Doosan D20S-5 Operation & Maintenance Manual page 174

Maintenance Section Maintenance Section
7. 7. Before installing a new filter element, apply a Before installing a new filter element, apply a
small amount of clean engine oil to the filter small amount of clean engine oil to the filter
element gasket. element gasket.
8. 8. Install the new filter element. When the gasket Install the new filter element. When the gasket
contacts the base, tighten it 3/4 of a turn more. contacts the base, tighten it 3/4 of a turn more.
Do not over-tighten. Do not over-tighten.
9. 9. Raise the lift truck, remove the blocking and Raise the lift truck, remove the blocking and
lower the lift truck. lower the lift truck.
10. 10. Fill the Fill the crankcase. Se crankcase. See "Refill
11. Start the engine and allow the oil to fill the filter 11. Start the engine and allow the oil to fill the filter
and passages. and passages.
12. 12. Check for oil leaks. Check for oil leaks.
13. Stop the engine and measure the oil level. 13. Stop the engine and measure the oil level.
Maintain the oil level to the FULL mark on the Maintain the oil level to the FULL mark on the
dip stick. dip stick.
14. Close hood and seat assembly 14. Close hood and seat assembly
e "Refill Capacities". Capacities".
mounting base. Make sure the entire old gasket mounting base. Make sure the entire old gasket
is removed. is removed.
-171- -171-
PCV Valve System - Inspect, PCV Valve System - Inspect,
Clean Clean
G420F(E) Gasoline, LP and Dual Fuel G420F(E) Gasoline, LP and Dual Fuel
Engines Engines
G424F(E) LP and Duel Fuel Engines G424F(E) LP and Duel Fuel Engines
1. 1. Loosen the hose clamps and remove the PCV Loosen the hose clamps and remove the PCV
valve. valve.
2. 2. Shake the PCV valve. If it rattles, reinstall it. If it Shake the PCV valve. If it rattles, reinstall it. If it
does not rattle, replace it. does not rattle, replace it.
3. 3. Tighten the hose clamps Tighten the hose clamps