PRESERVATION AND PACKING (Cont)

TM 43-0156

Step

Function

Mech

Insp

(b)

Disconnect the oil line just prior to the manual

cont

lube pump and connect to a supply of MIL-L-21260,

type I, grade 30 preservative oil.

(c)

Pump the manual prelube pump until preservative

oil is observed coming from the camshaft bearings

1 and 7 located on the top of the engine toward

the radiator end.

(d)

Turn the engine over at least two full revolutions

while preservative oil is being pumped through the

oil system.

(e)

Connect the oil line back to the lube pump from

where it was removed.

(f)

Open oil filter containers and remove the oil

filters.

(g)

Atomize spray the oil filter containers with

MIL-L-21260, type I, grade 30 preservative oil.

(h)

Replace the filters. Close and secure the

containers.

(1)

Connect a portable pump to the piston cooling pump

output.

(j)

Pump MIL-L-21260, type I, grade 30 preservative

oil through the system.

(k)

Open access covers to the crankcase to observe

when the preservative oil starts coming from the

piston cooling tubes.

(1)

Turn the engine over two full revolutions while

pumping preservative oil.

(m)

Disconnect the portable pump.

(n)

Open the access covers to the crankcase and

atomize spray the underside of the pistons and

rods.

(o)

Close and secure the access covers.

(p)

Allow time for the engine to drain (approx 20

min). Completely drain the crankcase of any oil

that may have accumulated.

B-1-4