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  #1  
Old 28-12-17, 11:32
Tony Smith's Avatar
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The hydraulic control unit has 4 ports for hydraulic connections, a rotating control handle, and 3 toggle switches.
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File Type: jpg IMG_7330-1.jpg (171.1 KB, 1 views)
File Type: jpg IMG_7332-1.jpg (194.5 KB, 1 views)
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Old 28-12-17, 11:35
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Two of the toggles are On/Off controlled by the thumb (of the Left hand!), while the third is a momentary contact operated by squeezing the grip. The are no plates indicating the function of these switches.

The hydraulic control is operated by twisting the grip clockwise or anti-clockwise.
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File Type: jpg IMG_7325-1.jpg (223.4 KB, 1 views)
File Type: jpg IMG_7326-1.jpg (177.4 KB, 1 views)
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Last edited by Tony Smith; 28-12-17 at 11:47.
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Old 28-12-17, 11:40
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The pump mounts to a flange by 4 bolts (or studs), and is driven by a splined shaft. It has 2 large ports that are the same size as the supplied hoses (Looks like 3/8" or 1/2" NPT/BSP), and one smaller port which might be for a relief valve or gauge.
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File Type: jpg IMG_7320-1.jpg (179.9 KB, 1 views)
File Type: jpg IMG_7321-1.jpg (195.7 KB, 4 views)
File Type: jpg IMG_7322-1.jpg (214.0 KB, 1 views)
File Type: jpg IMG_7333-1.jpg (174.8 KB, 1 views)
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Old 28-12-17, 11:43
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The hoses are a mixture of flexible rubber and hard steel tube. All appear new/unused.
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File Type: jpg IMG_7336-1.jpg (163.3 KB, 1 views)
File Type: jpg IMG_7337-1.jpg (183.8 KB, 2 views)
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Old 28-12-17, 11:45
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And lastly, the box has this marking on it. Does this help with dating the box? (Sorry don't need help determining the value the box might sell for if we save the cardboard! )
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Old 28-12-17, 12:24
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Looks to be for the M3 Grant/Lee tanks.
Quite similar but not exactly the same as the system used on the Staghound.

Marco
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Old 28-12-17, 19:29
marco marco is offline
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The hydraulic motor is the same as on the Staghound armored car.
Attached photo from the motor in my Staghound.
Nearly impossible to get a good photo from the dataplate..

Marco
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  #8  
Old 02-07-19, 22:03
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Quote:
Originally Posted by marco View Post
Looks to be for the M3 Grant/Lee tanks.
Download the manual TM9-1750H Hydraulic Traversing Mechanism(logansport) for Medium Tank M3 here: http://www.theshermantank.com/downlo...-like-manuals/

Early Sherman tanks also used the Logansport system: http://www.theshermantank.com/sherma...r-of-the-tank/

HTH,
Hanno
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