What Cat is this tool for please ?

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Gordon-M

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I've just picked up an Armstrong Wrench here in the UK, marked 4B-7617. When I asked around I got this feedback;

"4B-7617 wrench number is a Caterpillar part number. My data source does not show which Cat models it was used on. The FSN is 5120-423-9412. The unit price in 1955 was $2.00"

... but now I'm trying to pin down what the wrench does, and what machine it was issued for. Anyone know?

[attachment=34468]4B_7167a.JPG[/attachment]
[attachment=34469]4B_7167b.JPG[/attachment]

Gordon McMillan
Scotland

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Mon, Mar 21, 2016 2:34 AM

Old Magnet

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The 4B7617 is used in conjunction with 4B7618. They are used for fuel injection pump lifter adjustment on engines with forged body fuel injection pumps. Lifter height is set with the 4B7617 (fits over the yoke) and the lock nut is tightened with the 4B7618.

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Mon, Mar 21, 2016 3:32 AM

ag-mike

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Reply to Old Magnet:

The 4B7617 is used in conjunction with 4B7618. They are used for fuel injection pump lifter adjustment on engines with forged body fuel injection pumps. Lifter height is set with the 4B7617 (fits over the yoke) and the lock nut is tightened with the 4B7618.

u b the man om! google posters say something about it being a battery wrench. what vintage is it?

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Mon, Mar 21, 2016 3:44 AM

Old Magnet

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Reply to ag-mike:

u b the man om! google posters say something about it being a battery wrench. what vintage is it?

Used on all Forged Body Fuel Injection pumps from the 1930's until the change to compact fuel injection pumps in the 60's.
Covers 3-3/4", 4", 4-1/4", 4-1/2", 5-1/8", 5-1/4", 5-3/4", 6-1/4" Bore engines.

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Mon, Mar 21, 2016 6:30 AM

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