a fairground life(a stich in time...)
Well were back at the mall for Easter. All equipment was moved on site Sunday night. The miami suspension seemed ok but it did run out of line by about 4-6 inches so I will have another go at aligning the spring hanger, well I'll have to check the U bolt nuts anyway. Alas though we did not get to the ERF front bump bump in time. "r" was driving it in and when he arrived I noticed that the wheel nuts were slack (assume from the bump bump) and had knacked the tyres disc, wheel studs and the hub on the lorry. The lips that catch the centre of the disc were worn down. "r" in his inexperience had not stopped to inspect the bump bump when it had got louder. Any how it was my fault for not getting to the problem sooner. So tonight after erecting the rides we stripped off the wheel. One stud was stripped and turning in the hub so we had to cut this off with the 9" grinder. Unfortunately this was also the stud that held the stainless wheel cap on, so this got destroyed too. With the wheel off we then removed the brake drum. The shoes were like new. We spun the remaining part of the hub, the part with the 9 remaining studs on it. Although there was no noise or slap or movement it did seem to run slightly wobbly. By about 2-3mm of wobble. Could this cause the bump bump? had the lorry been kerbed and buckled the hub? When I first inspected the lorry way back in December regarding the bump bump, I had thought it was slack wheel nuts, but they seemed tight. Were they in fact slack, with the tyres disc moving on the hub behind but the wheel nuts seized on the studs giving the illusion that they were tight??? Is it a faulty tyre (egged or with a flat spot) that has slackened the wheel nuts over the last few journeys due to the bump bump??? Or is it another fault that was too dark to spot tonight? I will have to take the final part of the hub off, I assume that there is a big castle nut under the dome in the centre but in the poor light it did look like all one piece. If only we had got to the problem sooner we could have saved about 90% of the damage.