Caley Coaches CL02/2a Инструкции по строительству - Страница 5

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5.4

Fix the motor onto the gearbox and locate the assembly in place in the chassis on the rear axle.

Don't forget to mount the gearwheel on the axle but leave the grub screw untightened so that the

axle can revolve freely.

5.5

Cut three strips of the copper-clad ﬁbre-glass to be a tight ﬁt between the frames. Remove a little

of the copper at each edge to make sure of insulation from the frames.

5.6

Glue the strips to the inside to the chassis level with the bottom edge of the frames, as allowed

by the motor etc., in line with one edge of each wheelset. Then solder a phosphor bronze strip to

the strip in line with one edge of the wheel. Stick a small piece of insulating tape over the edge of

the chassis and then bend the pickup strip over the chassis and up the face where it will bear on

the back of the tyre. (See diagram.) Pickup can be improved by soldering a small piece of brass

(or gold !) wire to the business end of the phosphor bronze strip where it bears on the back of the

wheel.

5.7

Link the three strips together and to the motor with ﬁne insulated wire.

5.8

Position the other axles in the chassis and assemble the wheels onto them, packing with shim

washers as necessary. The ride height of the compensated chassis may be adjusted by tweaking

the ends of the beam up or down.

5.9

Glue the balance weights in place on the wheels (large one on the central wheels). A photograph

of your prototype is recommended to get the positions correct.

5.10

Solder the brake blocks to the brake hangers and pass the hangers onto their locating wires. Adjust

until there is no danger of a short, solder in place and cut the wires back ﬂush.

5.11

Quarter the wheels as follows (unless you are using Romfords!) :-

Starting with the driven axle adjust all the wheels to approximately the correct quarter

aligning by eye to the nearest spoke,

Fit the coupling rods and bushes to the driven and centre wheels,

Freewheel the chassis up and down and feel for binding,

If binding occurs, adjust only one wheel on the centre axle

Again freewheel the chassis up and down, repeatedly adjusting the quartering anti-

clockwise on the same wheel until no binding occurs,

Fit the coupling rods between the centre and rear axle and repeat the process from c),

adjusting only the quarter of one of the rear wheels.

5.12

Solder a length of wire between the holes at the bottom of each pair of brake hangers. Clip the

pull rods on the wires and solder. Secure the rear of the pull rods with a length of wire passed

between the pull rod anchoring points towards the rear of the chassis through the rear holes in

the pull rods.

Caley Coaches

CL02/2a Building Instructions

⁄

of a spoke clockwise,

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