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Indicator and Hazard circuits rank pretty high in the 'problem' stakes when building a car. The problem is - there is no single, universal way to do it. There are hundreds of switches, lamps and relays available and hundreds of ways to wire them. If you're in any doubt over your wiring it always make sense to mock-up a circuit on the bench. Here, we've made a simple indicator cuircuit on a small piece of plywood using four #RL15 indicator lamps, a pair of #SR5 side repeaters, a flasher relay #FRLY7 and an ON/OFF/ON toggle switch #TSN4. A few short pieces of 5 Amp wire, some spade connectors and a #QCON3 connect it all together. A 12 volt battery is all that's needed to make it work and prove your design.
When you have the indicator circuit working you can add the Hazard func- tion. All the information you need is in this catalogue. Just take it steady and work through it one wire at a time - you may surprise yourself !!
+12V
SPOT OR FOG LIGHTS
INDICATOR AND
HAZARD
CHANGE-OVER RELAY
MAKING A STEERING WHEEL ADAPTER PLATE
HEADLAMP WARNING BUZZER
It's a fairly straightforward job to make a simple adapter plate for fixing a steering wheel to a boss. The sketch below shows the dimensions and hole sizes for fixing one of these wheels to our Quick Release Boss #QRSW (discarding the horn push). You can use 3mm or 4mm thick aluminium and if you don't have access to a lathe, you can drill, saw and file it to size. A paper template will help you mark out the hole positions.
Page 400
87mm DIAMETER
6 x 5mm HOLES ON 70mm PCD
28mm DIAMETER
3 x 6mm HOLES ON 45mm PCD
To order Tel: 01580 891309 or 01580 448007 or Fax: 01580 893733 ISSUE 31