TM 5-2420-230-24-2
Section 5 - Fuel System - Group 05
Injection Pump Repairs (5-21)
B Series Shop Manual
Page 5-41
Shutoff Solenoid Replacement, Stanadyne
DB4 (5-24)
The Stanadyne injection pump is equipped with one of
two types of electrical shutoff devices. Energized to run
(ETR) solenoids are the most common. They are ener-
gized continuously while the engine is running and when
de-energized will cause the engine to shut off. Note the
location of the solenoid arm (1) in the illustration.
The energized to shutoff (ETSO) solenoids are used less
frequently. These are designed to be energized only mo-
mentarily when engine shutoff is desired. Note the loca-
tion of the solenoid arm (1) in the illustration.
Remove the top cover mounting screws.
Remove the four solenoid mounting nuts, grounding strap,
washers and terminal.
L-339