Komatsu Wheeled Excavator PW148-11 service & repair manual

Description Komatsu Wheeled Excavator PW148-11 service & repair manual

Komatsu Wheeled Excavator PW148-11 pdf workshop service & repair manual

Serial numbers:
H55051 and up

Technical documentation, specifications, troubleshooting, maintenance, electrical diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
GENERAL
Specification dimension drawings1
Dimensions
Working ranges
Working range: 1-piece boom
Working range: 2-piece boom
Weight table
1-piece boom
2-piece boom
Fuel, coolant and lubricants

STRUCTURE AND FUNCTION
Abbreviation list
UREA SCR system
Layout drawing of UREA SCR system
UREA SCR system diagram
Component parts of UREA SCR system
SCR assembly
AdBlue/DEF tank
Layout drawing of BOOT-UP system
System operating lamp system
Battery disconnect switch
Layout drawing of engine system
Engine control system
Auto-deceleration system
Overheat prevention system
Turbocharger protection system
Automatic idle stop system
Component parts of engine system
EGR system
EGR valve
EGR cooler
KCCV system
KCCV ventilator
KDOC
Cooling system
Engine output control system of fan clutch
Swing circle
Swing machinery & motor
Operation of swing lock
Relief valve portion
Undercarriage
Transmission
Trailer
Calculation of maximum coupling Load
Automatic trailer coupling for blade
Automatic trailer coupling for outrigger
Inspection
2nd Auxiliary circuit in the undercarriage
Hydraulic quick coupler
Full hydraulic quick coupler
Travel motor
Operation of travel motor
Clutch control circuit
Axle
Suspension lock cylinder
Braking system
Gear pump
Priority valve
Power brake valve
Accumulator for brake valve
Steering system
Structure and function
Steering column
Specifications
Steering column STD
Steering column JSS
Orbitrol valve STD
Orbitrol valve JSS
Hydraulic equipment layout drawings
Hydraulic circuit diagram
Hydraulic tank
Hydraulic pump
LS valve
PC valve
LS(PC)-EPC valve
Pilot pressure control (PPC) system
Control main valve
CLSS
Outline of CLSS
Basic Principle
Operation for each function and valve
1.Unload valve
2.Introduction of LS pressure
3.LS bypass plug
4.Pressure compensation valve
5.Area ratio of pressure compensation valve
6.Boom regeneration circuit
7.Arm regeneration circuit
8.Swing bleeding valve
9.LS select valve
Centre swivel joint
Travel PPC pedal
Work equipment – Swing PPC valve
Solenoid valve block with integrated ATT - EPC
ON / OFF Solenoid valves (3 way valve)
Attachment PPC valve
Bucket to 2ATT
Function
Boom safety valve
Boom floating
Hydraulic cylinder
Boom cylinder
Arm cylinder
Bucket cylinder
Adjust cylinder
Outrigger cylinder
Dozer cylinder
Work equipment
1.Dimension of arm
2.Dimension of bucket
Tool control
ECSS
Breaker return valve
Air conditioner
Air conditioner component
Specifications of air conditioner
Electrical wiring diagram
Electrical system
Engine control
Engine controller
Structure of engine controller
Machine monitor system
Function of machine monitor
Monitor display
Caution monitor
Monitor switches
KOMTRAX system
KOMTRAX terminal
KomVision system
Layout drawing of KomVision system
KomVision controller
Overload warning device
Outline
Sensor
Ambient pressure sensor
Charge (boost) pressure and temperature sensor
Coolant temperature sensor
Ne (crankshaft) speed sensor
Bkup (camshaft) speed sensor
Common rail pressure sensor
Exhaust manifold pressure sensor
EGR orifice temperature sensor
Variable flow turbocharger motor (with built-in position sensor)
EGR valve (with built-in position sensor)
EGR valve lift sensor
KVGT speed sensor
Fuel level sensor
WIF (Water-In-Fuel detection) sensor
Coolant level sensor
Air cleaner clogging sensor
Overload Caution sensor
Swing proximity sensor
Brake sensors
Main valve sensor
PPC levers
1st attachment circuit hydraulic performance (main valve bypassed)
Travel system
Travel circuit
Lubrication diagrams

STANDARD VALUE TABLE
Standard value table for engine related parts
Standard value table for chassis related parts
PM clinic service

TESTING AND ADJUSTING
Engine and cooling system
Test engine speed
Method for testing engine speed
Replacing the fan belt
Measurement of clearance in swing circle bearing
Inspection and adjustment of hydraulic oil pressure in hydraulic circuit for work equipment, swing and travel
Inspection and adjustment of control circuit oil pressure
Inspection and adjustment of pump PC (valve inlet) control oil pressure
Inspection and adjustment of pump LS differential pressure
Measurement of solenoid valve output pressure
Adjustment of work equipment and swing PPC valve
Measuring and adjusting quick coupler control valve output pressure
Testing travel motor relief pressure
Testing propshaft speed
Testing transmission clutch control circuit
Inspection of locations of hydraulic drift of work equipment
Release of remaining pressure in hydraulic circuit
Measurement of oil leakage
Air bleeding of various parts
Inspection procedures for diode
Electrical system
Inspection and adjustment of ECSS (ACCU pressure)
Inspection and adjustment of Tool control
Changing the lubrication interval times
Adjust rearview camera angle
Method for adjusting rear view camera angle
Adjust KomVision camera angle
Method for adjusting KomVision camera angle
Angle adjustment method for front R.Hcamera, rear R.Hcamera, and rear L.Hcamera
Angle adjustment method for rear camera
Adjust KomVision related items
Setting of KomVision (main setting)
Setting of KomVision (camera setting)
Setting of KomVision (camera calibration)

Troubleshooting
Troubleshooting by failure code (Display of code)

Dasassembly and assembly
Front axle
Rear axle
Transmission

Hydraulic circuit diagram
Wiring circuit diagram
Connector diagram

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