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WA250-3
Komatsu WA250-3 Service Manual
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MAINTENANCE
3-59
5
Rear drive shaft (2 places)
24.8.4
ADJUST ENGINE VALVE LASH CLEARANCE
After the first 1000 hours only thereafter every 2000 hour intervals.
For
detail procedures to adjust valve lash clearance refer to ”EVER
Y
2000 HOURS SERVICE”
s
ee 24.9.10 “ ADJUST ENGINE VALVE LASH
CLEARANCE” on page 3-69
216
218
Table of Contents
Introduction
5
Forward
5
Safety Information
6
Intended Use
7
Features
7
Breaking in a New Machine
7
Location of Plates, Table to Enter Serial No. and Distributor
8
Machine Serial No. Plate Position
8
Table of Contents
9
General Precautions
16
Precautions During Operation
22
Before Starting Engine
22
After Starting Engine
25
Transportation
34
Battery
35
Towing
38
Precautions for Maintenance
39
Before Carrying out Maintenance
39
During Maintenance
44
Tires
49
Position for Attaching Safety Labels
51
General View
56
General View of Machine
56
General View of Controls and Gauges
57
Explanation of Components
58
Meter, Lamps
58
Meter Display Portion
59
Switches
68
Control Levers, Pedal
74
Steering Column Tilt Lever
78
Cap with Lock
78
Method of Opening and Closing Cap with Lock
78
Safety Bar
79
Towing Pin
79
Grease Pump Clamp and Rubber Ring
79
Backup Alarm
80
Fuse
81
Fuse Capacity and Name of Circuit
81
Slow Blow Fuse
82
Storage Place for this Manual
83
Auxiliary Power Source
83
For Machines Equipped with Rops Cab
83
Check before Starting Engine
84
Walk Around Check
84
Check before Starting
87
Check Coolant Level, Add Coolant
87
Check Monitor Panel
87
Check Fuel Level, Add Fuel
88
Check Oil Level in Engine Oil Pan, Add Oil
88
Check and Refill of Oil in Brake Oil Tank
89
Check Dust Indicator
89
Check Electrical Wiring
90
Drain the Water from the Fuel-Water Separator
91
Check Effect of Parking Brake
91
Check Effect of Wheel Brakes
92
Check Sound of Horn and Backup Alarm
92
Check Flashing of Lamps, Check for Dirt and Damage
92
Check Engine Exhaust Color and Sound
92
Check Operations of Gauges
92
Check Play of Steering Wheel, Check Operation of Steering
92
Check Direction of Rear View Mirror, Check for Dirt or Damage
92
Check Lock of Cab Door for Machines Equipped with Cab
92
Adjustment before Operation
93
Operator's Seat
93
Adjust Seat Belt
95
Adjust Rear Veiw Mirrors
96
Operations and Checks before Starting Engine
97
Starting Engine
98
Normal Starting Procedures in Cold and Warm Conditions
98
Starting Procedures after Extended Shutdown or Oil Change
99
Starting Procedures after Changing Fuel Filters
99
Starting Procedures after Running out of Fuel
99
Operations and Checks after Starting Engine
100
Moving Machine off
101
Changing Gear Speed
103
Changing Direction
103
Turning
104
Stopping Machine
105
Operation of Work Equipment (with Bucket)
106
Lift Arm Operation (Lever)
106
Bucket Operation (Lever)
106
Operation of Work Equipment (with Fork)
107
Lift Arm Operation (Lever)
107
Fork Operation (Lever)
107
Operation of Work Equipment (with Multi-Purpose Bucket)
108
Lift Arm Operation (Lever)
108
Bucket Operation (Lever)
108
Auxiliary Operation (Lever)
109
Position Indicator
109
Operation of Work Equipment
111
Lift Arm Operation (Lever)
111
Hydraulic Quick Coupler
112
Coupling the Attachment
112
Uncoupling the Attachment
113
Attachments Requiring Hydraulic Power
114
Work Possible Using Parallel Tool Carrier
115
Digging Operations with Rock Piles (General Purpose Bucket)
115
Digging Operations on Level Ground
116
Leveling Operation
117
Pushing Operations
117
Load and Carry Operations
117
Loading Operations
118
Multi-Purpose Bucket
119
Pallet Forks
124
Material Handling Arm
127
Precautions for Operation
128
Permissible Water Depth
128
If Wheel Brake Does Not Work
128
Precautions When Driving up or down Slopes
128
Precautions When Driving Machine
129
Adjusting Boom Kickout
130
Adjusting Bucket Positioner
131
Parking Machine
132
Checks after Completion of Engine Operation
133
Stopping Engine
133
Checks after Stopping Engine
134
Locking
134
Handling the Tires
135
Precautions When Handling the Tires
135
Tire Pressure
135
Transportation
137
Loading, Unloading Work
137
Precaution for Loading
138
Precaution for Lifting up the Vehicle
138
The Location of Decals Referring to Lifting Positions
139
Weight List
139
Lifting Procedure
140
Cold Weather Operations
141
Precautions for Low Temperature
141
Fuel and Lubricants
141
Coolant
141
Battery
142
