1) The document is a product bulletin that introduces the new PC1250LC-8/PC1250-8 hydraulic excavators from Komatsu, highlighting improved environmental features, work performance, productivity, reliability, maintenance, safety, and other specifications. 2) Key improvements include a new engine that meets Tier 3 emission regulations, a fuel-efficient design with variable speed fan and economy modes, reduced ambient noise, increased lifting capacity, and improved maintenance features. 3) The excavators also have enhancements such as slip-resistant plates, easier cooling unit cleaning, expanded safety features, and various modes that increase productivity while reducing fuel consumption.

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PRODUCT BULLETIN
PC1250LC-8/PC1250-8
Hydraulic Excavators
INTERNAL USE ONLY
MENU
NEXT
AEPB422-00
Introducing the
PC1250LC-8/PC1250-8
Hydraulic Excavators
Photo may include optional equipment.

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GALEO
Genuine Answers for Land & Environment Optimization

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Komatsu develops and manufactures both construction equipment and
engines in house: equipment since 1931 and diesel engines since 1935.
Supported by such experience, ecot3 technology was developed aiming
for preservation of the Earth's environment (Ecology) and the customer's
productivity (Economy). What makes Komatsu successful is our strong
technological capabilities and powerful performance integrated into
efficient cost-effective machinery.
ecot3

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TABLE OF CONTENTS [No.1]
DESIGN CONCEPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07
MAIN SALES FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09
ENVIRONMENT FRIENDLY FEATURES . . . . . . . . . . . . . . . . . . . . . 09
• Komatsu SAA6D170E-5 engine -- EPA and EU emission regulations
certified (New) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09
• Fuel efficient design (New) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
• Four-level selectable Economy mode (New) . . . . . . . . . . . . . . . . . . 15
• Reduced ambient noise (New) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
OUTSTANDING WORK PERFORMANCE AND PRODUCTIVITY . . . 19
• Two selectable modes to meet work conditions . . . . . . . . . . . . . . . . 19
• Heavy lift mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
• Two mode setting for boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
• Swing priority mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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TABLE OF CONTENTS [No.2]
RELIABILITY AND DURABILITY FEATURES . . . . . . . . . . . . . . . . 24
• Guards and protectors to prevent undercarriage damage . . . . . . . 24
• Clean and reliable hydraulic circuit . . . . . . . . . . . . . . . . . . . . . . . 26
• Fuel pre-filters with water separators (New) . . . . . . . . . . . . . . . . . 27
• Highly reliable electric circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
COMFORTABLE OPERATOR'S ENVIRONMENT . . . . . . . . . . . . . 30
• Large cab -- meets ISO standard . . . . . . . . . . . . . . . . . . . . . . . . .30
• Adjustable suspension-type operator seat . . . . . . . . . . . . . . . . . . 31
• See-through skylight for better upward visibility . . . . . . . . . . . . . . 32
• Cab damper mounting to lower noise and vibration . . . . . . . . . . . 33
• Large-capacity automatic air conditioner . . . . . . . . . . . . . . . . . . . 34
• Low noise cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
• Shockless boom control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
• Washable floor mat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
• Multi-function color monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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TABLE OF CONTENTS [No.3]
EASY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
• Easy to clean radiator with reversible hydraulic fan (New) . . . . . . . 40
• Single-level maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
• Air-operated greasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
• Electric priming pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
• Extended hydraulic oil filter replacement . . . . . . . . . . . . . . . . . . . 44
• EMMS (Equipment Management Monitoring System) . . . . . . . . . . 45
• VHMS (Vehicle Health Monitoring System) . . . . . . . . . . . . . . . . . 47
SAFETY FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
• Wide catwalk, large steps and handrails . . . . . . . . . . . . . . . . . . . 48
• Operator Safety Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
• Neutral start with PPC lock solenoid valve . . . . . . . . . . . . . . . . . . 51
• Step light with timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
• Warning light interconnected with horn . . . . . . . . . . . . . . . . . . . . 53
• Slip resistant plates (New) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
• Global safety design -- meets USA, EU and Japan standards . . . . 55
ATTACHMENTS & OPTIONAL EQUIPMENT . . . . . . . . . . 56
INTERCHANGEABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
TRANSPORTATION GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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Improved Environmental Features
1. Tier 3 emission regulations certified (EPA and EU)
• Electronic-controlled EGR system
• 40% reduction in NOX emissions
2. Fuel efficient design
3. Economy-mode four-level setting
4. Reduction of ambient noise
• Electronic-controlled
variable-speed fan
• Large-size hybrid fan
• Low-noise muffler
and muffler sound
insulation cover
Reduction of Operating Cost
1. Fuel pre-filters as standard equipment
2. EMMS/VHMS monitoring systems
3. Easy centralized access for PM and repair.
DESIGN CONCEPT [No.1]

