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NEWS | June 30, 2022

M1270 MMPV: Easily Access Slave Receptacle

M1270 MMPV equipped with interrogation arm enabler system
Photo by William Beach

Dear Editor,
        
My shop discovered a problem with the M1270 MMPVs that are equipped with the interrogation arm enabler system. The problem is that the access door to the slave receptacle hits the system’s hydraulic motor. See for yourself below:
 
Receptacle door hits hydraulic motor
Receptacle door hits hydraulic motor
 
 
The hydraulic motor doesn’t allow the access door to open far enough so that you can easily connect a slave cable. Attempting to wedge it into the half-open door can damage the slave cable.
 
Wedged slave cable
Wedged slave cable

We came up with an inexpensive and very easy solution that works and ran it past TACOM. They’ve approved our remedy for the MMPVs that have the interrogation arm enabler system installed.
        
Mechanics can replace the spring pin on the receptacle door with a hair pin, NSN 5315-01-443-8033. They can get about ten (10) of these hair pins for $1.
        
The hair pin allows them to quickly remove the door for full access to the slave receptacle without using any tools.

Hair pin installed on door
Hair pin installed on door
        
Mechanics must replace the door after the vehicle is running or after they’ve completed maintenance that required them to remove the access door.
        
Again, it’s easy and no tools required!
 
Samuel Myres
USAMC

Editor’s note: That’s a great fix, Mr. Myres, and thanks for sharing it!

Soldiers, note that TACOM has approved this solution and anticipates making it a permanent configuration change in the future. 
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