Before Assembly

 - Please to read "How to work with 3D printed parts" and to clean and trim parts.

 - Few procedures are the same to 16004, so picture for 16004 may used )

 Gun Recoil

Bolt A3 and disk shape servo horn with 4*MA5 screws

 Remove gun and mantlet from Tank

Bolt A4 and A5 with MA2 screw, don't bolt them too tight, will need to tune later

Fit  servo to A5, use Tapping screw in servo bag

Smooth surface of gun barrel extension A1 till it can move smoothly in A5

Blot gear rock A2 to A1 with 4*MA1 screw

bolt mantlet with original screw

Insert A1 into A5,

Insert gun barrel to the tip of A1, A1 is designed to fit gun barrel closely, no glue is needed. Adjust MA2 screws till gun barrel can move smoothly

Fit A3 recoil gear assembly to servo, note the angle of recoil gear, then bolt it with black screw in servo accessory bag.

 Tunnion

 Bolt A10 and A11 to A5 with MA3

Put tunnion to turret lower hull, align it as picture

Use 2.6mm drill to make hole

On both side.

Then use 3mm drill to expand hold to 3mm

Insert MA6 to MA7

Bolt A13 and A14

Remove screw.

Elevation

Use 2mm drill to enlarge screw hole on servo disk to 2mm

 Align screw hole and stack servo disk and A7 

Bolt together with 4*MA5 screws

Use Tapping screw in servo bag to bolt A9*2

Insert servo gear assembly to servo shaft and bolt it with the black screw in servo bag

Install servo to servo stand with MA4 screw, the slot on A12 allows servo to moves for gear gap adjustment. set servo to the middle for now

Bolt elevation gear to A5 with MA4 screw

put elevation servo assembly to turret floor

 Use 2.6mm drill to make hole for MA6

Use 3mm to expand hole to 3mm, the bolt servo assembly ti turret lower floor.

Connect servo to TK board, set servo to top position, move gun barrel to adjust elevation gear position, elevation gear almost touch turret floor when elevation gun to most top position.

Push servo to minimize gap, then to fasten servo.

 Final Assembly

This picture shows recoil lenght