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DESIGN CONCEPT [No.2]
Improved Safety and Maintainability
1. Slip-resistant plates installed
2. Easy cleaning of the cooling unit with fan reverse rotation
3. Wide catwalk, large steps and handrails
4. High-strength pressed steel cab

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Komatsu SAA6D170E-5 engine -- EPA and EU emission
regulations certified (New)
• EPA and EU Tier 3 emission regulations certified
• The world's first electronic-controlled cooled EGR system
(bypass-assist-type with venturi)
ENVIRONMENT FRIENDLY FEATURES [No.1]
Two fuel pre-filters are
newly added, including
water separators
Corrosion resister
Main fuel filter
Engine controller
Large oil pan
Number of oil filters is increased
from 2 to 3

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Komatsu SAA6D170E-5 engine -- EPA and EU emission
regulations certified (New)
ENVIRONMENT FRIENDLY FEATURES [No.2]
Adoption of polyethylene
V belt for alternator and
air conditioning compressor
(Single belt)
Air conditioning compressor
Adoption of auto-tensioner
for belt tension adjustment
EGR piping
Alternator

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Komatsu SAA6D170E-5 engine -- EPA and EU emission
regulations certified (New)
ENVIRONMENT FRIENDLY FEATURES [No.3]
• Komatsu's Cooled EGR System
High-capacity and heavy-duty twin-valve cooled EGR, has high durability
and high reliability
Air cleaner Muffler
Turbocharger
Aftercooler
Venturi
Intake manifold
Engine
Exhaust manifold
EGR
valve
EGR cooler
Bypass valve

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Comparison of engine model and emission regulation
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Engine model –
KOMATSU
SAA6D170E-5
KOMATSU
SAA6D170E-3
CUMMINS
QSK23
Net
kW/rpm
{HP/rpm}
502/1800
{672/1800}
485/1800
{651/1800}
–
Gross
kW/rpm
{HP/rpm}
514/1800
{688/1800}
–
567/1650*
{760/1650}
– Tier 3 Tier 2 Tier 1
* New Hitachi EX1200-5D has been introduced into the market with a significant increase in gross horsepower. The hydraulic absorption
horsepower, however, is not improved since the machine is equipped with same hydraulic components as those for former model
EX1200-5C. Therefore, the machine performances of EX1200-5D may not be improved while the fuel consumption is increased when compared
with the former model.
Horsepower
Emission regulation certification
Komatsu SAA6D170E-5 engine -- EPA and EU emission
regulations certified (New)
ENVIRONMENT FRIENDLY FEATURES [No.4]

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ecology & economy
technology 3
Air-to-air aftercooler contributes
to low fuel consumption and NOX
reduction.
Cooling the high-density intake air
lowers the combustion temperature
and reduces NOX.
ENVIRONMENT FRIENDLY FEATURES [No.5]
Fuel efficient design (New)
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Aftercooler Air-to-air cooled Air-to-air cooled Air-to-air cooled

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ENVIRONMENT FRIENDLY FEATURES [No.6]
Fuel efficient design (New)
Electronic-controlled, hydraulic drive,
variable-speed reversible fan
• Efficient use of engine power, elimination
of parasitic fuel consumption
• Easy cleaning of the cooling unit with fan
reversing function
• Low noise at normal temperatures
(reduction: approx. 2dB)
Hybrid fan
Hydraulic motor for fan drive
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Electronic-controlled,
hydraulic drive,
variable-speed fan
Engine direct drive fan Engine direct drive fan
Fan type

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Four-level selectable Economy mode (New)
If the setting is changed from E0 to E1, E2 and E3, production decreases
but fuel consumption also decreases, resulting in higher fuel efficiency.
ENVIRONMENT FRIENDLY FEATURES [No.7]

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Four-level selectable Economy mode (New)
ENVIRONMENT FRIENDLY FEATURES [No.8]
Operation mode can be selected depending on customer’s
required hourly production to save fuel consumption.
0 2 4 6 8 10 12
P
E0
E1
E2
E3
Mode
Dump cycle(per hour)
100
88
78
73
66
More efficient
Rock loading
Fuel consumption
(Ratio: Power mode=100)
Loading of midsized rocks
into 60 ton trucks.

