m715
Member
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- Location
- western ma.
I just bought a MEP-803A diesel gn set.While searching the net for the TM and maintenace manuial I found a post on PS monthly of a promlem that both the 5kw and 10 kw tqg have.I am posting the info here for anyone intersted.The problem is with the A1 bridge rectifier circut.During engine start up voltages can peak at over 400 VAC across the quad winding circuit.this can cause the diodes to short out wrecking the voltage regulator and stator.The fix is a fuse,3 amp 250vac time delay mdl-3 nsn 5920-01-322-6986.Install the fuse between terminal 8 of the AI voltage rectifierand the Q1 quad winding circuit.I will do this mod to mine before I use it.this is a great gen set it really is quiet and only has 32 hours on it.I paid 2,500 and think its worth it.hope this post helps someone from damageing a great gen-set.