Nikon AF-S DX NIKKOR 18–55mm Repair manual

5 (1)

JAA79201-R.3669.A

AF-S DX Nikkor ED

18-55/3.5-5.6G

JAA79201

JAA79251

Silver

Black

REPAIR MANUAL

Copyrigh 2005 by Nikon Corporation. All Rights Reserved.

!!

Printed in Japan May 2005

 

JAA79251-R.3669.A

Specifications

 

Type of lens:

G-type AF-S DX Zoom-Nikkor lens with built-in CPU and Nikon bayonet

 

mount (Specially designed for use with Nikon digital SLR – Nikon DX

 

format – cameras)

Focal length:

18mm–55mm

Maximum aperture:

f/3.5–5.6

Lens construction:

7 elements in 5 groups (1 ED and 1 aspherical lens elements)

Picture angle:

76° – 28°50´

Focal length scale:

18, 24, 35, 45, 55mm

Distance information: Output to camera body

Zoom control:

Manually via separate zoom ring

Focusing:

Autofocus using a Silent Wave Motor; manually via separate focus ring

Closest focus distance: 0.28m (0.9 ft.) at all zoom settings

Diaphragm:

Fully automatic

Aperture range:

f/3.5 to f/22 (at 18mm), f/5.6 to f/38 (at 55mm)

Exposure measurement:Via full-aperture method

Attachment size:

52mm (P = 0.75mm)

Dimensions:

Approx. 69mm dia. x 74mm extension from the camera’s lens-mount flange

Weight:

Approx. 210g (7.4 oz)

Specifications and designs are subject to change without any notice or obligation on the part

- M1 AF-S DX 18-55/3.5-5.6G -

Disassembly / Assembly / Adjustment

JAA79201-R.3669.A

Note:

When disassembling, make sure to memorize the processing state of wires and FPC. 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.

Points

to notice for Lead-free solder products

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.

1. Disassembly

Company name ring

The company name ring (#113) is attached with the both-sided adhesive tape.

#113

Name plate

#68

Note: Detaching the name plate (#68) is NOT necessary EXCEPT replacing it.

- 1 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Rear cover ringTake out 3 screws (#91) to remove the rear cover ring (#39).

#39

#B27 #91×3

Rubber ringRemove the rubber ring (#62).

#62

- 2 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

1st lens group

#111×4

#B1

#100A I×n

#52

Distance brush hole-sealing plate

Polyester tape

#103

Removal of Contact unitTake out 2 screws (#67) of the contact unit (#B6) that is attached to the bayonet mount unit (#B27).

#B6

#B27

#67×2

- 3 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Removal of M/A change-SW unit

Take out the screw (#155) to remove the M/A change-SW unit(#B22).

#B22

#155

Bayonet mount unitTake out 3 screws (#78) of the bayonet mount unit (#B27) to remove the lead wire (#1131).

#78×3

#1131

#B27

Remove the solder.

- 4 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Washer

Remove the washers #101A J×n).

#101A J×n

#1131

Flare cutter

Release the key part of the flare cutter (#46) from the key-groove of the cam tube, then remove the flare cutter.

Key part

Release the key part from the key-groove.

Set the zoom position to WIDE-end. While pressing the pointed tip of the key inward,

remove the key by turning clockwise.

#46

#B24

Key-groove of Cam tube

- 5 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Straight key unit

#86×2

#86×2

 

#B25B

#B25A

2nd lens group

#B24

- 6 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Rear fixed tube

Set the M/A change-SW unit (#B22) to A mode. Detach it from the window of the rear fixed tube (#57) and remove the rear fixed tube.

#57

Note: Do NOT touch "A" part directly with hand. A

#B22 Removal of FPC from Main-PCB unit

Remove the SWM unit (#B501) from the main-PCB unit (#B1001).

#B1001

#B501

Remove the contact unit (#B6) and MR unit (#B7) from the connector of the main-PCB unit (#B1001).

#B7

#B6

#B1001

- 7 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Remove the zoom/distance FPC from the connector of the main-PCB unit (#B1001).

Zoom/distance FPC

#B1001

Main PCB unitRemove the main-PCB unit (#B1001).

#89 #89

#B1001

#89

Remove the lead wire (#1131) from the main-PCB unit (#B1001).

#1131

Hole

Remove the solder.

 

- 8 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

M/A change-SW unit

Remove 2 lead wires of the M/A change-SW unit (#B22) from the main PCB unit (#B1001).

#B1001

#B22

Black

Remove the solder.

Red

Contact unit

Remove the contact unit (#B6).

