2021 - Volume #BFS, Issue #21, Page #21
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“Permanent” Replacement Seals For Deere 30, 40 Series Tractors
A Missouri machine shop that got tired of replacing leaky load control shaft seals on Deere 30 and 40 series tractors came up with heavy-duty “PERMANENT” replacement seals.
Boling Machine Shop, Lenter, Mo., says Deere’s seals often start leaking after six months or less. Boling has been making heavy-duty replacements for 30 years. The replacements are machined out of steel with Teflon liners, O-rings, or neoprene washers, depending on model. The O-rings, liners and washers can be replaced without replacing the seals. The 4020 seals also fit 4010, 5010, 5020 and some applications of 4000 models.
The 3020 seal also fits 2510, 2520, 3010 and 4030 tractors. A 4520 seal also fits 4620, 7020, and 7520 tractors. This series sells for $55 a set.
The company also has seals and bushings for newer tractors which include 4440, 4230, 4240, 4320, 4430, 4440 and 6030. They have a wider surface to reduce shaft wear. They sell for $105 per set. We have also added 50 and 55 series.
We also sell load control shafts for most models, 2950, 2940, 2840, 2850, 2855, 2550 and many others. All seals are guaranteed.
Contact: Boling Machine Shop, 2357 Shelby 418, Lentner, Mo. 63450 (ph 660 699-3717; website: www.bolingmachine.com).

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2021 - Volume #BFS, Issue #21