Precautions after Completion of Work
143
After Cold Weather
143
Long Term Storage
144
Before Storage
144
During Storage
144
After Storage
144
Troubleshooting
145
When Machine Runs out of Fuel
145
Towing the Machine
146
When Engine Can be Used
148
When Engine Cannot be Used
148
If Battery Is Discharged
149
Removal and Installation of Battery
149
Precautions for Charging Battery
150
Starting Engine with Booster Cable
151
Other Trouble
153
Electrical System
153
Chassis
154
Engine
157
Guides to Maintenance
160
Outlines of Service
163
Outline of Oil, Fuel, Coolant
163
Oil
163
Fuel
163
Coolant
164
Grease
165
Storing Oil and Fuel
165
Filters
165
Outline of Electric System
166
Wear Parts List
167
Use of Fuel, Coolant and Lubricants According to Ambient Temperature
168
Engine Oil Specifications
169
Diesel Fuel Specifications
169
Coolant Specifications
171
Standard Tightening Torque for Bolts and Nuts
177
Introduction of Necessary Tools
177
Torque List
178
Periodic Replacement of Safety Critical Parts
180
Maintenance Schedule Chart
184
Service Procedures
188
Initial 250 Hours Service
188
Replace Fuel Filters
188
Replace Transmission Oil Filter Element
188
Replace Hydraulic Tank Filter Element
188
INITIAL 250 HOURS SERVICE (Only after the First 250 Hours)
188
When Required
189
Check, Clean or Replace Air Cleaner Element
189
Check Transmission Oil Level, Add Oil
191
Check Axle Oil Level , Add Oil
192
Check Axle Oil Level, Add Oil
192
Clean the Axle Case Breather
193
Clean Radiator Fins
193
Replace the Bolt-On Cutting Edges
194
Replace Bucket Teeth (if Equipped)
195
Replace Bucket Teeth
195
Check Air Conditioner (if Equipped)
196
Check Air Conditioner
196
Check the Air Conditioner Condenser (if Equipped)
197
Check Window Washing Fluid
197
Adjust Parking Brake
198
Replace Slow Blow Fuse
199
Check Air Intake Heater
199
Check before Starting
200
Every 50 Hours Service
201
Check the Tire Inflation Pressure
201
Drain Water, Sediment from Fuel Tank
201
Every 100 Hours Service
202
Check Oil Level in Hydraulic Tank, Add Oil
202
Clean Element in Air Conditioner Fresh Air Filter
203
Lubricating
204
Rear Axle Pivot Pin (2 Places)
204
Bucket Hinge Pin (2 Places)
204
Bucket Link Pin (2 Places)
204
Every 250 Hours Service
205
Change Oil in Engine Oil Pan and Replace Engine Oil Filter
205
Check for Loose Wheel Hub Nuts. Tighten
206
Check for Loose Wheel Hub Nuts, Tighten
206
Clean Element in Air Conditioner Recirculation Filter
206
Check Air Conditioner Compressor Belt Tension, Adjust
207
Check Battery Electrolyte Level
208
Check Air Intake System
208
Lubricating
209
Dump Cylinder Pin (4-Places)
209
Loader Link Pin (10 Places)
209
Lift Cylinder Pin (4 Places)
209
Lift Arm Pivot Pin (2 Places)
209
Steering Cylinder Pin (4 Places)
209
Every 500 Hours Service
210
Replace Fuel Filters
210
Replace Transmission Oil Filter Element
212
Lubricate
213
Center Drive Shaft Spline (1 Place)
213
Every 1000 Hours Service
214
Change Oil in Transmission Case, Clean Strainer
214
Clean Transmission Case Breather
215
Lubricate
216
Center Hinge Pin (2 Places)
216
Front Drive Shaft(2 Places)
216
Drive Shaft Center Support (1 Place)
216
Center Drive Shaft (2 Places)
216
Adjust Engine Valve Lash Clearance
217
Rear Drive Shaft (2 Places)
217
Adjust Engine Valve Lash Clearance (after First 1000 Hours Only Thereafter Every 2000 Hour Intervals)
217
Check Fan Belt Tension
218
Check Fan Belt Tensioner Bearing & Fan Hub Bearing & Inspect Fan Belt
218
Every 2000 Hours Service
219
Change Oil in Hydraulic Oil Tank, Replace Hydraulic Filter Element
219
Replace Hydraulic Tank Breather Element
221
Cooling System, Replace Coolant and Flush the System
222
Change Axle Oil
225
Check Brake Disc Wear
226
Check Alternator
226
Check Starter Motor
226
Check Vibration Damper
226
Adjust Engine Valve Lash Clearance
227
Specifications
229
Options, Attachments
237
Available Attachments
238
Selecting Attachments and Tires
239
Heater and Air Conditioning (if Equipped)
240
General Location and Function of Control Panel
240
Cool Box Compartment
241
Handling E.C.s.s. (Electronic Controlled Suspension System) (if Equipped)
242
Structure and Function of E.C.s.s
242
Method of Operating E.C.s.s
243
Precautions When Operating E.C.s.s
243
Precautions When Handling Accumulator
244
4
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Komatsu WA250-3 Specifications
General
Brand
Komatsu
Model
WA250-3
Category
Front End Loaders
Language
English
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