This asthmatic car tyre pump came in to the workshop with little going for it. The owner had been very close to throwing it away when he came across my website.
This AirMan pump is designed to be plugged in to a car’s cigarette lighter socket and provide quick and convenient car tyre inflation. This one was dead.
On first inspection, the fuse was OK, the switch seemed to work and all connections seemed sound, when tested with a multi-meter.
Off with the cover…
When the motor was removed from the cam driving the piston, the bit that drives the pump, it spun freely when power was applied, using a battery in the workshop.
Seemingly, the centre spindle was protruding far beyond it’s specified reach, causing the pump connection rod to it it during rotation. Why? To be frank, I wasn’t sure. I can only surmise that the vibration and heat had caused the flywheel/ toothed drive to slide outside of specification.
There appeared to be room for a small washer to take up the excess space, so I fitted one I had lying around.
The washer, once fitted, allowed the flywheel/ toothed drive to sit ‘square’ in-line with the pump.
Once resembled, the pump ran freely and was ready to inflate, once more.
Cost of a new pump, circa £20. Cost of the washer, circa 5p.