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Engine Maintenance Components
Kubota D722 Diesel Engine
Item
Make and Part Number
Oil Filter
Kubota 70000-15241
Air Filter Element
Donaldson P822686
Fuel Filter Element
Kubota 15231-43560
Battery
Kubota group 58, 550 CCA
Belt Kubota
15881-97011
Glow Plugs
Kubota 16851-65512
Inline Fuel Filter
Kubota 12581-43012
Frequency Maintenance
Required
Daily or before
starting engine
Fill fuel tank.
Check oil level.
Check coolant level.
Check air cleaner element and housing for
dirty, loose or damaged parts.
Check air intake hose for cracks or loose
connections.
Check air intake/exhaust areas & radiator
for dirt. clean as necessary.
Check alternator belt tension and wear.
Service Intervals
Observe the following for service and maintenance. The
lubricating oil change intervals listed in the table below
are for Classes CF,CE and CD lubricating oils of API
classification with a low sulfur fuel in use. If the CF-4 or
CG-4 lubricating oil is used with a high-sulfur fuel,
change the lubricating oil at shorter intervals than
recommended in the table below depending on the
operating condition.
Intervals Items
Every 50 h
Check of fuel lines and clamp bands.
Every 75 h
Change of engine oil
Every 100 h
Inspect/Clean air cleaner element and
Vacuator™ valve.
*1
Cleaning of fuel filter.
Check the battery electrolyte level.
Check the fan belt tightness.
Every 150 h
Check the radiator and hose clamps.
Replacement of oil filter cartridge.
Check the intake air lines.
Every 200 h
Replacement of air filter element.
*1
*2
Every 400 h
Replacement of fuel filter element.
Every 500 h
Removal of sediment in fuel tank.
Cleaning of water jacket (radiator
interior).
Replacement of fan belt.
Every 1 or 2
months
Recharging of Battery.
Every 800 h
Check of valve clearance.
*3
Every 1500 h Check the fuel injection nozzle injection
pressure.
*3
Every 3000 h Check of injection pump.
*3
Check of fuel injector timer.
*3
Every 2 years Replacement of battery
Replacement of radiator hoses and
clamp band.
Replacement of fuel pipes and clamps.
Change the radiator coolant.(L.L.C.)
*4
Replacement of intake air line.
Important
These jobs should be done after the first 50 hours of
operation.
*1 Air cleaner should be inspected/cleaned more often in
dusty conditions than the normal conditions.
*2 Follow Service Instructions and Installation Tips for air
cleaner in Section D.
*3 Consult your local KUBOTA Dealer for this service.
*4 Replace only if necessary.
Please see Engine Owners Manual for Warranty
Statement in detail.
Engine Oil Change
Drain the engine oil while the engine is warm to assure
rapid and complete draining. It is recommended that
each time the oil is changed the oil filter be changed as
well.
Be sure the unit is off. Disconnect the negative
battery cable to ensure safety.
Locate oil drain hose and valve in bottom of base
and pull through the hole in the battery access panel
on the welder.
Remove the cap from the drain valve. Push valve in
and twist counter clockwise. Pull to open and drain
the oil into a suitable container for disposal.
Close the drain valve by pushing in and twisting
clockwise. Replace the cap.
Re-fill the crankcase to the upper limit mark on the
dipstick with the recommended oil (see engine
operation manual OR engine service items decal
OR below). Replace and tighten the oil filler cap
securely.
Push oil drain hose and valve back into unit,
reconnect negative battery cable, and close doors
and engine top cover before restarting unit. Wash
your hands with soap and water after handling used
motor oil. Please dispose of used motor oil in a
manner that is compatible with the environment.
We suggest you take it in a sealed container to your
local service station or recycling center for
reclamation. DO NOT throw it in the trash; pour it
on the ground or down a drain.
Engine Oil Refill Capacities
Without oil filter replacement: 3.2 liter
With oil filter replacement: 3.2 liter
Use motor oil designed for diesel engines that meets
requirements for API service classification
CC/CD/CE/CF/CF-4/CG-4 or CH-4.
ACEA E1/E2/E3. Always check the API service label on
the oil container to be sure it includes the letters
indicated. (
Note
: An S-grade oil must not be used in a
diesel engine or damage may result. It IS permissible to
use an oil that meets S and C grade service
classifications.)
SAE 10W30 is recommended for general, all
temperature use, -15C to 40C (5F to 104F). See engine
owner's manual for more specific information on oil
viscosity recommendations.
Oil Filter Change
Drain the oil
Remove the oil filter with an oil filter wrench and
drain the oil into a suitable container. Discard the
used filter.
Note
: Care should be taken during filter
removal to not disrupt or damage in any way the
fuel lines.
Clean the filter mounting base and coat the gasket
of the new filter with clean engine oil.
Screw the new filter on by hand until the gasket
contacts the mounting base. Using an oil filter
wrench, tighten the filter an additional 1/2 to 7/8 of a
turn.
