Engine Oil; Engine Fuel System - Scag Power Equipment STTII-52V-26CH-EFI Operator's Manual

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C. CHANGING HYDRAULIC OIL FILTER
ELEMENT
The hydraulic oil filter should be changed after every 500
hours of operation or annually, whichever occurs first.
1. Remove the oil filter element and properly discard it.
See Figure 7-3. Fill the new filter with clean oil and
install the filter. Hand tighten only.
2. Run the engine at idle speed with the speed control
lever in neutral for five minutes.
3. Check the oil level in the hydraulic tank. It must be
3" inches from the top of the filler neck. If necessary,
add SAE 20W50 motor oil.

7.4 ENGINE OIL

ENGINE OIL
DIPSTICK
Figure 7-4. Engine Oil Fill/Dipstick Location
A. CHECKING ENGINE CRANKCASE OIL LEVEL
The engine oil level should be checked after every 8 hours
of operation or daily as instructed in the Engine Operator's
Manual furnished with this mower.
B. CHANGING ENGINE CRANKCASE OIL
After the first 20 hours of operation, change the engine
crankcase oil and replace the oil filter. Thereafter,
change the engine crankcase oil after every 100 hours of
operation or bi-weekly, whichever occurs first. Refer to the
Engine Operator's Manual furnished with this mower for
instructions. See Figure 7-5.
ENGINE OIL
FILTER
Figure 7-5. Oil Filter Location
C. CHANGING ENGINE OIL FILTER
After the first 20 hours of operation, replace the engine
oil filter. Thereafter, replace the oil filter after every 200
hours of operation or every month, whichever occurs first.
Refer to Engine Operator's Manual for instructions. See
Figure 7-5.

7.5 ENGINE FUEL SYSTEM

DANGER
To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.
A. FILLING THE FUEL TANK
Fill to the bottom of the filler neck insert (approximately
12 gallons indicating Full (F) on the fuel gauge) at the
beginning of each operating day. See Figure 7-6. Do
not overfill. Use clean, fresh unleaded gasoline with a
minimum octane rating of 87 and a maximum of 10%
Ethanol.
DO NOT use E85 Fuel. Using E85 Fuel will cause severe
damage to the engine.
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Section 7