Snapper NX100 Operator's Manual page 10

I Front Height Adjustment Latch (2)
Operation
Before Starting
1. Check the guards, deflectors, grass bag, and covers to
make sure all are in place and securely tightened.
2. Check the blade control (A, Figure 3), drive control (B),
and ground speed control (C) to insure they work freely.
3. Check the cutting height. Adjust to the desired height.
See Cutting Height Adjustment .
4. Check the engine oil:
• Make sure the mower is on a level surface.
• Clean the oil fill area of any debris.
• Remove the dipstick (A, Figure 4) and wipe with a
clean cloth.
• Insert and tighten the dipstick.
• Remove the dipstick and check the oil level. It should
be at the top of the full indicator (B) on the dipstick.
• If low, add oil slowly into the engine oil fill. See Oil
Recommendations . Do not overfill. After adding oil,
wait one minute and recheck the oil level.
• Replace and tighten the dipstick.
5. Add fuel to the tank:
• Make sure the mower is outside, where fumes can
safely dissipate.
• Remove the fuel fill cap (C, Figure 4).
• Fill the tank with fuel. See Fuel Recommendations
. To allow for expansion of the fuel, do not fill above
the bottom of the filler neck (D).
• Reinstall the fuel fill cap.
6. Clean the exterior surfaces of the cutting deck and engine
of any accumulation of spilled fuel, dirt, grass, oil, etc.
Keep the engine air intake screen and cooling fins clear
at all times.
7. Charge the battery. See Charging the Battery .
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality
detergent oils are acceptable if classified for service SF, SG,
SH, SJ or higher. Do not use special additives.
Outdoor temperatures determine the proper oil viscosity for
the engine. Use the chart to select the best viscosity for the
outdoor temperature range expected.
10
A. SAE 30 - Below 40°F (4°C) the use of SAE 30 will result in hard
starting.
B. 10W-30 - Above 80°F (27°C) the use of 10W-30 may cause
increased oil consumption. Check oil level more frequently.
C. Synthetic 5W-30
D. 5W-30
Fuel Recommendations
Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane / 87 AKI (91 RON). For high
altitude use, see below.
• Gasoline with up to 10% ethanol (gasohol) is acceptable.
NOTICE Do not use unapproved gasolines, such as E15
and E85. Do not mix oil in gasoline or modify the engine to
run on alternate fuels. Use of unapproved fuels will cause
damage to engine components, which will not be covered
under warranty.
To protect the fuel system from gum formation, mix a fuel
stabilizer into the fuel. See Storage. All fuel is not the
same. If starting or performance problems occur, change
fuel providers or change brands. This engine is certified to
operate on gasoline. The emissions control system for this
engine is EM (Engine Modifications).
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85
octane/85 AKI (89 RON) gasoline is acceptable.
For carbureted engines, high altitude adjustment is
required to maintain performance. Operation without this
adjustment will cause decreased performance, increased
fuel consumption, and increased emissions. Contact
a Briggs & Stratton Authorized Service Dealer for high
altitude adjustment information. Operation of the engine at
altitudes below 2,500 feet (762 meters) with the high altitude
adjustment is not recommended.
For Electronic Fuel Injection (EFI) engines, no high altitude
adjustment is necessary.
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