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The RUPES BigFoot Backing Plate is a key component in an innovative system of free-spinning dual action polishers and accessories (collectively termed the RUPES BigFoot Random Orbital Polishing System) that has been designed and engineered from the ground up to produce optimal results in minimal time while simultaneously maximising user comfort and safety. All of the components associated with each machine in the BigFoot system are carefully matched in terms of their size and weight, so as to ensure that the balance of the machine is optimised and vibration levels are minimised. This includes not only the internal components, but also the backing plates and polishing pads. Therefore, in order to get the best possible performance out of each BigFoot machine (and preserve its warranty) it is important to only use it in conjunction with officially designated RUPES accessory products (for a list of backing plate designations, see the fitting notes in the How To Use section below). In reality many people are ignoring the above advice, and are fitting their BigFoot machine(s) with aftermarket or different-sized backing plates (because they wish to use different-sized pads). While these modifications may appear to work, they often impact negatively on performance and vibration levels, and breach the warranty terms specified by RUPES. Don't say we didn't warn you!
| Net Weight | 28 g (75 mm) 123 g (125 mm) 131 g (150 mm) |
|---|---|
| Thread Size | M6 (bolt through) (75 mm) M8 (bolt through) (125 mm) M8 (bolt through) (150 mm) |
| Construction | Nylon and flexible polyurethane |
| Dimensions | ⌀ 74 mm x 14 mm (75 mm) ⌀ 124 mm x 25 mm (125 mm) ⌀ 149 mm x 22 mm (150 mm) |
RUPES fitting notes: (i) the 75 mm version should be used exclusively with the RUPES LHR 75E Mini BigFoot Polisher, and is designed to accept all 100 mm BigFoot foam polishing pads, all 100 mm BigFoot microfiber polishing pads and all 90 mm BigFoot wool polishing pads; (ii) the 125 mm version should be used exclusively with the RUPES LHR 15ES BigFoot Polisher and the RUPES LHR 15III BigFoot Polisher, and is designed to accept all 150 mm BigFoot foam polishing pads, all 150 mm BigFoot microfiber polishing pads and all 145 mm BigFoot wool polishing pads, and; (iii) the 150 mm version should be used exclusively with the RUPES LHR 21III BigFoot Polisher, and is designed to accept all 180 mm BigFoot foam polishing pads, all 170 mm BigFoot microfiber polishing pads and all 170 mm BigFoot wool polishing pads. General usage notes: (i) always switch off your machine at the mains before fitting or removing a backing plate; (ii) always ensure that you tighten the backing plate sufficiently, but without over tightening it – a half turn of the hex key after it first pinches tight is usually sufficient for safe and effective use, and; (iii) always use an appropriate sized backing plate for the pad you are using – the pad should always protrude past the edge of the backing plate, never the other way around.
