TM 5-3655-210-12
Section III. TROUBLESHOOTING
Table 3-2. Troubleshooting
3-6.
General
a.
This
section
contains
troubleshooting
Malfunction
information for locating and correcting most of the operating
Test or Inspection
troubles which may develope in the conversion and storage
Corrective Action
unit. Each malfunction for an individual component, unit, or
system is followed by a list of tests or inspections which will
1.
GASOLINE ENGINE FAILS TO START
help to determine probably causes and corrective action to be
Step 1. Check for an empty fuel tank.
taken. Perform the tests/inspections and corrective actions in
Fill the gasoline tank.
the order listed.
Step 2. Check for loose or broken wiring.
Tighten connections or replace defective
b.
This manual cannot list all malfunctions that
wiring.
may occur, nor all tests or inspections, and corrective action.
Step 3. Check for dirty spark plugs.
If a malfunction is not listed or is not corrected by tested
Clean or replace plugs.
corrective actions, notify your supervisor.
3-7.
Operator Maintenance Troubleshooting
2.
ENGINE MISFIRING
Refer to Table 3-2 for troubleshooting pertaining to
Check for dirty spark plugs.
Clean the plugs.
operator's maintenance.
3.
ENGINE KNOCKS
Check for lack of oil
Refill.
4.
POWER LOSS IN ENGINE
Check for a dirty air cleaner.
Clean and refill air cleaner (para 3-10).
Section IV. MAINTENANCE PROCEDURES
3-8.
General
(2) Put oil cup, with gasket (5, fig. 3-3) back
on bracket (7) and add oil, of the same grade used in the
This section contains maintenance procedures that
crankcase, to the OIL LEVEL line.
are the responsibility of the operator as allocated by the
(3) Replace gasket (3), cap and filter
maintenance allocation chart and which are not covered
assembly and wingnut.
elsewhere in this manual.
(4) Check that check ball (serial nos. L-1475-
3-9.
Engine Assembly
T through L-1478-T) or reed (serial nos. L-1666-T through
L1668-T) in breather (11) is free in breather body. Wash
Refer to LO 5-3655-210-12 and service engine
breather in solvent and reinstall.
assembly.
3-11.
Fuel Filter Service (Ser. Nos. L-1475-T Through L-
3-10
Air Cleaner
1478-T)
a.
Removal and Disassembly.
Refer to Figure 3-3 and service fuel filter as follows:
(1) Remove wingnut (2, fig. 3-2) and lift off oil
a.
Turn shut-off valve (1) fully in to shut off fuel
cup assembly (4) from bracket (7). Do not tilt, as oil will spill
flow.
from oil cup.
b.
Loosen thumbnut (17) enough to free sediment
(2) Take cap and filter assembly (1) and
bowl (18), and while holding bowl from dropping
gasket (3) from oil cup. Leave gasket (5) on bracket (7), and
dispose of old oil from oil cup. Remove breather (11).
b.
Inspection and Service.
(1) Wash filter assembly and oil cup in
solvent.
3-5
