TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 400 of 596

TM 9-2815-205-34

3-58. ENGINE/TRANSMISSION OIL COOLER REPAIR (MODELS 5063-5393, AND 5063-539L)

(2)

(c)

(d)

Submerge oil cooler assembly in a

container of water heated to 180°F

(82°C). Air bubbles in the water

indicate leaks. Replace oil cooler if it

leaks.

Release air pressure on cooler

assembly. Remove steel plate (17),

rubber gasket (16), and hose from oil

cooler (14).

Compressed air used for cleaning purposes will not exceed 30 PSI. Use only with

effective chip guarding and personal protective equipment (goggles/shield,

gloves, etc.)

(e) Dry oil cooler with compressed air.

Transmission oil cooler

CAUTION

Do not use 1 1/4 NPT reducer

bushing or pipe plug in oil cooler

ports. Oil cooler ports are not ta-

pered and damage will result.

(a)

(b)

(c)

(d)

Install fabricated machine thread plug

(15) in one port and standard machine

thread plug (18) in other port of oil

cooler (9).

Connect air line to fabricated machine

thread plug (15) and pressurize oil

cooler to 75 PSI (517 kPa).

Submerge transmission oil cooler in a

container of water heated to 180°F

(82°C). Leaks will be indicated by air

bubbles in the tubes. Replace oil

cooler if it leaks.

Release air pressure and remove

plug, air line, and reducer bushing.

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