Doosan Forklift D33S-9

Warning: Ensure the engine is off and cool before starting the procedure

Container placed under the engine for collecting drained oil

Drain plug opened and engine oil drained

Oil refill cap closed and oil level gauge installed

Engine run for 5 minutes to check engine oil leak, and engine oil level with the oil level gauge

NOTICE! Servicing of the engine oil and oil filter element will largely affect the engine performance as well as the engine life

Engine oil and filter element changed after the first 50 hours

WARNING! Remove the oil refill cap. Take care that foreign material does not enter the oil tank

WARNING! The oil level should be close as possible to upper point of the oil dip stick. Do not refill more than upper point

Close the oil refill cap on the engine top

Use the genuine oil approved/recommended by the manufacturer

Having replenished the engine oil, close the oil cap

Run the engine for 5 minutes, check if the engine oil leaks

NOTE! Initial engine oil replenishing should be done after 50 Operating Hours

Engine oil replenished successfully?

Sign off on the engine oil replenishment

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

Park the lift truck level, with the forks lowered, parking brake engaged, direction control lever in NEUTRAL and the engine stopped

Remove drive axle drain plug and transmission drain plug

Allow the oil to drain into a suitable container

Check O-ring seal and replace if necessary

Remove the spring and the strainer

Wash the strainer assembly in clean, nonflammable solvent and dry it

Clean battery outer surfaces with a mixture of baking soda and water

Inspect battery outer surfaces for damage and replace as necessary

Remove battery cable and clean, repair and/or replace as necessary;

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