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TM 10-4320-311-14
Table 3-1. Operator Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3. Check fuel select valve.
Set handle to proper position for fuel supply source. (Refer to para 2-6.)
Step 4. Check air cleaner restriction Indicator.
If a red band appears in window of air cleaner restriction indicator, replace air filter element.
(Refer to para 3-3.)
4. LACK OF POWER
Step 1. Check position of speed control lever handle.
Move to START position to increase engine speed (Refer to para 2-6.)
Step 2. Check for insufficient fuel supply.
Fill fuel tank, if necessary.
Step 3. Check fuel cock.
Fully open the fuel cock, if closed. (Refer to para 2-6.)
Step 4. Check fuel select valve.
Set handle to proper position for fuel supply source. (Refer to para 2-6.)
Step 5. Check air cleaner restriction indicator.
If a red band appears In window of air cleaner restriction indicator, replace air filter element
(Refer to para 3-3.)
Step 6. Check for carbon deposits on spark arrestor.
Remove carbon deposits from spark arrestor. (Refer to para 3-5.)
5. ENGINE STOPS RUNNING
Step 1. Check for insufficient fuel supply.
Fill fuel tank, if necessary. Step 2. Check air cleaner restriction indicator.
If a red band appears in window of air cleaner restriction indicator, replace air filter element.
(Refer to para 3-3.)
6. PUMP FAILS TO PRIME
Step 1 Check for low engine speed.
Move speed control handle to START position to increase engine speed. (Refer to para 2-6.)
3-4
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