Table 11-4. Organizational Troubleshooting Chart - Liquid Loading System (Continued).
a. Ball valve closed.
a. Open ball valve.
5. No fluid being pumped.
b. Pump not primed.
b. Prime pump.
c. Inlet strainer clogged.
c. Remove and clean or replace strainer
d. Fluid source empty or inlet pipe clogged. d. Check fluid source for cause.
e. Inspect and repair or replace hose or
f. Pump faulty.
f. Repair pump (report to direct support
a. Inlet strainer clogged.
a. Remove and clean or replace strainer
6. Restricted fluid flow.
b. Fluid source low or inlet pipe clogged.
b. Check fluid source for cause.
c. Inspect and repair or replace hose or
d. Pump faulty or engine not up to speed
d. Repair pump (report to direct support
(c) Inspect the spark plug and clean or
plug when installing. Check to see that terminal end of
ignition wire (43) is fully inserted in spark plug boot.
replace as necessary. Replace spark plug and gasket
c. Muffler Service.
after 100 hours of operation or if cleaning and regapping
(1) Loosen screw of muffler strap (21, fig. 11-
the plug does not return it to serviceable condition.
(d) Clean the spark plug by wire-brushing and
22). Remove muffler strap from muffler (20) and muffler
by digging out carbon around the insulator with a sharp
(2) Loosen locknut on inlet of muffler (20) and
(e) Using a 0.035-inch feeler gage, set the
(3) Using a scriber or the fabricated muffler
spark plug gap.
cleaning tool (fig. 11-5), clean out all of the perforations
of the muffler by inserting the tool into each end and
plug threads, and install spark plug. Tighten spark plug
to a torque of 250 to 300 lb-in. using a 13/16-inch deep
It is necessary to clean from both ends
because of the solid baffle in the center
using a 3/4-inch open end wrench over end terminal of
of the muffler.
spark plug. Make sure plug lead is fully installed and that
no dirt is trapped in spark