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Compact Loader
Avance WB93R-2
Komatsu Utility Avance WB93R-2 User Manual
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Operation & Maintenance
Manual
WEAM002304
BACKHOE-LOADER
WB91R
-2
WB93R
-2
SERIAL NUMBER
WB91R-2 91F20250
and up
WB93R-2 93F25184
and up
Unsafe use of this machine may cause serious injury
or death. Operators and maintenance personnel
must read this manual before operating or maintain-
ing this machine.
This manual should be kept inside the cab for refer-
ence and periodically reviewed by all personnel who
will come into contact with the machine.
WARNING
2
Table of Contents
Foreword
3
Information on Safety
4
Introduction
6
Intended Uses
6
Improper or Unauthorized Uses
6
Main Characteristics
7
Running-In
7
Product Identification
8
Machine Serial Number
8
Machine Identification Plate
8
Engine Serial Number and Exhaust Gas Emission Plate
9
Front Axle Serial Number
9
Rear Axle Serial Number
9
Transmission Serial Number
10
Cab Serial Number
10
CANOPY SERIAL NUMBER (if Provided)
10
Serial Numbers and Dealer's Address
11
Table of Contents
13
Safety and Accident Prevention
21
Safety, Noise and Vibration Plates
22
Position of the Safety Plates
22
Pictograms and Relevant Meanings
24
POSITION of the NOISE PLATES on MACHINES with CAB (Model WB91R-2)
28
POSITION of the NOISE PLATES on MACHINES with CAB (Model WB93R-2)
29
Vibrations to Which the Operator Is Subjected
30
General Precautions
31
General Safety Rules
31
Safety Devices and Guards
31
Clothing and Personal Protection Items
31
Unauthorized Modifications
32
Leaving the Operator's Seat
32
Getting on and off the Machine
33
Checking the Rear-View Mirrors
33
Preventing Fires Due to Fuel and Oil
33
Preventing Burns
34
Preventing Damage Due to Asbestos Powder
34
Preventing Damage Caused by the Work Equipment
35
Fire Extinguishers and First Aid Kit
35
Precautions Concerning the Cab Structure
35
Precautions Concerning the Equipment
35
Precautions to be Taken before Starting the Engine
36
Safety on the Work Site
36
Fire Prevention
36
Precautions to be Taken for the Operator's Cab
36
Room Ventilation
37
Cleaning Windows, Mirrors and Lights - Checking the Windshield Wiper Blades and the Bulbs
37
Precautions to be Taken When Working
38
Starting the Engine
38
Rules for Road Travel
38
Checks for Travelling in Reverse
39
Moving the Machine
39
Working on Slopes
40
Preventing Electrocution
41
Visibility
42
Working on Icy or Snow-Covered Surfaces
42
Preventing Damage Caused by the Work Equipment
42
Working on Loose Ground
42
Parking the Machine
43
Transporting the Machine on Motor Vehicles
44
Loading and Unloading
44
Transport
44
Battery
45
Preventing Risks that May be Due to the Battery
45
Starting with Booster Cables
45
Precautions for the Removal
46
Precautions for Maintenance
47
Warning Plates
47
Tools
47
Personnel
47
Equipment
48
Working under the Machine
48
Cleaning the Machine
48
Use of the Engine During Maintenance Operations
49
Periodical Change of the Parts that Are Critical for Safety
49
Stop the Engine before Carrying out any Maintenance Operation
50
Or Inspection
50
Rules to be Followed During Fuel or Oil Topping up
51
Checking the Coolant Level in the Radiator
51
Using Lamps
51
Precautions Concerning the Battery and the Alternator
52
Precautions Concerning the Starter
52
Handling High-Pressure Pipes
53
Precautions to be Taken When Handling High-Pressure Oil
53
Precautions for Maintenance Operations at High Temperatures
53
And High Pressure
53
Cooling Fan and Belt
54
Waste Materials
54
Precautions to be Taken When Inflating Tyres
54
Precautions for the Installation of the Exhaust System Tailpipe
55
Type Hees
55
Safety Locks
58
Front Loader Locks
58
Backhoe Locks
60
General Views
61
Front General View
61
Backhoe General View
62
Cab Inside General View
63
CAB INSIDE GENERAL VIEW (Standard Version)
63
CAB INSIDE GENERAL VIEW (Version with Servcontrols Available on Request)
64
Instruments and Controls
65
Front Instruments
65
Side Instruments
69
SIDE INSTRUMENTS (Standard Version)
69
SIDE INSTRUMENTS (Version with Servo Controls Available on Request)
70
Push Buttons on the Front Loader Control Lever
77
Push Button on the Gearshift Lever
77
Electrical Accessories
78
Machine Controls
79
MACHINE CONTROLS (Standard Version)
79
MACHINE CONTROLS (Version with Servo Controls Available Upon Request)
80
Fuses and Relays
108
Equipment Fuses and Relays
108
Fuses
109
Relays
110
Engine Fuses and Relays
110
Fuses
111
Relays
111
Side Dashboard Relays
112
SIDE DASHBOARD RELAYS and FUSES (Only with Servo Controls)
112
Fuses
