Walker MDD (20.9 HP) - Manual (Page 53)

Maintenance Instructions
LUBRICATION
49
Oil Drain Location
(view from left side of tractor)
4. Before removing the oil filter, clean the area
around the filter to keep dirt and debris out of
the engine.
Oil Filter Location
5. Remove the old oil filter and wipe off the filter
mounting surface on the engine.
6. Apply a thin coating of clean oil to the rubber
gasket on the replacement oil filter.
IMPORTANT: Use ONLY oil filters from the en-
gine manufacturer (Kubota 15841-32439). Af-
termarket oil filters may not seal properly and/or
may not have the correct pressure relief valve
for proper lubrication. Also, the filter length di-
mension is critical for tailwheel clearance.
7. Install the new oil filter on the engine. Turn the
filter clockwise until the rubber gasket contacts
the sealing surface, then tighten the filter an
additional 1/2 turn.
8. Reinstall the drain plug. Make sure it is tight-
ened to 10 ft-lb (13.6 N·m).
9. Fill the crankcase with new, clean oil. Use only
crankcase lubricants recommended by the en-
gine manufacturer. Refer to
Specifications in
this manual or the engine owner’s manual. Use
the recommended oil viscosity for the expected
ambient temperature. Oil with the correct vis-
cosity will aid starting in cold weather and as-
sure proper lubrication in hot weather. Fill up
to, but not above, the upper mark on the dip-
stick. Crankcase capacity is 3.1 quarts (2.9 li-
ters) plus 1/2 pint (.24 liters) for the new oil filter.
IMPORTANT: DO NOT use oil that is rated for
gasoline engines only (API SE/SF). This will
cause problems with a diesel engine.
IMPORTANT: Check the dipstick reading be-
fore adding the last 1/2 pint of oil and fill only to
the upper mark. DO NOT overfill the crank-
case (oil above upper mark) as this CAN result
in engine overheating, loss of power, and pos-
sible engine damage.
10. Start the engine and check for oil leaks around
the oil filter. Stop the engine, recheck the oil
level, and add oil if necessary. (When the en-
gine is first operated with a new oil filter, the oil
level drops slightly as the filter is filled with oil.)
Grease Fitting and Oil Point Lubrication
Lubricate the grease fittings and oil points after ev-
ery 25 hours of operation. Lubricate more often
when operating in dusty or dirty conditions. Use
SAE general purpose lithium or molybdenum base
grease for grease fittings and light machine oil (SAE
10) to lubricate oil points. Lubricate the locations
shown in the Chassis and Deck Lubrication
Points illustration.
NOTE: PTO universal joints (on the deck and trac-
tor) require routine lubrication after every 8 hours
of running time.
Drain Plug
Oil Filter