TM-9-2350-277-20-2 Unit Maintenance Manual Volume 2 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0155 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED C R E W M E M B E R PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: NOTE Drain oil only when hot after operation. b. Drain gearbox every 150 hours/1500 miles or semiannually. 1) Place a suitable container under fan gearbox drain. 2) Remove screw and washer from gearbox housing and drain oil into container (WP 0248 00). Discard packing. 3) Inspect screw, washer and oil for metallic particles and foreign matter. If metal chips are found, notify your supervisor. 4) Lubricate new performed packing with OE/ HDO prior to installing. 5) Install screw and washer in gearbox housing (WP 0248 00). Tighten screw. Do NOT over tighten. 6) Fill gearbox with enough OE/HDO oil to bring the level to center of sight glass. See Fan Gearbox Lubrication Table (Table 5, page 0155 00-20). 0155 00-98 Change 3 61 b. To prevent engine from starting, pull fuel cutoff out (see your -10). Semi- Annual a. Disconnect lead from fuel shutoff solenoid (WP 0205 00). Operate Air Box Heater Air Pump NOTE The purpose of the item is to exercise the vanes in the air box heater air pump.