24. SERVICE PROCEDURE 24.7.8 CLEAN EMERGENCY RELAY VALVE Please contact your Komatsu distributor to have the valve disas- sembled and cleaned. 24.7.9 CHECK ALTERNATOR, STARTING MOTOR The brush may be worn or there may be no grease on the bearing, so please contact your Komatsu distributor for inspection and repair. If the engine is started frequently, have this inspection carried out every 1000 hours. 24.7.10 CHECK, ADJUST ENGINE VALVE CLEARANCE Special tools are needed for the inspection and maintenance, so please contact your Komatsu distributor to have this work carried out. 24.7.11 CLEAN, CHECK TURBOCHARGER Please contact your Komatsu distributor for cleaning and inspec- tion.
24.7.12 CHECK PLAY OF TURBOCHARGER ROTOR Please contact your Komatsu distributor for inspection of the rotor play. 24.7.13 REPLACE CRITICAL PARTS FOR PERIODICAL REPLACEMENT FROM SERVICE KIT For details, see “22. PERIODIC REPLACEMENT OF SAFETY CRITI- CAL PARTS”. Please contact your Komatsu distributor for replacement of critical parts. 24.7.14 CLEAN AIR DRYER FILTER AND DEFLECTOR (if equipped) Always clean once every 6 months regardless of the operating hours. 1. Remove bolt 3 , then remove cap 4 . 2. Disassemble deflector 1 and filter 2 and wash in diesel oil. 3-74