This pack contains sideframes, brake gear, wheel balance weights, cylinders, coupling and connecting rods,
valve gear, crossheads and pony truck to produce a detailed chassis of the correct scale dimensions and
appearance which can be used as a substitute for a kit or RTR chassis. A separate fret of 00 spacers is
included, which can be exchanged for EM (LS10) or P4 (LS60) by returning them to us in a stamped, self-
addressed envelope. We recommend the Mashima MH1624 motor with our gearbox GB1 for this model, and
can supply the latter together with Markits wheels if required.
As supplied the chassis is suitable for the Bachmann RTR model. It can be modified to fit the former Lima
RTR model or the DJH and SE Finecast kits as suggested below. This should be undertaken with care and
good pre-planning, especially as regards body fixings and ride height.
DJH: This is almost a direct fit. For 00 the height of the upper section of the frames may need to be reduced
in order to clear the underside of the boiler. Slots will be required across the underside of the cast running
plate where the boiler curve intrudes in order to allow the top of the cross frame assemblies to fit.
SE Finecast (original): The frames need to be shortened by 2.5mm at the front and 1mm at the rear. The
brace across the body just behind the cylinder position must be removed and the underside of the running
plate smoothed off. The small steps on the front under curve should be filed away.
Lima: The frames need to be shortened as for the Finecast body above. The dragbeam should be cut away
allowing the rear of the frames to pass through. A new dragbeam can be fashioned from brass and soldered
across the back of the frames.
In 1931/2 five of the class were modified with Lentz rotary cam poppet valve gear. In 1953 they were again
modified, this time with the Reidinger version of the rotary cam gear. The modified engines were
13118/22/4/5/9, later becoming (4)2818/22/4/5/9. Parts for both versions are included.
Etched parts list
Please note that part numbers 15,19,20,26-36 and 38-42 apply only to the Walschaerts valve gear version
and are not present in this kit. A chassis kit for this version is available as LCP14.
Fret 1 Frames and brake gear
1
Frames x2
7
Brake hanger overlays, front x2
2
Spring overlays x6
8
Brake pull rods, front x2
3
Running plate support brackets 00/EM/P4 x6
9
Brake pull rods, rear x2
4
Brake hangers, centre and rear x4
10
Brake pivot brackets, intermediate x2
5
Brake hangers, front x2
11
Brake pivot brackets, front x2
6
Brake hanger overlays, centre and rear x4
Balance weights, front and rear x4
Fret 2 Frame parts and pony truck
14
Spur gearbox bracket
55
Pony truck 'A' frame 00
16
Slidebar support bracket
56
Pony truck 'A' frame EM/P4
17
'D' brackets x2
57
Pony truck sides x2
18
Return crank gearbox steady rod bracket
58
Pony truck side overlays x2
21
Return crank gearbox steady rod bracket
59
Full thickness washers x4
reinforcements 00/EM/P4 x2
60
Half thickness washers x2
Fret 3 Rods and slidebars
12
Coupling rods x2
24
Connecting rods x2
13
Coupling rod overlays x2
25
Connecting rod overlays x2
22
Slidebars x2
37
Return cranks x2
23
Slidebar steps x2
Fret 4 Cylinders and motion details
43
Spur gearbox support shelf
50rd
Cylinder cover plate, round (Reidinger) x2
44
Lubricator drive bracket
51
Cylinder cam box cover x2
45
Cylinder front
52
Lubricator drive crank
46
Cylinder rear
53F
Cylinder front cover plate x2
47
Return crank gearbox steady rod links x2
53R
Cylinder rear cover plate x2
48
Return crank gearbox mounting plate x2
54
Return crank gearbox steady rods x2
49
Return crank gearbox cover plate x2
Balance weights, centre x2
50lz
Cylinder cover plate, square (Lentz) x2
Whitemetal castings
Cylinder sides x2
Return crank gearbox x2
Sandboxes, front x2
Bevel gearbox x2
Sandboxes, centre x2
Universal joints x6
Sandboxes, rear x2
Steam pipes x2
Reversing rod support bracket
Vacuum release valves x2
Lost wax brass castings
Spur gear box
Crossheads x2
Turnings
Universal joint shrouds x6
Please note that all bends should be made with the half-etched lines to the inside (unless stated otherwise)
and reinforced with a fillet of solder. The kit is designed to be built up as a set of sub-assemblies and finally
brought together as a running chassis. At several points in the process you are strongly advised to check for
fit and function before proceeding. All references to Left and Right hand are given as from the cab looking
forward.
Assembly Instructions
Chassis
1.
The frames may be assembled rigid, or with sprung axles using our hornblocks and springs code
LS55. If you wish to spring the chassis cut through the spring hangers using a piercing saw and
remove them together with the centre portion of etch within the hornway. The sides of the hornways
are etched at approximately 5.85mm apart to ensure that any slight variations in the width of the
machined grooves in the hornblocks do not result in any one of them having a loose fit within the
hornway. Each hornway must be carefully dressed with a file to achieve a good sliding fit to each
hornblock, which should then be marked up or placed into a labelled bag to ensure it is assembled
only into the hornway to which it has been precisely matched. Take time and care over this stage,
removing material slowly and from each face equally. The hornblock must drop in freely under gravity
but must not show any fore and aft play which might cause the coupling rods to bind. This might
sound daunting, but the patient builder will be rewarded with a chassis having superior ride, track
holding and traction compared to an unsprung chassis.
2.
For rigid axle assembly, carefully open out the axle bearing holes in the frames until the bearings are
a close fit, ensuring the bearing flanges fit snugly against the frames. This is best done using a five
sided broach. If you are using our chassis jigs (see below), DO NOT solder the bearings in place at
this stage. Open out the holes for the brake cross-shafts to 0.75mm.
3.
Recommended fixing points for the Bachmann body are under the smokebox and the underside of
the firebox backhead, as indicated in sketch 1. The backhead should be permanently fixed with
cyanoacrylate glue before attempting to mount the body on the chassis. The frames are supplied with
the forward extension over the pony truck. For this conversion the front section should be cut off as
indicated on the fret and in sketch 1.
4.
If you are springing the chassis drill out the holes at each side of the hornways and those in the
separate spring etches to 0.5mm as shown in sketch 2. The suggested layout for the frame spacers
is shown in sketch 1. Those spacers which are used for attaching sub-assemblies should have the
nuts soldered to them as shown
before
fixing them to the frames. For the cross frame assemblies
ensure that the spacers are soldered slightly below the designated positions, then insert packing to
Components recommended to construct a
complete chassis
6 Markits 5'6" driving wheels (WH205B)
3 axles, 6 crankpins and washers (RM2)
1 set 3'6" 10 spoke bogie wheels (WH33)
Mashima MH1624 motor and GB1/20
gearbox
LCP13
Chassis pack for LMS
Hughes/Fowler Crab 2-6-0
(Rotary Cam valve gear)
