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ASSEMBLE INSTRUCTIONS
Accucraft Victorian Railways 'Na' Class 2-6-2T
Argyle Locomotive Works Pty Ltd. Australia
14 Mar 2025
Locomotives '8A', '7A, '1A'
Introduction
Accucraft first produced the NA model in 2014.
The 2025 production is an entirely new build with many improvements in both
manufacture and features. This handbook is for the 2025 production and covers models
of the preserved locomotives (6A, 7A, 8A, 12A, & 14A) and '1A', the first of the class
delivered in 1898. '1A' represents the original Baldwin build, as it was delivered to the
Victorian Railways and is without the various modifications developed by the VR for its
Australian operations.
The kit is intended for modellers with at least some experience in building live steam
locomotives. If you are a beginner in this hobby and wish to attempt the construction of
this model, we encourage you to find an experienced modeller to help you along the
way.
Before you begin each assembly section, complete an inventory of the parts listed in the
Parts Table for that section. If any parts are missing, contact your dealer or Accucraft
directly for clarification or replacement. To assist you, they will need the following:
Section or Page Number / Item Number or Part Number / Part Description
Special Notices are provided in information boxes with the subject in
red text.
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Summary of Contents for Accucraft NA
- Page 1 Before you begin each assembly section, complete an inventory of the parts listed in the Parts Table for that section. If any parts are missing, contact your dealer or Accucraft directly for clarification or replacement. To assist you, they will need the following:...
- Page 2 These instructions cover both versions of the model and are intended to be used in conjunction with the Assembly Illustrations. The assembly parts illustrations booklet for the Preserved NA models is labelled AU001. The assembly parts illustrations booklet for the 1A model is labelled AU002.
- Page 3 Only unpack parts that are required for the stage of assembly on which you are working. Work Area You will be handling many tiny parts. Many of which are dark and hard to see. Spend some time getting organised. Prepare a clear area with good lighting and a soft work surface.
- Page 4 to the frames by Front Patch #3. Position it on the frames with the notched plate on the underside of the loco and the notch facing backward. • Inner Frame 5 #11 is attached with +M2-4 x 2. • The notches in the frames that accommodate Frame Spacers # 6,7,10,11,12 may need to be filed slightly to allow their correct installation.
- Page 5 Fig 2: Installation of Pilot Truck Bolsters Section 4. Wheels & Eccentrics It will make your progress in Section 10-1 (Setting the Valves) much easier if you assemble the eccentrics as shown in this diagram, that is, with the axle in the position shown, assemble the first eccentric fully up, the next eccentric fully down the third eccentric fully back and the final eccentric fully forward.
- Page 6 Section 5. Cylinders & Slide Bars It is a good idea to check the movement of the Cross Heads (#6 & 8) inside the Slide Bars (#7 & 9) before assembling them. The inside surfaces of the Slide Bars can be polished to remove any machining marks with 1200 grid Wet &...
- Page 7 Chest over the Valve Block pins. The steam supply manifold is mailable and can be adjusted to allow alignment. Temporarily install Valve Chest Plate Section 10 #19 and secure with Nuts N-M2 SUS to compress the sealant until it sets. You can assemble the plate work and air tank at the rear of the loco and start on sect 10 then return to install the remaining valve gear after the sealant has cured.
- Page 8 • Both eccentrics provide input to the valves when the Johnson Bar (sect10 # 12) is set at a position other than full forward or full reverse. • The correct initial positioning for the eccentrics is to have them set at 90 degrees to the Axle Crank as follows.
- Page 9 a. When the eccentric is in the fully up position access can be made to the Set Screw securing it to the axle. b. Use the Hex Key Wrench (Allen key) to release the set screw. Keep the Allen key engaged in the set screw to prevent the eccentric from turning while the following adjustments are made.
- Page 10 Lifting Arm Clearance When in full Forward gear, the heads of the Shoulder Bolts (Sect 9 #1) travel close to the Lifting Arms (Sect 4 #9). Check that these items do not strike each other during operation. If necessary, adjust the position of Reversing Arm (Sect 4 #10) to give equal clearance to both Lifting Arms.
- Page 11 Section 12. Boiler The boiler Serial # is located on the underside of the boiler, at the front. It should be the same as on the Boiler Test certificate. Record or photograph the number now as it is not visible when installed. •...
- Page 12 Securing the Boiler Until the Smoke Box is fitted, the boiler is only held in place by one screw at the back. Do not lift the model by the boiler. A suggestion is to thread a large cable tie through the front of the chassis and around the boiler to secure it to the front end. Place the Johnson Bar into full reverse and turn the model upside down.
- Page 13 Section 15. Cab and Pony Trucks The six threads in the cab base might need cleaning with a 2mm Tap. You will need to remove the Air Tank (Sect 9 #16) to install the rear cab screws. Section 16. Side Tanks & Generator •...
- Page 14 Locomotive ‘1A’ These build instructions are written for the Preserved NA loco models. Build variations between locomotive 1A and the Preserved locomotives start to occur from Sect 18 onward. Refer to images for both versions to assist with placement of detail parts.
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Page 15: Operating Your Model
Manipulate Coupler Cut Lever #5 to align with its support brackets #5 & 7 and the Coupler release eye to give a smooth action that does not restrict Coupler movement or cause the coupler to release inadvertently. Section 22. Smoke Box Door and Front You are supplied with two Magnet D4-2 to hold the smoke box door closed. - Page 16 Detail Images – ‘Preserved’ Locomotives Right Hand Side...
- Page 23 Left Hand Side...
- Page 27 Detail Images – ‘1A’ Locomotive...
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