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Four-level selectable Economy mode (New)
ENVIRONMENT FRIENDLY FEATURES [No.9]
Mode
Fuel
consumption
Productivity
Fuel
consumption
efficiency
P
E0
E1
E2
E3
gal/hr ton/hr ton/gal
GOOD
HIGH
GOOD
4-mode settings for less fuel consumption depending on customer's
operating condition

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Reduced ambient noise (New)
EU stage 2 noise regulation has been met with the standard
specification.
• Electronic-controlled variable-speed fan
• Large-size hybrid fan
• Low-noise muffler with glass-wool inner liner
ENVIRONMENT FRIENDLY FEATURES [No.10]
Low-noise muffler
Hybrid fan
Hydraulic motor
for fan
Model Komatsu Komatsu
Item PC1250-8 PC1250-7
dB(A) 108.4/109.8* 110.4**
* 70% fan speed / Fan max speed ** EU spec
Ambient noise (dynamic sound)

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OUTSTANDING WORK PERFORMANCE AND
PRODUCTIVITY [No.1]
Two selectable modes to meet work conditions
Power mode
Economy mode
Heavy lift mode
Working
Mode
Application
P
Power
mode


Maximum production/power
Fast cycle times
E
(E0, E1, E2, E3)
Economy
mode


Good cycle times
Good fuel economy
Advantage
Swing priority mode

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The lifting force increases by approx. 10%
when Heavy Lift mode is selected
OUTSTANDING WORK PERFORMANCE AND
PRODUCTIVITY [No.2]
Heavy lift mode
Heavy lift mode
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
– Equipped Equipped Not equipped
MPa
(kgf/cm2
)
(PSI)
31.4 to 34.3
(320 to 350)
(4550 to 4980)
31.4 to 34.3
(320 to 350)
(4550 to 4980)
31.4 to 34.3
(320 to 350)
(4550 to 4980)
Increase in lift force % 10 10 10
Heavy lift mode
Hydraulic pressure setting

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Smooth mode
Smooth gathering or scraping-down
work with arm is possible. Boom will raise if
a hard obstruction is encountered.
OUTSTANDING WORK PERFORMANCE AND
PRODUCTIVITY [No.3]
Two mode setting for boom
Two boom setting switch

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Power mode
Boom down force is increased, ditch digging and mass excavation
operation in hard ground are improved.
OUTSTANDING WORK PERFORMANCE AND
PRODUCTIVITY [No.4]
Two mode setting for boom
Two boom setting switch
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
 Equipped Equipped Equipped
Two-mode setting for boom

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Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped Not equipped
Swing priority
The hydraulic flow distribution to the boom hoist and swing circuits are
proportioned to match either a 90° or 180° swing angle to the dump
truck. Boom lift and swing speeds match 90° or 180° loading operation
with the lever operated fully.
OUTSTANDING WORK PERFORMANCE AND
PRODUCTIVITY [No.5]
Swing priority mode
Power distribution Swing angle
OFF Boom > Swing 90°
ON Boom < Swing 180°

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Guards and protectors to prevent undercarriage damage
Full length roller guard (Optional)
RELIABILITY AND DURABILITY FEATURES [No.1]
Full length roller guard (optional)
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Optional Optional Not available
Full length roller guard

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RELIABILITY AND DURABILITY FEATURES [No.2]
Guards and protectors to prevent undercarriage damage
Rock protector (Standard)
The PC1250LC-8 is equipped with rock protectors to protect the travel motors & piping
Rock protector
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped Not available
Rock protector

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• High-pressure in-line filters
• Hydraulic cylinders with metal guard
ring to prevent seizure
• O-ring face seal
RELIABILITY AND DURABILITY FEATURES [No.3]
Clean and reliable hydraulic circuit
In-line filter
Piston O-ring face seal
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped INA
Equipped Equipped INA
Equipped Equipped Equipped
In-line fillter
Metal guard ring
O-ring face seal
Metal guard ring
(Cast iron ring)
Piston ring
Wear ring

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Increased reliability of the fuel system by the removal of contaminants
RELIABILITY AND DURABILITY FEATURES [No.4]
Fuel pre-filters with water separators (New)
Fuel pre-filters
(With water separator function)

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DT-type connector
Heat-resistant wires
Circuit breaker
RELIABILITY AND DURABILITY FEATURES [No.5]
Highly reliable electric circuit
DT connecter Circuit breaker
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped INA
Equipped Equipped INA
Equipped Equipped INA
DT-type connector
Heat-resistant wires
Circuit breaker

