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2-2

SAL1650 (DT 16-50 / F2.8) (DT 16-50mm F2.8 SSM)

D

C

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B

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B-10

B-10

B-10

G-85

NCPOP2B

G-48

G-48

G-116

G-36

G-85

FT-210

G-48

FT-210

FT-210

A-20

B-40

B-40

B-40

B-40

B-110

B-10

B-40

B-40

B-40

B-40

B-10

Adhesive bond 
(LOCTITE 460) or 
the equivalent.

1st Group Retainer

1st Group Assy

1st Group Adjustment Washer

Sinnabar Ring

FB Adjustment Washer

Mount Assy

Rear Light Shield Barrel

Signal Board

Main PC Board Assy

Ground PC Board

objective
side

Cut view of Zoom Rubber

Zoom Rubber

Zoom Coma Cover

Zoom Ring Assy

Focus Brush

Outer Barrel Assy

Brake Sheet

Brake Rubber

Zoom Joint Plate

Focus Rubber

Middle Barrel Assy

Stopper

Stopper

G4 Mask

2nd Group Assy

2nd Group Adjustment Washer

1st Group Slip Assy

2nd Group Slip Assy

Cam Tube Assy

3rd Group Slip Assy

3rd Group Assy

4th Group Assy

G16 Mask

4 Group Adjustment Washer

Stopper

AF Linkage Barrel

Rubber Tube

MF Linkage Barrel

Rotary Barrel Assy

Switch Assy

Chip (Mount Index)

Stator
(SSM Assy)

Rotor
(SSM Assy)

Nylon Sheet

Resin Ring

Rubber Pressure Plate

Pressurizing Plate

SSM Wave Washer

SSM Retainer Plate

Fine Same

Note 1:
This lens can be disassembled from both directions of 
1 group lens side and mount side. 

Note 2: Install the zoom rubber so that the
chamfering side to the object side.

Note 3:
When removing the outer barrel assy out of the middle 
barrel assy, separate preliminarily the MR sensor 
flexible assy from the outer barrel assy, unscrewing 
2 screws. 

2-3

Note for assembling and grease applying positions are shown.

SAL1650 (DT 16-50 / F2.8) (DT 16-50mm F2.8 SSM)

Bond (B-10) : J-6082-612-A

1.  Install the 1st group adjustment washer.
2.  Install the 1st group assy, aligning the round mark on the back side of 1st group assy with the index on the unit.
3.  Apply a half drop (a bit) of adhesive bond (B-10) to the lowermost step of screw portion of front barrel assy block at two locations and 

tighten the name ring.

Apply the bond (B-10)

Index mark

Index mark

Circle mark

Circle mark

Index mark

1st Group Retainer

1st Group Retainer

1st Group Assy

1st Group Adjustment Washer

1st Group Slip Assy

1st Group Slip Assy

Grease (G-85): J-6082-626-A

1.   Apply the grease (G-85) to the indicated portion of mount assy block. 

Mount Assy

Mount Assy (Cross section)

Outer side

Entrance side

Back side of claw (3 locations)
(Entrance side)

Entrance side

Entrance side

Inner side

Apply the grease (G-85)

Apply the grease
(G-85)

Grease (G-36): J-6082-667-A
Grease (NCPOP2B): 7-640-016-79

1.  Apply the grease (NCPOP2B) to the indicated portion (trace side) of encoder flexible. 
2.  Apply the grease (G-36) to the indicated portion.

Outer Barrel Assy

Encoder Flexible Board

Apply the grease (G-35)
(all circumferences)

Apply the grease (NCPOP2B)

2-4

SAL1650 (DT 16-50 / F2.8) (DT 16-50mm F2.8 SSM)

Anti-diffusion agent (A-20): J-6082-611-A
Bond (B-40): J-6082-614-A
Grease (G-48): J-6082-669-A

1.  Apply the anti-diffusion agent (A-20) and grease (G-48) to the indicated portions of zoom ring assy. 

Apply the grease
(G-48)

Apply the grease
(G-48)

Zoom Ring Assy

Apply the anti-diffusion 
agent (A-20)

2.  Install the zoom ring assy to the unit. 

  Set the zoom joint plate to the WIDE end. 

