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| G2 and Aktiv Grizzly the swedish way | |
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| Tweet Topic Started: Dec 26 2009, 08:15 AM (3,052 Views) | |
| Grizzly | Dec 26 2009, 08:15 AM Post #1 |
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Nice to find a cross country snowgrooming forum! Over here snowgrooming and tracksetting is a big issue for a very small number of people, so it is not so many people to disscus grooming and tacksetting with. (On the other hand, all skiers that have newer touched a sleed knows very well how to groom...?) I have seen a lot of interesting threds here about equipment, so now I think it is time for me to present my modifications to a Tiddtech G2, medium size and a Aktiv Grizzly sleed. Three years ago we decided to by new grooming equipment. As my club is close to the coast we often get temperatures close to 0 degrees centigrades and a lot of ice in the tracks. We needed something that could scrach ice, and we also wanted to do everyting in one pass. Soon we found out that a G2 or a Ginzu should be the best choise. At the end we chose G2 becouse it was a litle bit wider renovation width and it was made of steel. With our tricky tracks I know that we would need to weld on our equipment after hitting obsticuls in the snow. As an engineer with a past as a welder I always like to make things better. This is what I have done: Battery box and controlls: I did not like the battery box in the front of the G2. It is heavy enoght in the front anyway. So I welded a console to the frame over the knife for the battery. On the console I also mounted a relay-box so I could only put a thin wire to the sleed. The relaybox is equiped for knife, two tracksetters and worklight. It is also equiped with a low voltage protection to protect the battery and via a special buttin it is possible to lift the knife and tracksetters when voltage gets low to be able to get home without getting stuck. Controlls are fixed on the sleed in front of the seat. Lights: We have a lot of problem with skiiers that does not leave the track when we groom, so I added position lights on the side of the groomer. I don not want anyone to get hit by the frame and fall into the knifes... A working light in the back was also nessesary as we usualy groom in the dark hours to minimize the number of skiiers in the tracks. Gooseneck: One winter without gooseneck was enougt. It was to expensive to order a gooseneck from US, so I build one on my selfe. It is made from a 1"3/4 waterpipe and an ordinary trailer ball hitch on the sleed. The sleed is modified with a special frame that alow the pulling force to reach the sleed main frame. I think this gooseneck is a loot more rigid then the ones delivered with the grommer. The trailer hitch is hade for heavy pulling in an other way then sleed equipment usualy is. I got a lot of dammage to the sleeds ordinary hitch the first winter with the G2. As I do not like to drill in steel pipes, al equipment on grommer and sleed is monted on welded consoles. Otherwise I thing rust will soon kill the equipment. I hope someone find these modifications interesting. |
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| Grizzly | Dec 26 2009, 08:21 AM Post #2 |
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| Grizzly | Dec 26 2009, 08:22 AM Post #3 |
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| semntrails | Dec 26 2009, 11:34 AM Post #4 |
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I like the home made goose-neck and extra lighting. We've got a Ginzu and keep thinking a goose-neck might be nice but haven't wanted to buy one at full price - making our own might be a cheaper option. I like how it's painted to match too. |
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| air19 | Dec 26 2009, 08:19 PM Post #5 |
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Hey Grizzly, Thanks for taking the time to right this up and post pictures. Those are nice improvements to a stock G2. I have a couple of questions. 1. I really like the lights. They look like they will throw a good beam on your work area. Can you describe which ones they are and where you got them. Also can you get through the night with one battery with those lights on the entire time and using the actuators a lot? How many hours is your grooming run? 2. Can you post a closeup of the battery box, especially the back side. At what voltage does your circuitry stop allowing the standard draw from the actuators, before you have to hit that special button to move them one last time? 3. I like the gooseneck - is that 1 and 3/4" water pipe about 1/8" thick? Just trying to get a feeling how strong it is. Thanks. |
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| e2spear | Dec 26 2009, 09:33 PM Post #6 |
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Nice looking Grizzly. I owned one a few years ago, but it was not that nice. |
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| Grizzly | Dec 27 2009, 05:12 AM Post #7 |
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Air19>> Lights are working lights for tractors and other machines from a shop with cheap car parts. I dont know the brand, probably something chinese. But I think they are like most working lights. The light on the grommer uses the groomer battery, and the light on the sleed uses the sleed battery. I designed the electrical system to work with our yamaha also, and that sleed has a realy bad electrical system, so I wanted the groomer to work undependent of the sleed. I use to turn off the lights on the groomer when I do not need them, and save the battery for the classic tracks. I use to groom for three to four hours, and have never emptied a 55Ah battery, but as I said, lights is not on all the time. The voltage protection turns of at about 10.5V. Enougt to save the battery, and to get home. I build that feature becouse we are a lot of people grooming in the club, and some of them use to get stuck in the most unlikely ways. Refer to the discussion about operator vs driver... A 1"3/4 Waterpipe is 48mm outside diameter and 40mm inside diameter, so the material is 4mm thick. Lets say 5/32. I think it is strong enoght. I think the weak point is the front of the groomer. I get a bit of "swing" in the groomer at some speeds. I will try to stabilize the connection between the groomer and the gooseneck a bit and see if it helps. Picture of the battery box from behind attached. It is taken before I build the gooseneck and moved the light on the sleed. I will take some more pictures tomorrow for our homepage, so I will try to take a better one then. |
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| Steve.M | Dec 27 2009, 07:17 AM Post #8 |
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Welcome Grizzly! Nice to hear your comments about the G2 and just in general, the modifications you've done. Seems all of us here tweek equipment to meet our needs-I think the ideas come from too many hours inhaling two cycle fumes! |
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| Grizzly | Jan 4 2010, 03:12 PM Post #9 |
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Got a question about battery box. This is how it looks. Under the top there is a automatic charger, just connect the cord and the groomer is ready for work when you need it. Of couse the charger is possible to remove and use for the sleed if it needs to be charged to. On the side is the relaybox. A little bit stuffed, but I equiped it for two tracksetters if my club finds some money to buy one... Up to the right is the unit that disconnect the battery if voltage is below 10.5 volt. On the picture where the box is closed you can see the buttons for lifting knife and tracksetters if voltage is to low. |
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| Grizzly | Jan 4 2010, 03:12 PM Post #10 |
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| air19 | Jan 4 2010, 04:56 PM Post #11 |
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Thanks Grizzly - nice work. Looks like you are an electrical engineer besides being a groomer. |
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