112
Guards, Cab and Driver's Seat
113
Engine Hood
113
CANOPY (if Provided)
113
Cab
114
Ventilation and Heating
117
AIR CONDITIONER (if Installed)
118
Seat
120
Seat (Standard)
120
Seat (Optional)
121
Safety Belt
122
Fire Extinguisher
122
First Aid Kit
122
Technical Documentation
122
ADDITIONAL TOOL BOX (if Provided)
123
Use of the Machine
125
Checks before Starting the Engine
125
Visual Checks
125
Daily Checks
125
Operational Checks
126
Starting the Engine
127
Starting with Warm Engine or in Temperate Climates
127
Starting with Cold Engine or in Cold Climates
128
Warming the Engine
129
Heating the Hydraulic Oil
129
How to Move the Machine
130
Differential Locking
131
Engaging the Four-Wheel Drive
131
Working on Slopes
132
Maximum Immersion Depth
133
Parking the Machine
134
Parking on Level Ground
134
Parking on Slopes
135
Stopping the Engine
136
Transporting the Machine on Motor Vehicles
137
Loading and Unloading the Machine
137
Transport
138
Precautions to be Taken in the Cold Season
139
Fuel and Lubricants
139
Coolant
139
Battery
139
Other Precautions
140
Precautions to be Taken at the End of Work
140
Precautions to be Taken in the Warm Season
141
Using the Machine as a Loader
142
Bucket Position Indicator
142
Organizing the Work Area
142
Loading Heaped and Level Material
143
Loading Operations on Slopes
144
Changing the Standard Front Bucket
144
Using the Machine as an Excavator
145
Positioning the Bucket According to the Work
145
That Must be Carried out
145
Positioning the Machine for Digging Operations
146
Sliding the Backhoe Unit Sidewards
147
Digging Method
148
Changing the Backhoe Bucket
149
Long Periods of Inactivity
150
Before the Period of Inactivity
150
During the Period of Inactivity
152
After the Period of Inactivity
152
Troubleshooting
153
How to Remove the Machine
153
After the Fuel Has Run out
153
If the Battery Is down
154
Starting with Booster Cables
155
Other Troubles
156
Electrical Circuit
156
Hydraulic System
156
Braking System
157
Converter
157
Engine
158
Maintenance
159
Guide to Maintenance
160
Maintenance Notes
162
Notes Regarding the Engine
162
Engine Oil
162
Coolant
162
Fuel
163
Notes Regarding the Hydraulic System
163
Notes Regarding the Electrical System
164
Notes Regarding Lubrication
164
Parts Subject to Wear that Periodically Need Changing
165
Fuel, Coolant and Lubricants
166
Homologated Hees Synthetic Biodegradable Lubricants
168
Driving Torques for Screws and Nuts
169
Standard Driving Torques
169
Specific Tightening Torques
169
Lubrication
170
Lubrication Diagram
170
LUBRICATION DIAGRAM (4In1 Bucket and Pallet Forks)
171
LUBRICATION DIAGRAM (Front Bucket Rapid Couplings)
172
LUBRICATION DIAGRAM (Telescopic Arm)
173
LUBRICATION DIAGRAM (Offset Device)
174
Periodical Change of the Components Connected with Safety
175
Critical Parts for Safety
176
Maintenance Plan
180
When Required
184
Checking, Cleaning or Changing the Air Cleaner Cartridge
184
Checking and Cleaning the Cab Air Filter
185
CHECKING and CLEANING the RECIRCULATING AIR FILTER (Only for Machines with Air Conditioner)
186
Bleeding the Braking Circuit
187
Cleaning the Water Separator
188
Checking and Adjusting the Front Wheel Toe-In
188
Checking and Adjusting the Parking Brake
189
Checking the Braking Efficiency
190
Checking and Adjusting the Brake Pedal Stroke
191
ADJUSTING the AUTOMATIC RETURN-TO-DIG DEVICE of the FRONT BUCKET (if Installed)
191
Checking and Adjusting the Stabilizer Slack
192
Maintenance Intervals in Case of Use of the Demolition Hammer
193
Changing the Hydraulic Oil Filter
193
Changing the Hydraulic Oil
193
Checks before Starting
194
Various Checks
194
Checking the Coolant Level
194
Checking the Fuel Level
195
Checking the Engine Oil Level
195
Checking the Hydraulic Circuit Oil Level
196
Draining the Water Separator
197
Maintenance Every 10 Hours of Operation
198
Lubricating the Joints
198
MAINTENANCE after the FIRST 50 HOURS of OPERATION (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)
200
Maintenance Every 50 Hours of Operation
200
Checking the Radiator Fluid Level
200
Checking the Braking System Oil Level
200
Lubricating the Propeller Shafts
201
Lubricating the Front Axle Joints Central Coupling
202
Checking the Tyre Pressure
202
Checking the Electrical System
203
Maintenance after the First 250 Hours of Operation
204
Maintenance Every 250 Hours of Operation
204
Adjusting the Fan Belt Tension
204
(Only for Machines with Air Conditioner)
205
Checking the Battery Electrolyte Level
206
Checking the Front Axle Oil Levels
207
Checking the Rear Axle Oil Levels
207
Checking the Hydraulic Transmission Oil Level
