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### Descrição do Produto
O Polia Secundária RT400 GT79244 – MIA12482 da General Transmissions é um componente essencial para o funcionamento eficiente de diversos modelos de veículos e equipamentos motorizados. Este produto é uma peça genuína OEM, garantindo a qualidade e a durabilidade que você espera de um fabricante renomado. Com o número de peça GT79244, este polia secundária é projetado para oferecer desempenho superior e confiabilidade em aplicações exigentes.
A polia secundária RT400 é fabricada com materiais de alta resistência, proporcionando uma longa vida útil e resistência ao desgaste. A compatibilidade com o número de peça OEM MIA12482 assegura que você está adquirindo um produto que se encaixa perfeitamente em seu sistema de transmissão, minimizando o risco de falhas e maximizando a eficiência do motor.
### Instruções de Uso:
Para garantir o melhor desempenho do Polia Secundária RT400 GT79244, é fundamental seguir as instruções de instalação e manutenção recomendadas. Antes de instalar, verifique se todas as peças estão limpas e livres de detritos. Utilize ferramentas adequadas para a instalação, garantindo que a polia esteja firmemente fixada. Após a instalação, realize testes de funcionamento para assegurar que não há ruídos anormais ou vibrações. Recomenda-se também realizar inspeções periódicas para verificar o estado da polia e outros componentes do sistema de transmissão.
### Características do Produto
– Material de Alta Resistência: Fabricado com materiais que suportam altas temperaturas e pressão, garantindo durabilidade.
– Compatibilidade: Projetado para se encaixar perfeitamente em modelos específicos, evitando problemas de instalação.
– Desempenho Superior: Proporciona uma transmissão de potência eficiente, melhorando a resposta do motor.
– Facilidade de Instalação: O design da polia permite uma instalação simples e rápida, reduzindo o tempo de inatividade do equipamento.
– Genuinidade: Peça genuína OEM, assegurando que você está utilizando um produto de qualidade superior.
### Perguntas Frequentes (FAQ)
Pergunta: O Polia Secundária RT400 GT79244 é compatível com meu modelo de equipamento?
Resposta: Para verificar a compatibilidade, consulte o manual do usuário do seu equipamento ou entre em contato com o fabricante, utilizando os números de peça GT79244 e MIA12482 como referência.
Pergunta: Como posso garantir a durabilidade do Polia Secundária?
Resposta: Realize manutenções regulares e inspeções visuais para detectar desgastes. Além disso, siga as instruções de instalação corretamente para evitar problemas futuros.
Pergunta: Existe garantia para o Polia Secundária RT400?
Resposta: Sim, como um produto genuíno OEM, ele geralmente vem com garantia do fabricante. Verifique os termos específicos no momento da compra.
Pergunta: Posso instalar o Polia Secundária eu mesmo?
Resposta: Se você possui experiência em mecânica e as ferramentas adequadas, a instalação pode ser feita por conta própria. Caso contrário, recomenda-se procurar um profissional.
Pergunta: O que fazer se o Polia Secundária apresentar ruídos após a instalação?
Resposta: Se ruídos anormais forem percebidos, verifique se a instalação foi feita corretamente e se todas as peças estão bem fixadas. Se o problema persistir, consulte um mecânico qualificado.
Wynn –
This part was a perfect match for the factory one. Word of warning watch the transmission removal and re-install videos! There are several steps
That have to be done in order. It’s not hard to repair just several steps to do so.
Raymond –
Loved that the order came sooner than expected. Replaced the pully on my John Deere as the speed had slowed considerably but the new pully brought it up to par. Thank you very much
Rick Plavnicky –
This is a review of the General Transmissions Secondary Pulley RT400 GT79244 – MIA12482 sold by General Transmissions.
First, General Transmissions is responsive to questions online through Amazon. I had a few and I saw responses in minutes to hours. Also, fulfillment was quick and actually exceeded their estimate by a few days.
The kit of parts is complete as shown in pictures, and includes a four-page (2 sheets) set of instructions as well as a two-page (single sheet) troubleshooting guide.
All included parts are as described and fit correctly.
The instructions recommend the use of Loctite 454 on all fasteners. Loctite 454 is a general-purpose adhesive gel used to bond dissimilar materials. This is somewhat different than Loctite’s thread-lock products. Loctite 454 makes sense for the 4 screws securing the driver pulley system because the screws thread into plastic.