#B6

Zoom brush unit

#89

Zoom brush unit

#B8

#52

- 9 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Filter ring unit

Remove the polyester tape (#77) from the zoom ring (#52).

Zoom cover ring

#77

#52

While releasing the engagements of 2 keys of the focus ring, turn the filter ring unit (#B20) in the direction of the arrow to remove it.

Zoom ring

Key of focus ring

Helicoid ring

B20

- 10 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Zoom ring

Take out 2 screws (#102) that attach the zoom ring (#52).

#102×2

#52

Detach the zoom ring (#52) from the fixed tube unit.

#52

Fixed tube unit

- 11 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Fixed tube unit

Silicon rubber

Remove 2 silicon rubbers (#56) from the square grooves of the fixed tube.

#56

#56

MR unit

Remove the MR unit (#B7) from the fixed tube.

#B7

Remove the FPC of the MR unit from the fixed tube.

#72

#72

- 12 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

SWM unit

Remove the SWM unit (#B501) from the fixed tube.

#132

Note: Do NOT touch "A" part directly with hand. A

#B501

#131

Fixed tube

Gear

Gear

#B501

A

Do NOT touch "A" part.

- 13 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

2.Assembly /Adjustment

Fixed tube unit

Cam tube unit (Helicoid ring, Cam ring)

Align the cam ring (3 grooves between convex portions on the outer diameter surface) with the helicoid ring (3 convex cams on the inner diameter surface) and assemble the rings by turning them.

Convex portion on the outer diameter surface

After assembling

Cam ring

Helicoid ring

Note:

 

The cam ring and helicoid ring are

NOT prepared as single part of RP.

Cam tube unit / Fixed tube

With the cam tube unit (3 outer convex portions) being at the full up WIDE position, assemble the fixed tube (3 inner grooves between cams).

Outer convex portion

Cam tube unit

Groove between inner cams

Fixed tube

- 1 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

SWM unit

Assemble the gear (#513) into the SWM unit (#B501 .

Grease: MZ-800S

#513

#B501

DoNOT touch "A" part.

Assemble the SWM unit into the fixed tube.

#132

Note: Do NOT touch "A" part.

Clutch gear

#131

Segment gear tube

MF ring

Raise the clutch gear with tweezers, and check the engagement of the segment gear tube and the ear (#513) by turning the MF ring.

Raise the clutch gear with tweezers, and check it moves back downwards smoothly.

- 2 AF-S 18-55/3.5-5.6G -

Nikon AF-S DX NIKKOR 18–55mm Repair manual

JAA79201-R.3669.A

MR unit

Assemble the MR unit (#B7) into the fixed tube.

 

 

 

#B7

 

 

 

 

 

 

 

 

Attach the FPC of the MR unit on the fixed tube,

#72

 

 

 

 

and press it with fingers.

 

 

 

 

 

 

 

 

 

 

#72

Put the silicon rubbers (#56) into 2 square grooves of the fixed tube, and press them (with fingers).

Square groove×2

Adhesive:Screwlock

#56

#56

- 3 AF-S 18-55/3.5-5.6G -

JAA79201-R.3669.A

Zoom ring

Align 2 notches of the fixed tube with 2 convex portions of the zoom ring (#52) to assemble them. Then turn the zoom ring, and fit 2 convex portions of the cam ring into 2 holes of the zoom ring.

Convex portion

#52

Apply to the sliding part of the inner diameter surface.

Grease: MZ-800S

Notch

Convex portion of cam ring

Fixed tube unit

Fix the zoom ring (#52) with 2 screws (#102), and check the smoothness of the zoom ring’s movement.

#102×2

#52

- 4 AF-S 18-55/3.5-5.6G -

Filter ring unit

Turn the zoom ring in the direction of the arrow (TELE-side).

While lifting the clutch gear, turn the key of the focus ring all the way in the direction of the arrow.

Align the reference line of the filter ring unit (#B20) with “A” part of the helicoid ring, and turn the filter ring until it clicks.

SWM unit

-mark

JAA79201-R.3669.A

Zoom ring Key of Focus ring

Reference line

Helicoid ring

Grease: MZ-800S

Apply to the sliding part of the outer diameter surface.

B20

Inspection and adjustment of output waveform of MR encoder

Attachment diagram

Self-made tool that is created with the main PCB ofAF-S 24-85

Oscilloscope (2ch)

 

Set value

Oscilloscope (1ch)

 

5.0 V

Rated voltage power-supply (+)

GND

100 mA

Rated voltage power-supply (-)

 

 

 

Rated voltage power-supply

Self-made tool

Oscilloscope (2ch type)

- 5 AF-S 18-55/3.5-5.6G -

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