MARINE CORPS TM 6115-34/8
6-3. ELECTRICAL HIGH PRESSURE FUEL
Electric Motor Repair.
(1) Commutator Turning Procedure.
armature shaft in
with female center.
machine lathe with
Support slotted end
(b) Set speed at 2000 rpm and
turn a smooth finish to a maximum of 16
usually give best results.
little stock as is required in order to
(c) Use stiff-bristled brush to
remove any copper chips from commutator
If it is
commutator to a diameter less
(2) Replacing Broken Brush Guides.
(a) Remove setscrews (1, figure
6-6) from rear end bell (2) to release
brush guides (3).
(b) Heat brass insert in brush
guide with soldering iron. When solder
pull terminal clip (4) and
leadwire assembly (5) out of brush
(c) Ensure that terminal clip
is properly attached to leadwire and
free of excess solder.
(d) Remove brush guide.
(e) Insert new brush
Ensure that set screw hole is alined
with hole in rear end bell.
Put drop of thread-
locking compound (MIL-S-46163) on each
(g) Make sure leadwire assembly
is positioned as shown in figure 6-6.
(h) Push terminal
brush guide until it snaps into posi-
Solder in place.
(i) Position red lead against
inside wall of rear end bell and secure
with drop of silicone rubber.
lectric Motor Reassembly.
front armature shaft.
deflector (16) on rear armature shaft.
(3) Press bearing (15) onto rear
To prevent injury, ensure that
Wear eye protection and
(4) Use compressed air to remove
excess carbon dust and other contamina-
tion from motor.
(5) Insert armature (13) into
motor stator (12).
(8.1) and front end bell (8). Do not
attach pump until
after motor test