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Related Manuals for Brassmasters A1 4-6-2
Summary of Contents for Brassmasters A1 4-6-2
- Page 1 GREAT NORTHERN RAILWAY LONDON & NORTH EASTERN RAILWAY A1 / A3 4-6-2 (Right-hand drive) LOCOMOTIVE KIT Designed by Martin Finney 4MM SCALE OO - EM - P4 INSTRUCTIONS AND PROTOTYPE NOTES PO Box 1137 Sutton Coldfield B76 1FU Copyright Brassmasters 2016...
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Page 2: Section 1: Brief Historical Details
SECTION 1: BRIEF HISTORICAL DETAILS Just before Grouping, Nigel Gresley introduced his prototype 4-6-2 design on the G.N.R. There were only two engines of this class in service at the end of 1922, but a further ten had been ordered by the G.N.R. and these were completed in 1923, the L.N.E.R. -
Page 3: Section 2: Chassis Details
with long travel valve gear (LTV) with wider platforms and shorter steampipes. This change alters the length of the crosshead arm and the arm below the radius link. Bogie: Originally the engines were built with the swing link bogies which were converted to the helical spring type circa 1933-34. -
Page 4: Section 4: Frame Stays And Assembling The Chassis
For the fully compensated arrangement, which gives a much smoother ride to the chassis, drill out holes P1 for plunger pick-ups and C1 (1/16") for the compensation beam and solder the rear hornblocks to the inside of the frames, aligning them with the half-etched line and with the bottom of the frames. -
Page 5: Section 7: Fitting The Compensation Beams
SECTION 7: FITTING THE COMPENSATION BEAMS For the fully compensated arrangement solder a piece of 0.8mm wire through the holes in part 7. For the rear beams cut a piece of 1/16" brass rod so that it fits through the holes C1 and is flush with the outside face of the chassis frames. -
Page 6: Section 12: Valve Gear
that the cylinders are a good fit it the slots in the frames. Fold up the cylinders making sure they are square and fold out the 2-to-1 arm bracket. Construct the slidebars as shown in Fig. 18. Use plenty of solder whilst applying pressure to keep the laminations together. -
Page 7: Section 13: Finishing The Chassis
on the crankpin. Fit the arms on the crankpin and tighten so that the offset of the end of the arm is 2.5mm. You may need to file some more off the nut so that it tightens in the correct position. Rivet the radius rod to the arm and add part 108. -
Page 8: Section 15: Firebox
The front end detail can now be completed by adding parts 127, 128, B5, W4, 139, & 131 as appropriate. Add the sanding rods as shown in Fig. 26 and the lubricators as shown in Fig. 22. The lubricator linkage (part 60 or 61) is fixed to the chassis brackets and is probably best left until the body can be fixed to the chassis. -
Page 9: Section 18: Final Assembly And Detailing
Finally I must again thank Guy Williams for the original idea of a 'foreign' Pendon locomotive and for much of the pattern making. Best wishes Martin Finney February 1994 If you have any problem with the kit or any criticisms or suggestions please contact Brassmasters. - Page 22 ETCHED COMPONENTS 1. Frame - left 53. Crosshead arm - LTV - (2) 2. Frame - right 54. Valve connecting link lamination - rear - (4) 3. Rear frame extension - inner 55. Valve connecting link lamination - front - (6) 4.
- Page 23 ETCHED COMPONENTS (continued) 105. Bogie wheel - splasher - rear - (2) 158. Safety valve plate - (2) 106. Bogie - dust shield - (2) 159. Coned boiler wrapper 107. Screw coupling 160. Cone boiler joining strip 108. Eccentric rod bearing overlay - (2) 161.
- Page 24 WHITEMETAL CASTINGS BRASS and NICKEL SILVER CASTINGS W1. Steam pipe - STV - (2) B1. Vacuum pipe W2. Steam pipe - LTV - (2) B2. Drain cock - (4) W3. Smokebox door B3. Cylinder relief valve - (4) W4. Front sandbox lid - (2) B4.
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