sábado, 23 de enero de 2010
Mejora instalación foco removible
domingo, 20 de diciembre de 2009
Foco Lumotec IQ Cyo Busch & Müller IQ-TEC para la Brompton
miércoles, 24 de junio de 2009
Instalación foco removible sobre rueda delantera
lunes, 23 de febrero de 2009
Dinamo de buje Schmidt Maschinenbau Navendynamo
Navendynamo
SON SX 6V 3W
K439 Schmidts Original 16" - 20"
Schmidt Maschinenbau Navendynamo
Manufacturer
Wilfried Schmidt Maschinenbau Tel. (+49) 7071 38870
Aixer Strasse 44 Fax (+49) 7071 38876
D-72072 Tübingen e-mail: info _at_ nabendynamo.de
Germany www.nabendynamo.de
Instrucciones de montaje en la Brompton: Montaje SON XS http://www.nabendynamo.de/produkte/pdf/english/Montage_SON_XS_bro_e.pdf
Fotos del desmontaje en este blog
Important advice
With lights switched off, the fast spinning generator induces a high and possibly dangerous voltage. For this reason the switch and generator must be connected by a fully insulated cable like the one provided, i.e. with no bare parts.
Wheelbuilding
The SON XS is designed for the usual tangent (crossed) form of spoking. Radial spoking is also permitted. Flange thickness and spoke holes are optimized for high quality 2 mm (14g) spokes. For the current Brompton rim 349x19 (available since 2005, wear-indicator groove at the sidewall) with 28 spoke holes 148 mm long spokes are recommended, mounted 2 cross not interlaced. For radial spoking use 133 mm long spokes. Older Brompton rims (marked “Alesa”) need spokes 2 mm longer.
Attention! Unlike the classic SON the axle is made from aluminum and correspondingly more delicate. The axle end should in no case be clamped from the sides or highly loaded during the wheelbuilding process.
Fitting the front wheel
A Brompton with the original mudguards has one mudguard stay clamped onto the hub axle on the left side of the fork. The axle ends are longer than usual for hollow axle hubs to hold the retaining washers, which also embraces the eyelet of the mudguard stay on the left side.
The hub is secured using the included skewer set. It fits the same way as a quick-release, but fastens with a 4 mm Allen key. Apply a little grease on thread and screw-head but not on the shank (to prevent clogging up the pressure compensation system leading into the hollow axle). Recommended fastening torque is 8 to 10 Nm - easily achieved with the normal length of the Allen key. If the skewer tension is too low, the axle may move inside the fork end causing a rattling noise.
The skewer has to be screwed into the nut for at least 5 turns before noteworthy force is necessary to tighten it. You might have to remove a washer on the right side to achieve this.
Fitting the headlamp
The room between the locking-lever of the mounting block for the Brompton front bag system and the mudguard is very limited. The round Lumotec with toggle switch and our E6 with ring switch can be fitted. The lamp bracket has to be appropriately bent to make sure the headlamp won’t touch the mounting block and the brake function is not affected. Mounting at the handlebar means more freedom of choice between headlamps. A good solution is the handlebar bracket made by riese & müller.
Connection of a rear lamp
The generator should always be connected to a 6V3W load. The usual way is the combination of the 2.4W halogen headlight and a 0.6W rear light or a special 6V3W halogen bulb. The permanent use of a 6V2.4W bulb alone will shorten the bulb lifetime radically (not relevant for the E6 headlamp)! We recommend a good quality LED rear lamp with capacitor standlight (e.g. Toplight D plus by Busch+ Müller). The rear lamp should be connected to the head lamp by double wiring, because the bicycle frame with its bearings and links is no good conductor. Most reliable and elegant cables are the Schmidt coaxial cables for rear lamps. The cable for rear lamp with overvoltage protection (item no. 72095) must be used in case the headlight itself is not provided with an integrated overvoltage protection.
Maintenance
The generator is fully enclosed and maintenance free: there are no gears or other moving parts inside. The wiring and lamps should be checked regularly, and any defects repaired in order to avoid dangers caused by high voltage. The ball-bearing cartridges are pre-lubricated and similarly maintenance free in normal everyday use. A slight amount of play is normal with this type of bearing - do not attempt to adjust or regrease them. The aluminium axle and the parts that are pushed on are threadless. They cannot and must not be twisted. To avoid water ingress do not immerse the hub and take care when washing it never to spray water (from a hose etc.) directly at the axle. In case of any problems (e.g. worn bearings, damaged electrical contacts) let your bike shop contact the manufacturer or importer. For warranty claims (5 years from date of purchase) please add a copy of the purchase receipt.
sábado, 21 de febrero de 2009
Problema de sobretensión en sistema con dinamo de buje
Esta semana se me ha fundido todo el circuito de iluminación de la Brompton, luces delanteras y traseras, calculo que iría a unos 40 km/h, al menos eso indicaba el GPS del móvil cuando me quedé sin iluminación
La lámpara delantera una OSRAM 64100LE SERMAN 6V, 2.4W está chamuscada. Como es una lámpara halógena de 6V 2,4W fácil de encontrar ya la he cambiado
Cuando fui a cambiarla miré por casa los otros sistemas de iluminación del resto de las bicis que tenemos y curiosamente en aquellos que tenían halógena indicaba 6V, 2.4W excepto en España, para España 2.1W. Voy a investigar si es algún tema con la legislación española.
En la luz de atrás parece que se ha fundido todo el circuito. La luz de atrás lleva un condensador y aguanta unos cuatro minutos y medio encendida cuando la bici se para. Atrás va montado un diodo de luz blanca con un circuito que va cargando el condensador.
Lo primero que he preguntado es:¿Esto lo cubre la garantía?, entiendo yo que el circuito debería estar protegido contra sobretensiones y más con el precio que pagas por sistema con dinamo de buje. Todavía no se si me lo cubrirá la garantía
Por si las moscas, y no me cubre la garantía he empezado a mirar por la red alternativas
La pieza original QVDYNRLAMCAP con marca Brompton la he encontrado en:
St John Street Cycles, www.sjscycles.co.uk Brompton Rear Dynamo Standlight LED inc ReflectorMirando otras alternativas he llegado a la web del fabricante de la pieza. Spanniga que ahora ya la vende por libre. Es el modelo Spanninga Eclipse XS.
Fabricante: Spanninga http://www.spanninga.nl
Modelo: ECLIPSE Xs Dinamo + 4,5 minutos safe stop