working on a scag tiger cat 61. keeps blowing fuses when pto is in operation.

Kev71h

Forum Newbie
Joined
Jul 13, 2019
Threads
0
Messages
2
  • / working on a scag tiger cat 61. keeps blowing fuses when pto is in operation.
5.5 amp draw calculated isn't that far out of spec. But that could go up when the clutch heats up. Did one on a DR field mower a couple weeks ago with an ohm reading of .5 ohms. which caused some serious wiring issues.

Would it be interesting to note that my Tiger Cub is a 2004 (I think) with only 441 hours on it?
 

ILENGINE

Lawn Pro
Joined
May 6, 2010
Threads
39
Messages
9,865
  • / working on a scag tiger cat 61. keeps blowing fuses when pto is in operation.
When it comes to electric clutches hours don't seem to matter. One will go over 1000 hours and the next less than 50. It seems the first symptom a lot of time when the clutch is going bad is it takes out the pto switch, but not bad enough to blow the fuse.

Had a grasshopper this year that killed the pto switch but never blew the 10 amp fuse. Clutch tested 1.6 ohms which is around 7.5 amp draw. DR with the shorted clutch had a 20 amp fuse connected between the 20 amp voltage regulator and the battery. The only way that fuse was going to blow was if the regulator shorted to ground. The constant 20 amp output of the regulator due to the shorted clutch actually melted the fuse holder.
 
Top