
70
Load Stabilizer Switch (Optional)
70
Air Conditioning Switch (Optional)
70
Ignition Switch
70
Blower Switch
70
Backhoe Power Control Switch
71
Backhoe Boom Lock Switch
71
Optional Switch Locations
71
Front End Loader Controls
72
Loader Declutch Control Button
72
Differential Lock Button
72
Bucket Open Button
73
Bucket Close Button
73
Front End Loader Speed Control Button
73
Gear Shift Lever Controls
74
Declutch Button
74
Changing Speed Ranges
74
Directional Control Lever
74
Brakes, Parking Brake, Accelerator and Throttle Control
75
Brake Pedals
75
Parking Brake
75
Accelerator Pedal
76
Hand Throttle
76
Cab Environment and Safety Equipment
77
Heating and Ventilation System
77
Air Conditioning
77
Heating System
77
Seat and Seat Belt
78
Seat
78
Seat Belt
78
Safety Equipment and Storage Areas
79
Fire Extinguisher
79
First Aid Kit
79
Document Storage
79
Tool Case
79
Cab and Guards
80
Cab
80
Doors and Windows
80
Engine Hood
81
Electrical
82
Switches and Extra Accessories
82
Overhead Lamp
82
Battery Disconnect
82
Optional Electrical Switch Location
82
Fuses and Relays
83
Fuse and Relay Panel Location
83
Dashboard Relay Location
83
Fuse and Relay Panel Lay out
84
Engine Fuse and Relay Location
85
Operating the Machine
87
Checking the Fuel Supply
87
Starting the Engine
87
Starting the Engine in Cold Weather
88
Warming the Machine up
89
Shutting the Engine down
89
Operating the Front End Loader and Backhoe
90
Operating the Front End Loader
90
Control Lever Positions
90
Performing Loading Operations
91
Bucket Position Indicator
91
Organizing Your Work Area
91
Loading Heaped Material
92
Loading a Truck Bed or Trailer
92
Working on Slopes with a Loaded Bucket
93
Changing the Front Bucket
93
Operating the Backhoe
94
Positioning the Machine
94
Adjusting the Digging Bucket
95
Digging Methods
96
Changing the Backhoe Bucket
97
Iso Backhoe Controls
98
Komatsu Backhoe Controls
99
Safety Lock Usage
100
Backhoe Locks
102
Moving or Traveling with the Machine
103
Traveling
103
Traveling on Slopes
104
Traveling or Working in Swampy or Wet Areas
105
Parking the Machine
106
For Short or Long Periods of Time
106
Parking on an Incline
107
Transporting the Machine
108
Loading and Securing the Machine
108
Emergency Recovery
109
How to Move the Machine
109
Precautions During Seasonal Changes
110
Cold Seasons
110
Fuel and Lubricants
110
Coolant
110
Battery
110
Warm Seasons
111
Basic Troubleshooting
112
The Battery
112
Servicing the Battery
112
Removal and Installation
112
Starting the Engine with Booster Cable
113
Electrical Circuits
115
Hydraulic System
115
Braking System
116
Torque Converter System
116
Engine
117
Guide to Maintenance
120
Maintenance Notes
121
Notes Regarding the Engine
121
Engine Oil
121
Coolant
122
Fuel
122
Notes Regarding the Hydraulic System
122
Notes Regarding the Electrical System
123
Notes Regarding Lubrication
123
Parts Subject to Wear that Periodically Need Changing
124
Fuel, Coolant, and Lubricants
125
Proper Selection According to the Ambient Temperature
125
Grease
126
Lubrication Diagrams
130
General
130
Multipurpose Bucket and Pallet Forks
131
Front Bucket Quick Couplings
132
Telescopic Arm
133
Periodic Replacement of Components Connected with Safety
134
Critical Parts for Safety
135
Fuel Supply System
135
Delivery / Return Hydraulic System
136
Loader and Backhoe Hydraulic System
137
Operator's Safety
138
Standard Tightening Torque
139
Standard Tightening Torque for Bolts and Nuts
139
Specific Tightening Torques
139
Maintenance Plan
140
Checks before Starting
144
Various Checks
144
Checking Fuel Level
144
Checking Coolant Level
145
Checking Engine Oil Level
145
Checking Hydraulic System Oil Level
146
Draining Water Separator
147
Maintenance Every 10 Hours of Operation
147
Lubricating Joints (Grease Fittings)
147
Joint Lubrication Points
148
Front Loader Lubrication Locations
148
Backhoe Lubrication Locations
149
Maintenance after First 50 Hours of Operation
150
