General Information:

STEP:

Please complete the build of the Single control head before this build:
https://www.737diysim.com/build-guides-1/boeing-737-single-control-head-(sch)

STEP:

For my Patreons, please watch the first build video as aspects from this earlier build are essential for this build: https://youtu.be/sD-TjlDWeDM

STEP:

For my Patreons, This is a new shortened version of the build video for this build guide: https://youtu.be/o-vfXay6IkE

STEP:

Please refer to the Build Step 2 video. Place the drill guide over the end of the PVC pipe. Ensure it's precisely 90 degrees to the SCH. As shown in the video, use a straight line edge from the SCH's centre marking to the drill guide's two drill holes. Pre Drill both holes to 4mm. Flip the unit over 180 degrees and repeat, but ensure the drill guide does not move.

STEP:

Now drill out the upper holes to 12.2mm (I used a spade bit). Drill the lower holes to 8.2mm.

STEP:

Insert Qty4, M4 brass insert from the bottom into the joining edge of SCCB2.

STEP:

Place SCCB1 on top of SCCB2.

STEP:

Secure the two assemblies with QTY4, M4 x 10mm countersunk screws.

STEP:

Insert Qty 1, M5 brass insert into the bottom edge of the support SCCB9. Repeat four times.

STEP:

Insert Qty 2, M4 brass inserts into the bottom orifices of the support SCCB9. Repeat four times

STEP:

Insert QTY 9, M4 brass inserts into the backside of SCCB3 & 4

STEP:

Insert QTY 4, M5 Brass inserts into the bases of SCCB 3 & 4

STEP:

Insert QTY 2, M3 brass inserts into SCCB 8.

STEP:

Insert a Noggin and 6001 bearing into the facing clamps SCCB 10 & 11

STEP:

Place the clamps onto the PVC pipe. Ensure the LHS/RHS clamps are orientated as labelled.

STEP:

Insert the M8 threaded rod through the lower holes.

STEP:

Place one 608 bearing on one side with an M8 locknut.

STEP:

Turn the unit over, place another 608 bearings and secure the rod assembly with an M8 Locknut.

STEP:

Place a 608 bearing into the four tongs SCCB 5 & 6

STEP:

Place the Hall sensor drive plate onto the unit and secure it with the supplied screws.

STEP:

Insert the hall sensor assembly into SCCB 8

STEP:

Secure with Qty 2, M3 x 6mm screws.

STEP:

Place SCCB14 onto the shaft of the hall sensor. It should be a very tight fit!

STEP:

Place two supports, SCCB 7, onto the support frames SCCB 3 & 4. Secure each support with QTY2, M4 x 14mm screws.

STEP:

Turn over SCCB 3 & 4, Secure the supports SCCB 7 at the lower end with QTY 4, M4 x 14mm screws.

STEP:

The two units should now look like this. RHS & LHS

STEP:

Place QTY 2 tongs SCCB 5 & 6 onto SCCB 8. Ensure the 608 bearing faces down to SCCB 8.

STEP:

Place the support assy onto the assembly.

STEP:

Turn the unit over, Secure with QTY 5, M4 x 40mm countersunk screws.

STEP:

Repeat for the other side. The completed units should look like this.

STEP:

Place QTY 2, M8 thread rods into the tongs of SCCB 3 (RHS). Hold them in place with nuts on each side of the tong. Finally, add the spring to the middle.

STEP:

Place an M12 Locknut onto the end of the M12 threaded rod. Insert the rod into the unit's top hole.

STEP:

Place SCCB 12 on to the thread rod. This is essential to stop the components from binding.

STEP:

Place the PVC pipe onto the M12 threaded rod so it butts against the washer.

STEP:

Place the SCCB 12 washer onto the rod.

STEP:

Place the LHS SCCB 3 onto the M12 threaded rod.

STEP:

Ensure you pave the M8 rods into position as you close the units togther. Secure those M8 rods in the tongs with nuts either side of each tong.

STEP:

Place an M12 locknut on the end of the assembly securing all parts togther.

STEP:

Place the unit onto the base.

STEP:

Secure the base with QTY 12, M5 x 20mmm screws

STEP:

I highly recommend securing the base to a piece of wood to help stop any unwanted movement of the base.