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PC12R-8
Komatsu PC12R-8 Service Manual
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76
FUSES AND RELAYS
3.4.2 RE
L
A
YS
POSITION
DESCRIPTION
1
Preheatin
g warning ligh
t timer
2
Solenoi
d excitation timer
3
Solenoi
d excitation relay
4
Safety re
lay
5
Generator wa
rning light relay
6
Current
limiter
All the r
elays
are gro
uped on a s
ingle
base pos
ition
ed insid
e the seat
suppor
t.
4
5
6
RW
A06720
3
1
2
77
79
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
Travel Reduction Gear Serial Number
9
Swing Reduction Gear Serial Number
10
Cab Serial Number
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
28
Position of the Noise Plates on Machines with Canopy
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
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
34
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
Precautions to be Taken for the Lights
37
Cleaning the Windows - Checking the Windshield Wiper Blades
37
Precautions to be Taken When Working
38
Starting the Engine
38
Check the Direction before Starting the Machine
38
Checks for Travelling in Reverse
38
Moving the Machine
39
Moving on Slopes
40
Working on Slopes
41
Unauthorized Operations
41
Preventing Electrocution
42
Visibility
43
Working on Icy or Snow-Covered Surfaces
43
Preventing Damage Caused by the Work Equipment
43
Working on Loose Ground
43
Parking the Machine
44
Transporting the Machine on Motor Vehicles
45
Loading and Unloading
45
Transport
45
Battery
46
Preventing Risks that May be Due to the Battery
46
Starting with Booster Cables
46
Precautions for the Removal
47
Precautions for Maintenance
48
Warning Plates
48
Tools
48
Personnel
48
Equipment
49
Working under the Machine
49
Cleaning the Machine
49
Use of the Engine During Maintenance Operations
50
Periodical Change of the Parts that Are Critical for Safety
50
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 for the USE of the Synthetic Biodegradable Oil Type HEES
54
The Machine and Its Operations
55
Safety Locks
56
Machine Locks
56
General Views
57
Front General View
57
General View of the Machine with Canopy
58
General View of the Driver's Seat
59
Instruments and Controls
60
Instruments
60
Warning Lights
61
Switches and Push Buttons
63
Electrical Accessories
66
Machine Controls
68
Fuses and Relays
77
Fuses
77
Relays
78
Guards and Driver's Seat
79
Engine Hood
79
Canopy
80
Cab
80
Sliding Door
81
Front Opening Windshield
82
Front Windshield (Lower Part)
83
Side Opening Window
84
Ventilation and Heating
85
Seat
85
Safety Belt
86
Emergency Exit
86
Technical Documentation Case
87
Fire Extinguisher
87
First Aid Kit
87
Use of the Machine
89
Checks before Starting the Engine
89
Visual Checks
89
Daily Checks
89
Operational Checks
90
Starting the Engine
91
Starting with Warm Engine or in Temperate Climates
91
Starting with Cold Engine or in Cold Climates
92
Warming the Engine
93
Heating the Hydraulic Oil
93
How to Move the Machine
93
Steering (Changing Direction)
95
Moving on Slopes
96
Maximum Immersion Depth
97
Parking the Machine
98
Parking on Level Ground
98
Parking on Slopes
99
Stopping the Engine
100
Transporting the Machine on Motor Vehicles
101
Loading and Unloading the Machine
101
Transport
102
Lifting the Machine
103
Precautions to be Taken in the Cold Season
104
Fuel and Lubricants
104
Coolant
104
Battery
104
Other Precautions
105
Precautions to be Taken at the End of Work
105
Precautions to be Taken in the Warm Season
106
Using the Work Equipment
107
Organizing the Work Area
107
Positioning the Machine for Digging Operations
108
Digging Method
109
Changing the Bucket
110
Using the Machine with Variable Track Gauge
111
How to Use the Variable Track Gauge
111
Adjusting the Blade
112
Long Periods of Inactivity
113
Before the Period of Inactivity
113
During the Period of Inactivity
114
After the Period of Inactivity
114
Troubleshooting
115
Occurrences that Are Not Failures
115
How to Remove the Machine
115
After the Fuel Has Run out
116
If the Battery Is down
116
Starting with Booster Cables
117
Other Troubles
118
Electrical Circuit
118
Hydraulic System
118
Engine
119
Maintenance
121
Guide to Maintenance
122
Maintenance Notes
124
Notes Regarding the Engine
124
Engine Oil
124
Coolant
124
Fuel
125
Notes Regarding the Hydraulic System
125
Notes Regarding the Electrical System
126
Notes Regarding Lubrication
126
Parts Subject to Wear that Periodically Need Changing
127
