Lubrication; Engine Oil; Engine Break-In Oil; Checking Engine Crankcase Oil Level - Walker Model MS (13 HP) Owner's Manual

Maintenance Instructions

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 pro-
cedure. 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 ser-
viced with 10W-30, Service Class SG oil from the
factory. The oil should be changed after the initial
engine break-in period of 8 hours. Thereafter,
change oil after every 50 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
engine 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 opening in the engine block
to keep any dirt or debris out of the engine.
3. Unscrew and remove the filler plug/dipstick and
wipe off with a clean rag. Insert dipstick into filler
hole but DO NOT screw it in to check the oil
level. Remove the dipstick and check the level.
The oil level should be within the safe range
(between the H and L marks on the dipstick).
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WARNING
IMPORTANT: DO NOT operate engine without
sufficient oil supply in the crankcase. DO NOT
operate with oil level below the LOW (L) mark or
above the FULL (H) mark on the dipstick.
NOT SCREWED IN
Dipstick Position
for Checking Oil Level
Dipstick Operating Range
4. If additional oil is needed, refer to Specifications
for proper crankcase lubricant. Fill to the FULL
(H) mark.
IMPORTANT: DO NOT overfill crankcase [oil
above FULL (H) level] as this CAN result in
engine overheating, loss of power, and possi-
ble engine damage.
LUBRICATION
Filler Plug
FULL (H) Mark
LOW (L) Mark
FULL (H)
Mark
LOW (L)
Mark