TM 55-1945-205-24-4 0050 00 3/4 blank 0050 00 END OF WORK PACKAGE 3 50 Operating Hours .2 Light Tower Engine (Cont’d) 2. After the first 50 hours of operation, replace the engine oil filter. (WP 0163 00) 3 100 Operating Hours .5 Light Tower Engine Remove and clean air filter element. (WP 0172 00) 3 200 Operating Hours .5 Light Tower Engine Change engine oil. (WP 0162 00) 3 250 Operating Hours .3 Light Tower Engine Repack wheel bearings and replace grease seals. (WP 0191 00) 3 400 Operating Hours .3 Light Tower Engine 1. Replace engine oil filter. (WP 0163 00) 2. Replace engine fuel filter. (WP 0165 00) 3 500 Operating Hours 3.0 Light Tower Engine 1. Drain cooling system, flush cooling system and install new coolant. (WP 0175 00, WP 0176 00) 2. Replace fan belt.  (WP 0180 00) Table 1.  Preventive Maintenance Checks and Services. (Continued) ITEM NO. INTERVAL MAN- HOURS ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: