Komatsu PC450-8 Operation & Maintenance Manual page 20

CONTENTS
FILTERS ............................................................................................................................................ 4-7
EXPLANATION OF LUBRICATION CHART DECAL
.................................................................................................................................................................... 4-8
ELECTRIC SYSTEM MAINTENANCE ..................................................................................................... 4-10
WEAR PARTS .................................................................................................................................................... 4-11
WEAR PARTS LIST.................................................................................................................................. 4-11
RECOMMENDED FUEL, COOLANT, AND LUBRICANT ................................................................................. 4-12
RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU
GENUINE OIL........................................................................................................................................... 4-14
TIGHTENING TORQUE SPECIFICATIONS ...................................................................................................... 4-15
TIGHTENING TORQUE LIST ................................................................................................................... 4-15
SAFETY CRITICAL PARTS ............................................................................................................................... 4-16
SAFETY CRITICAL PARTS LIST ............................................................................................................. 4-16
MAINTENANCE SCHEDULE ............................................................................................................................. 4-17
MAINTENANCE SCHEDULE CHART ...................................................................................................... 4-17
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER..................................................................... 4-19
MAINTENANCE PROCEDURE.......................................................................................................................... 4-20
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS) ............................... 4-20
WHEN REQUIRED ................................................................................................................................... 4-21
CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT ......................................................... 4-21
CLEAN INSIDE OF COOLING SYSTEM ........................................................................................ 4-27
CHECK AND TIGHTEN TRACK SHOE BOLTS.............................................................................. 4-30
CHECK AND ADJUST TRACK TENSION....................................................................................... 4-31
REPLACE BUCKET TEETH (VERTICAL PIN TYPE) ..................................................................... 4-33
REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)................................................................ 4-36
REPLACE BUCKET SIDE CUTTER, SHROUD .............................................................................. 4-38
ADJUST BUCKET CLEARANCE .................................................................................................... 4-39
CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID .............................................................. 4-40
CHECK AND MAINTENANCE AIR CONDITIONER ....................................................................... 4-41
WASH WASHABLE FLOOR............................................................................................................ 4-42
BLEEDING AIR FROM HYDRAULIC SYSTEM............................................................................... 4-45
CHECK BEFORE STARTING .................................................................................................................. 4-47
EVERY 50 HOURS MAINTENANCE........................................................................................................ 4-48
LUBRICATING................................................................................................................................. 4-48
EVERY 250 HOURS MAINTENANCE...................................................................................................... 4-49
LUBRICATE SWING CIRCLE ......................................................................................................... 4-49
CHECK LEVEL OF BATTERY ELECTROLYTE ............................................................................. 4-50
CHECK FAN BELT, ALTERNATOR BELT TENSION, ADJUST ..................................................... 4-52
CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST ..................................... 4-53
EVERY 500 HOURS MAINTENANCE...................................................................................................... 4-54
LUBRICATING................................................................................................................................. 4-54
REPLACE FUEL PRE-FILTER CARTRIDGE.................................................................................. 4-55
CHECK SWING PINION GREASE LEVEL, ADD GREASE ............................................................ 4-58
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE .................... 4-59
1-18