A-A-2538
October 14, 1987
COMMERCIAL ITEM DESCRIPTION
ADJUSTING TOOL, VALVE TAPPET
The General Services Administration has authorized the use of this commercial
item description in preference to GGG-A-00147.
This description establishes requirements for a 1/2 –inch
male drive, screwdriver blade and driving knob hand tool used for adjusting
overhead valve tappets of internal combustion engines while the engine is
running at idle speed.
Salient characteristics.
Material. The material shall be as specified herein.
Design. The adjusting tool shall be similar to Figure 1 and shall
consist of a handle, 1/2 –inch square male drive, screwdriver blade and driving
knob.
Handle. The handle shall be either offset or straight
with strength and durability capable of withstanding a 300 inch-pound torque
load.
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