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Spring height check.

Dear MSG Half-Mast,

Is there a torque requirement for the front fuel tank springs on the M978 HEMTT Fuel tanker? These springs hold the fuel tank to the vehicle's frame.


Dear SGT T.M.,

There is no torque requirement for the front fuel tank springs.

However, take a look at Page 2-46 of Change 2 in TM 9-2320-279-20-1 (Apr 93). It has the lowdown on a height check for the springs.

But before you check the spring's height, tap the bottom of the spring bolt to make sure it's seated properly.

The height of the top portion of the spring should be between 3 1/2 to 3 3/4 inches. The bottom portion should measure no less than 3 1/2 inches. Also, make sure the spring's rubber mount measures at least 3/4 inch.

Have your mechanic replace a wornout spring. Never try to shim a short spring with washers.

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Title Annotation:M978 HEMTT Fuel Tanker ...
Publication:PS, the Preventive Maintenance Monthly
Date:Mar 1, 2004
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