Hayter Mowers 405607x52A Manuel De L'utilisateur page 10

4. Follow the Maintenance section to keep the
unit in good operating condition.
WARNING: Before you make an in-
spection, adjustment, or repair to
the unit, disconnect the wire to the
spark plug. Remove the wire from the
spark plug to prevent the engine from
starting by accident.
NOTE: Torque is measured in foot pounds
(metric Nm). This measurement describes
how tight a nut or bolt must be. The torque is
measured with a torque wrench.
Inspect Blade (Figure 7)
WARNING: Before you inspect or
remove the blade, disconnect the
wire to the spark plug. If the blade
hits an object, stop the engine. Check the
unit for damage. The blade has sharp
edges. When you hold the blade, use
gloves or cloth material to protect your
hands.
If you keep the blade (1) sharp and inspect the
blade for damage, the blade will cut better and
be more safe to operate. Frequently check the
blade for excessive wear, cracks, or other dam-
age. Frequently check the nut (3) that holds the
blade (1). Keep the nut (3) tight. If the blade hits
an object, stop the engine. Disconnect the wire
to the spark plug. See if the blade is bent or
damaged. Check the blade adapter (5) for dam-
age. Before you operate the unit, replace dam-
aged parts with original equipment parts. See
the authorized service centre in your area. Every
three years, have an authorized service person
inspect the blade or replace the old blade with
an original equipment part.
How To Remove And Install The Blade
(Figure 7)
1. Remove the mower housing. See the instruc-
tions on "How To Remove The Mower Hous-
ing".
2. Use a piece of wood to keep the blade from
rotating.
3. Remove the nut (3) that holds the blade (1).
4. Check the blade (1) and the blade adapter
(5) according to the instructions for "Inspect
Blade". Replace a badly worn or damaged
blade with an original equipment blade. See
an authorized service centre in your area.
5. Clean the top and bottom of the mower hous-
ing. Remove all the grass and debris.
6. Mount the blade (1) and blade adapter (5)
on the mandrel (6).
7. Mount the blade (1) so that the hi-lift edges
(7) are up. If the blade is upside down, the
blade will not cut correctly and can cause an
accident.
8. Fasten the blade (1) with the original
washers and nut (3). Make sure the outside
rim of the Belleville washer (2) is against
the blade (1).
F-050743L
WARNING: Always keep the nut (3)
tight that holds the blade (1). A
loose nut or blade can cause an
accident.
9. Tighten the nut (3) that holds the blade (1) to
a torque of 30 foot pounds (41,5 Nm).
10. Install the mower housing. See "How To Re-
move The Mower Housing".
How To Adjust The Blade Rotation
Control
WARNING: To prevent an injury, the
blade rotation control must operate
correctly.
In normal usage, the blade rotation control will
not require an adjustment. However, if the cut-
ting performance decreases or the quality of cut
is poor, make the following changes.
1. When you mow, make sure the throttle con-
trol in in the FAST position.
2. (Figure 8) Move the blade rotation control to
the DISENGAGE position (1).
3. Stop the engine. Disconnect the wire from
the spark plug.
4. Check the blade(s). Keep a sharp edge on
the blade(s). A blade that is not sharp will
cause the tips of the grass to become brown.
5. (Figure 9) Disconnect the blade drive
spring (2) from the blade control rod (1).
Move the blade drive spring (2) to the
middle hole (4). This will increase the ten-
sion on the mower drive belt.
6. Attach the wire to the spark plug. Mow for a
short distance and again check the quality of
cut. If necessary, move the blade drive
spring (2) to the bottom hole (5)
7. Again check the quality of cut. If the quality of
cut has not improved, replace the mower
drive belt. See "How To Replace The Mower
Drive Belt". If the replacing the belt does not
correct the problem, take the unit to an auth-
orized service centre.
8. Move the blade rotation control to the DIS-
ENGAGE position. Stop the engine.
9. (Figure 10) Check the operation of the blade
brake. Rotate the pulleys with your hand.
Make sure the brake pads (1) are pressed
tightly against the pulleys
WARNING: If the brake pads (1) do
not press tightly against the
pulleys, take the unit to an author-
ized service centre.
10. (Figure 8) Move the blade rotation control to
the ENGAGE position (2).
11. (Figure 10) Check the pads for the blade
brake (7). If the pads are excessively worn
or damaged, replace the brake pad assem-
blies. Correct replacement parts and assist-
ance are available from an authorized
service centre.
12. Attach the wire to the spark plug. Mow for a
short distance and again check the operation
of the blade rotation control.
13. When you move the blade rotation control to
the DISENGAGE position, all movement will
stop within five seconds. If there is move-
ment of the belt or the blades continue to ro-
tate, engage and disengage the blade
10
rotation control five times to remove any ex-
cess rubber from a new mower drive belt. If
you need assistance, take the unit to an
authorized service centre.
14. (Figure 9) If you replace the mower drive
belt, move the blade drive spring (2) to the
top hole (3).
How To Check And Adjust The Motion
Drive Belt (Figure 18 and Figure 21)
If the motion drive belt is loose, the belt will slip
when; going up a hill, pulling a heavy load, or the
unit will not move forward.
IMPORTANT: Always operate with the engine
speed in the FAST position. If the engine
speed is in a slow or moderate position, the
engine and transmission can become too hot
and cause problems that are similar to a
loose motion drive belt.
WARNING: Before you make an in-
spection, adjustment, or repair to
the unit, disconnect the wire to the
spark plug. Remove the wire from the
spark plug to prevent the engine from
starting by accident.
1. (Figure 21) Check the routing of the motion
drive belt (6). Make sure the motion drive
belt (6) is installed correctly and is inside all
the belt guides (7).
2. (Figure 18) Disconnect the clutch link (1)
from the idler arm (2).
3. (Figure 21) Align the hole in the brake lever
(3) with the hole in the frame. Hold the brake
lever (3) in place with a 1/4 inch (6 mm) pin
or bolt (4).
4. (Figure 18) Rotate the clutch link (1) until
the mounting hole (5) in the clutch link (1)
is aligned with the mounting hole (5) in the
idler arm (2).
5. Connect the clutch link (1) to the idler arm
(2).
6. (Figure 21) Remove the 1/4 inch (6 mm)
pin or bolt (4).
7. If the belt still slips after the belt has been
adjusted, then the motion drive belt is worn
or damaged and must be replaced. See
"How To Replace The Motion Drive Belt".
How To Check And Adjust The Drive
Brake (Figure 12 and 20)
(Figure 20) Set the parking brake. Move the au-
tomatic drive disconnect (1) to the PUSH
position (3). Push the unit. If the rear wheels
rotate, adjust or replace the brake pads.
Adjust the drive brake (4) as follows:
1. (Figure 12) The location of the drive brake
(4) is on the right side of the gearbox (5).
2. (Figure 20) Make sure the parking brake is
set and the automatic drive disconnect (1)
is in the PUSH position (3).
3. (Figure 12) Turn the hex nut (6) in a clock-
wise direction until the rear wheels do not
turn when the unit is pushed forward.
4. Release the parking brake and push the unit.
If the unit does not roll, turn the hex nut (6)
in a counter-clockwise direction until the unit
rolls.
5. Set the parking brake. Push the unit. If the
rear wheels do not turn, the drive brake (4)
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