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A 12mm (0.47") steel plate + 32mm (1.26") square bar rock protector is
installed to the bottom plate of the arm.
RELIABILITY AND DURABILITY FEATURES [No.6]
Arm with rock protector (Standard with HD and SP arms)
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped (standard) Equipped (standard) Equipped (standard)
Rock protector for arm

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Model Komatsu Komatsu Hitachi Komatsu
Item PC1250-8 PC1250-7 EX1200-5D PC800/850-8
m3
(yd3
) 2.89 (3.78) 2.89 (3.78) INA 2.67 (3.49)
Width mm (ft.in) 1080 (3' 7") 1080 (3' 7") 1100 (3' 7") 990 (3' 3")
Length mm (ft.in) 1800 (5'11") 1800 (5'11") 1915 (6' 3") 1800 (5'11")
Height mm (ft.in) 1710 (5' 7") 1710 (5' 7") 1900 (6' 3") 1665 (5' 6")
Volume
Out side
dimensions
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.1]
Large cab -- meets ISO standard

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Model Komatsu Komatsu
Item PC1250-8 PC1250-7
mm (in) 160 (6.3") 160 (6.3")
mm (in) 180 (7.1") 180 (7.1")
mm (in) 922 (36.2") 922 (36.2")
Seat sliding travel
Console sliding travel
Distance from travel control
lever to seat position
The large cab enables full flat
reclining of the seat back with
headrest.
• Spacious foot space
• Fore-and-aft seat adjustment:
340 mm (13.4")
• Seat is separately adjustable
Adjustable operator seat
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.2]

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The PC1250LC-8 cab is also equipped with a see-through skylight for
better upper view. In addition, a sliding sunshade is installed as standard
to block-out direct sunlight.
See-through skylight for better upward visibility
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.3]
Skylight with a sun shade

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Cab damper mounting to lower noise and vibration
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.4]
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Cab damper type Cab damper type Single-layer viscous
Cab mount

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Pressurized cab with automatic climate-control air conditioner
• With defrost function for better visibility
• Equipped with hot/cool box
Large-capacity air conditioner (Standard)
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.5]
Defroster Hot and cool box
Comparison of air conditioner
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
 Full-auto Full-auto Full-auto
kcal/h 6900 6900 INA
kcal/h 6500 6500 INA
mmAq (inAq) 10 (0.39) 10 (0.39) INA
Type
Pressurized value
Cooling capacity
Heating capacity

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Comparison of noise (at operator's ears)
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
dB 71.4/73.9* 74.2 73.8
Note All the noise values are measured values and not guaranteed
*: 70% fan speed / Max. fan speed
The noise level is described as 73 dB in the label for EU specification machines.
Sound power level
Low noise cab design concept
Use of highly-rigid cab which has excellent sound absorption
characteristics
• Employment of large-size hybrid fan
• Employment of low-noise muffler
• Installation of muffler sound insulation cover
• Employment of hydraulically-driven variable speed fan
• Use of multi-layer viscous cab mounts
• Use of sound absorption padding in upper frame & under cab
Low noise cab
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.6]

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Shockless boom control
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.7]
Reduction in machine vibration and shock
System benefits are:
• Prevention of load spillage from bucket.
• A decrease in operator fatigue leading to improved safety and
productivity.
• One-way check valve in boom return circuit (On/off control in cab)
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped Not equipped
Shockless boom control

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A flanged floor mat is employed so that the inside of the cab can be
washed with water. Since the floor inclines gently toward the cab
door, water is drained easily. Additional water can be drained off
through the draining holes at the front part of the floor under the
mat.
Washable floor mat
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.8]

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Color graphic LCD (Liquid Crystal Display) screen
Multi-function color monitor (1/2)
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.9]
Working mode
Engine coolant
temperature gauge
Buzzer cancel switch
Power mode switch
Economy mode switch
Heavy lift mode switch
Automatic deceleration
selector switch
Travel speed
selector switch
Service meter
Travel speed
Hydraulic oil
temperature gauge
Fuel gauge
Working mode
selector switch
Screen adjustment switch
Maintenance switch
Screen select switch
Windshield wiper
and washer switch
Swing priority
mode switch

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Monitor provides excellent visibility even in bright sunlight.
Multi-function color monitor (2/2)
COMFORTABLE OPERATOR'S ENVIRONMENT
[No.10]
Display under nighttime work (Working light switch is turned ON.)

