Posted by Ozarker on January 29, 2014 at 18:33:29 from (70.195.5.214):
In Reply to: NH 488 posted by Lance Kerr on January 29, 2014 at 08:56:43:
I ran a 488 of the same vintage a number of years. It needed a fair amount of adjustment when it was new from the dealer.
1. I did experience the reel pulsation you mentioned. The large diameter pulley on the end of the reel is constructed of two halves riveted together. The rivets were very poorly installed and allowed the pulley halves to separate and in turn made the reel appear to pulse. Grind out the rivets and replace with bolts and nylock nuts. There is also a reel speed adjustment using shims on the reel drive pulley.
2. Header flotation will affect cutter bar performance. Check to see if it has the correct ground pressure listed in the manual with a bathroom scale. Note: the drive side of the header is heavier and will require more spring tension.
3. The machine is asking the reel to do a quite a lot. Keep the guards clear, pick up downed crop, and transport the crop up to the rollers from the sickle. In shorter crops it gets to be a real challenge. The cam track can be rotated to change how the reel feeds the rollers in a short crop. Unfortunately, the manual does not give a lot of help on reel adjustment.
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