Adjusting The Cutting Height - Exmark METRO 21 Operator's Manual

Figure 12
1. Crumpled newspaper
6. Place the ball of newspaper 5 inches (12.7 cm) in
front of the lawn mower.
7. Start the engine.
8. Squeeze the blade control bail against the handle.
9. Move the blade control lever to the full forward
Latch position. Blades should engage.
10. Release the blade control bail. You should hear a
"bang." The blade should stop in three seconds.
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 7 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.
2. 5 inches (12.7 cm)
DANGER
If the blade brake clutch system is
inoperative, the blade will continue to rotate
when you release the blade control bail.
Contact with the blade could occur, causing
serious injury.
• Check the BBC operation before each
use.
• Never use the BBC-equipped lawn mower
with an inoperative safety system.
• Take your lawn mower to an Authorized
Service Dealer for repair if the safety
system fails to operate properly.
Test Using the Grass Bag
1. Install the empty grass bag on the discharge
tunnel.
2. Start the engine.
3. Squeeze the blade control bail against the handle.
4. Move the blade control lever to the full forward
Latch position. The bag should begin to inflate,
indicating that the blade is engaged and rotating.
5. Release the blade control bail. If the bag does not
immediately deflate, it indicates that the blade is
still rotating. The blade brake clutch mechanism
may deteriorating, and, if ignored could result in
an unsafe operating condition. Have the lawn
mower inspected and serviced by an Authorized
Service Dealer.

Adjusting the Cutting Height

Each wheel is adjusted individually with a wheel
height adjustment lever. The cutting heights are listed
in the following table.
Cutting Heights
3/4 inch (19 mm)
1 1/4 inches (32 mm)
1 3/4 inches (44 mm)
19
Operation
2 1/4 inches (57 mm)
2 3/4 inches (70 mm)
3 1/4 inches (83 mm)