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Easy to clean radiator with reversible hydraulic fan (New)
EASY MAINTENANCE [No.1]
Hybrid fan
Hydraulic motor for fan drive
Fan is reversed from inside cab via monitor panel

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A walkway is provided in the center of the machine upper structure to
make it possible to carry out inspection of the engine and hydraulic
equipment easily.
Single-level maintenance
EASY MAINTENANCE [No.2]

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Lubrication indicator confirms
greasing is being performed
* Hose reel to reach all grease
points easily.
* PC1250LC-8 grease points are
grouped for easy access,
ensuring complete maintenance.
Air-operated Greasing System (Standard)
EASY MAINTENANCE [No.3]

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Electric
priming
pump switch
EASY MAINTENANCE [No.4]
Electric priming pump
When fuel filters are replaced, recharging of the fuel system can be
performed in a short time and easily with filtered fuel.
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Type of priming pump Electric Manual INA

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New hydraulic oil filter
The replacement interval is increased and
the filter size is reduced by using micro-glass
high-performance filtration material
Extended hydraulic oil filter replacement
EASY MAINTENANCE [No.5]
Conventional
hydraulic oil filter
New
hydraulic oil filter
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Engine oil 500 500 500
Engine oil filter 500 500 500
Hydraulic oil 5000 5000 4000
Hydraulic oil filter 1000 500 500
Fuel filter 500 500 1000

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Display of machine fault codes and condition checks.
EMMS (Equipment Management Monitoring System) (1/2)
EASY MAINTENANCE [No.6]
Display of fault
Machine check function
for troubleshooting
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped Equipped
Equipped Equipped Equipped
Equipped Equipped Equipped
Equipped Equipped Equipped
Display function abnormal condition
Analyzing function of abnormal condition
Maintenance (Filter & oil change interval)
Trouble history memory function

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• Maintenance function
• Maintenance history data memory function
• Trouble data memory function
EMMS (Equipment Management Monitoring System) (2/2)
EASY MAINTENANCE [No.7]

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VHMS (Vehicle Health Monitoring System)
EASY MAINTENANCE [No.8]

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Wide catwalk, large steps and handrails
SAFETY FEATURES [No.1]
Easier, safer operator cab access and maintenance checks.
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Cab side mm (ft.in) 845 (2' 9") 845 (2' 9") 510 (1' 8")
Rear mm (ft.in) 620 (2') 620 (2') INA
Catwalk width

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Strengthened fully pressed
steel cab
The newly designed and reinforced
steel cab is manufactured with a solid
press forming process to attain an
ideal strong frame structure having
high rigidity.
Optional quarry cab has capability to
comply OPG top guard level 2 (FOG)
with bolt-on top guard.
Operator safety design (1/2)
SAFETY FEATURES [No.2]

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OPG top guard (optional)
OPG top guard is an available option for quarry cab only.
Operator safety design (2/2)
SAFETY FEATURES [No.3]
OPG top guard

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Neutral start with PPC lock solenoid valve
SAFETY FEATURES [No.4]
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Equipped Equipped Equipped
Engine neutral start

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The step light illuminates for approx. 1 minute to allow the operator to
exit the machine safely at night. The light goes out automatically.
Step light with timer
SAFETY FEATURES [No.5]
Model Komatsu Komatsu Hitachi
Item PC1250-8 PC1250-7 EX1200-5D
Available Available Available
Step light with timer

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Truck operator can be signalled with warning light even if horn cannot be
heard. (Warning light flashes for approx. 5 seconds when horn is sounded.)
Warning light interconnected with horn (Standard)
SAFETY FEATURES [No.6]

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Spiked type slip resistant steel plates maintain
improved foot traction long term.
Slip resistant plates (New)
SAFETY FEATURES [No.7]
Photo differs from that for PC1250-8.

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Global safety design -- meets USA, EU and Japan standards
SAFETY FEATURES [No.8]
Cab has capability for
OPG top guard level 2
compliance with optional
bolt-on top guard
Lock lever
This lever locks hydraulic
system to prevent
accidental operation. Since
the engine neutral start
system is utilized, the
engine can start only when
the lock lever is in the
LOCK position.
Tempered green glass
The front glass is
tempered green glass
having high strength.
It also blocks out
ultraviolet rays.
Retractable-type seat belt
The convenient retractable seat
belt holds the operator's body
securely.
Large-sized handrails
The operator can get on
and off the machine safely.
Fan guard and thermal guard
These guards prevent the
operator from touching a hot part
or the fan during inspection of the
engine.
Catwalk
The surface is improved to
prevent operator from
slipping for improved safety.
Oil splash prevention wall (Fire wall)
If a hydraulic leak occurs, the bulkhead
between the pump compartment and
engine compartment prevents the oil
from spraying over hot parts.
Slip resistant plates
Prevents operator
from slipping during
inspection, etc.

