PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS Continued
ITEM TO BE
a. Differential oil every 150 hours, 1500 miles
(2414 km), or semi-annually. Drain only when
hot after operation. To drain, remove front hull
bottom access cover and drain cover
(WP 0337 00). Inspect drain cover and oil for
metallic particles. If metal chips are found,
notify your supervisor.
Class III oil
b. Clean and install drain cover (WP 0383 00)
Remove gauge rod from housing and add OE/
HDO oil (approximately 18 quarts) (17 liters).
Check oil level and install gauge rod.