Lubrication; Engine Oil; Engine Break-In Oil; Checking Engine Crankcase Oil Level - Walker D21d Operator's Manual

Maintenance Instructions

Lubrication

● Use only Kubota oil filters. Aftermarket filters
may not seal properly and/or have the incor-
rect pressure relief valve for proper lubrication.
LUBRICATION
DO NOT attempt to lubricate the machine
with the engine running. Disengage the
PTO clutch, shut off the machine, and re-
move the ignition key.
Proper lubrication is an important maintenance
procedure. It reduces wear and makes the
machine quieter and easier to operate.

Engine Oil

Engine Break-In Oil

No special break-in oil is required. The engine is
serviced with 10W-30, Service Class SJ oil from
the factory. Change the oil after the initial engine
break-in period of 35 hours. Thereafter, change
oil after every 100 hours of operation.

Checking Engine Crankcase Oil Level

Check the engine crankcase oil level before use
and after each 5 hours of continuous operation.
IMPORTANT: The importance of checking and
maintaining the proper crankcase oil level cannot
be overemphasized. Check the oil level BEFORE
EACH USE.
1. Park the mower on a level surface with the
en gine stopped. Also, make sure the engine
is cool and oil has had time to drain into the
sump [allow at least five (5) minutes after
stopping the engine].
IMPORTANT: NEVER check or add oil with
the engine running.
2. Before removing the dipstick, clean the area
around the dipstick to keep any dirt or debris
out of the engine.
3. Remove the dipstick, wipe off with a clean rag,
then reinsert the dipstick into the tube and
press all the way down.
60
WARNING
4. Remove the dipstick again and check the oil
lev el on the dipstick. The oil level should be
within the "Operating Range" on the dipstick
(between the lower mark and the upper mark).
IMPORTANT: DO NOT operate engine with-
out a sufficient oil supply in the crankcase.
DO NOT operate with the oil level below the
lower mark or above the upper mark on the
dipstick.
5. If additional oil is needed, refer to Specifica-
tions on page 3 for proper crankcase lubri-
cant. Fill up to, but not above, the upper
mark on the dipstick.
IMPORTANT: DO NOT overfill the crankcase
(oil above upper mark) as this CAN result in
engine overheating, loss of power, and pos-
sible en gine damage.
Dipstick Operating Range

Changing Engine Crankcase Oil/Oil Filter

Change the engine crankcase oil after every 100
hours of operation and replace the oil filter every
other oil change (every 200 hours of operation).
Park the mower on a level surface with the
1.
en gine stopped. The engine oil should be
warm before draining. If not warm from opera-
tion, start the engine and run a few minutes to
warm the oil.
D21d
Upper Mark
Lower Mark