Finney7 Adams Radial O415 locomotive Instruction manual

FINNEY7
ADAMS O415 RADIAL TANK
LOCOMOTIVE
Caution.
This product contains etched parts with very sharp edges and castings that
may contain lead. Neither the Manufacturer, Distributor or Retailer can
accept any liability for illness, injury or consequential damage caused when
handling or building this product.
Read any instructions before assembly. Do not eat or drink whilst handling.
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BRIEF HISTORICAL DETAILS
The locomotives, which form the subject of this kit, were to the design of William Adams for the LSWR. They were a
development of his ‘46’ class of 1878. A total of 71 locomotives were built by four outside builders as follows:
Numbers
Delivered
415-426
8-10/1882 Beyer, Peacock Short
Maker
Tanks Blower ValveDome Trailing Wheels Tank Front
Left
Small
3’0”
Low
45/7-57, 427-3
10-12/1883 R. Stephenson Short
Left
Small
3’0”
Low
169-71/73, 490-5
11-12/1884
Dubs & Co.
Left
Small
3’0”
Low
479-489
2-3/1885
Neilson & Co.
Long
Right
Large
3’0”
High
516-525
11-12/1885
Dubs & Co.
Long
Right
Large
3’6”
High
6-10/1885
R. Stephenson
Long
Right
Small
3’6”
High
Short
68,77/8,82
104/6/7/25/6/9
Note:
68,77/8 were renumbered 58-60 in 3/1889,6/1890 and 8/1890.
Note:
125 and 520 became Southern Railway 3125 and 3520 in 11/1933 and 12/1934.
Note:
After a chequered career 488 was renumbered Southern Railway 3488 in 11/1946.
Note:
At Nationalisation these three were renumbered again as follows:
SR No.
3125
3488
3520
BR No.
30582
30583
30584
Date
3/1949
10/1949
4/1948
For a detailed history of this numerous class we suggest you refer to the following definitive books by the late
D.L.Bradley:
The Locomotives of the LSWR, Part II published by the RCTS
LSWR Locomotives - The Adams Classes published by Wild Swan
Other valuable sources of information and photographs are:
A Pictorial Record of Southern Locomotives - J.H.Russell - OPC
Locomotives Illustrated No. 59 – LSWR Outside-cylinder Tank Locomotives - Ian Allan
Southern Steam Locomotive Survey - The Adams Classes - Bradford Barton
There is a review of building this kit by Chris Wesson in MRJ 126 and 127.
With such a large number of locomotives, built by four different builders, and lasting in service for over seventy five
years, there are considerable variations between individual engines. Many of these have been covered by including
alternative components in the kit, however it is essential to have a photograph of the individual locomotive you propose
to construct to enable an authentic model to be built. We have drawn up GAs to represent the form of the locomotives
from each builder; the construction drawings are rather more generic to represent for example a steel roof or a wooden
roof.
VARIATIONS POSSIBLE WITH THE KIT
Rivets. In traditional Beyer, Peacock style the first ten engines were built using snap head rivets. The remaining
engines were all built using mainly flush rivets on the running plate and upper works.
Tank length. The first 28 locomotives had very short side tanks. Subsequent locomotives had longer tanks of increased
capacity.
Blower valve. The position of the blower valve, as shown in the table, varied depending on the builder. Late survivors
had the blower valve moved, in Drummond style, to the side of the smokebox with the operating rod inside the handrail,
which was lengthened for the purpose.
Dome. Domes were of two sizes as shown in the table.
Trailing wheels. The last twenty engines had the trailing wheel diameter increased to 3’ 6”.
Tank front. On some engines the top edge of the tank front was flush with the tank top. On others the front was
extended to the same height as the tank sides with the beading carried round over the tank front.
Chimney. When built the locomotives had Adams stove pipe chimneys. These were replaced by Drummond from
February 1901 with his distinctive design.
Slidebars. From circa 1907 numbers 47,52,57,125,129,415,419 and 520 were fitted with double slidebars.
Splashers. The splashers of the Beyer, Peacock engines were adorned with that makers builders plates. The splashers
of the other engines had a wide beading in a circular arc.
Front frames. The Neilson & Co. engines had front frames to a profile different from the remainder. The frames of
numbers 125 and 520 were replaced by the Southern Railway during an extensive rebuilding at Eastleigh during 1930.
The new frames were to a new profile at the front.
Cab cut-out. The Neilson & Co. engines had a different cab side cut out to the remainder.
