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2-1

SAL70400G (4-5.6/70-400 G SSM) (70-400mm F4-5.6 G SSM)

Cut and remove the part of gilt 
which comes off at the point.
(Be careful or some 
pieces of gilt may be left inside) 

• Make sure that the flat cable and flexible board are not cracked of bent at the terminal.

Do not insert the cable insufficiently nor crookedly.

• When remove a connector, don’t pull at wire of connector. It is possible that a wire is snapped.

• When installing a connector, don’t press down at wire of connector.

It is possible that a wire is snapped.

• Do not apply excessive load to the gilded flexible board.

In case of the following notches or holes are located in the lens block, etc during disassembling/
assembling the lens, Use the universal wrench.

Attach the chip-A or chip-B to the universal wrench.
For the notches: chip-A
For the holes:

chip-B

Match the universal wrench to the holes or notches of the lens block, etc.

Notches

Holes

Universal wrench
J-6082-609-A

Chip-A for 
universal wrench:
J-6082-609-1

Chip-B for 
universal wrench:
J-6082-609-2

A-20

B-10

Anti-diffusion agent (A-20): J-6082-611-A

G-62

G-85

G-116

Grease (G-62):

J-6082-670-A

G-48

Grease (G-48):

J-6082-669-A

Grease (G-85):

J-6082-626-A

Grease (G-116):

J-6082-628-A

B-40

Adhesive bond (B-40):

J-6082-614-A

Adhesive bond (B-10):

J-6082-612-A

Notches

Chip-A

Chip-A

Chip-B

Chip-B

Chip

Fixed screw

Fixed screw

Chip

Match the universal wrench 
to the width of holes or notches.

Universal wrench

Holes

SAL70400G (4-5.6/70-400 G SSM) (70-400mm F4-5.6 G SSM)

2-2

2

2

1

1

4

4

3

3

2

2

3

3

4

4

5

5

6

6

1

1

7

7

8

8

9

9

q;

q;

qa

qa

Note 1:
This lens can disassemble both the
1st lens side and the mount side. 

5

5

8

9

8

1

2

3

2

9

q;

7

7

6

6

Here, the procedure to remove the whole Middle 
Barrel Block is described.
However, in the state that the Middle Barrel Block 
is installed to the unit, an individual part in the block 
can be removed.

4

5

Install the Focus Rubber, 
facing its projection 
side to the eye-piece.

B-10

B-10

B-40

In the state that the unit is set to 
the TELE end, remove it and install it.

G-85

B-10

B-10

B-10

B-10

G-62

B-10

B-10

G-48

B-10

B-10

A-20

B-10

G-85

G-48

G-116

G-116

Decoration Barrel

Filter Screw Frame

Decoration Barrel

2-1-1

2-1-2

2-1-3

1st Lens Assy

1st Tilt Adjustment
Washer

1st Adjustment Washer

Back Adjustment
Washer

Mount Assy

Preset Lever

Signal
Board

Rear Light
Shield Barrel

Tripod Assy

Main Spring 2

Rear Barrel Assy

Main PC Board Assy

Fixed Barrel Assy

Stator (Stator Set)

Nylon Sheet

Resin Ring

Fine Same

Pressurizing Plate

Wave Washer

SSM Retainer
Plate

Bayonet
Screw

Stopper

Middle Barrel Assy

Middle Barrel
Block

Flexible Guide

Rotor (Stator Set)

MF Linkage Barrel B 

Rotary Barrel Assy

AF Linkage Barrel B

Rubber Barrel

MR Sensor Assy

PI Film Tape (No.5413)14x33m
(7x30mm)

Focus Scale Ring Assy

Focus Brush

Main Spring Guide

Focus Rubber

Focus Ring

Function Lever

The changed portions from
Ver. 1.1 are shown in blue.

SAL70400G (4-5.6/70-400 G SSM) (70-400mm F4-5.6 G SSM)

2-3

4

3

5

6

7

8

2

1

qf

1

2

1

3

3

6

6

6

7

7

7

8

q;

qa

q;

q;

8

8

4

9

5

4

4

3

1

qs

qd

G-48

B-10

B-10

B-40

G-116

B-10

B-10

G-116

Outer Barrel Assy

Zoom Linkage Barrel

Zoom Ring Assy

Zoom Brushcover

Zoom Brush

Zoom Rubber

1st Slip Barrel

3rd Cam Barrel

Light Shield
Sheet

2nd Decoration
Sheet

6th Tilt Washer

6th Adjustment
Washer

2-6th Assy

Straight Barrel

Selection Switch Assy

2-1-4

2-1-5

SAL70400G (4-5.6/70-400 G SSM) (70-400mm F4-5.6 G SSM)

Note for assembling and grease applying positions are shown.

Adhesive Bond (B-10): J-6082-612-A

1.

Apply the adhesive bond (B-10) 50º range wide to the surface against screwing position of the decoration barrel.

2.

Tighten the decoration barrel as far it goes and turn back by one turn to align the positions of screw holes.

Tighten the 1st slip barrel so that the end surface of eye-piece side of decoration barrel mates flatly to the flat portion of 1st slip

barrel.

3.

Tighten one screw.

Decoration Barrel

50

50

Apply the adhesive 
bond (B-10)

5

1

 Tighten as far as it goes.

3

Decoration Barrel

1st Slip Barrel

Decoration Barrel

2

 Turn back by about one turn.

Align the positions
of screw holes.

Adjust so that the end surface of eye-piece side 
mates to the flat portion of 1st slip barrel.

End surface of 
eye-piece lens side

Flat portion