Buhler 535 - Manual (Page 155)

4-22
435/485/535
Section 4 - Lubrication & Maintenance
Every 250 Hours
F4-29
F4-37
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 (40° 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 /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 .
Torque Value: 47 N·m (35 ft-lbs)
Wrench size: 3/4"
Fill the engine with high quality 5W-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 (2 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.
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