![]() We believe this modification gives you an excellent machine/track combination and is only available from us. The 13.5″ shoe increases the ground pressure to 4.75 psi but you have the advantage of increased traction, keep the larger blade of a “P” model and the tracks are more offset from the machine providing a wider stance and more stability. We can convert the “P” models to an “A” model by changing out the track shoes to an improved 13.5″ (340mm) single grouser shoe or the factory spec 20″ single grouser shoe. Blade width on the “P” model is 8′-4″ and angles to 8′. They are rough riding on rocky ground, do not provide as much traction as the single grouser shoes and tend to break in hard ground applications. These are an excellent low ground pressure pad and are self cleaning and will run in snow without plugging. Some have grouser bar welded to the top for additional traction. On the factory “P” model the shoes are 20″ (510mm) pyramid or swamp type shoes with 3.4 psi ground pressure. On the models that we convert the shoes, we install a slightly wider 13.5″ single grouser for 4.75 psi ground pressure. On the factory “A” model the shoes are a 12″ (300mm) single grouser with 5.1 psi ground pressure. There are 2 letter designations after the model number that show track typeĪ Model = Standard track width. This provides a more open cab design than the direct drive models. U pattern with neutral in the center forward. There is still a clutch if you need it for close in work. You still have to shift to change direction and speed, but the lever is mounted on the side by armrest. This allows shifting without using a clutch. The 3rd forward speed is very fast for overland travel.ĭ21 = power shift transmission or hydrostatic. Very durable and idea for remote location use. Simple, long lasting and more power to the running gear. Very similar to a standard shift truck and same benefits. This is a standard shift, where you operate a foot clutch and shift with a lever mounted on the floor. There are 2 model numbers that show transmission type.ĭ20 = direct drive transmission. The dozers we obtain for sale come in 2 basic models and track configurations. These are fantastic little bulldozers and we have dozens of testimonials to their use and efficiency. ![]() They have a huge line of dozers from largest made to smallest and parts are readily available. Komatsu company, while not well known in Alaska, is a huge construction machinery company with worldwide distribution. For this size dozer you basically have few purchase choices other than older JD and Case 350 models or the Komatsu. They will do a lot of work, you just have to take your time. They are an excellent dozer choice for someone who has a homestead type property and wants to put in their own improvements, a remote site work machine capable of building an airstrip, a residential contractor that needs to work around tight spaces, or just someone who always wanted a dozer to play with. They can be hauled on a 12,000 GVW trailer behind a pickup with a class 5 hitch. The weight on these dozers ranges 8,000-9,000 # depending on options. What i like the most about this company is the way they handle orders and everything is delivered on time.The Komatsu D20 and D21 small dozer line is the only light substantial dozer currently manufactured as new by a major equipment company. “For the past four years i have been a very happy client of AMS construction.Their sales staff is knowledgeable, helpful and very prompt. “AMS is a wonderful resource for rebuilt motors.I have found their service and pricing excellent. “AMS has found heavy equipment parts for me on several occasions.“Saved us a ton of money on parts! Even if they don't know the product line they helped me find a solution.“Many thanks to AMS for going the extra mile and providing a friendly, consistent and all around fantastic service.“They have provided me with quality parts and service for three years without any part failures.and always at the lowest market price.“I highly recommend AMS for your construction part needs.“AMS has found our company both new and used CAT, John Deere and Komatsu parts quickly, while saving me lots of money!.“My experience with AMS has been a pleasure, they have been more than helpful and I am looking forward to further purchases.They have a very helpful staff and will look out for your best interest. “This is the place to contact for all of your construction part needs.Timberjack Feller Buncher Undercarriages. ![]() John Deere Feller Buncher Undercarriages.Caterpillar Track Loader Undercarriages.
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