Komatsu 6D170-2 Series Diesel Engine Service Repair Manual

S6D170-2
Komatsu D275A-2 – 17358 and up

SA6D170-2
Komatsu D375A-3 – 17353 and up
Komatsu WA600-3 – 17353 and up
Komatsu PC1000-1 – 17360 and up
Komatsu WF650T-3 – 21841 and up

SAA6D170-2
Komatsu PC1100-6 – 17389 and up
Komatsu WA700-3 – 17389 and up
Komatsu HD465-5 {up to 4625) – 17389 and up
Komatsu HD465-5 (up to 4626) – 17389 and up

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Manual Contents:

01 GENERAL
-APPLICABLE MACHINE
-SPECIFICATIONS
-GENERAL ASSEMBLY DRAWING
-WEIGHT TABLE
-ENGINE PERFORMANCE CURVE
11 STRUCTURE AND FUNCTION
-INTAKE AND EXHAUST SYSTEM
–AIR CLEANER
–TURBOCHARGER
–AFTERCOOLER
-ENGINE BODY
–CYLINDER HEAD
–VALVE SYSTEM
–CYLINDER BLOCK
–MAIN REVOLUTION
–TIMING GEAR
–FLYWHEEL AND FLYWHEEL HOUSING
-LUBRICATION SYSTEM
–OIL PUMP
–OIL FILTER AND SAFETY VALVE
–BYPASS OIL FILTER
–OIL COOLER
–OIL PUMP RELIEF VALVE
–OIL COOLER BYPASS VALVE
–PISTON COOLING VALVE
-FUEL SYSTEM
–FUEL INJECTION PUMP
–FUEL INJECTION PUMP
–FUEL INJECTION NOZZLE
–FUEL INJECTION PUMP DRIVE
–FUEL FILTER
–STARTING AID
–FUEL CUT SOLENOID
–ENGINE STOP MOTOR
-COOLING SYSTEM
–WATER PUMP
–COOLING FAN
–CORROSION RESISTOR
–THERMOSTAT
-ACCESSORY
–AIR COMPRESSOR MOUNTING
–FREON COMPRESSOR
–AIR COMPRESSOR
–EXHAUST BRAKE
-ELECTRICAL SYSTEM
–ALTERNATOR
–ALTERNATOR WITH BUILT-IN REGULATOR
–STARTING MOTOR
12 TESTING AND ADJUSTING
-ENGINE BODY
–ADJUSTING VALVE CLEARANCE
–MEASURING COMPRESSION PRESSURE
–INSTALLING ENGINE SPEED SENSOR
-FUEL SYSTEM
–TESTING AND ADJUSTING FUEL INJECTION TIMING
–ADJUSTING FUEL INJECTION PRESSURE
–CALIBRATION DATA
–REPLACE FAN BELT AND ADJUSTING AUTO TENSIONER
-ELECTRICAL SYSTEM
–TESTING AND ADJUSTING ALTERNATOR BELT TENSION
-PERFORMANCE TEST
–RUNNING IN STANDARD
–PERFORMANCE TEST CRITERIA
-TROUBLESHOOTING
–POINTS TO REMEMBER WHEN TROUBLESHOOTING
–METHOD OF USING TROUBLESHOOTING CHART
–S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)
–S-2 ENGINE DOES NOT START
—(1) ENGINE DOES NOT TURN
—(2) ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)
—(3) EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)
–S-3 ENGINE DOES NOT PICK-UP SMOOTHLY (FOLLOW-UP IS POOR)
–S-4 ENGINE STOPS DURING OPERATIONS
–S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)
–S-6 ENGINE LACKS OUTPUT (NO POWER)
–S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)
–S-8 OIL COMSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE)
–S-9 OIL BECOMES CONTAMINATED QUICKLY
–S-10 FUEL CONSUMPTION IS EXCESSIVE
–S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVER GOES DOWN
–S-12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)
–S-13 OIL LEVEL RISES
–S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)
–S-15 ABNORMAL NOISE IS MADE
–S-16 VIBRATION IS EXCESSIVE
–TOOL LIST
–TESTING AND ADJUSTING DATA
13 DISASSEMBLY AND ASSEMBLY
-SPECIAL TOOL LIST
-DISASSEMBLY
-WASHING
-WASHING CYLINDER BLOCK
-WASHING CRANKSHAFT
-MEASURING PARTS
-ASSEMBLY
14 MAINTENANCE STANDARD
-TURBOCHARGER
-CYLINDER HEAD
-VALVES AND VALVE GUIDE
-CROSSHEAD AND CROSSHEAD GUIDE
-PUSH ROD AND CAM FOLLOWER
-CYLINDER BLOCK
-CYLINDER LINER
-CRANKSHAFT
-CAMSHAFT
-TIMING GEAR
-PISTON
-CONNECTING ROD
-OIL PUMP
-OIL PUMP RELIEF VALVE, PISTON COOLING VALVE AND OIL COOLER BY-PASS VALVE
-WATER PUMP
15 REPAIR AND REPLACEMENT OF PARTS
-TABLE OF SPECIAL TOOLS
-CYLINDER HEAD
-TESTING AND INSPECTING
-REPAIRING MOUNTING FACE OF CYLINDER HEAD BY GRINDING
-REPLACING VALVE SEAT INSERTS
-REPLACING NOZZLE HOLDER SLEEVE
-PRESSURE TEST METHOD
-REPLACING VALVE GUIDE
-REPLACING CROSS HEAD GUIDE
-GRINDING THE VALVE
-CYLINDER BLOCK
-TESTING AND INSPECTING
-GRINDING THE TOP SURFACE OF CYLINDER BLOCK
-REPLACING MAIN BEARING CAP
-REPLACING CAM BUSHING
-CRANKSHAFT
-REPAIRING THE CRANKSHAFT
-CONNECTING ROD
-REPLACING CRANKSHAFT GEAR
-REPLACING CAMSHAFT GEAR
-REPLACING FLYWHEEL RING GEAR