Maintenance Every 50 Hours of Operation
150
Checking Radiator Fluid Level
150
Checking Brake System Oil Level
150
Lubricating Propeller Shafts
151
Lubricating Front Axle Joints Central Coupling
152
Checking Tire Pressure
152
Checking Electrical System
153
Maintenance after the First 250 Hours of Operation
153
Maintenance Every 250 Hours of Operation
154
Adjusting Fan Belt Tension
154
Cleaning Outside of Radiator
155
Checking Battery Electrolyte Level
155
Checking Front Axle Oil Levels
156
Checking Rear Axle Oil Levels
156
Checking Hydraulic Transmission Oil Level
157
Checking Wheel Lug Nut Torque
157
Maintenance after First 500 Hours of Operation
158
Maintenance Every 500 Hours of Operation
159
Changing Engine Oil
159
Changing Engine Oil Filter
160
Changing Hydraulic System Oil Filter
161
Changing Fuel Filter
162
Fuel Filter
162
Bleeding the Circuit
162
Draining Fuel Tank
163
Draining Hydraulic Oil Tank
164
Maintenance Every 1000 Hours
165
Changing Front Axle Oil
165
Differential
165
Planetary
165
Changing the Rear Axle Oil
166
Differential
166
Planetary
166
Changing Hydraulic Transmission Oil
167
Changing Hydraulic Transmission Filter
168
Checking and Adjusting Engine Valve Clearance
168
Maintenance Every 2000 Hours of Operation
169
Changing Hydraulic System Oil and Cleaning Suction Filter
169
Changing Coolant
171
Changing the Braking System Oil
173
Checking Alternator and Starter
173
When Required
174
Checking, Cleaning, or Changing Air Cleaner Cartridge
174
Checking and Cleaning Cab Air Filters
175
Bleeding Brake System
176
Flushing Cooling System
177
Cleaning the Water Separator
179
Checking and Adjusting Front Wheel Toe-In
179
Checking and Adjusting Parking Brake
180
Check
180
Adjustment
180
Checking the Braking Efficiency
181
Checking and Adjusting Brake Pedal Stroke
182
Adjusting Automatic Return of Front Bucket to the Digging Position
182
Maintenance Intervals in Case of Demolition Hammer Use
183
Changing Hydraulic Oil Filter
183
Changing Hydraulic Oil
183
Long Term Storage
184
Before Storage
184
During Storage
185
After Storage
185
Specifications
188
Technical Data
188
Standard Overall Dimensions
188
Technical Characteristics Wb140-2N (Aspirated Engine)
189
Total Mass
189
Standard Bucket Capacity
189
Aspirated Engine
189
Electrical System
189
Travel Speeds
189
Tires
189
Technical Characteristics Wb140-2N (Turbocharged Engine)
190
Total Mass
190
Standard Bucket Capacity
190
Aspirated Engine
190
Electrical System
190
Travel Speeds
190
Tires
190
Technical Characteristics Wb150-2N
191
Total Mass
191
Standard Bucket Capacity
191
Aspirated Engine
191
Electrical System
191
Travel Speeds
191
Tires
191
Lifting Capacities
192
Symbols
192
Lifting Capacity Wb140-2N
193
Lifting Capacity Wb150-2N
195
Optional Attachments
198
Authorized Optional Equipment
198
Basic Precautions
198
Optional Equipment Measurements for (Wb140-2N)
199
Front End Loader
199
Backhoe Unit
199
Optional Equipment Measurements for (Wb150-2N)
200
Front End Loader
200
Backhoe Unit
200
Front Equipment Quick Coupling Devices
201
Manual Control Quick Coupling
201
Multipurpose Bucket
202
Bucket Operation
203
Description
203
Bucket Uses
203
Pallet Forks Kit
204
Removing and Installing the Forks
204
Backhoe Telescopic Arm
206
Description and Control
206
Safety Locks
206
Maintenance
207
Demolition Hammer
209
Description and Control
209
Rules for Hammer Usage
210
Always Avoid the Following Uses
211
Installation and Removal of the Demolition Hammer
213
Clamshell Bucket
214
Description and Control
214
Installation and Removal of the Clamshell Bucket
215
Operating the Clamshell Bucket
215
Hydraulic Jack Hammer
216
Description and Control
216
Connecting and Removing the Jack Hammer
217
Using the Jack Hammer
217
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Komatsu WB140-2N Specifications
General
Brand
Komatsu
Model
WB140-2N
Category
Compact Loader
Language
English
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