Sony MPK-NA Owner's manual

2-674-692-01 (1)

2006 Sony Corporation Printed in Japan

O

O-ring Maintenance Manual

Manual d’entretien du joint torique

O-Ring -Wartungsanleitung

Manuale di manutenzione della guarnizione toroidale

O-ring Onderhoudshandleiding

Manual de mantenimiento de la junta tórica

Manual de manutenção do anel de vedação

Underhållsanvisning för O-ring

Руководство по техническому обслуживанию уплотнительного кольца

O

O링의 보수 설명서

CS

CT

RU

SE

PT

ES

NL

IT

DE

FR

GB

JP

KR

Marine Pack

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1-GB

English

* The Marine Pack you are using may not necessarily be the one in the

illustrations.

What is the O-ring?

The O-ring ensures the waterproof qualities of the Marine Pack or other

equipment.

O-ring maintenance is very important. Failure to

carry out O-ring maintenance according to the

instructions may lead to water leakage and cause

the Marine Pack to sink.

O-ring

2-GB

Handling the O-ring

Fit the O-ring

Avoid fitting the O-ring in dusty or sandy locations.

1 Remove the O-ring.

To remove the O-ring, press it lightly and slide it in the direction of the

arrow as illustrated. The O-ring has enough slack to be able to be removed

easily. Be careful not to scratch the O-ring with your fingernail.

2 Inspect the O-ring.

• Check carefully for the following. If found, wipe off with a soft cloth or

tissue paper.

– Is there any dirt, sand, hair, dust, salt, thread scraps, etc. on the O-ring?

– Is there any old grease on the O-ring?

• Lightly run your fingertip around the O-ring to check for any invisible

dirt.

• Be careful not to leave any cloth or tissue paper fibers on the O-ring after

wiping it.

• Check the O-ring for cracks, skewing, distortion, fine splitting, scratches,

sand inclusion, etc. Replace the O-ring if it is cracked or scratched.

v Dirt v Sand v Hair v Dust v Salt

v Thread

scraps

v Cracks

v

Skewing

v

Distortion

v Fine

Splitting

v Scratches

v Sand

inclusion

O-ring

3-GB

3 Inspect the O-ring groove.

Carefully remove any grains of sand or hardened salt that get into the

groove.

4 Inspect the contact surface on the other side of the O-ring in

the same way.

5 Apply the special grease supplied to the O-ring.

• Use your fingertips to thinly coat the entire surface of the O-ring with a

small drop of grease, as illustrated above.

• Make sure there is always a thin coating of grease on the surface of the

O-ring. Grease protects the O-ring and prevents wear.

Grease

Only use the grease supplied. Other kinds of grease will damage the O-

ring and cause water leakage.

6 Fit the O-ring into the groove of the Marine Pack.

Fit the O-ring evenly into the groove paying attention to the following

points:

– Check for dirt on the O-ring.

– Check the O-ring is not twisted or protruding.

– Do not pull the O-ring.

Bad example Good example

4-GB

Handling the O-ring (continued)

Final check

Check the O-ring again for any dirt, cracks or twisting, etc.

How to check for water leakage

Before installing the equipment, always close the marine pack and

immerse it in water to a depth of about 15 cm for about three minutes to

make sure no water leaks in.

PCAUTION

After taking photos near a sandy sea bottom or placing the camera on the

sand, remove the O-ring and inspect it.

Be sure to take a spare O-ring with you.

You can replace the fitted O-ring on location if

something goes wrong with it.

O-ring life

Replace each O-ring with a new one after one year of use.

Even if the O-ring is not cracked or scratched, deformation or wear

reduces its waterproof qualities.

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Printed in Japan

100 VOC (

)

Printed on 100% recycled paper using VOC (Volatile

Organic Compound)-free vegetable oil based ink.

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AR

Marine Pack

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