Buhler 435, 485, 535 manual Lubrication & Maintenance Every 250 Hours

4-22

Section 4 - Lubrication & Maintenance

Every 250 Hours

Every 250 Hours

Operation 24

Change the Engine Oil and Filter

To change the engine oil and filter, operate the engine until the coolant temperature reaches 60° C (140° F).. Shut off the engine..

There are two oil plugs (3) located on the bottom of the oil pan.. Either plug can be removed to drain the oil.. Drain the oil completely to make sure all the oil and suspended contaminates are removed from the engine..

NOTE: All model tractors use one single oil filter mounted on the right-hand side of the engine.

Clean the area around the oil filter head (4).. Unscrew the old filter (5) and discard..

Clean the sealing surface of the filter head.. The O-ring may stick on the filter head.. Make sure it is removed..

NOTE: Fill the new filter with clean engine oil. (The lack of lubrication during the delay until the filter is charged with oil is harmful to the engine).. Apply a light film of oil to the gasket sealing surface before installing the new filter..

Install the new filter on the filter head.. Tighten the filter until the gasket contacts the filter head surface.. Tighten the filter an additional 1/2 to 3/4 of a turn..

NOTE: Over-tightening can distort the threads or damage the filter element seal. Do not use tools to tighten the filter.

Clean and check the oil drain plug threads and the sealing surface.. Install and tighten the oil drain plug..

3

F4-37

4	5
	F4-29

Torque Value: 47 N·m (35 ft-lbs)

Wrench size: 3/4"

Fill the engine with high quality 15W-40 multi- viscosity oil to the proper level as indicated by the dipstick.. The oil change capacity (oil pan and filter filled to capacity) is 45..4 L (12 Gal)..

NOTE: The engine is filled with 10W-30 oil at the factory. This weight of oil aids coldweather starting at the manufacturing facility. SAE 15W-40 oil as listed is the preferred viscosity oil for normal operation.

Operate the engine at idle speed and inspect for leaks at the filters and drain plugs..

NOTE: Engine oil pressure must be indicated on the EIC display within 10 seconds after starting. If oil pressure is not registered within 10 seconds, shut off the engine immediately to avoid engine damage. Confirm the correct oil level in the oil pan.

Shut off the engine.. Wait approximately five minutes to let the oil drain from the upper parts of the engine.. Check the oil level again..

Add oil as necessary to bring the oil level to the (FULL) mark on the dipstick..

IMPORTANT: Discard used engine oil according to local laws and regulations.

435/485/535