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Komatsu GD655-6 Shop Manual page 16

Motor grader

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INDEX
H-17 PARKING BRAKE DOES NOT WORK OR IT IS WEAK .....................................................40-1161
H-18 PARKING BRAKE IS NOT RELEASED OR DRAGS ..........................................................40-1162
H-19 LIFTER LOCK PIN DOES NOT WORK OR CANNOT BE RELEASED ..............................40-1163
H-20 ALL WORK EQUIPMENTS OPERATE SLOWLY ...............................................................40-1164
H-21 ALL WORK EQUIPMENTS DO NOT OPERATE ................................................................40-1166
H-22 BLADE LIFT SPEED OR POWER IS LOW ........................................................................40-1167
H-23 DRAWBAR SIDE SHIFTING SPEED OR POWER IS LOW ...............................................40-1168
H-24 BLADE SIDE SHIFTING SPEED OR POWER IS LOW......................................................40-1169
H-25 POWER TILT SPEED OR POWER IS LOW.......................................................................40-1170
H-26 ARTICULATE SPEED OR POWER IS LOW ......................................................................40-1171
H-27 LEANING SPEED OR POWER IS LOW.............................................................................40-1172
H-28 HYDRAULIC DRIFT OF LIFTED BLADE IS LARGE ..........................................................40-1173
H-29 HYDRAULIC DRIFT OF LEANING IS LARGE....................................................................40-1174
H-30 BLADE DOES NOT ROTATE .............................................................................................40-1175
H-31 BLADE ACCUMULATOR FUNCTION DOES NOT WORK OR CANNOT BE RELEASED .40-1176
H-32 FAN SPEED IS ABNORMAL (TOO HIGH OR LOW, OR STATIONARY) ............................40-1177
H-33 UNUSUAL NOISE IS HEARD FROM AROUND FAN .........................................................40-1178
TROUBLESHOOTING OF ENGINE (S-MODE) .................................................................................40-1179
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE)...............................40-1179
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION.......
................................................................................................................................................40-1180
S-2 ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT .................................................40-1181
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS
BUT DOES NOT START) ........................................................................................................40-1182
S-4 ENGINE STARTABILITY IS POOR.......................................................................................40-1184
S-5 ENGINE DOES NOT PICK UP SMOOTHLY ........................................................................40-1186
S-6 ENGINE STOPS DURING OPERATION ..............................................................................40-1188
S-7 ENGINE RUNS ROUGH OR IS UNSTABLE ........................................................................40-1190
S-8 ENGINE LACKS POWER.....................................................................................................40-1191
S-9 KDPF GETS CLOGGED IN A SHORT TIME ........................................................................40-1193
S-10 ENGINE OIL CONSUMPTION IS EXCESSIVE ..................................................................40-1195
S-11 OIL BECOMES CONTAMINATED QUICKLY ......................................................................40-1196
S-12 FUEL CONSUMPTION IS EXCESSIVE .............................................................................40-1197
S-13 OIL IS IN COOLANT (OR COOLANT SPURTS BACK OR COOLANT LEVEL GOES DOWN) .......
................................................................................................................................................40-1198
S-14 OIL PRESSURE DROPS ...................................................................................................40-1199
S-15 FUEL MIXES INTO ENGINE OIL........................................................................................40-1201
S-16 WATER MIXES INTO ENGINE OIL (MILKY) ......................................................................40-1202
S-17 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEATING) ....................................40-1203
S-18 UNUSUAL NOISE IS HEARD.............................................................................................40-1204
S-19 VIBRATION IS EXCESSIVE ...............................................................................................40-1205
S-20 AIR CANNOT BE BLED FROM FUEL CIRCUIT.................................................................40-1206
S-21 ACTIVE REGENERATION IS EXECUTED FREQUENTLY ................................................40-1207
S-22 ACTIVE REGENERATION TAKES TIME............................................................................40-1209
S-23 WHITE SMOKE IS EXHAUSTED DURING ACTIVE REGENERATION..............................40-1210
S-24 AdBlue/DEF CONSUMPTION IS EXCESSIVE ...................................................................40-1211
S-25 THERE IS UNUSUAL SMELL (IRRITATING ODOR) ..........................................................40-1213
S-26 FOREIGN MATERIALS ENTER AdBlue/DEF (AdBlue/DEF INCREASES).........................40-1214
50 DISASSEMBLY AND ASSEMBLY............................................................................................................. 50-1
CONTENTS ............................................................................................................................................ 50-2
ABBREVIATION LIST ............................................................................................................................. 50-7
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY ........................................................ 50-13
HOW TO READ THIS MANUAL..................................................................................................... 50-13
COATING MATERIALS LIST.......................................................................................................... 50-15
SPECIAL TOOLS LIST .................................................................................................................. 50-20
SKETCHES OF SPECIAL TOOLS................................................................................................. 50-38
ENGINE AND COOLING SYSTEM....................................................................................................... 50-70
REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY .................................................................. 50-70
00-14
00 INDEX AND FOREWORD
GD655-6, GD675-6

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