openspaceman
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Everything posted by openspaceman
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Doesn't make a lot of sense for normal driving, brakes have very little use and the regeneration slows you down unless you set level to zero. My daughter's Kona came with it set to zero and the paddle on the steering changes it, I left it at 2 but personally would drive with a higher level, then bakes only used in an emergency or coming to a complete stop. There have been issues with updates and recalls and the 12V battery has no under voltage protection so has gone completely flat on several occasions, possibly related to a recall update.
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Interestingly that correctly shows the TU16, which I have and earlier said T15, but the TU32 pdf is actually the T35, which I have, and does show the speed change. I somehow doubt the TU32 is a two speed.
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I am not sure of the differences between TU and T but the gearing is by changing the distance from the pivot point, the pin on which the power lever pivots is an eccentric which is fixed by the little knob in the top of the power lever, pull this out and rotate the shaft until the knob can drop back in. I only have a vague memory as I always left it in low and took the T15 if I wanted faster.
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I cannot remember how I got my Tirfor handle, it didn't come with the winches which were second hand, but before that I would use the handle from a Hi Lift jack as that was in the Land Rover and held on by a split pin. Scaffold pole would be far to heavy for me to carry in to the sorts of places I needed a winch. Now the Eder 1800 with 100m of rope and a pulley and chain can be carried in and is lighter than the t35 and its wire rope.
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Yes but that's why it's twisted in a cable lay so the tension on any individual strand is the same even when it goes round a pulley. I suppose the type of steel in a chain differs between types as a load binder chain is much milder than a grade T choker chain and yes the load binder deforms plastically a long way before it breaks. Choker chain less so and it always struck me breaking a choker chain was more exciting than breaking a wire rope.
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I think a chain stores more energy than a wire rope because there are parts of the link that have a bending stress in them as well as pure tension.
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I used AVS and the above with no problems but Beacon Fencing at Ansty tended to be a bit cheaper.
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Yes one needs to define memory, as @Haironyourchest says no stretch then no way to store energy. Modern steel rope with a fibre core squeeze the core as it tensions and expands when it goes, normally with no or little stored energy. The problem comes when another part of the system stretches or bends and stores energy when it does, if the rope snaps then it's this which provides the catapult effect. KERR are famous for this when a weak attachment point fails and gets flung into the towing vehicle. Back in the days of 3 strand nylon climbing line a young lad was killed when it was used as a throw line with a weight on the end, this got stuck and the rope was pulled, elongating it until the snagging branch snapped releasing the weight with all the energy in the rope's elastic deformation and striking the bloke on the head. Most ropes used in arb now are "static" with minimal elongation rather than "dynamic" ropes used in climbing, to absorb the shock of the climber falling on them.
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The genuine Tirfor handle is telescopic and the outer is 610mm long with a diameter of 33mm OD and wall thickness of 3mm. Not sure how long the inner is as mine is bent and jammed in the outer but it is 25mm OD with a 2mm wall thickness. The outer is swaged down at the telescoping bit so the inner used to ride freely in it (this probably avoids problems with the weld seam). It looks like it was electroplated zinc. If it is mild steel these sections are available. I don't expect ever to use either of my Tirfors again nor the screw ground anchor as the Eder winch is better in all respects. I just need access to a hydraulic press to see if I can get it telescoping freely again.
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Hey they used to seem to go up and down in a mesmerising sort of way as the train window passed them, I suppose there was an arrangement between British Railways and the GPO before the voice signals could be multiplexed and each line only carried one channel. I have hit one of those ceramic pots and it folded the tooth downward for a way, the work hardening meant the file wouln't bite. I suspect I threw the chain away.
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I had another look at it today, it is firing the once then flooding from the state of the plug. I shall have to strip the carb again and check if the needle valve fork is set right.
