Nikon AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF) Betriebsanleitung

作成承認印配布許可印

JAA80251-R.3723.A

JAA80251

Printed in Japan November 2007

AF-S Zoom-Nikkor ED

24-70mm/F2.8G(IF)

REPAIR MANUAL

Ｍ

サービス

計画課

INC

JAA80251-R.3723.A

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When disassembling/(re)assembling, be sure to use the conductive mat (J5033) and wrist strap

(J5033-5) for static protection of electrical parts.

When disassembling, make sure to memorize the processing state of wires, screws to be xed and

their types, etc.

When FPCs are connected to PCBs, etc, put the FPCs in connectors, etc, straightforward so that they

are all the way seated.

Because prototypes are used for "Disassembly/(Re)assembly/Adjustment", they may differ from the

actual products in forms, etc.

Because pictures are processed by a special method, they may differ from the actual ones in texture.

This lens will need the optical lens-alignment work in case of performing the below work.

Therefore, after the work, adjust optical lens-alignment at service facilities where such work can

be carried out.

Disassembly of 1-1 lens group unit, 4th lens group unit

Replacement of 1-1 lens group unit, 1-2 lens group unit, 3rd lens group unit, 4th lens group unit,

1st lens-G lead ring, helicoid tube unit

󳉗

　・Lead-free solder is used for this product.

　・For soldering work, the special solder and soldering iron are required.

　・Do NOT mix up lead-free solder with traditional solder.

　・Use the special soldering iron respectively for lead-free solder and lead

solder.

They cannot be used in common.

　Points to notice for Lead-free solder products

※Before Disassembly / Reassembly / Adjustment

INC

JAA80251-R.3723.A

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1. Disassembly

Filter ring

Remove the sheet.

Take out the two screws (#63) and the screw (#79), and remove the lter ring.

󳉗

Sheet

Filter ring

#63×2

#79󲥵Shoulder screw󲥶

INC

JAA80251-R.3723.A

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1st lens-G unit

Take out the two screws (#50) and the screw (#61), and remove the 1st lens-G unit.

󳉗

G1 lens

#50×2

#61 (Countersunk screw)

G2, G3 lens

1st lens group

Caution: If the G1 lens is removed, the lens alignment work will be necessary.

#76

#77

Adjustment washer (A-I)

#72×3

INC

JAA80251-R.3723.A

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Rubber ring

Remove the zoom rubber ring.

Remove the focus rubber ring.

󳉗

Bayonet side

Rubber ring

Sloped

Zoom ring

Cross-section view of Focus ring/Zoom ring

Focus rubber ring

Zoom rubber ring

Sheet

Remove the sheet (#163).

󳉗

#163

G4 lens is the hybrid aspheric lens.

R1-surface of G4 lens is plastic surface, so dip a wiping cloth (Savina Minimax) a little in

ethanol, and wipe the surface lightly. If dust/dirt is attached, blow them away with a blower as

much as possible.

G4 lens

INC

JAA80251-R.3723.A

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Tape

Peel off the four pieces of the tape (#193) of - , and remove the two cover plates (#194).

󳉗

Zoom brush

M/A brush

#194

#193

INC

JAA80251-R.3723.A

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Take out the three screws (#182) of the 5th lens group.

Take out the two screws (#180) of the contacts unit.

󳉗

#180×2

Zoom brush

#96

Take out the screw (#96), and remove the zoom brush.

󳉗

Zoom brush

M/A brush

Take out the screw (#100), and remove the M/A brush.

󳉗

5th lens group

M/A brush

#100

#182×3

Caution: For [#182], a thicker screw (1K010-343) may be used to t with the larger screw hole caused

by adjustments. So check the screw diameter. [#182] has M1.4-diameter, while [1K010-343]

has M1.7-diameter.

5th lens Group

󲥵Thicker screws may be used.󲥶

INC

JAA80251-R.3723.A

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#78

Blade actuating plate spring

#172×4

Bayonet mount unit

Take out the four screws (#172).

Remove the bayonet mount unit.

Remove the Bf adjustment washer (#78).

Caution: Handle the blade actuating plate spring with care, because it can be easily deformed.

󳉗

Bayonet mount unit

INC

JAA80251-R.3723.A

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Remove the 4th lens group.

󳉗

4th lens group

#81×3

4th lens group

Washer

Caution: Removing the 4th lens group needs the lens alignment work.

󲥵with being light-shielding tape attached󲥶

The hybrid aspheric lens is used for the bayonet side of the 4th lens group.

If dust/dirt is attached, blow them away with a blower as much as possible.

If such dust/dirt can not be removed, dip a wiping cloth (Savina Minimax) a little in ethanol,

and wipe the surface lightly.

INC

JAA80251-R.3723.A

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3rd lens group

Remove the 3rd lens group with [J11346].

󳉗

J11346

3rd lens group

Washer

INC

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