TM 9-1550-416-14&P
Inspect the components for damage. Repair or reject
b.
Connect starter power leads to GSE power panel. Place starter
as appropriate.
in rectangular receptacle.
Perform the assembly procedures for the ground
c.
(3) Check nicad battery voltage level using the
support equipment as follows:
GSE multimeter. (See fig. 2-30.) Charge the battery if voltage
(1) Place the following items in the GSE/field box
level is below 12 volts. (For charging procedures, see para-
storage drawer and compartment:
Glow plug clips
Tool set
Emergency power cable
Section III. TROUBLESHOOTING PROCEDURES
3-14.
GENERAL.
3-13.
INTRODUCTION.
This manual cannot list all malfunctions that may occur, nor
Table 3-4 lists the common
malfunctions which may be
found
all tests or inspections and corrective actions. If a malfunction
during the operation or maintenance of the FQM-117 B-1 and
is not listed or is not corrected by listed corrective actions,
FQM-117 C-1 or its components. Perform the tests, inspec-
notify your supervisor.
tions and corrective actions in the order listed.
Table 3-4. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE WILL NOT START (OR HARD TO START)
Step 1. Check fuel. Bad fuel may have moisture, din, or sand in it.
Refuel with clean, moisture free fuel.
Step 2. Check to see if carburetor is flooded.
Clear flooded carburetor by turning aerial target on its side with carburetor air intake pointed
downward.
Step 3. Check carburetor to see if fuel is present when primed. Check return lines for holes or foreign
matter.
Replace or clean return lines.
Step 4. Check needle valve adjustment. A wrong needle valve adjustment lets the engine fire, but dies
immediately.
Adjust needle valve ccw so that mixture is rich.
Step 5. Check glow plug. It should be tight, seal should not leak, and should read approximately 3 on
Replace glow plug.
Step 6. Check engine for loose or missing screws.
Tighten or replace screws.
2. ENGINE STOPS IN FLIGHT.
Step 1. Check for fuel starvation. Small holes and cracks in fuel lines leak air during flight because of
vibration.
Replace defective fuel lines.
3-28