Granger 4LM39B Standby Generator

First, determine what is REALLY wrong.

Starters can be rebuilt.

Troubleshooting unknown problems half way around the world is only possible with divine intervention.

Replacement Parts - Grainger Industrial Supply

or, http://www.generac.com

You're a saint.

Thank you very much for your very helpful suggestions. I will do as you have suggested and will let you know the outcome. Have a great evening

Ken

Not to mention the beryllium poisoning from tampering with Beryllium copper parts (if they are).

Did you check to see if the engine will turn by hand? Usually you can turn them with the fan you do not need to rotate more than 90 degree usually to eliminate a stuck or seized engine. After that is done and the engine turns then focus on the starter solenoid. I am sure you know the routine.

Use the telephone to order a replacement from the equipment manufacturer. Many will take a credit card payment and despatch can then be the same day in most cases.

Is the starter solenoid external to the starter or built into the Bendix of the starter?If external,they can sometimes be disassembled and repaired.The older Ford types have a copper coin shaped moveable contact that closes against the side post contacts,which are flat and square,integral to the side posts.I have simply turned over the contacts on the side posts,and reversed the center round contact and it is as good as new.You will have to drill out the rivets and replace them after repair.

However,as cheap as they are, repair is only a last resort.

Here is a link for a typical solenoid of that type.http://www.griggslawnandtractor.net/ford-tractor-starter-solenoid-12-volt-d2af11450aa?gclid=CP-xsq7DgcsCFQIfhgodHEYONAAs

before you disassemble anything, lightly tap the starter with a hammer. this will most of the time dislodge the bendix and the starter will work. have been doing this little trick on my 1974 jim dandy tractor about once every year or two and have never had to remove anything. used to do it on the older autos also where the starter was about 5x's the size that they are now.

Well, partner, since there is no 4LM39B listing, I suggest to you that you return the "B" model for the "A" model, or even the one with no "A" or "B". Apparently, the "B" model just clicks, the "A" model cranks and winds down the battery, then clicks.

ONLY the 4LM39 is supposed to actually start with a new battery. I suggest to you either change the nameplate, or return your defective unit to Grainger for one with the correct nameplate on it, then it will start.

Are you certain that this is a Granger 4LM39B Standby Generator and not a Chevrolet Cavalier?

Well, it says Dayton on the housing, which used to be Granger's brand. When I called Granger, they recognized the model number and even verified the starter motor part number which is: 20692 However, they said that they need to go the manufacturer to get the part for me. Apparently the manufacturer is Generac. A few days later I got a call back from Grainger and their "motor" person told me that this starter motor is from Mitsubishi and it is used in their cars with 1.5L engines and I should just go to an auto part shop and buy it from them.

I am going to try some suggestions made by others (tap the starter and to make sure that the engine is not ceased), before buying a new starter motor. I was also going to apply 12V to the starter motor directly (it is off the unit, as I took it off this morning, very simple, attached with only two bolts).

I appreciate everyone's useful suggestion

KB

Be certain to have the starter firmly clamped down because when you connect 12V to it, the inertia of the rotor will yank the starter out of your hands and potentially cause serious injury. Please.

Here is a good link on replacing and testing the solenoid.

https://www.youtube.com/watch?v=PV74-_wK0fY

A note on the link I provided:

A healthy commutator will be chocolate colored,not shiny.
Cleaning the commutator slots is a good idea,but use Flint paper to clean the commutator afterwards,not Emory Cloth.
Emory cloth is conductive and will give problems over the long term.
A spray of contact cleaner or brake cleaner is also a good idea after cleaning.
Also,when re assembling the brushes,use clean gloves.
The grease will interfere with the brush contacting the commutator and give problems.
Good luck.