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PC300-8
Komatsu PC300-8 Service Manual
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MAINTENANCE
MAINTENANCE PROCEDURE
EVERY 8000 HOURS MAINTENANCE
Maintenance
for
every
50,
100,
250,
500,
1000,
2000
and
4000
hours
service
should
be
carried
out
at
the
same
time.
REPLACE HIGH-PRESSURE PIPING CLAMP
Contact
your
Komatsu
distributor
to
have
the
engine
high-pressure
clamps
replaced.
REPLACE FUEL SPRAY PREVENTION CAP
Contact
your
Komatsu
distributor
to
have
the
fuel
spray
prevention
cap
replaced.
4 - 83
345
347
Table of Contents
Table of Contents
8
Before Reading this Manual
3
Foreword
3
Safety Information
4
Introduction
5
Use of Machine
5
Directions of Machine
5
Visibility from Operator's Seat
5
Product Information
6
Epa Regulations, Engine Number Plate
6
Product Identification Number (Pin)/Machine Serial No. Plate
6
Service Meter Location
7
Table of Contents
8
Safety Labels
16
Location of Safety Labels
16
Safety Labels
17
General Precautions Common to Operation and Maintenance
23
Ensuring Safe Operation
23
Inspecting Machine
23
Precautions before Starting Operation
23
Precautions Regarding Safety-Related Equipment
23
Preparations for Safe Operation
23
Understanding the Machine
23
Wear Well-Fitting Clothes and Protective Equipment
23
If any Problem Is Found
24
Keep Machine Clean
24
Precautions Inside Operator's Compartment
24
Provide Fire Extinguisher and First Aid Kit
24
Action if Fire Occurs
25
Fire Prevention
25
Precautions to Prevent Fire
25
Precautions When Getting on or off Machine
26
Use Handrails and Steps When Getting on or off Machine
26
Emergency Exit from Operator's Cab
27
No Jumping on or off Machine
27
No People on Attachments
27
Precautions When Leaving Machine
27
Precautions When Standing up from Operator's Seat
27
Do Not Get Caught in Work Equipment
28
Precautions Related to Protective Structures
28
Protection against Falling, Flying, Intruding Objects
28
Precautions Related to Attachments and Options
29
Precautions Related to Cab Glass
29
Precautions When Running Engine Inside Building
29
Unauthorized Modification
29
Precautions for Operation
30
Investigate and Confirm Jobsite Conditions
30
Precautions for Jobsite
30
Working on Loose Ground
30
Checking Signs and Signalman's Signals
31
Do Not Go Close to High-Voltage Cables
31
Ensure Good Visibility
31
Beware of Asbestos Dust
32
Starting Engine
32
Use Warning Tags
32
Inspection and Maintenance before Starting Engine
33
Precautions in Cold Areas
33
Precautions When Starting Engine
33
Checks before Operation
34
Operation
34
Starting with Booster Cables
34
Precautions When Traveling in Forward or Reverse and Swinging
35
Precautions When Traveling
36
Traveling on Slopes
37
Operating on Slopes
38
Prohibited Operations
38
Traveling on Snow-Covered or Frozen Surfaces
40
Parking Machine
41
Loading and Unloading
42
Transportation
42
Precautions When Towing
43
Towing
43
Lifting Objects with Bucket
44
Precautions for Lifting Operations
44
Precautions for Maintenance
45
Appoint Leader When Working with Others
45
Display Warning Tag During Inspection and Maintenance
45
Keep Workplace Clean and Tidy
45
Only Authorized Personnel
45
Precautions before Starting Inspection and Maintenance
45
Select Suitable Place for Inspection and Maintenance
45
Stop Engine before Carrying out Inspection and Maintenance
46
Installing, Removing, or Storing Attachments
47
Precautions When Working at High Places
47
Two Workers for Maintenance When Engine Is Running
47
Precautions When Working under Machine or Work Equipment
48
Proper Tools
48
Handling Battery
49
Precautions for Inspection and Maintenance
49
Precautions When Welding
49
Precautions When Using Hammer
50
Precautions with High-Temperature Coolant
50
Precautions with High-Temperature Oil
50
Handling High-Pressure Hoses and Piping
51
Precautions with High-Pressure Fuel
51
Precautions with High-Pressure Oil
51
Noise
52
Precautions for High Voltage
52
Precautions with High-Pressure Grease When Adjusting Track Tension
52
Do Not Disassemble Recoil Spring
53
Handling Accumulator and Gas Spring
53
Maintenance of Air Conditioner
53
Precautions with Compressed Air
53
Disposing of Waste Materials
54
Method of Selecting Window Washer Fluid
54
Periodic Replacement of Safety Critical Parts
54
Machine View Illustrations
57
Overall Machine View
57
Controls and Gauges
58
Table of Contents
59
Detailed Controls and Gauges
60
Monitoring System
60
Engine Coolant Temperature Monitor
65
ECO Gauge
73
Engine Coolant Temperature Gauge
73
Fuel Gauge
73
Hydraulic Oil Temperature Gauge
73
Service Meter, Clock
73
Working Mode Monitor
73
Travel Speed Selector Switch
86
Switches
126
Control Levers and Pedals
131
Sun Roof
134
Windshield
134
Door Lock
140
Emergency Escape Hammer
140
Cap with Lock
141
Ashtray
143
Drink Box
143
Magazine Box
143
Air Conditioner Controls
144
Radio
157
Auxiliary Electric Power
162
Fuse
163
Controller
164
Fusible Link
164
Fire Extinguisher
165
Grease Pump Holder
165
Tool Box
165
