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Instruction booklet is here. - ModelTorque


									                                                                        ATC Installation Instructions
                                                                     Document # 31001 Issue 1. Released Nov. 2003            Step 2     Prepare & Fit ATC mounting plate.

                                                                                                                             Figure 4 shows the aluminium mounting           Motor securing             Location notches for
                                                                                                                             plate as supplied (above), and (below)           wire notches             Athearn motor mounts
                                                                                                                             the plate trimmed, folded and fitted to
                             For Installation of ATC Assembly Codes A31a2n                                                   an Athearn chassis.                                    ATC mounting plate [as supplied]
                                             to Athearn chassis

Related Document(s) : Document # 31002 : “Size 3 ATC Stub Axle Installation”                                                 Step 2.1   Prepare ATC mounting plate          Mounting plate trimmed
                                                                                                                                 [Refer to Figures 4 & 5]               & folded to suit chassis
Kit K-Ath1 contains the following parts : Polycell squares : 2 pieces; Red loop wire : 1 piece; Securing wires : 2 pieces;   (a) Replace 1 (only) motor mount
Glue : 1 phial; Motor mounting plate : 1 piece; Silicone rubber tube : 1 piece.                                                  into the chassis.
                                                                                                                             (b) Trial-fit the mounting plate into
                                                                                                                                 the motor mount replaced in
                           Headlight                Motor                                                                        (a) above.
                                              + power contact strip                                                              [It will almost certainly be too long,                                            Figure 4.
                         + power strip
                                                                                                                                 at least at 1 end.]
                                                                                                                             (c) Select a length on either side of the
        Front truck                                                                                                              motor mount that will fit the motor
        + power tag
                                                                                                                                 cavity space available in the chassis
                                                                                                                                 you are working with.
                                                                                              Rear truck                         [The available space varies between
                                                                                             + power tag                                                                                                         Typical
                                                                                                                                 different types of Athearn chassis.]                                        mounting plate
                                                                                                                             (d) Bend 1 or both ends (as required)                                             cut & folded
                                              Motor mounts                       Typical Athearn                                 down so that the top of the plate                                           ready for fitting
                                              [1 each side]                    locomotive chassis            Figure 1.           is about 3mm above the base,
                                                                                                                                 when resting the plate on a flat
                                                                                                                                 surface.                                                                          Figure 5.

Step 1      Remove Athearn motor.
                                                                                                                             Step 2.2   Fit ATC mounting plate
    [Refer to Figure 1.]
                                                                                                                                 [Refer to Figures 4 & 6]
(a) Remove body shell.
(b) Remove contact strip clipped                                                                                             (a) Remove motor mount used in
    across top of motor.                                                                                     Figure 2.           step 2.1.
                                                                                                                             (b) Fit motor mounts into the mounting
    Note motor mounts ...                                                                                                        plate square notches (1 each side of                                           Typical
    these are reused to support ATC.                                                                                             mounting plate)                                                             ATC mounting
                                                                                                                             (c) Push this assembly into the motor                                               plate
       [Refer to Figure 2.]                                                                                                                                                                                   installation
                                                                                                                                 mount locating holes in the Athearn
(c)    Using a suitable flat-ended round                                                                                         chassis.
       tool, remove motor mounts by                                                                                          (d) Insert a small flat screw driver under
       pushing alternate securing pegs on                                                                                        the mounting plate at each corner                                                Figure 6.
       each mount until both mounts                                                                                              of the motor mounts and push each
       and motor are free.                                                                                                       motor mount firmly into its securing
       Take care to support motor as                                    Motor mounts                                             hole.
       mounts are freed.

Figure 3 shows the motor ‘cavity’ and                                                                        Figure 3.
separated motor mounts.
Step 3     Prepare & Fit ATC Assembly                                           Step 4      Connect ATC and Headlight Power
Step 3.1   Fit polycell pads to motor.
    [Refer to Figures 7 & 8]
(a) Peal backing from 1 polycell pad to                                                                                                       View ‘A’           Headlight        Front truck
    reveal self-adhesive.                                   Pealing backing                                                                                    + power strip      + power tag
(b) Place ATC motor across centre of                         from polycell                               Motor black wire                                    [before bending]
    pad, smooth pad across motor                                  pad
                                                                                           Solder to     Motor red wire
    & up sides.                                                                             chassis
(c) Repeat (a) & (b), above,                                                               power tag
    to apply pad to other side of motor.                        Figure 7.                                                                                              View ‘A’

Step 3.2   Fit ATC securing wires
    [Refer to Figure 9]
(a) Take each of the copper securing                                                                                                                   Solder to
    wires from the kit, place in a vise and                                                                                                                                 Motor black wire
                                                                                                                                      Solder to        headlight
    pull lightly on the free end to remove                   Polycell pads                                                             chassis          support
    kinks.                                                     applied to                                            Loop wire        power tag         bracket
(b) One each wire, measure 35mm from                         top & bottom
                                                                                                                                                                                  Figure 11.
    one end and at this point make a                         of ATC motor
    sharp right-angle bend.
(c) Take 1 wire and feed the long length
    under the motor mounting plate.                             Figure 8.
(d) Seat the bend into the notch in the
    mounting plate, then bend the wire                                          Step 4.1    Connect ATC power                               Step 4.2     Headlight power
    up on the other side of the plate,
    seating this bend also in its notch.
(e) Repeat (c) & (d), above, to locate                                              [Refer to Figure 11]                                        [Refer to Figure 11]
                                                            Both securing
    the 2nd securing wire.                                  wires fitted &      (a) Solder motor red wire together with                     (a) Bend headlight power strip into a ‘U’
                                                             restrained             one end of the red loop wire to either                      shape such that it rests on top of the
                                                             in notches             + power tag (see Fig. 1]                                    front truck power tag.
Step 3.3   Fit ATC Assembly to mounting plate                                   (b) Solder other end of red loop wire to
    [Refer to Figure 10]                                                            other power tag.
(a) Arrange chassis so that the bogies                                              NOTE : when soldering to the front
                                                                Figure 9.           truck power tag, solder either to the
    are parallel to the chassis.
                                                                                    vertical section, or UNDER the
(b) Rest ATC Assembly on Athearn motor                                              horizontal section.
    mounts with the power cables to the
    front (headlight) end, and black wire                                       (c) Solder the black motor wire to the
                                                                                    headlight support bracket.
    at the top.                                               ... and twisted       [See Fig.11; View ‘A’]
                                            Wires located
    [Note : Ensure that the red wire is      in mounting      to secure ATC     (d) When soldering is complete, lay red
    inside the curvature of the motor       plate notches                           & black wires in such a way to
    can.]                                                                           enable free turning movement of
(c) Position the ATC Assembly so that                                               the truck and ensure that the wires
    the distance from each bogie                                                    to not impinge on the ATC end caps.
    + power tab (see Fig. 1) to the ATC                                             Secure the wires in the set positions
    end cap is equal.                                                               with soft-setting adhesive.
    [Note : with the ATC Assembly in this
    location, it will not be central on the
    Athearn motor mounts.]                                     Figure 10.
(d) Maintaining this ATC location, twist
    the securing wires in turn to secure
    the ATC to the mounting plate.
                                                                                              ModelTorque is a Business Unit of PayTel Australia Pty. Ltd.   ( (613) (03) 9877 0222

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