Troy-Bilt 753B, F753B Lawn Mower User Manual


 
15
Section 4: Operation
BLADE BRAKE CONTROL TEST
When the Operator Presence Control
is released during operation of the
mower, the engine does not stop, but
the blades should stop within three (3)
seconds. The following test provides a
visual test of whether the Blade Brake
Control System is functioning. Perform
this test before each use of the mower.
1. Park mower on a portion of lawn
which has not been recently mowed.
2. Set the cutting height so the mower
cuts 1/3 of the grass height.
3. Start the engine.
4. Press the Operator Presence Control
down against the handlebar grip and
push the Blade Drive Control fully for-
ward until it stays in the engaged posi-
tion.
5. Put the Gear Select Lever in the No. 1
setting.
6. Engage the wheels with the Wheel
Drive Control and drive the mower for
several feet. Then release the Operator
Presence Control.
A. Look at the lawn just mowed. The
lawn should be cut up to the point
where the Operator Presence Control
was released.
B. Press the Operator Presence Control
against the handlebar grip but DO
NOT re-engage the Blade Drive
Control. Drive the mower forward
for several more feet. Release the
Operator Presence Control and look
at the lawn. The grass should NOT
have been cut. This indicates that
the Operator Presence Control has
disengaged the blade drive and
stopped the blades.
7. If the mower cuts the grass in Step
6-B, the Operator Presence Control is
NOT disengaging the blade drive.
Immediately stop the engine, discon-
nect the spark plug wire, and move the
wire away from the spark plug.
8. Do not use the mower until the Blade
Brake Control System has been in-
spected, adjusted or repaired by an au-
thorized dealer.
To avoid personal injury or property
damage, make sure that the mower is
on grass, and that the test area is clear
of foreign objects and bystanders be-
fore you begin the Blade Brake Control
Test.
If the Operator Presence Control or the
Blade Drive Control are not adjusted
correctly, the blades may continue to
rotate after release of the Operator
Presence Control. If the blades do not
stop within three (3) seconds of release
of the Operator Presence Control, move
the Engine Throttle Control to the STOP
position, disconnect the spark plug
wire, and move the wire away from the
spark plug. Do not operate the mower
until the Blade Brake Control System
has been repaired.
Failure to do this could result in per-
sonal injury or property damage.
WARNING