Fuel, Coolant and Lubricants
128
Homologated Hees Synthetic Biodegradable Lubricants
130
Driving Torques for Screws and Nuts
131
Standard Driving Torques
131
Specific Driving Torques
131
Lubrication
132
Lubrication Diagram Pc12R
132
Lubrication Diagram Pc12R Hs (Variable Track Gauge)
133
Lubrication Diagram Pc15R
134
Lubrication Diagram Pc15R Hs (Variable Track Gauge)
135
Periodical Change of the Components Connected with Safety
136
Critical Parts for Safety
137
Maintenance Plan
140
When Required
143
Washing the Cooling Circuit
143
Draining the Fuel Tank
144
Checking the Electrical System
144
Checking the Steel Track Tension
145
Checking the Rubber Tracks
147
Checking the Rubber Track Tension
149
Changing the Rubber Track
151
Lubricating the Articulations
153
Maintenance Intervals in Case of Use of the Demolition Hammer (Breaker)
154
Changing the Hydraulic Oil Filter
154
Changing the Hydraulic Oil
154
Checks before Starting
155
Various Checks
155
Checking the Coolant Level
155
Checking the Fuel Level
156
Checking the Engine Oil Level
156
Checking the Oil Level in the Hydraulic Circuit
157
Maintenance after the First 50 Hours of Operation
158
(Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)
158
Maintenance Every 100 Hours of Operation
159
Lubricating the Joints and the Ball-Bearing Ring
159
Lubricating the Variable Track Gauge Sliding Guides (Pc12R Hs - Pc15R Hs)
161
Cleaning the Air Cleaner Cartridge
162
Maintenance after the First 250 Hours of Operation
163
Maintenance Every 250 Hours of Operation
163
Adjusting the Fan Belt Tension
163
Checking the Battery Electrolyte Level
164
Checking the Oil Level in the Travel Reduction Gears
165
Changing the Hydraulic System Oil Filter
166
Changing the Engine Oil
167
Maintenance after the First 500 Hours of Operation
168
(Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)
168
Maintenance Every 500 Hours of Operation
168
Changing the Engine Oil Filter
168
Changing the Fuel Filter
169
Changing the Fuel Pump Precleaner
170
Changing the Air Cleaner Cartridge
171
Cleaning the Outside of the Radiators
171
DRAINING the HYDRAULIC OIL TANK (Only for Machines in Which the Synthetic Biodegradable Oil Type HEES Is Used)
172
Maintenance Every 1000 Hours of Operation
173
Changing the Oil in the Travel Reduction Gears
173
Maintenance Every 2000 Hours of Operation
174
Filter
174
Changing the Coolant
176
Checking and Adjusting the Engine Valve Clearance
176
Checking the Alternator and the Starter
176
Technical Specifications
177
Technical Data
178
Standard Overall Dimensions Pc12R
178
Technical Characteristics Pc12R
179
Standard Overall Dimensions Pc12R Hs (Variable Track Gauge)
180
Technical Characteristics Pc12R Hs (Variable Track Gauge)
181
Standard Overall Dimensions Pc15R
182
Technical Characteristics Pc15R
183
Standard Overall Dimensions Pc15R Hs (Variable Track Gauge)
184
Technical Characteristics Pc15R Hs (Variable Track Gauge)
185
Lifting Capacity with Raised Blade Pc12R
186
Lifting Capacity with Lowered Blade Pc12R
187
Lifting Capacity with Raised Blade Pc12R Hs (Variable Track Gauge Narrowed)
188
Lifting Capacity with Raised Blade Pc12R Hs
189
(Variable Track Gauge Widened)
189
Lifting Capacity with Lowered Blade Pc12R Hs
190
(Variable Track Gauge Narrowed)
190
Lifting Capacity with Lowered Blade Pc12R Hs
191
(Variable Track Gauge Widened)
191
Lifting Capacity with Raised Blade Pc15R
192
Lifting Capacity Lowered Blade Pc15R
193
Lifting Capacity with Raised Blade Pc15R Hs
194
(Variable Track Gauge Narrowed)
194
Lifting Capacity with Raised Blade Pc15R Hs
195
(Variable Track Gauge Widened)
195
Lifting Capacity with Lowered Blade Pc15R Hs
196
(Variable Track Gauge Narrowed)
196
Lifting Capacity with Lowered Blade Pc15R Hs
197
(Variable Track Gauge Widened)
197
6.1 Authorized Optional Equipment
200
Authorized Optional Equipment
200
Precautions Regarding Safety
200
Precautions Regarding the Installation of Equipment
201
Characteristics of the Optional Equipment
202
Arrangement for the Installation of the Demolition Hammer (Breaker)
203
Description and Control
203
Use of the Demolition Hammer and Rules to be Observed
203
Installing and Removing the Demolition Hammer
207
Installing the Hammer
207
Removing the Hammer
208
Maintenance
208
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Komatsu PC12R-8 Specifications
General
Brand
Komatsu
Model
PC12R-8
Category
Excavators
Language
English
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