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Rammer
3.9
Checking for Vapor Lock
■ Fresh, non-oxygenated fuel
Requirements
■ New fuel filter if applicable
Background
Loading conditions, fuel blend, and ambient temperature all add to the chances of
a vapor lock condition. If the engine runs for approximately 45 minutes and then
stops, there may be a vapor lock condition.
Checking
Perform the procedure below to check for vapor lock.
procedure
1. Check the fuel level in the fuel tank. Fill the fuel tank if necessary.
2. Check the purge bulb (a). If there is no fuel in the purge bulb, a vapor lock
condition may exist.
b
3. Check for air bubbles in the return fuel hose (b). If there are air bubbles present,
a vapor lock condition may exist.
Solution
To rectify a vapor lock condition:
► Allow the machine to cool.
► Check the fuel tank cap. The cap needs to vent. If it is screwed on too tightly,
venting will be inhibited.
► Replace the fuel with fresh, non-oxygenated fuel.
► Check the fuel filters. Replace the fuel filters if necessary.
► Check the fuel hoses for kinks and leaks. Replace the fuel hoses if necessary.
wc_tx004063gb_FM10.fm
a
39
Troubleshooting
b
wc_gr013200
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