Boiler handrail. The position of the boiler handrail knobs depended on the builder. The boiler handrail on the Beyer,
Peacock engines was attached with distinctive brackets.
Tank lifting Brackets. In SR days lifting brackets were fitted to the top of each tank.
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Coal Rails. Three bunker coal rails were fitted from circa 1900. Later still the coal rails were backed by metal sheeting
to stop the loss of small coal.
Cab rear windows. After the fitting of coal rails most engines were fitted with bars of either wood or metal over the
rear cab windows. Some of the later survivors were subsequently fitted with smaller windows.
Water filler. As the coal rail and rear window changes took place so the height of the water filler increased to allow
more coal to be carried.
Cab roof. The original cab roofs were wooden. From circa 1900 they were replaced, by Drummond, with steel roofs.
Safety chains. When built the engines were fitted with safety chains. These were gradually removed during
Drummond’s time.
Steam heating. From circa 1901 carriage heating steam pipes were fitted.
Lamp brackets. The locomotives were built with Adams’ socket style brackets. Drummond added new brackets of his
design over the buffers at the front and rear and above the coupling hook at the rear. The SR standardised on a design
with the socket in the lamp and the later survivors were gradually fitted with new brackets of standard design.
Smokeboxes. When smokeboxes were renewed by the Southern Railway, the flush riveting was often replaced by
visible snap head rivets.
Couplings. The engines in their early years ran with a single, long coupling link often with a separate screw coupling
hanging from the draw hook. Later the locomotives were equipped with screw couplings together with a hook to carry the
coupling when it was not required.
VARIATIONS NOT POSSIBLE WITH THE KIT.
New Adams boilers. From 1895 seven new boilers were built and fitted to Nos. 57,170,483, 486,490,492 and 517.
With these new boilers came new cabs with round lookout windows.
Drummond boilers. In 1907 two new boilers of Drummond pattern with dome top safety valves were built and fitted
initially to 486 and 520, eventually seeing service on four locos. This variant is the subject of an alternative kit from
Finney7.
CHASSIS OVERVIEW
Note that many of the components for both chassis and body are handed left/right and care must be taken to ensure the
correct component is used. Components are not always identified left/right separately but with care and common sense
no problems should arise.
Before construction can commence you have to decide which particular chassis you are going to construct. The options
are:
Gauge - Finescale or Scaleseven
For Finescale, where little sideplay is required, the widest spacers can be used but they will need careful filing to make
their width 26.0 mm. If you require your engine to negotiate sharp curves then the middle width spacers should be
used.
The widest frame spacers supplied are suitable for Scaleseven and care will be needed to allow sufficient sideplay,
especially in the leading axle to enable the model to negotiate moderate curves.
Suspension - rigid, sprung or compensated
Rigid. The kit is supplied with top hat bearings to build a rigid chassis. Open out the main axle holes to accept top
hat bushes and solder them in place.
Sprung. If you are going to fit sprung horn blocks, you should open out the frame slots by cutting up the half
etched lines and then follow the manufacturers instructions.
Compensated. The simplest and most reliable suspension system is beam compensation and the necessary
compensation beams are provided in the kit. Not provided are the hornblocks and bearings which are available as an
extra item which includes instructions for aligning the hornblocks accurately.
Pickups - no pickup material is provided. The options are:
Scrapers attached to the middle frame spacer using printed circuit board.
Plunger. Open out holes P and fit according to the manufacturers instructions. It may not be possible to use
plunger pickups if you wish to fit the inside motion because they may foul each other.
Split axle/frame. We leave this to you! Some useful information can be found at
http://www.euram-online.co.uk/tips/splitaxle/splitaxle.htm.
Motor/Gearbox - not provided - a Canon motor with the ABC custom gearbox or a SDMP Romford Geared Gearbox are
both recommended.
Wheels -
Driving wheels
Bogie Wheel
Trailing wheel
or
5’7”diameter, 18 Spokes (2)
3’0” diameter, 9 spoke (2)
3’0” diameter, 9 spokes (1)
3’6” diameter, 10 spokes (1)
Slater’s
Slater’s
Slater’s
Slater’s
Ref.
Ref.
Ref.
Ref.
7867S
7836ARMF
7836ARMF
7842ARMF
Bogie Pivot - there are alternatives for the position of the bogie pivot. The choice made will largely determine the radius
of curve the locomotive will negotiate.
Inside motion - A separate kit is available to construct the working inside motion.
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