Multiquip lt12d50sa User Manual

Adjust the fl ow of the water fl owing in and draining 

6. 

out to ensure that the radiator is always full during the 
fl ushing operation. While fl ushing water through the 
system, make sure the water inlet hose does not come 
out of the radiator fi ller port.

After fl ushing, stop the engine, open drain plug and 

7. 

drain the water, then close drain plugs.

After draining the water, fl ush the system with a fl ushing 

8. 

agent. See instructions on fl ushing agent label.

After fl ushing, open drain plugs and drain out all the 

9. 

water, then close drain plugs and add tap water so the 
water level is near the mouth of the water fi ller.

When the water level is near the mouth of the water 

10. 

fi ller, open drain plugs and start the engine, run at low 
idling and continue to fl ush the system until clean water 
comes out. Adjust the fl ow of the water fl owing in and 
draining out to ensure the radiator is always full during 
the fl ushing operation.

When clean water comes out, stop the engine, drain 

11. 

all the water, then close drain plugs.

Remove the corrosion resistor (if equipped) and open 

12. 

valve.

Supply water until it fl ows over the water fi ller.

13. 

Drain the water inside reserve tank, clean the inside of 

14. 

the reserve tank, then fi ll with coolant/water mixture to 
between the full and low lines.

Stop the engine, wait for 3 minutes, add tap water until 

15. 

the water level reaches near the water fi ller port, then 
tighten the radiator cap.

Make sure the oil is cool before changing.

1. 

Set a container directly under the drain plug of the oil 

2. 

pan. Loosen the drain plug slowly.

Check the drained oil for excessive metal particles or 

3. 

foreign material. Contact the distributor if there is metal 
particles or foreign material.

Using a fi lter wrench, turn fi lter cartridge to the left 

4. 

to remove it. If the fi lter cartridge is fi lled with a large 
amount of oil, wait 10 minutes or so before removing. 
Make sure there is no old gasket stuck on the fi lter 
holder.

Tighten drain plug. Clean the fi lter holder, fi ll the new 

5. 

fi lter cartridge with clean engine oil, coat the packing 
and thread of the new fi lter cartridge with engine oil, 
then install it to the fi lter holder. Tighten until the gasket 
surface contacts the seal surface of the fi lter holder, 
then tighten it a further 3/4 to 1 turn.

Add engine oil through oil fi ller until the oil level is 

6. 

between the H and L marks on the dipstick.

Run the engine at idling for a short time, then stop the 

7. 

engine. Recheck the oil level and fi ll as necessary.

Set the container under the fi lter cartridge to catch 

1. 

fuel.

Using a fi lter wrench, turn the fi lter cartridge to the left 

2. 

to remove it.

Clean the fi lter holder, fi ll the new fi lter cartridge with 

3. 

fuel, coat the packing surface of the fi lter cartridge 
with engine oil, then install the cartridge to the fi lter 
holder.

When installing, tighten until the packing surface 

4. 

contacts the seal surface of the fi lter holder then 
tighten a further 2/3 of a turn. If the fi lter cartridge is 
tightened too much, the packing will be damaged and 
will cause fuel leakage. Fuel leakage will occur if the 
fi lter cartridge is not tightened enough. Always tighten 
to the correct angle.

Operate the fuel primer lever to pump fuel back into 

5. 

the engine.

Replace corrosion resistor cartridge (if equipped).

6. 

Screw in valves at the top of the corrosion resistor.

7. 

Using a fi lter wrench, turn the cartridge to the left to 

8. 

remove it.

Lightly coat the seal surface of the new cartridge with 

9. 

engine oil and install it to the fi lter holder.

Tighten until he packing surface contacts the seal 

10. 

surface of the fi lter holder, then tighten a further 2/3 
of a turn.

Open valves.

11.