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LT12DAB LIGHT TOWER • OPERATION MANUAL — REV. #0 (06/03/11) — PAGE 31
flushing operation. While flushing water through the
system, make sure the water inlet hose does not come
out of the radiator filler port.
7. After flushing, stop the engine, open drain plug and
drain the water, then close drain plugs.
8. After draining the water, flush the system with a flushing
agent. See instructions on flushing agent label.
9. After flushing, open drain plugs and drain out all the
water, then close drain plugs and add tap water so the
water level is near the mouth of the water filler.
10. When the water level is near the mouth of the water
filler, open drain plugs and start the engine, run at low
idling and continue to flush the system until clean water
comes out. Adjust the flow of the water flowing in and
draining out to ensure the radiator is always full during
the flushing operation.
11. When clean water comes out, stop the engine, drain
all the water, then close drain plugs.
12. Remove the corrosion resistor (if equipped) and open
valve.
13. Supply water until it flows over the water filler.
14. Drain the water inside reserve tank, clean the inside of
the reserve tank, then fill with coolant/water mixture to
between the full and low lines.
15. Stop the engine, wait for 3 minutes, add tap water until
the water level reaches near the water filler port, then
tighten the radiator cap.
CHANGING OIL
1. Make sure the oil is cool before changing.
2. Set a container directly under the drain plug of the oil
pan. Loosen the drain plug slowly.
3. Check the drained oil for excessive metal particles or
foreign material. Contact the distributor if there is metal
particles or foreign material.
4. Using a filter wrench, turn filter cartridge to the left
to remove it. If the filter cartridge is filled with a large
amount of oil, wait 10 minutes or so before removing.
Make sure there is no old gasket stuck on the filter
holder.
MAINTENANCE
5. Tighten drain plug. Clean the filter holder, fill the new
filter cartridge with clean engine oil, coat the packing
and thread of the new filter cartridge with engine oil,
then install it to the filter holder. Tighten until the gasket
surface contacts the seal surface of the filter holder,
then tighten it a further 3/4 to 1 turn.
6. Add engine oil through oil filler until the oil level is
between the H and L marks on the dipstick.
7. Run the engine at idling for a short time, then stop the
engine. Recheck the oil level and fill as necessary.
REPLACING FUEL FILTER
1. Set the container under the filter cartridge to catch
fuel.
2. Using a filter wrench, turn the filter cartridge to the left
to remove it.
3. Clean the filter holder, fill the new filter cartridge with
fuel, coat the packing surface of the filter cartridge
with engine oil, then install the cartridge to the filter
holder.
4. When installing, tighten until the packing surface
contacts the seal surface of the filter holder then
tighten a further 2/3 of a turn. If the filter cartridge is
tightened too much, the packing will be damaged and
will cause fuel leakage. Fuel leakage will occur if the
filter cartridge is not tightened enough. Always tighten
to the correct angle.
5. Operate the fuel primer lever to pump fuel back into
the engine.
6. Replace corrosion resistor cartridge (if equipped).
7. Screw in valves at the top of the corrosion resistor.
8. Using a filter wrench, turn the cartridge to the left to
remove it.
9. Lightly coat the seal surface of the new cartridge with
engine oil and install it to the filter holder.
10. Tighten until he packing surface contacts the seal
surface of the filter holder, then tighten a further 2/3
of a turn.
11. Open valves.