Machine Operations and Controls
166
Before Starting Engine
166
Starting Engine
186
After Starting Engine
189
Stopping the Engine
200
Machine Operation
201
Steering the Machine
205
Swinging
207
Work Equipment Controls and Operations
208
Working Mode
210
Prohibited Operations
212
General Operation Information
217
Traveling on Slopes
219
Escape from Mud
221
Recommended Applications
222
Bucket Replacement and Inversion
224
Parking Machine
228
Machine Inspection after Daily Work
229
Locking
230
Transportation
231
Transportation Procedure
231
Loading and Unloading with Trailer
232
Lifting Machine
241
Transportation Posture
243
Cold Weather Operation
245
Cold Weather Operation Information
245
After Daily Work Completion
247
After Cold Weather Season
247
Long Term Storage
248
Before Storage
248
During Storage
248
After Storage
249
Starting Machine after Long-Term Storage
249
Troubles and Actions
250
Running out of Fuel
250
Phenomena that Are Not Failures
251
Towing the Machine
252
Lightweight Towing Hole
253
Severe Job Condition
253
Discharged Battery
254
Other Trouble
258
Maintenance
265
Maintenance Information
265
Outline of Service
267
Handling Oil, Fuel, Coolant, and Performing Oil Clinic
267
Electric System Maintenance
270
Wear Parts
271
Wear Parts List
271
Recommended Fuel, Coolant, and Lubricant
272
Recommended Brands, Recommended Quality for Products Other than Komatsu Genuine Oil
274
Tightening Torque Specifications
275
Tightening Torque List
275
Safety Critical Parts
276
Safety Critical Parts List
277
Maintenance Schedule
278
Maintenance Schedule Chart
278
Maintenance Interval for Hydraulic Breaker
280
Check Engine Valve Clearance, Adjust
281
When Required
282
Maintenance Procedure
281
Initial 1000 Hours Maintenance (Only after the First 1000 Hours)
281
Check, Clean and Replace Air Cleaner Element
282
Clean Inside of Cooling System
288
Check and Tighten Track Shoe Bolts
291
Check and Adjust Track Tension
292
Replace Bucket Teeth (Vertical Pin Type)
294
Replace Bucket Teeth (Horizontal Pin Type)
297
Replace Bucked Side Cutter Shroud
298
Adjust Bucket Crearance
300
Check Window Washer Fluid Level, Add Fluid
301
Check and Maintenance Air Conditioner
302
Washing Washable Floor
303
Check Gas Spring
306
Bleeding Air from Hydraulic System
307
Check before Starting
309
Every 50 Hours Maintenance
310
Lubricating
310
Every 100 Hours Maintenance
311
Lubricating
311
Every 250 Hours Maintenance
313
Lubricate Swing Circle
313
Check Level of Battery Electrolyte
313
Check Air Conditioner Compressor Belt Tension, Adjust
315
Every 500 Hours Maintenance
316
Replace Fuel Pre-Filter Cartridge
316
Check Swing Pinion Grease Level, Add Grease
319
Check Oil Level in Swing Machinery Case, Add Oil
320
Check Oil Level in Final Drive Case, Add Oil
321
Change Oil in Engine Oil Pan, Replace Engine Oil Filter Cartridge
322
Condenser Fins
324
Clean Air Conditioner Fresh/Recirc Filters
326
Replace Breather Element in Hydraulic Tank
327
Replace Hydraulic Tank Additional Breather Element
328
Every 1000 Hours Maintenance
329
Replace Fuel Main Filter Cartridge
329
Replace Hydraulic Oil Filter Element
331
Change Oil in Swing Machinery Case
332
Check All Tightening Points of Engine Exhaust Pipe Clamps
333
Check Fan Belt and Alternator Drive Belt Tension, Replace
333
Check Nitrogen Gas Charge Pressure in Accumulator (for Breaker)
333
Every 2000 Hours Maintenance
334
Change Oil in Final Drive Case
334
Check Oil Level in Damper Case, Add Oil
333
Clean Hydraulic Tank Strainer
335
Checking Charge Pressure of Nitrogen Gas in Accumulator (for Control Circuit)
336
Check Alternator
340
Check Engine Valve Clearance, Adjust
340
Check Vibration Damper
340
Every 4000 Hours Maintenance
341
Check Water Pump
341
Replace Accumulator (for Control Circuit)
342
Check for Looseness of High-Pressure Piping Clamp, Hardening of Rubber
343
Check for Missing Fuel Spray Prevention Cap, Hardening of Rubber
343
Every 5000 Hours Maintenance
344
Change Oil in Hydraulic Tank
344
Every 8000 Hours Maintenance
346
Replace High-Pressure Piping Clamp
346
Replace Fuel Spray Prevention Cap
346
Specifications
349
Attachments and Options
353
General Precautions for Safety
353
Precautions When Removing or Installing
353
Precautions When Selecting
353
Precautions When Using
353
Read the Instruction Manual Thoroughly
353
Bucket with Hook
354
Hook Condition
354
Prohibited Operations
354
Machine Ready for Attachment
355
Locations
355
Hydraulic Circuit
359
Attachment Removal and Installation
364
Attachment Operations
368
Long Term Storage
369
Specifications
369
Attachment Guide
370
Attachment Combinations
371
Track Shoes Selection
372
Recommended Attachment Operations
373
Hydraulic Breaker
373
Handling Machines Equipped with Komtrax
377
Basic Precautions
377
Index
378
Other manuals for Komatsu PC300-8
Brochure
8 pages
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Komatsu PC300-8 Specifications
General
Brand
Komatsu
Model
PC300-8
Category
Excavators
Language
English
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