Caley Coaches CL02/2a Bouwinstructies - Pagina 8

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Caley Coaches

CL02/2a Building Instructions

Section 7 Boiler and smokebox

7.1

No cut-out for the motor and gears is provided in the boiler wrapper or the brass boiler tube since

the size of cut-out required will be dependent on your motorising arrangement. To determine the

size of cut-out required, temporarily mate the footplate and cab assembly with the chassis and

measure the distance over the motor from the cab front. Also note the width required. Transfer

these measurements to the boiler tube and cut it to suit. Check the tube in position and adjust as

required.

7.2

Roll the boiler wrapper.

7.3

The two cuts in the boiler/smokebox/ﬁrebox wrapper need extended so that, when the wrapper

is wrapped round the boiler tube it is 14mm long. (i.e. extends 7mm either side of the centre line).

The two sides of the lower ﬁrebox should then be folded back as shown in the diagram. Use the

ﬁrebox front (part 26) as guide when doing this.

7.4

Now transfer the dimensions of your motor cut-out from the boiler tube to the wrapper and

remove any surplus material.

7.5

A photograph of your prototype is now essential. If you are modelling later L.M.S. or B.R. days

then the smokebox is probably riveted. If so, push out the rivets from the rear on the smokebox

outer wrapper and front (part 26) using a map tack - there are some spare rivets on the fret to

practice your technique on. Roll the smokebox wrappers and then fold back the lower portions

such that the shape of the part matches the rivet line on the back of the smokebox front (part 24).

The diagram below shows the approximate shape :-

7.6

Seam solder the wrapper to the tube at front and rear and along the edges of the cut-out. Also

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