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An old thread but I have a problem with my HL75, it's old but not a lot of work and on the original blades. Problem is it has sat with aspen in it for 2 years and now I cannot start it. I suspect an electrical fault but just a question about the carb; it has never had the mixture screws altered from factory setting, indeed I don't have a tool to alter them. It fires up once from cold every time with the choke and then never fires again. I have stripped the carb and nothing visible (I was half expecting to find a little globule of water somewhere). I'm a bit loathe to undo the mixture screws and flush the jets out with carb cleaner so can they be altered to just take a screwdriver? Is there anything else different about the Zama carb, I'm assuming the check valves diiscussed earlier in the thread are just in the purge bulb part of the carb? In the meanwhile I'll buy a new plug and research a replacement coil and work off a ladder 😞
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Mini forwarder at home in hardwoods
openspaceman replied to Big J's topic in Forestry and Woodland management
Are any of these small forwarders operating in the mid Hampshire region? -
I don't know if things have changed much since broadband appeared but as long as its Plain Old Telephone Service, two copper wires used out of seven, then the line was often held to the house by a wrap guy lashing then the non tensioned dropper either joined the house wire via "jellies" like a scotch block filled with insulating jelly of else went straight to a terminal block in the master socket. It was easy enough to disconnect the two wires as long as you noted their colours and which terminal they went to and then unwrap the lashing and drop the wire.
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Help with Tree ID Please
openspaceman replied to mrpercysnodgrass's topic in Tree Identification pictures
Is it in UK? It looks like a juvenile foliage sport of Lawson's cypress -
Good story and lovely bike, a Metisse was my desire in the 60s. Nearest I've got to that era so far is a Lewis Leathers quilted jacket. I don't think I could manage a kickstart now but how I'd love a 5 gallon tank. So the production featherbed only differed from the Manx Norton in the gauge of the tubes? My understanding about tritons is that the Norton factory would not sell the manx 500 overhead cam engine and it was sought after for one of the car formula classes. So the big money bought Manx Nortons complete and took the engines out. In the meanwhile the Turner designed 360 twin ( horrible for vibration in the T100ss I rode) bounced a bit in the Triumph frame because of the single front down tube. So the inferior but much cheaper engine got fitted to the redundant featherbed frames. Later tritons presumably used cooking norton frames .
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Octane rating is to do with how the fuel resists premature auto ignition, this can cause damage as a flame front moving through all the mixture from the spark is smoother than simultaneous detonation . Higher octane fuels tend to have slightly less calories but this can be made up for by using a higher compression ratio. The pressure from which the gases expand tends to be a direct correlation with thermodynamic efficiency. Engine designers have worked well to increase overall efficiency and manage high compression ratios as petrol octane rating decreased with the removal of tetra ethyl lead.
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Internal combustion engines are heat engines, they convert heat into motion. Ethanol produces less heat as it burns, because it is already partially oxygenated. So you need more ethanol delivered into the engine than you would petrol for the same performance. If ethanol content is 10% and it has 70% of the calories then it would be 3% worse by weight, not sure what that is by volume. Anything worse will be to do with changes in engine optimisation of fuel.
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Yes but it's wide band oxygen sensors that are used to feedback flue gas conditions and they operate by generating a voltage difference between the flue side and ambient air. Also a crude wire with a current running through it coupled with a temperature sensor can distinguish differing exhaust gas content in much the same way an air mass flow device works in a car.
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Are all modern apples grafted? Russets seem to stay on the tree ripening well into the autumn, my old boss planted up a small orchard which included russets 25 years ago which I could freely pick as most fall to waste but too far to make a soecial trip now. We have an old tree, which suffers from blossom wilt/brown rot, which ripens early and the apples don't keep. I have been juicing them to get some benefit from them as they drop but it doensn't appear to be grafted. One of the things that strikes me is what a good job apple growers do of storing them so they are available year round.
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...but it's regulation 83 of the construction and use act, I believe, that says a semi trailer and a dolly is a composite trailer and classed as one . 18tonne gross through
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Flick through this as he shows how to mount and spot weld nickel strips to the cells to make up the battery and then attach the wires to the BMS
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well you can buy the cell holders 18650 4x5 Cell Holder 30 pack 20 Cells DIY ABS Bracket US Seller WWW.EBAY.CO.UK Each unit holds 20 - 18650 cells. Once assembled, these cell holders are very difficult to take apart. Trying to do so, you will... and cut them to size, the BMS then has to link into each bank and see the voltage so it can equalise the banks. It#s all new to me but I am looking at changing an obsolete electric bike with a brushed motor over to Lithimm phosphate and a different controller. Other thought is to use some 2.5Ah batteries from power tools.
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Wouldn't you need to spot weld the cells into banks and then join the banks in series? Then you need a battery management system to control charge and discharge
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Long reach hedge cutter / pole saw. Recommendations.
openspaceman replied to flanagaj's topic in General chat
It's gardeners with backpack blowers that irk me as they blithely carry on evacuating leaves and dust from a private drive onto the highway.
