- Joined
- Feb 7, 2013
- Messages
- 2,495
A new project followed me home the other day and the first main thing to work on was the non-functional alternator.
I took the alternator apart and tested the diodes and the field coil and all that tested out fine. The easiest repair I
could devise was to use a 35 amp alternator from an old Nissan Sentra. The belt on the Nissan was a flat belt
design but good enough to test the alternator on the tractor. It turned out to work fine. The only things left to do
were to machine a pulley to fit the new alternator and make some wiring adapters to hook up the regulator wires.
So, it's all done now and working just fine with almost 14 volts reading on a volt meter with the engine running.
This tractor is fairly old but is 4 wheel drive with power steering with a loader attached that works fine after
reworking the bucket that was abused and welded on apparently to attach a boom on it or something. So
the project continues as I do maintenance, change fluids and work on various things that need attention. The black spot in the bucket is where I cut out a 7x8 inch piece of steel and fitted in and welded in a new replacement piece. I must say I was impressed with
my Dewalt angle grinder with 4.5 inch cut off blade that made easy work out of removing the damaged area.
Here's the replacement alternator installed on the tractor with home made pulley. The old alternator needs a regulator I think so will keep it
around and hopefully replace the regulator assembly.
The rear tires on the tractor are really badly weather checked so not sure what to do about that other than replace them. Maybe I will run it till
one fails and deal with it then. Today I will be looking at the injection pump on the Isuzu engine to determine why the engine starts easily but
quits when the key is dropped. There is a solenoid connected to a spool valve that is likely causing the problem. It runs like a clock once it does
get running.
I took the alternator apart and tested the diodes and the field coil and all that tested out fine. The easiest repair I
could devise was to use a 35 amp alternator from an old Nissan Sentra. The belt on the Nissan was a flat belt
design but good enough to test the alternator on the tractor. It turned out to work fine. The only things left to do
were to machine a pulley to fit the new alternator and make some wiring adapters to hook up the regulator wires.
So, it's all done now and working just fine with almost 14 volts reading on a volt meter with the engine running.
This tractor is fairly old but is 4 wheel drive with power steering with a loader attached that works fine after
reworking the bucket that was abused and welded on apparently to attach a boom on it or something. So
the project continues as I do maintenance, change fluids and work on various things that need attention. The black spot in the bucket is where I cut out a 7x8 inch piece of steel and fitted in and welded in a new replacement piece. I must say I was impressed with
my Dewalt angle grinder with 4.5 inch cut off blade that made easy work out of removing the damaged area.
Here's the replacement alternator installed on the tractor with home made pulley. The old alternator needs a regulator I think so will keep it
around and hopefully replace the regulator assembly.
The rear tires on the tractor are really badly weather checked so not sure what to do about that other than replace them. Maybe I will run it till
one fails and deal with it then. Today I will be looking at the injection pump on the Isuzu engine to determine why the engine starts easily but
quits when the key is dropped. There is a solenoid connected to a spool valve that is likely causing the problem. It runs like a clock once it does
get running.
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