TM 9-2350-247-20-1
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS — Continued
0128 00
ITEM
NO.
INTERVAL
MAN-
HOUR
ITEM TO BE
CHECKED OR
SERVICED
CREWMEMBER
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE
IF:
73
Semi-
Annual
(M548A1)
0.5
Transfer
Gearcase Drain
a. Drain gearcase oil. Drain only when hot after
operation. Remove hull bottom access cover and
drain cover (WP 0383 00). Inspect oil being
drained for metal particles. If metal particles are
found, notify your supervisor.
Any metal
chips are
present or
Class III oil
leaks are
found.
b. Drain at least 15 minutes. Clean and install
drain cover (WP 0383 00)Fill gearcase with
approximately 2 1/2 quarts (2 liters) of OE/HDO
oil. Make sure gearcase filler cap is closed and
breather hole in gauge rod is open. Start engine
(see your –10) and operate for one minute. Stop
engine and check gearcase oil level. It should be
between the gauge rod’s FULL and ADD
marks. Install hull bottom access cover securely.
For lubricant information, see Table 6, page
0128 00-17 (WP 0383 00).
0128 00-85
