Ring RAC900 Heavy Duty Tyre Inflator, Air Compressor with 7m Extendable Airline, Brass Connector and Storage Bag, Style 1

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strokes of the best pump could add 12psi, but don't forget that the tyre being inflated during the test was an ordinary car tyre and that only relatively low pressures were involved. It would be completely unrealistic to expect that pump to be capable of inflating one of your motorhome's tyres from 0psi to 69psi with 288 strokes. (Even if it could, that's still a helluva lot of strokes.)

Ring RAC900 Heavy Duty Tyre Inflator Air Compressor Ring RAC900 Heavy Duty Tyre Inflator Air Compressor

Unfortunately, the Screwfix master plug is as stated a 10A rated item, whereas the Ring RAC 900 the OP has is rated at 30 Amps, massively higher. I've no interest in further cluttering up my garage with the type of compressor you bought, but I do value the versatility of a powerful 12V tyre-pump that takes up little storage space and can travel with me in my motorhome. If people are looking for a pump most suitable for inflating motorhome tyres at any time or place, then I don't think there's anything better on the market than the RAC-900. If they just want a mains-powered pump, then they can do as you did, but they won't be able to travel with it. It measures psi (pounds per square inch), BARs and kg/cm 2 Carrying Bag For The Air Compressor RAC900

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https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/12v-van-tyre-pump-recomendations-please-/49906/ To use it with a car the bonnet must be open and the battery cover removed to expose the battery terminals. Although the report is 5 years old, it's worth noting the test criteria. These were a) the accuracy of a pump's own gauge at 30psi and b) the increase in pressure in psi that a pump was able to produce with 50 'strokes'.

Ring RAC900 - Practical Caravan

With that I have no trouble in lifting the odd few psi up to 65 that I might encounter when out and about. He also had a look but came to the same conclusion.. the air couldn't go in without opening the valve.. The underlying concept is good advice, but I would use a pair of Anderson, standard grey SB50 connectors, and include an adequately rated fuse close to the positive battery pole. The robust metal body and anti-vibration feet make this a durable inflator, ideal for trade use. Has an analogue dial that shows pressure in PSI, kPA, bar and lb/cm2. Comes with valve adaptor set and storage case.The preset digital air compressor function with auto shut-off saves time and hassle. Unlike other models, the display also features tyre pressure readings in PSI, BAR and KPA, so no more having to make complicated conversions from one type to another. For dark winter mornings or night time car breakdowns, there’s a handy LED lamp that features a torch, flash and SOS setting for extra convenience and safety. The 2.4m length of the battery connection cables, plus the 7-metre (extended) length of the air-line, should allow any of wheels of most motorhomes to be reached if (as Keithl has mentioned above) the pump is connected to a Ducato’s engine-compartment ‘jump start’ points. I connected the pump and switched on.. the gauge pressure shot up.. but no air was going into the tyre.. Puzzled, I had a look and found that there was no pin in the inflator connector to open the tyre valve.. so air could never go in.. Below are the three Inflation Adapters included for inflating balls, airbeds, paddling pools, etc.: Inflation Adapters See images of battery connections below: The Compressor’s SpringClips Connected To The Car Battery RAC900 30 Amp Fuse (Cover Removed)