Toro 22177 Operator's Manual page 12

5. Take a half sheet of newspaper and crumple it into a
ball small enough to go under the deck (about 3 in. or
76 mm in diameter) as shown in Figure 14.
Figure 14
1. 5 in. (12.7 cm)
6. Place the ball of newspaper 5 in. (12.7 cm) in front of
the lawn mower (Fig. 14).
7. Start the engine.
8. Move the blade control bail down to its lowest position
(Fig. 15).
Figure 15
9. Lift the blade control bail up to about one inch (2.5
cm) below the handle; refer to position A in Figure 16.
Note: The fan-like noise indicates that the lawn
mower blade is turning.
Figure 16
1. 1 in. (2.5 cm)
10. Release the blade control bail; refer to position B in
Figure 17. You should hear a "bang." The blade should
stop in 3 seconds.
756
11. Immediately push the lawn mower over the newspaper
ball.
12. Stop the engine and wait for all moving parts to stop.
13. Walk around the lawn mower to check for the
newspaper ball. If the ball did not go under the deck,
repeat steps 6 through 12.
14. Pull the lawn mower away from the newspaper. If the
newspaper ball unravels or is shredded, the blade has
not properly stopped, resulting in an unsafe operating
condition. Contact an Authorized Service Dealer.
To check for a problem with the BBC system before it
affects its normal operation, you can perform the Special
Test that follows.
Special Test
m-5085
1. Follow steps 1 through 7 from the Normal Test on
page 11.
2. Move the blade control bail down to its lowest position
(Position B in Fig. 17).
3. Bring the blade control bail up into the middle position
about 5 inches (12.7 cm) below the handle cross bar
(Position C in Fig. 18).
m-5085
Note: This intermediate position (C) is not the normal
operating position of the blade control bail. However, it
helps to detect a sticking BBC system early enough to
prevent an unsafe condition later.
12
m-5085
Figure 17
m-5086
Figure 18