LT-12 SERIES LIGHT TOWER — OPERATION MANUAL — REV. #1 (08/15/08) — PAGE 35
Allow engine to
cool
when flushing out
radiator. Flushing the radiator while
hot!
will damage radiator. In addition the
possibility of
hot!
coolant exists which can
cause severe burns.
Flushing Out Radiator and Changing Coolant
1. Stop the engine and allow to cool. Tighten valve of the
corrosion resistor (if equipped).
2. Turn water filer cap slowly and remove it.
3. Prepare a container to catch the coolant, then open drain
plug of the radiator or heat exchanger and drain plug of the
engine, and drain the coolant.
4. After draining the coolant, close drain plugs and fill with tap
water.
5. When the water level is near the mouth of the water filler,
open drain plugs and start the engine, and run at low idling.
Keep the engine running at low idling and flush the radiator
for about 10 minutes.
6. Adjust the flow of the water flowing in and draining out to
ensure that the radiator is always full during the flushing
operation. While flushing water through the system, watch
carefully 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 filer 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.
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.
LT-12 SERIES LIGHT TOWER — MAINTENANCE
WARNING - Radiator Burn Hazard
