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OM-166 941 Page 26
8-3. FUEL/WATER SEPARATOR AND SLUDGE
DRAIN PLUG
WARNING: ENGINE FUEL can cause fire or
explosion.
• Do not drain fuel tank while engine is running.
• Do not smoke while handling fuel.
• Do not allow fuel to drain onto the engine or
other components.
• Do not spill fuel; if spilled, wipe up.
• Have a fire extinguisher nearby, and know
how to use it.
A. Fuel/Water Separator
The fuel/water separator, located on the right base rail
near the engine, is provided to drain off water from the
fuel system. Before starting the engine for the first time
each day, open the fuel drain plug on the bottom of the
separator, and drain the water into a metal container.
Close the drain plug at the first signs of fuel. The fuel/
water separator should be changed every 125 hours of
operation or every four months, whichever occurs first.
B. Sludge Drain Plug
A sludge drain plug, located on the lower right front cor-
ner of the unit, is provided to drain off sediment from the
fuel tank. Once a week, drain the sludge into a metal
container. If the fuel is extremely dirty, drain the sludge
daily.
8-4. FUEL FILTER (Figure 8-2)
WARNING: ENGINE FUEL can cause fire or
explosion.
• Stop engine before working on fuel system.
• Do not spill fuel; if spilled wipe up.
• Do not service fuel filter if engine is hot or run-
ning.
• Do not service fuel filter near sparks or open
flame.
• Do not smoke while servicing fuel filter.
• Have a fire extinguisher nearby, and know
how to use it.
This welding generator is equipped with a cartridge-type
fuel filter located above the oil filter on the right side of
the unit. The fuel filter should be replaced after 1000
hours of operation, or more often depending on the qual-
ity of fuel used and how dusty and dirty the location is in
which the engine is being used. To replace the fuel filter,
refer to the Engine Manufacturer’s Manual.
Oil Fill Cap
Fuel Filter
Engine Speed
Adjustment
Screw
Ref. ST-147 321-A
Figure 8-2. Right Side And Rear View Of Engine
8-5. BATTERY REPLACEMENT PROCEDURE
WARNING: SPARKS OR FLAMES can cause
BATTERY GASES to explode; BATTERY
ACID can burn eyes and skin.
• Stop engine before disconnecting or
connecting battery cables.
• Keep sparks, flames, cigarettes, and other
ignition sources away from batteries.
• Do not allow tools to cause sparks when
working on a battery.
• Always wear a face shield and proper
protective gloves and clothing when working
on a battery.
Use the following procedure to prevent sparks when
removing or installing a battery:
1. Be sure engine is fully stopped, and Engine
Control switch is in the OFF position.
2. Locate battery in unit.
3. Open door or remove panels as necessary.
4. Disconnect negative (−) battery cable first and
positive (+) cable last.
5. Remove holddown device.
6. Remove battery.
7. Install new (or charged) battery.
8. Reinstall and secure holddown device.
9. Connect positive (+) cable first and negative (−)
cable last.
10. Securely reinstall or close doors or panels.