ARMY TM 9-6115-670-14&P
4-101
REPLACE
a. Remove three nuts (4, Figure 4-26) securing bus bar (6) to engine glow plugs (8).
b. Tag and remove lead (5).
c. Remove bus bar (6) and three washers (7).
d. Using compressed air, thoroughly clean area around engine glow plugs.
e. Remove three engine glow plugs (8).
f. Remove nut (1) securing lead to intake glow plug (3). Tag and remove lead (2).
g. Remove intake glow plug and washer (3).
h. Install three engine glow plugs (8). Torque between 5.8 and 10.8 ft-lbs (7.8 and 14.7 Nm).
i. Install three washers (7) and bus bar (6) on engine glow plugs.
j. Install lead (5) on bus bar (6). Remove tag.
k. Secure bus bar (6) to engine glow plugs (8) with three nuts (4).
l. Install intake glow plug and washer (3) and torque between 28.9 and 32.5 ft-lbs (39.2 and 44.1 Nm).
m. Install lead (2) on intake glow plug (3) and secure with one nut (1). Remove tag.
NOTE
The APU contains four glow plugs. Three are used to
heat the engine cylinders. The other is used as an
intake manifold heater.
WARNING
Compressed air shall not be used for cleaning purposes
except where reduced to less than 29 pounds per square
inch gauge (psig) (199.94 kPa) and then only with
effective chip guarding and personnel protective
equipment. Compressed air is dangerous and can cause
serious bodily harm if protective means or methods are
not observed to prevent chip or particle (of whatever
size) from being blown into the eyes or unprotected skin
of the operator or other personnel.
