Doosan Forklift D33S-9

The brake reservoir is located on the left side of the steering column

Brake fluid level maintained to the fluid level mark on the brake system reservoir

Filler cap cleaned and installed

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

NOTE! Make sure that carriage height is correct.

If correct, adjust the chain for equal tension. If not, adjust the chain for correct carriage height by adjusting anchor nuts.

NOTE! See the previous section, “Carriage Roller Extrusion” in “When Required” for proper height of carriage.

Is the carriage at the proper height?

Fully lower the carriage and tilt mast forward or lift the carriage and put blocks under the carriage to release the tension from the lift chains.

Is the carriage fully lowered and mast tilted forward?

Loosen nut and adjust nut to get proper distance from bottom of inner upright to the bottom of carriage bearing.

Is the nut loosened and adjusted properly?

Warning: This procedure requires trained personnel with PPE!

Enter the deflection of the belt under 110 N (25 lb) of force

Is the deflection within the correct adjustment range (10 mm or 3/8 inch)?

If not, proceed to adjust the tension of the air-con compressor drive belt.

Did you loosen the air-con compressor mounting bolt before adjusting?

NOTICE! Failure to loosen air-con compressor mounting bolt will cause excessive stress and break the alternator mounting ear.

Sign off on the air-con compressor belt check

WARNING! Personal injury can be caused by sudden movement of the mast and carriage. Keep hands and feet clear of any parts that can move;

Lift the carriage and the mast high enough for getting tension on lift chains

Check the chains, and make sure the tension is the same

Lift chains are required to check for equal tension about every 1,000 service hours or 6 months

Sign off on the lift chain tension check