  Insert the setscrew of potentiometer in the groove of zoom ring assy. 

3.  Engage the bayonet with the zoom ring assy by rotating the zoom ring assy in the arrow direction.
4.  Align the zoom joint plate with the hole of zoom ring assy and tighten two screws. 

  Apply 2 drops of adhesive bond (B-40) to the tips of screws. 

Zoom Ring Assy

Zoom Ring Assy

Bayonets

Groove of the Zoom Ring Assy

Insert the coma of potentiometer to
the groove of the Zoom Ring Assy.

Coma of the potentiometer

Set the Zoom Joint Plate
to the WIDE end.

Zoom Joint Plate

Apply the bond
(B-40)

Bond (B-40): J-6082-614-A
Grease (G-116): J-6082-628-A

1.  Apply the grease (G-116) to the indicated portion of F linkage key.
2.  Install the outer barrel block and middle barrel block to the optical block. 

  Combine the F linkage key with the F linkage coma.

  Combine the zoom stopper with the zoom joint plate.

3.  Tighten 3 screws. 

  Apply 2 drops of adhesive bond (B-40) to the tips of screws. 

Apply the grease
(G-116)

Apply the bond
(B-40)

F Linkage Key

F Linkage Key

F Linkage Key

F Linkage Coma

F Linkage Coma

Zoom Stopper

Optical Block

Zoom Joint Plate

Outer Barrel Block, 
Middle Barrel Block

2-5

SAL1650 (DT 16-50 / F2.8) (DT 16-50mm F2.8 SSM)

Grease (FT-210): 7-640-018-91

1.  Apply the grease (FT-210) to the indicated portion of AF linkage ring. 

Apply the grease
(G-116)

AF Linkage Barrel

Grease (G-85): J-6082-626-A
Grease (FT-210): 7-640-018-91

1.  Apply the grease (G-85) and the grease (FT-210) to the indicated portion of rotary barrel assy.

Apply the grease
(FT-210)

Apply the grease (G-85)
(all circumferences)

Rotary Barrel Assy

Rotary Barrel Assy

Grease (G-48): J-6082-669-A
Grease (FT-210): 7-640-018-91

1.  Apply the grease (G-48) and the grease (FT-210) to the indicated portion of AF linkage ring.

Apply the grease (FT-210)
(all circumferences)

Apply the grease (G-48)
(all circumferences)

MF Linkage Barrel

Bond (B-10) : J-6082-612-A

1.  Install the rotor (SSM assembly) and 3 pieces of stopper pin. 
2.  Install the stator (SSM assembly), nylon sheet, resin ring, fine same, rubber pressure plate, pressure plate and SSM wave washer 
3.  Tighten 3 bayonet screws and apply the adhesive bond (B-10) to the screw heads (3 locations). 

  Never touch the slip surface of stator (SSM assembly) and resin surface (black coated surface) of rotor (stator set). 

  When installing the stator (SSM assembly), place the flexible board (stator) and flexible board (relay board) as shown in the 

figure. 

  Install the resin ring, facing the concave side up and the convex side down. 

  Install the SSM wave washer and pressure plate, facing their concave sides down and their convex sides up.

  Be careful for their valley folds not to overlay on the flexible board (stator).

AF Linkage
Barrel

Rubber Tube

Stator
(SSM Assy)

Nylon Sheet

Resin Ring

Resin Ring

Convex Side

Convex Side

Concave Side

Concave Side

Never touch the slip surface of
Stator (SSM Assy) and
resin surface of Rotor (SSM Assy)
(black coated surface)

Rubber Pressure
Plate

Pressurizing Plate

SSM Wave Washer

SSM Wave Washer

Mountain Part

Valley Part

Flexible Board (Stator)

SSM Wave Washer,
Pressurizing Plate

Bayonet
Screws

Stopper

Stopper

Stopper

Stopper

Fine Sames

Rotor
(SSM Assy)

Flexible Board
(Stator)

Cutout of the Middle Barrel Assy

NG

OK

Apply the bond (B-40)