Kit 18 - Winding Drum & Drive Gears

ModelWorks 4 inch Scale Burrell Agricultural Traction Engine
I collected kit 18 from Citylink 26th November
 

(6/11/04) Reading the kit 24 instructions Steve indicates that we will be getting the final drive gears, winding drum and gear guards at the end of November.  This may be an improvement over the original build sequence as when we eventually get the boiler it may be possible for the wheels can go on and stay on.  What I don't known is; whether this kit will contain all the outstanding items that need to be threaded on the back axle.

(12/11/04) Steve has tipped me off and the wheels will need to be removed to fit the fly wheel and diff gear supplied in kits 16 & 17 respectively.  If I can find a spot where I can leave the boiler on "blocks" it will not be an issue how many times I remove the wheels.

(1/6/05) When kit 17 was finally delivered it was necessary to modify the right hand gear guard in order to clear the outer bevel.  Steve describes this in the kit 17 instructions.

Thursday 25th November: I was surprised to find a card from Citylink waiting when I got home today.  I knew it was going to be heavy but its the first time I have been invited to move my car to the parcel rather than have it carried to the car.

At 74lbs I decided to photograph the contents on the workshop floor rather that carry up two flights of stairs to my dining table. 

I was impressed with the quality of the gears bearing in mind their size at 15 inches diameter.  Prior to committing to the Modelworks Burrell I was planning to build in 3 inch.  Seeing these gears dwarf my machines brought it home to me how much of a 3 inch engine I would have to subcontract. 



Saturday: I cleaned up the main drive gears using a half round file and wire cup brush in my power drill.  In no time at all I was ready to trial assemble the rear ale.  I felt like I was assembling a weight lifter dumbbell, trouble was there was now way I could lift it.

The object of the trial assembly was to check the float on the axle.  Nominally the distance between the wheel and the wheel retaining collar is supposed to be 1mm but Steve says anything between +0 and 2mm is Ok.  As the picture below shows mine is 3.5mm!




The instructions cater for the case where the clearance in insufficient but not where it is too great.  If the clearance is insufficient the instructions suggest thinning down the retaining collars but I would recommend caution since there is only just enough clearance to insert the retain pin.  I plan to do nothing at this stage but will wait and recheck the clearance once united with the boiler and hornplates.


Sunday: Today I made a start on the gear guards.  I gave them a good going over with the wire cup brush and then used a file and flap wheel to give the outside edge a distinct radius. In an attempt to fill the join between the plates I mixed some decorating filler with some paint and applied with a brush to the cracks.

Saturday 4 Dec: I planned to trial assemble the gear guards to the hornplates today but I was thwarted when I realised that one side of the guard is secured to the hornplate and the other to the tender. I have now decided to wait until the hornplates and tender are fixed to the boiler.  Further painting is on hold since I don't want to paint the guards until I have checked their fit .

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