OPERATION
Safety Interlock System Tests
This unit is equipped with safety interlock
switches and other safety devices. These
safety systems are present for your safety:
do not attempt to bypass safety switches, and never
tamper with safety devices. Check their operation regu-
larly.
Operational SAFETY Checks
Your unit is equipped with a seat switch safety system.
Check the seat switch operation every fall and spring
with the following tests.
Test 1 — Engine should NOT crank if:
• PTO switch is ON, OR
• Brake pedal is NOT fully depressed (parking brake
OFF), OR
• The cruise control lever is NOT in NEUTRAL.
Test 2 — Engine SHOULD crank and start if:
• Operator is sitting in seat, AND.
• PTO switch is OFF, AND
• Brake pedal is fully depressed (parking brake ON),
AND
• The cruise control lever is in NEUTRAL.
Test 3 — Engine should SHUT OFF if:
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with brake pedal NOT fully
depressed (parking brake OFF).
Test 4 — Check Mower Blade Stopping Time
Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTO switch
is turned OFF (or operator rises off seat). If mower drive
belt does not stop within five seconds, see an authorized
dealer.
Test 5 — Reverse Mow Option (RMO) Check
• Engine should shut off if reverse travel is attempted if
the PTO has been switched on and RMO has not been
activated.
• RMO light should illuminate when RMO has been acti-
vated.
WARNING
If the unit does not pass a safety test, do not
operate it. See an authorized Briggs & Stratton
Dealer. Under no circumstance should you
attempt to defeat the purpose of the safety
interlock system.
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Oil Recommendations
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality de-
tergent 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.
* Below 40°F (4°C) the use of SAE 30 will result in hard starting.
** Above 80°F (27°C) the use of 10W-30 may cause increased oil consumption. Check oil
level more frequently.
Checking/Adding Oil
Before adding or checking the oil
•
Place engine level.
•
Clean the oil fill area of any debris.
1. Remove the dipstick (A, Figure 4) and wipe with a
clean cloth.
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. It should
be at the FULL mark (B) on the dipstick.
4. If low, add oil slowly into the engine oil fill (C). Do not
overfill. After adding oil, wait one minute and then
recheck the oil level.
NOTE: Do not add oil at the quick oil drain (L, Figure 3) (if
equipped).
5. Replace and tighten the dipstick.
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