Doosan Doosan Forklift D20S-9 D20S-9

WARNING! Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin

NOTE! Park the lift truck level with the forks lowered, parking brake engaged, transmission in NEUTRAL and the engine stopped

Loosen the bolts of the hydraulic tank top plate assembly

Remove the return filter from tank top plate assembly

Install new return filter by hand

Remove the suction strainer from the tank

Install the new strainer by hand

Install the tank top plate assembly and fasten the bolts

Remove and discard the air breather

WARNING: At operating temperature, the hydraulic tank is hot and under pressure. Hot oil can cause burns. Remove the filter cap only when the engine is stopped, and the cap is cool enough to touch with your bare hand. Remove the filter cap slowly to relieve pressure.

Operate the lift truck for a few minutes to warm the oil

Park the lift truck on a level surface, with the forks lowered, mast tilted back, parking brake engaged, transmission in NEUTRAL and the engine stopped

Raise the hood and seat assembly

Make sure the air lift cylinder securely holds the hood open

Remove the dip stick/filter cap

Maintain the oil level to the FULL mark on the dip stick/filter cap

Sign off on the hydraulic oil level check

CAUTION! The engine oil in a new engine becomes contaminated from the initial break-in of internal parts. It is very important that the initial oil and filter change is performed as scheduled

NOTE! The oil drain plug may be in another location if an optional oil pan is used

Check that the engine is at level position

Start and warm up the engine to operating temperature

Stop the engine and wait for 5~10 minutes

Pull out the oil level gauge (dip stick) upward

Wipe the scale of the oil level gauge with a clean cloth

Insert the oil level gauge into the coil level check hole

Pull out the oil level gauge again to check the oil level

Warning: This procedure should be performed by trained personnel only.

Engine priming completed at factory

Fuel system drained and refueled

Fuel filter and other parts replaced

Water drained from oil-water separator

Approved container placed under the air bleed port

Hand pump pressed until oil comes out

Start the engine and allow it to reach operating temperatures

Perform visual inspection of exhaust system

Sign off on the engine exhaust leak inspection