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• Interchangeability of bucket
The buckets of PC1250LC-7 and PC1250LC-8 are interchangeable.
ATTACHMENTS & OPTIONAL EQUIPMENT [No.1]

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Interchangeability between PC1250LC-8 and PC1250LC-7
INTERCHANGEABILITY [No.1]
Unit (1/3)
Name Interchangeability Reason for non-interchangeability
Engine assembly Not interchangeable
Engine complying with Emissions Regulations EPA Tier 3 and EU Stage 3A is
installed. (SAA6D170-3 to SAA6D170E-5)
Fan Not interchangeable
Electronically controlled hydraulic driven fan is adopted.
Steel fan 1350 mm (4'5") in diameter to Hybrid fan 1450 mm (4'9") in diameter
Fuel tank Not interchangeable Anti-slip plate is added.
Cooling assembly Not interchangeable
Changed due to the installation of the engine complying with Emissions Regulations.
Adoption of large capacity cooling system.
Swing circle Interchangeable
Swing machinery Interchangeable
Final drive, sprocket Interchangeable
Idler Interchangeable
Idler cushion assembly Interchangeable
Track roller, carrier roller Interchangeable
Center frame Interchangeable
Crawler frame Interchangeable
Track shoes Interchangeable
PTO Not interchangeable Change of main shaft with the addition of fan pump.
Revolving frame Not interchangeable
Changed due to the installation of the engine complying with Emissions Regulations.
Adoption of large capacity cooling system.
Counterweight Interchangeable

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Unit (2/3)
Name Interchangeability Reason for non-interchangeability
Cab Interchangeable
Air conditioner Interchangeable
Operator's seat Interchangeable
Monitor Not interchangeable Addition of level setting function in E mode.
Controller, engine control Not interchangeable CM850 engine controller is installed.
Pump controller Not interchangeable Hydraulic driven fan control is added.
Solenoid valve Interchangeable
Main pump assembly Not interchangeable* Change of pump assembly configuration.
Pilot pump Not interchangeable Change of pump assembly configuration.
Control valve assembly Interchangeable
Swing motor Interchangeable
Travel motor Interchangeable
Center swivel Interchangeable
Hydraulic tank Not interchangeable Anti-slip plates are added.
PPC valve for work equipment Interchangeable
PPC valve for travel Interchangeable
*: Interchangeable from New to Current, but not vice versa.
Interchangeability between PC1250LC-8 and PC1250LC-7
INTERCHANGEABILITY [No.2]

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Interchangeability between PC1250LC-8 and PC1250LC-7
INTERCHANGEABILITY [No.3]
Unit (3/3)
Name Interchangeability Reason for non-interchangeability
Hydraulic driven fan motor Not interchangeable Newly added.
Boom cylinder Interchangeable
Arm cylinder Interchangeable
Bucket cylinder Interchangeable
Boom assembly Interchangeable
Arm assembly Interchangeable
Bucket assembly Interchangeable Bucket tooth is changed to XS tooth.(Heavy-duty version)

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Interchangeability between PC1250LC-8 and PC1250LC-7
INTERCHANGEABILITY [No.4]
Consumable parts
Name Interchangeability Reason for non-interchangeability
Engine oil filter Not interchangeable Due to engine change.
Hydraulic oil return filter Not interchangeable Adoption of Eco-white element.
Fuel filter Not interchangeable Change in quentity: from 2 to 1 and filterable particle size; from 5µ to 2µ.
Fuel pre-filter Not interchangeable
Newly added.
Addition of two 10µ filters.
Air cleaner element Interchangeable
Hydraulic hose Not interchangeable Interchangeable except hoses connecting to newly added fan pump and motor.
Bucket tooth Not interchangeable Changed to the XS tooth. (heavy-duty version)
Tooth adapter Not interchangeable Changed to the XS tooth adapter. (heavy-duty version)
Side shroud Interchangeable
Side cutters Interchangeable

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Posture for transportation
TRANSPORTATION GUIDE
Backhoe
Four-part transportation
(1) Work equipment assembly (3) Undercarriage
(4) Others
(2) Upper structure
Boom
Arm
Bucket
Boom cylinder
Width : 3490 11'5"
Arm cylinder

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