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27. Handbrake

The handbrake microswitch was tested to establish (a) which of the two contacts should be used for correct operation and (b) to ensure the switch activates just before the first ratchet stop. Assuming the brake warning light comes on as soon as the handbrake is lifted, then the "Normally Closed" (NC) or top terminal is used. The position of the microswitch was adjusted to ensure correct operation.

The handbrake requires a clevis to connected which was done on the bench. The clevis was attached and the split pin was folded back on itself to ensure there would be no chance of it working it's way out over time.

The assembly was then transferred to the chassis where two small bolts are used to secure it. There's not a lot of room at this point in the transmission tunnel and two 13mm spanners were necessary to tighten the fixings. When in place, a pulley wheel was fitted with the handbrake line and then inserted into the clevis. Plenty of free brake line was required at this point to manipulate the split pin through the pulley pin and secure it onto the clevis.

Once in place, the handbrake line was secured in the two attachment points either side of the differential and the handbrake was electrically tested to ensure the microswitch activated as soon as the first ratchet point was reached. The two ends of the cables will be connected to the disc brakes later.

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