For my application – a John Deere D-105 mower – it was necessary to remove the mower deck and rear wheels, and then to remove the transmission before installing this kit. Start-to-finish, the work required to install this kit of parts is easy and straightforward. The most difficult step is installing the screw atop the spring washer. I used the handles of Channellock pliers to compress the spring washer and spring while a helper threaded the screw into the transmission input shaft. I finished by torqueing the screw to its specification.
I noticed a slight discrepancy with regard to the specification that screw’s torque. The included instructions state 19.5 inch-pounds, plus or minus 1 inch-pound, which converts to 1.6 foot-pounds. Both the General Transmissions rep answering a question posted online and a General Transmissions video state 2.3 foot-pounds. The difference is admittedly small. I pointed it out to the rep online and they indicated they’d check into it. “Although it is a small difference we want to be sure we are sharing the correct info, especially in both places- on line and in the included instructions.” I think that’s an excellent response, and it arrived within 45 minutes of my posting.
There was one other point at which I had some concern. The replacement drive belt was marked with what appeared to be direction-of-travel arrows, while the original belt did not. There was no mention of this in the instructions so I was uncertain as to whether the directional orientation was important or not. I needed to temporarily disable a safety switch and briefly start the motor to determine the correct rotation. It might be a good idea to check and determine belt travel direction for your application BEFORE disassembly.
Wow, there sure is a lot of plastic in there! I think that if the pulley halves (labeled ‘mobile flange’ and ‘fixed flange’ were made of metal – say, aluminum – then they’d never have failed in the first place. Since the manufacturer has been so responsive I’ll likely pose that question online.
Concluding, this is a fine kit of parts for making this repair. The price is fair. Performing the work yourself will absolutely save a ton of money over having it done commercially. The work is easy and doesn’t require anything more than common hand tools. The work can be handled easily by one person, although having a helper to place the screw I mentioned and to assist in lifting the transmission back into place is not a bad idea.
As to why this repair becomes necessary so quickly (112 hours of residential use, in my case), well, that’s a different kind of question altogether and not covered in this review.
I plan to explore that, as well as my particular failure mode (with pictures) and what I did to try to repair it, on my blog. Watch for it.
Musculr –
Replaced a variator on a customer’s D105 and this part went in quite easily, after finally getting the old variator off the shaft. That wasn’t fun. This kit works well and I modified by adding a thin fender washer to the spring retaining screw to beef up that top spring retainer collar. That’s still quite thin metal on this replacement unit and the problem with these are, the normal use vibration of that screw under the retainer cap for the spring; it wears the cap out and blows off the top through the now-enlarged (and weakened) screw hole. This will prevent that from happening. Read about doing this on a John Deere Forum. Anyway, recommend this kit for a good, inexpensive solution. And yes, the deck AND the transmission has to come out to do this job. Just watch out for the position of the mower (not blade deck but the actual PTO belt to the transmission) drive belt in relation to that new variator spring when you replace the tranny. The belt needs to be on the outside of the spring. If on the inside, it’ll rub the spring and destroy the belt and your brand-new variator. Follow the instructions and call the gentleman from General Transmissions if you have any question, they are great.
CMB –
Came from Texas, fit and worked properly
John Parks –
Somewhat difficult to install for the average garage mechanic. This is the best price for these parts I’ve found and I’ve done this a couple other times. I would not recommend a John Deere product (ie. D105 riding mower) that requires this variable speed pulley arrangement as at least for me this is a high-maintenance part not very well engineered by John Deere.
DD Netherland –
Great price and looks just like the one that came off my John Deere D105. It’s kinda hard to get to without removing the axle bit it can be done. I collapsed the spring in a vice and used small zip ties to hold it collapsed. I then installed it on axle ,put in screw and then cut zip ties. Kinda hard to cut out zip ties but they can be pulled out with needle nose pliers. Takes about 20 minutes to do. Most of the time is getting zip ties placed to hold collapsed spring.
Paul –
This kit is high quality & half the cost of John Deere’s kit. Kit was very easy to install.
I contacted General Transmissions to request fast shipping as my tractor broke when in the middle of mowing my one acre yard.
Rick at General Transmissions quickly responded telling me that they ship priority mail. They shipped my kit the very next day. Their speedy customer service was of great convenience for me. I will certainly do business with the again if I need another kit.
Amymingee –
It worked good on our John Deere riding mower.
Jennifer Staub –
Product fit perfectly at a great price. Even came with some instructions and troubleshooting information. Was delivered early.