INTRODUCTION 1.6 TABLE OF CONTENTS 4.10.6 CAB AIR CLEANER - CLEAN OR REPLACE FILTER ELEMENT ................................... 381 4.10.7 AIR CONDITIONING FOR OPERATOR’S CAB - CHECK REFRIGERANT LEVEL ......... 383 4.10.8 WINDSHIELD WASHER SYSTEM - CHECK FLUID LEVEL ............................................ 385 4.11 EVERY 500 OPERATING HOURS OR QUARTERLY .................................................................. 386 4.11.1 BATTERIES - CHECK FLUID LEVEL ............................................................................... 387 4.11.2 FLEXIBLE DRIVE COUPLINGS - CHECK OIL LEVEL .....................................................
389 4.11.3 FUEL TANK - DRAIN CONDENSATION .......................................................................... 391 4.11.4 CRAWLER TRACK - INSPECTION .................................................................................. 393 4.11.5 GROUND CABLES OF ENGINE AND ALTERNATOR - CHECK FOR CORRECT CONNECTION .................................................................................................................. 399 4.11.6 GROUND CABLE OF OPERATOR’S CAB - CHECK FOR CORRECT CONNECTION ... 401 4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH .........................................................
402 4.12.1 HIGH STRENGTH BOLT CONNECTIONS - CHECK TORQUE LOAD ............................ 403 4.12.2 HYDRAULIC SYSTEM - FILTER SERVICE ..................................................................... 461 4.12.3 PTO’S (PUMP DISTRIBUTOR GEARS), SWING GEARS AND TRAVEL GEARS - OIL SAMPLE ANALYSIS ......................................................................................................... 475 4.12.4 SIGNAL HORN COMPRESSOR - CLEAN AND LUBRICATE .......................................... 477 4.12.5 HYDRAULIC TRACK TENSIONING SYSTEM - CHECK PRESSURE ACCUMULATORS .... 479 4.12.6 WATER FILTER - REPLACE FILTER CARTRIDGE ........................................................
481 4.12.7 HYDRAULIC OIL COOLER - INSPECT AND LUBRICATE DOOR HINGES .................... 483 4.12.8 MACHINERY HOUSE DOORS - INSPECT AND LUBRICATE DOOR HINGES .............. 485 4.13 EVERY 2000 OPERATING HOURS OR YEARLY ........................................................................ 486 4.13.1 HYDRAULIC SYSTEM - CHANGE OIL, REPLACE SUCTION STRAINERS AND PULSATION DAMPER ...................................................................................................... 487 4.13.2 EMERGENCY ESCAPE LADDER - INSPECTION ........................................................... 499 4.14 EVERY 3000 OPERATING HOURS HOWEVER AT LEAST ONCE A YEAR ..............................
500 4.14.1 SWING GEARS AND MOTOR ADAPTER HOUSING - CHANGE OIL ............................. 501 4.14.2 TRAVEL GEARS, MOTOR ADAPTER HOUSINGS AND FINAL DRIVES CHANGE OIL 509 4.14.3 PTO (PUMP DISTRIBUTOR GEAR) - CHANGE OIL ....................................................... 513 4.15 FIRE PREVENTION ....................................................................................................................... 516 4.16 WELD REPAIRS ............................................................................................................................
518 4.16.1 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE UNDERCARRIAGE ........................................................................................................... 521 4.16.2 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE LOADER ATTACHMENT .................................................................................................................. 523 4.16.3 PROTECTIVE MEASURES BEFORE STARTING WELD REPAIRS ON THE SUPERSTRUCTURE ........................................................................................................ 525 4.16.4 AFTER FINISHING THE REPAIR WELDINGS ON THE SUPERSTRUCTURE ............... 527 13