Pressure relief stud
Lock washer, No. 10
Fuel pressure g
Adjusting screw 9
Figure 4-110. Fuel manifold, exploded view.
correct, clean off the tip and strainer assembly, or
replace the tip and strainer assembly if necessary.
Dry cleaning solvent, P-D-680 or P-S-
4-113. Water Limit Switch And Thermostat
661, used to clean parts is potentially
dangerous to personnel and property.
a. Removal and Disassembly.
Use in a well-ventilated are as the
fumes are dangerous if inhaled. Avoid
(1) Drain the coolant system.
repeated and prolonged skin contact.
(2) Pull out the disconnect plug (31, fig. 4-
Do not use near open flame or
excessive heat. Flash point of solvent
(3) Tag the leads and remove the two screws
is 100F.-138F. (38C.-59C.).
b. Cleaning, Inspection and.. Repair. Wipe off the
(4) Unscrew the switch (1) from the heater
switch with a cloth dampened in a cleaning solvent.
using two wrenches, with one on the hex part of the
Inspect the contact points in the switch. Clean the
switch and the other on the hex part of the heater pipe.
points if they are dirty, pitted, or burned, using only soft
(5) Remove six screws (5) securing the cover
tissue or fine cloth. Open the points, with the
to the switch and lift off the cover.