Komatsu D51PX-24 Shop Manual

TEST FUEL PRESSURE ............................................................................................................... 30-
35
TEST FUEL DISCHARGE, RETURN AND LEAKAGE ................................................................... 30-40
BLEED AIR FROM FUEL SYSTEM ............................................................................................... 30-46
TEST FUEL CIRCUIT FOR LEAKAGE .......................................................................................... 30-47
HANDLE CYLINDER CUT-OUT MODE OPERATION.................................................................... 30-49
HANDLE NO-INJECTION CRANKING OPERATION ..................................................................... 30-50
TEST KDOC, SCR AND MUFFLER STACK FOR LOOSENESS AND DAMAGE .......................... 30-51
TEST INSTALLED CONDITION OF CYLINDER HEADS AND MANIFOLDS ................................. 30-52
TEST ENGINE PIPING FOR DAMAGE AND LOOSENESS .......................................................... 30-53
WRITE ASH IN SOOT ACCUMULATION CORRECTION TO ENGINE CONTROLLER ................ 30-54
TEST SCR RELATED FUNCTIONS............................................................................................... 30-55
CLEAN AdBlue/DEF TANK ............................................................................................................ 30-83
CLEAN AdBlue/DEF TANK MOUNTING PORTION ....................................................................... 30-87
POWER TRAIN..................................................................................................................................... 30-88
TEST AND ADJUST HST OIL PRESSURE ................................................................................... 30-88
BLEED AIR FROM HST PUMP ..................................................................................................... 30-93
TEST OUTLET PRESSURE OF SOLENOID VALVE ..................................................................... 30-95
TEST TRAVEL DEVIATION ........................................................................................................... 30-99
TEST BRAKE PERFORMANCE SIMPLY .....................................................................................30-101
TEST AND ADJUST DECELERATION/BRAKE PEDAL................................................................30-102
ADJUST PARKING BRAKE LEVER..............................................................................................30-106
MOVE MACHINE WHEN IT CANNOT TRAVEL............................................................................30-108
UNDERCARRIAGE AND FRAME........................................................................................................ 30-111
CHECK AND ADJUST IDLER CLEARANCE ................................................................................ 30-111
TESTING SPROCKET WEAR ......................................................................................................30-113
TEST AND ADJUST TRACK TENSION........................................................................................30-114
HYDRAULIC SYSTEM.........................................................................................................................30-116
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM............................................30-116
TEST AND ADJUST WORK EQUIPMENT OIL PRESSURES ......................................................30-117
TEST AND ADJUST OIL PRESSURE OF CONTROL CIRCUIT...................................................30-120
TEST OUTLET PRESSURE OF EPC SOLENOID VALVE ............................................................30-122
BLEED AIR FROM WORK EQUIPMENT AND COOLING FAN PUMP .........................................30-124
TEST COOLING FAN SPEED ......................................................................................................30-125
TEST COOLING FAN CIRCUIT OIL PRESSURE .........................................................................30-126
TEST THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT................................30-128
TEST INTERNAL OIL LEAKAGE OF WORK EQUIPMENT CYLINDER .......................................30-130
BLEED AIR FROM WORK EQUIPMENT CYLINDERS.................................................................30-133
WORK EQUIPMENT............................................................................................................................30-134
ADJUST WORK EQUIPMENT LOCK LEVER...............................................................................30-134
ELECTRICAL SYSTEM .......................................................................................................................30-136
SET AND OPERATE MACHINE MONITOR..................................................................................30-136
METHOD FOR STARTING UP KOMTRAX TERMINAL ................................................................30-264
ADJUSTMENT WHEN HST CONTROLLER HAS BEEN REPLACED ..........................................30-269
ADJUSTMENT WHEN ELECTRIC OR HYDRAULIC DEVICE HAS BEEN REPLACED ...............30-275
ADJUST REARVIEW CAMERA ANGLE .......................................................................................30-277
HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER .........................................................30-278
HANDLE BATTERY DISCONNECT SWITCH ...............................................................................30-279
TEST DIODES ..............................................................................................................................30-280
Pm CLINIC...........................................................................................................................................30-281
Pm CLINIC SERVICE ...................................................................................................................30-281
40 TROUBLESHOOTING .............................................................................................................................. 40-1
CONTENTS ............................................................................................................................................ 40-2
ABBREVIATION LIST ........................................................................................................................... 40-12
RELATED INFORMATION ON TROUBLESHOOTING ......................................................................... 40-18
GENERAL TROUBLESHOOTING POINTS ................................................................................... 40-18
TROUBLESHOOTING POINTS FOR UREA SCR SYSTEM.......................................................... 40-19
SEQUENCE OF EVENTS IN TROUBLESHOOTING..................................................................... 40-31
CHECKS BEFORE TROUBLESHOOTING.................................................................................... 40-33
INDEX 00 INDEX AND FOREWORD
00-4 D51EX-24, D51PX-24
Find manuals at https://best-manuals.com

Komatsu D51PX-24 Specifications

General

Engine Model	Komatsu SAA6D107E-1
Net Power	121 HP (90.2 kW)
Operating Weight	19, 290 kg (42, 530 lb)
Blade Capacity	3.4 m³ (4.4 yd³)
Ground Clearance	400 mm
Track Gauge	1880 mm