MEP 831 FAQ for owners or potential buyers

[OverkillTASF]

Does anyone have a source for the hardware in the output terminals? Two of mine are missing the nuts, the cage things, and the little insert that actually presses against the wire.

 

[Guyfang]

I might look for them, if I have a bit of spare time. What have you done to try and find them, so I do not reinvent the wheel, so to say.

 

[OverkillTASF]

I looked through C-1 (Repair parts and special tools list) of the manual and couldn't even pin down the part numbers... but went through again and found that the whole stud (with hardware) is part 11, NSN 5940-00-234-3383. But from there.... Web searches feel like they're in spam-land, nothing appears in stock (even supposing the websites are legit, and I don't have experience in this realm), and there's nothing on EBay.



I could rig something together with COTS parts but I like the original setup and would like to match it!

 

[Guyfang]

This load terminal/ground stud has been used on Army generating since the early 70's. I know that Cummins sells it. I will try and look in the morning for another supplier. There are about 4-6 part numbers if I remember right.

 

[DieselAddict]

Would this not work? You'd have spares.

Main Load Connection Terminal Board Assembly - Oshkosh Equipment

Oshkosh Equipment - Main Load Connection Terminal Board Assembly (5340-01-191-8110)

www.oshkoshequipment.com

 

[kloppk]

The load terminals in the 831 are smaller versions of the ones used in 5KW and up units.

 

[DieselAddict]

Crap, yea you're right. They are smaller.

If you can't find one let me know. I have a parts unit that I've not torn apart yet.

 

[Dewie38]

P/n 69-692-6
The last dash number is the size, 69-692 is the part number for all load studs on all gen sets. then a dash for size.

 

[Guyfang]

These companies supplied the lugs to the Army.

44940

CUMMINS POWER GENERATION INC.

1400 73RD AVE NE

MINNEAPOLIS

MN

55432-3702

UNITED STATES

79343

SCIENCE APPLICATIONS INTERNATIONAL

CORPORATION

155 PASSAIC AVE

FAIRFIELD

NJ

07004-3561

UNITED STATES

93568

HARSCO CORP

BMY-COMBAT SYSTEMS DIV

YORK

PA

17405-1512

UNITED STATES

93742

DRS CONSOLIDATED CONTROLS, INC.

141 NORTH AVE

BRIDGEPORT

CT

06606-5120

UNITED STATES

 

[Guyfang]

Try writing this company a mail.

Split Bolt Connectors - Brass Components Germany

Manufacturing Split Bolt Connectors with Tin Plated Bolts, Nuts, Spacer and Pressure Bar for Copper to Copper, Copper to Aluminium and other Connections.

brasscomponents.de

Give them this tech data:

	WIDTH ACROSS FLATS	0 3/4 INCHES
	OVERALL HEIGHT	2 51/250 INCHES
	MAXIMUM HEIGHT ABOVE MOUNTING SURFACE	1 51/250 INCHES
	ELECTRICAL INSULATION FEATURE	UNINSULATED
	MOUNTING METHOD STYLE	STUD
	MOUNTING THREAD DIAMETER	0 39/125 INCHES
	THREAD LENGTH	1 INCHES
	BASIC SHAPE STYLE	COMPRESSION
	MOUNTING THREAD SERIES	UNC
	CONDUCTOR ACCOMMODATION TYPE	SPLIT BOLT W/O SPACER SINGLE END
	NUT WIDTH ACROSS FLATS	0 3/4 INCHES SINGLE END
	MATERIAL	COPPER ALLOY OVERALL

 

[Mustangsud]

We have a couple of these, and I was shocked at the cost of one of those batteries. So, all of our trucks carry slave cables and we’ve found the best way to start these guys is to use the slave cable. Sure, they can be pull started, but what a PIA.

 

[OverkillTASF]

-- oops doubletap --

 

[OverkillTASF]

Thanks for the specs and whatnot for the nuts. Unfortunately the only place that returned my RFQ for 3 nuts came in at $100 each.

Oof.

Probably gonna contact McMaster Carr and see what the thread is on some of these.

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[Light in the Dark]

If its just the hardware... maybe you just buy something like this and steal what you need:

https://www.supplyhouse.com/Topaz-692-Solderless-Copper-Split-Bolt-Size-6

Edit: Just providing ideas... not sure this is a direct cross for the parts you need.

 

[Guyfang]

Indeed! That's just what we did. Ordered new hardware and just took the nut off. The only time we replaced a load terminal was when the threads were stripped. At that price, you could order on, just to see if it works.

 

[OverkillTASF]

If its just the hardware... maybe you just buy something like this and steal what you need:

https://www.supplyhouse.com/Topaz-692-Solderless-Copper-Split-Bolt-Size-6

Edit: Just providing ideas... not sure this is a direct cross for the parts you need.

Yeah, that's what I'm doing. I skipped McMaster though.... I ordered some Gardner Bender "split bolt connectors" on Amazon. The GSBC-4 connector nuts are sliiiiiightly too small. I've ordered some GSBC-3's and GSBC-2's - will see if we luck out on the threads and the thickness of the slot. I don't have high hopes really.

 

[OverkillTASF]

Yeah, that's what I'm doing. I skipped McMaster though.... I ordered some Gardner Bender "split bolt connectors" on Amazon. The GSBC-4 connector nuts are sliiiiiightly too small. I've ordered some GSBC-3's and GSBC-2's - will see if we luck out on the threads and the thickness of the slot. I don't have high hopes really.

None of the Gardner Bender split bolt connectors have a compatible nut.

 

[Dewie38]

None of the Gardner Bender split bolt connectors have a compatible nut.

If you want to buy 4 brand new load terminals, mounting hardware, nuts and retaining clips pm me

 

[bcheval]

This is all great info. Thank you, guys.
I am having a problem with my 831A. The engine is running well. However, it will only charge the lugs in when I activate (Battle Short) and then close the interrupter. If I start the unit and try to set the interrupter without the Battle short on, the lugs will not charge.
Any ideas?

 

[bcheval]

Note. The engine does not rev when in battle short. However, I didn't think that would be an issue because the unit is not under load.