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#11
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I'm running a 3.55" pulley from McMaster Carr on my QA42A/782 combo, with a napa belt. Works good.
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RUN IN THE RED 782 w/50c deck (red); 782 dual stick, 44c deck (y/w); 1050 w/38c deck; 1864 w/54" GT deck; 1872 project Cub Cadet Pro Z 560 L 42" power angle snowblade, #2 tiller, 2-QA42a snowthrowers, 450 thrower, #2 cart; 54" Haban blade; Brinly box blade, 48" dethatcher, moldboard plow; Agri-Fab sweeper 1200, 1863, 1864 parts machines |
#12
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QA 42 Snow Blower Pulley Size
The original pulley on my QA42 was 4 -1/2" in diameter, and used only a 3/8" wide belt. The problem I had with my 1650 with a QA42 snow blower in wet, heavy snow was the drive belt was the fuse for the snow blower. I could fail the belt long before using all of the available engine power under a continuous load, even with a new belt and it properly tensioned. I went to a local farm supply store (Farm & Fleet around here) to source a 1/2" wide belt and 4-1/2" pulley for the snow blower gear box. Although doing so, resulted in needing a Gates A30 belt, that combination eliminated my drive issues. The pulley I used was a taper fit type with two bolts to clamp the pulley to the tapered sleeve for the snow blower gearbox shaft diameter. I will also mention to spent some time confirming the pulleys are in alignment before tightening the pulley to the shaft sleeve.
Hope this helps. |
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