208
Checking the Wheel Nut Driving Torque
208
MAINTENANCE after the FIRST 500 HOURS of OPERATION (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)
209
Maintenance Every 500 Hours of Operation
209
Changing the Engine Oil
209
Changing the Engine Oil Filter
210
Changing the Hydraulic System Oil Filter
211
Changing the Fuel Filter
212
Draining the Fuel Tank
213
Draining the Hydraulic Oil Tank
214
Cleaning the Outside of the Radiators
215
CLEANING the OUTSIDE of the A/CCONDENSER (Only for Machines with Air Conditioner)
216
Maintenance Every 1000 Hours of Operation
217
Changing the Front Axle Oil
217
Changing the Rear Axle Oil
218
Changing the Hydraulic Transmission Oil
219
Changing the Hydraulic Transmission Filter
220
Checking and Adjusting the Engine Valve Clearance
220
Maintenance Every 2000 Hours of Operation
221
Filter
221
Changing the Coolant
224
Changing the Braking System Oil
226
Checking the Alternator and the Starter
227
CHECKING the QUANTITY of COOLANT in the A/C SYSTEM (Only for Machines with Air Conditioner)
227
Maintenance Every 4000 Hours of Operation
228
CHANGING the A/C DEHYDRATING FILTER (Only for Machines with Air Conditioner)
228
CHECKING the OPERATING CONDITIONS of the A/C COMPRESSOR (Only for Machines with Air Conditioner)
228
Technical Specifications
229
Technical Data
230
Standard Overall Dimensions
230
Standard Overall Dimensions with Centered Backhoe
230
Standard Overall Dimensions with Folded Backhoe
230
Technical Characteristics
231
Technical Characteristics Wb91R-2
231
Technical Characteristics Wb93R-2
232
Lifting Capacities
233
Symbol Table
233
Lifting Capacity Wb91R-2 (Standard Boom)
234
Lifting Capacity Wb91R-2 (Offset Boom)
235
Lifting Capacity Wb93R-2 (Standard Boom)
236
Lifting Capacity Wb93R-2 (Offset Boom)
237
6.1 Authorized Optional Equipment
240
Authorized Optional Equipment
240
Precautions Regarding Safety
240
Characteristics of the Optional Equipment
241
Characteristics of the Optional Equipment for Model Wb91R-2
241
Characteristics of the Optional Equipment for Model Wb93R-2
242
Front Equipment Quick Coupling Devices
243
Manual Control Quick Coupling
243
Hydraulic Control Quick Coupling for Standard Bucket
244
Hydraulic Control Quick Coupling for 4In1 Bucket and Optional Equipment with Unidirectional Oil Flow
244
4In1 BUCKET
245
Description and Controls
245
Safety Devices
245
INSTALLING the 4In1 BUCKET
246
USING the 4In1 BUCKET
247
Maintenance
247
Pallet Forks
248
Description
248
Safety Devices
248
Using the Forks
249
Preparing the Pallet Forks for Use
249
Overturning the Forks for Travel on Roads
250
Removing the Forks
251
Installing the Forks
251
Maintenance
251
Backhoe Telescopic Arm
252
Description and Control
252
Version with Standard Controls
252
VERSION with SERVO CONTROLS (if Installed)
252
Safety Devices
253
Using the Telescopic Arm
253
Maintenance
254
Adjusting the Guide Slack
254
Arrangement for the Installation of the Demolition Hammer
256
Description and Control
256
Version with Standard Controls
256
VERSION with SERVO CONTROLS (if Installed)
256
Use of the Demolition Hammer and Rules to be Observed
257
Installing and Removing the Demolition Hammer
261
Installing the Hammer
261
Removing the Hammer
263
Using the Hammer
263
Maintenance
263
Application of the Offset Device
264
Description and Control
264
Version with Standard Controls
264
VERSION with SERVO CONTROLS (if Installed)
265
Maintenance
265
Arrangement for the Operation of Optional Equipment with Unidirectional Oil Flow
266
Description and Control
266
Version with Standard Controls
266
VERSION with SERVO CONTROLS (if Installed)
266
Installing and Connecting the Equipment
267
Maintenance
267
Arrangement for the Installation of the Clamshell Bucket
268
Description and Control
268
Version with Standard Controls
268
VERSION with SERVO CONTROLS (if Installed)
269
Installing the Clamshell Bucket
270
Using the Clamshell Bucket
271
Maintenance
271
Arrangement for the Installation of the Manual Hydraulic Hammer
272
Description and Control
272
Connecting and Removing the Hammer
273
Connecting the Hammer
273
Removing the Connections
273
Using the Hammer
274
Maintenance
274
LOAD STABILIZER SYSTEM (LSS) (Optional)
275
Accumulator of the Load Stabilizer System (Lss)
275
Rear Equipment Rapid Coupling Device
276
Equipment Coupling and Release Procedure
277
Maintenance
279
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Komatsu Utility Avance WB93R-2 Specifications
General
Brand
Komatsu Utility
Model
Avance WB93R-2
Category
Compact Loader
Language
English
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