Komatsu Forklift Truck FG20T-14

CAUTION: If water gets into the electrical system (controller, sensor, connectors, etc.) it will cause malfunctions or operational failure. Do not wash the electrical system with water or high-pressure steam.

Turn the starting switch key to the OFF position, then remove the key.

Wash each part (1 to 4 parts in the figure at right), following the instructions in the table on the following page.

Dry off all wet areas with an air blower.

After checking that the washed parts have dried out, insert the starting switch key and turn it to the ON position, make sure that there is no abnormality, and then start operation.

Sign off on the forklift trucks cleaning

Check steering link for bending, damage and wear

Check steering knuckle for play, deformation and damage

Check for marked variation in minimum turning radius

Change oil in differential case (clutch-type lift trucks, include transmission case)

WARNING: Watch out for HOT OIL. Immediately after operations, the oil will be very hot. Wait for the oil temperature to go down before starting this maintenance operation.

Remove the oil filler plug, then remove the drain plug and drain the oil.

After draining the oil, reinstall and tighten the drain plug and add the specified amount of Komatsu Forklift oil through the oil filler.

After filling with new oil, check the oil level.

Change oil in TORQFLOW transmission case

Check operation of brake master cylinder

Check for oil leakage in brake master cylinder

Check for damage and wear in brake master cylinder

Check operation of wheel cylinders

Check for oil leakage in wheel cylinders

Check for damage and wear in wheel cylinders

Check for damage and wear in brake drum

Change oil in hydraulic tank, replace line filter, clean strainer, clean inside of tank

Change oil in engine oil pan and replace engine oil filter cartridge (gasoline and diesel engines)

Check, adjust engine intake and exhaust valve clearance

Tighten (retorque) engine cylinder head bolts

Check air cleaner and replace element/filter if dirty

Inspect and clean fuel filter sock ( not replaceable) (gasoline engine)

Change oil in TORQFLOW transmission case and clean TORQFLOW transmission strainer

Change oil in differential case (includes oil in transmission case on clutch-type lift trucks)

Check spark plugs for burning of electrode, burning of insulator (gasoline & LP engines)

Change oil in engine oil pan and replace engine oil filter cartridge (gasoline engine)

Remove the drain plug, drain the oil, then reinstall and tighten the drain plug

Add the specified amount of genuine Komatsu Forklift engine oil

Check the oil level with the dipstick

Using a filter wrench, remove the oil filter cartridge

Clean the filter holder on the engine

Coat the threads on the holder and the seal on the new filter with clean engine oil