Functional Tests - Briggs & Stratton FW25 series Setup Instructions

Walk behind mower
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1. Remove the 1/4-28 bolt (B, Figure 18) screwed into the front
caster and install a 1/4-28 grease fitting.
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2. Grease the front caster.
3. Remove the 1/4-28 grease fitting and re-install the 1/4-28
bolt.
4. Repeat process for the other side of the machine.
Checking / Adding Fuel
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severve burns or death.
Gasoline is highly flammable and must be handled with care.
Never fill the tank when the engine is still hot from recent
operation. Do NOT allow open flame, smoking or matches in
the area. Avoid over-filling and wipe up any spills.
To add fuel:
1. Stop the engine and allow it to cool for at least 3 minutes.
2. Remove the fuel cap.
3. Fill the tank to the bottom of the filler neck. This will allow
for fuel expansion.
NOTE: Do not overfill. Refer to your engine manual for
specific fuel recommendations.
4. Install and hand tighten the fuel cap.
Starting the Engine - Manual Start Models
1. Engage the parking brake and make sure the PTO switch
is disengaged and the forward speed control lever is in the
NEUTRAL position.
2. Set the engine throttle control to FULL throttle position.
Then fully close the choke by pulling the knob OUT fully.
NOTE: A warm engine may not require choking.
3. Insert the key into the ignition switch and turn it to the RUN
position.
4. Grasp the recoil starter handle and pull slowly until
resistance is felt and then pull rapidly. You may have to pull
several times before the engine starts. If the engine fails to
start within a reasonable number of attempts, discontinue
and check engine operator's manual for further instructions.
5. After the engine starts, gradually open the choke (push
knob down fully). Reduce to half throttle speed and allow
to warm up. Warm up the engine by running it for at least
a minute before engaging the PTO switch or driving the
mower.
6. After warming the engine, ALWAYS operate the unit at
FULL THROTTLE when mowing.
In the event of an emergency the engine can be stopped
by simply turning the ignition switch to STOP.
Starting the Engine - Electric Start Models
1. Engage the parking brake and make sure the PTO switch
is disengaged and the forward speed control lever is in the
NEUTRAL position.
2. Set the engine throttle control to FULL throttle position.
Then fully close the choke by pulling the knob OUT fully.
NOTE: A warm engine may not require choking.
3. Insert the key into the ignition switch and turn it to the
START position.
4. After the engine starts, gradually open the choke (push
knob down fully). Reduce to half throttle speed and allow
to warm up. Warm up the engine by running it for at least
a minute before engaging the PTO switch or driving the
mower.
5. After warming the engine, ALWAYS operate the unit at
FULL THROTTLE when mowing.
In the event of an emergency the engine can be stopped
by simply turning the ignition switch to STOP.
Perform the Safety Checks
WARNING
Disengage the PTO, stop the engine, set the parking brake,
and wait for moving parts to stop before leaving the operator's
position for any reason.
If the unit does not pass a test, do not operate the unit. Under
no circumstance should you attempt to defeat the purpose of
the safety system.

Functional Tests

1. Check the unit for loose bolts, screws, nuts, etc.
2. Start the engine and check all the controls for proper
operation: ground speed control levers, parking brake,
throttle cable, electric PTO clutch, etc.
3. Stop the engine and check for fluid leaks: oil, fuel, and
hydraulic oil.
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