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Author Topic: 8345 - No Electrical Power  (Read 12238 times)

Haymaker

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Re: 8345 - No Electrical Power
« Reply #5 on: June 16, 2016, 01:12:06 AM »
Yeah 18 V is getting up there. Normal is in that 14 to 15volt range.  What is the voltage at high idle with your lights on?  For that fuse to blow something was drawing a pile of amps. 
  • Tractors- '93 Belarus 825 with loader and others...

BinVa

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Re: 8345 - No Electrical Power
« Reply #4 on: June 15, 2016, 09:25:55 AM »
I did find the PV50 fuse blown - have replaced w/a 50a maxi-fuse and now have electric power to the dash and starter. Seems to be an over-charge issue, that caused the original problems. 

Looks like the voltage regulator is the problem - output is 14.2v @ idle - 17.8v @ 1800rpm.

My plan is to replace the internal voltage regulator
I can find 2 different solid state regulators and 1 resistor type listed for the 14v 700w alternator, I have the resistor type.

Are any of these components interchangeable or a better option? Thanks. B
  • 8345 w/2846QT bushhog loader
Belarus 8345 and Several Green Tractors

BinVa

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Re: 8345 - No Electrical Power
« Reply #3 on: June 10, 2016, 08:24:38 AM »
I will post some pics this evening.
Pull started the tractor w/batteries disconnected.
Checked charging system voltage - voltage output at 13.9v-14.1  - did not check for amps.
Still no power to dash fuse panel - lights or gauges
Have not checked the key switch yet - but that's next.
Do you know the pin-out of the 12v/24v solenoid? I know the input load lines are positive from 1battery and neg. from the other. Are all attached line leads positive(+) coming out? I have 1wire(red) testing as neg.(-), which seems odd, but I don't always put faith in color coding.  Thanks. B.
  • 8345 w/2846QT bushhog loader
Belarus 8345 and Several Green Tractors

Haymaker

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Re: 8345 - No Electrical Power
« Reply #2 on: June 10, 2016, 12:50:01 AM »
Yes its a basic manual trans, it should pull start like an older car/truck with a manual trans.
As for electrical you must have a blow fuse, bad connection or something.  Double check things something is at fault. Post some pics of the battery box, altenator, and fuses in the dash maybe I can see something.
  • Tractors- '93 Belarus 825 with loader and others...

BinVa

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8345 - No Electrical Power
« Reply #1 on: June 09, 2016, 12:19:41 PM »
I have an 8345 which has lost all electrics(no start, lights, gauges). I have power to the starter/solenoid if jumped at posts.
A little history of the onset of the issue. After several hours working in a rain(if pertinent), the radio blew(fried internals), volt meter to 15v plus, overheated 1 battery.
After disconnecting the batteries and allowing to cool. I reconnected the batteries and now have nothing working.
  I have load tested the batteries and they check out ok.
  Master disconnect(ground switch) tests to be functioning.
  12v/24v switch seems to function properly(voltage on/off at load lugs w/master switch on/off), I did have to replace both fuse strips after blowing while jumping the starter solenoid, where not blown during initial inspection.
   No fuses blown in dash fuse block - No power to positive side of fuses.
Can the line wires at 12v/24v switch be tested?
Am I missing a fuse somewhere?
Any help is greatly appreciated - I need this tractor running quickly.
Is there any harm in pull starting and checking the charging system?
Thanks. B.
   
 
  • 8345 w/2846QT bushhog loader
Belarus 8345 and Several Green Tractors