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2-13

SAL70200G2 (2.8/70-200 G SSM Ⅱ) (70-200mm F2.8 G SSM II)

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

1.  Overlay the flexible PWB as shown in the figure below and fix them with the polyester tapes (black) 4mm cut in the specified size.
2.  Apply the anti-diffusion agent (A-20) to the surrounding of tape.

Flexible PWB of MR Sensor Block

Flexible PWB of Stator

DV Encoder Flexible
PC Board

DV Encoder Flexible 
PC Board

Zoom Encoder Flexible

Zoom Encoder Flexible

Polyester Tape (Black)
4mm (4X15mm)

Apply the anti-diffusion
agent (A-20)

Front Holding Tube Block

Flexible PWB of
ultrasonic motor
(stator)

Flexible PWB of
MR sensor block

MR Sensor Holding Plate

Adhesive bond (B-10): J-6082-612-A

1.  Fix the brush holder to the front holding tube block with two screws and washers tentatively.

  Be careful not to bend the leads of brush.

2.  Set the focus to the infinity end.
3.  Adjust the brush holder so that the curved portion (contact with the flexible board) of A encoder brush comes to the circle portion (Part 

R) of DV encoder flexible PC board and tighten firmly two screws.

4.  After performing the  5-7-1. Focus Brush (A Encoder Brush) Position Adjustment , apply the adhesive bond (B-10) to the head of screw 

at two locations.

Brush Holder

DV Encoder Flexible 
PC Board

Part R of 
A encoder brush 

A Encoder Brush

Brush Holder

Screws Several pieces of washer 

(The number of washer used differs 
depending on the result of adjustment.)

A Encoder Brush

Set the focus to the infinity 
end position

Apply the 
adhesive bond
(B-10)

2-14

SAL70200G2 (2.8/70-200 G SSM Ⅱ) (70-200mm F2.8 G SSM II)

Adhesive bond (B-10): J-6082-612-A

1.  Set the focus to the near position.
2.  Assemble the MF detection brush block in the arrow direction as shown in the figure.

  Be careful not to bend the leads of brush.

3.  Move the focus ring by 10mm in the infinity direction.
4.  Slide the MF detection brush block and align the screw hole of MF detection brush block with the front holding barrel.
5.  Tighten two screws and apply the adhesive bond (B-10) to the indicated portions of screw heads.
6.  Adjust the position of flexible PWB, aligning the positioning hole of flexible PWB, and solder it.
7.  Route the harness as shown in the figure and solder it.

Assemble the MF detection
brush block in the arrow direction

Soldering
(Harness)

Harness
(Green)

Harness
(Black)

Apply the adhesive
bond (B-10)

Soldering
(Flexible PWB)

Move the focus ring by 10mm
in the infinity direction

Slide the MF detection brush
block and align the screw hole
of MF detection brush block

Anti-diffusion agent (A-20): J-6082-611-A
Grease (G-85): J-6082-626-A

1.  Apply the anti-diffusion agent (A-20) to the indicated portion of front holding tube block.

Front Holding Tube Block

Inner side of front holding tube

Cut 
view

Cut 
view

Apply the 
anti-diffusion 
agent (A-20)

Apply the 
anti-diffusion 
agent (A-20) 

Apply the 
anti-diffusion 
agent (A-20) 

Inside

3 mm

Outside

Apply the anti-diffusion agent (A-20)

2.  Apply the grease (G-85) to the indicated portion of front holding tube block

Cut 
view

Cut view

Front Holding Tube Block

Grease (G-85) 
applying area 

Grease (G-85) 
applying area 

Apply the 
grease (G-85)

Apply the 
grease (G-85) 

Inside

Outside

2-15

SAL70200G2 (2.8/70-200 G SSM Ⅱ) (70-200mm F2.8 G SSM II)

Adhesive bond (B-40): J-6082-614-A

1.  While drawing out the flexible PWB and harness of stator through the flexible PWB threading hole of front holding tube, install the 

front holding tube block.

2.  Apply two drops of adhesive bond (B-40) to the tips of eight screws and fix the front holding tube block with eight screws.

  Tighten four screws diagonally first and then the rest four screws diagonally.

Apply the 
adhesive bond (B-40)

Flexible PWB threading hole 
of front holding tube

Flexible PWB threading hole 
of front holding tube

Front Holding Tube Block 

Tighten four screws diagonally

Tighten the rest four 

screws diagonally

Flexible PWB and harness of stator

Flexible PWB and harness of stator

Adhesive bond (B-10): J-6082-612-A
Adhesive bond (LOCTITE 460)
Note:

  Use the adhesive bond (LOCTITE 460) or the equivalent.

 

Do not use the instant glue that becomes white when dried.

1.  Set the flexible substrate setting tape, FH flexible PC board and click plate to the front holding tube and fix them with washers and 

screws.

2.  Apply the adhesive bond (B-10) to the location indicated in the figure.

  If too much adhesive bond is applied, it flows in the gap in the click plate and FH flexible PC board and causes no conduction.

3.  Affix the FHB shielding tape as shown in the figure.
4.  Apply the adhesive bond (LOCTITE 460) to the indicated portion of front holding tube.
5.  Install the focus hold button and the focus hold button base and fix them with a scotch tape until the adhesive bond dries.

Flexible Substrate Setting Tape

FH Flexible PC Board

Front Holding 
Tube

Click Plate

Click Plate

Screw

Washer

Washer

Affix the 
FHB shielding tape

Apply the 
adhesive bond
(LOCTITE 460)

Focus Hold 
Button Base

Focus Hold Button, 
Focus Hold Button Base

Focus Hold 
Button

Scotch tape,
etc. 

Scotch tape, 
etc.

Apply the 
adhesive 
bond (B-10)

2-16

SAL70200G2 (2.8/70-200 G SSM Ⅱ) (70-200mm F2.8 G SSM II)

1.  Affix the FH flexible setting tape and MR sensor setting tape to the indicated portion of FH flexible PC board.
2.  Affix the FH flexible setting tape to the indicated portion of front holding tube.
3.  Affix the FH flexible PC board to the front holding tube, referring to the affixing reference.

FH Flexible Setting Tape

FH Flexible Setting Tape

FH Flexible PC board

Align the edges 
with the stair.

Front Holding Tube

Front Holding Tube

MR Sensor Setting Tape

FH Flexible PC board

1.  Affix the DV encoder flexible PC board to the front holding barrel along the affixing reference as shown in the figure below.

Front Holding 
Barrel

Front Holding 
Barrel

DV Encoder Flexible 
PC Board

DV Encoder Flexible 
PC Board

DV Encoder Flexible 
PC Board

Align the leading edge flexible 
board with the corner crossed 
by two arrow lines.

Do not peel off the detached 
sheet on the flexible board at 
the upper side above the line 
at this moment. 

Affix the flexible board,
leaving the curve at four corners.