Adjusting Cutting Height; Check Control Bar Operation - Toro Recycler SR-21OSB Manuel De L'utilisateur

For example, if you are approaching an object such as
a tree or bush from which you want to pull back the
mower, lower the control bar just enough to
disengage the traction drive when the mower is about
six inches away from the object. The momentum of
the mower should carry it forward at least one inch
which will disengage the clutches. Then you should
be able to easily pull the mower rearward.
The self-propelled cable should be properly adjusted
so that you can lower the control bar comfortably to
stop the traction drive without stopping the engine.
See Self-propelled Cable section in the Maintenance
chapter for cable adjustment information. If you need
help, see your Authorized Toro Service Dealer.

Adjusting Cutting Height

Height of cut can be adjusted to five settings
(Fig. 10). For normal cutting, set all four wheels in
the same position.
1. Stop engine and wait for all moving parts to
stop. Pull wire off spark plug (Fig. 8).
POTENTIAL HAZARD
Adjusting height-of-cut levers could bring
hands into contact with moving blade.
WHAT CAN HAPPEN
Contact with rotating blade can cause
serious injury.
HOW TO AVOID THE HAZARD
Stop engine and wait for all movement to
stop before adjusting cutting height.
Do not put fingers under housing when
adjusting height-of-cut.
2. For easier adjustment, lift housing up so wheel is
off ground. Do not place hands under deck
when lifting housing. Squeeze adjusting lever
toward wheel and move it to the desired setting
(Fig. 10). Ensure pin on adjusting lever engages
hole in bracket.
EN–10
Note: Front wheels can be adjusted to 1/2
inch. Move adjusting lever past "A"
and release pin into slot in housing. It
is not recommended that the 1/2 inch
height-of-cut setting be used on a
regular basis.

Check Control Bar Operation

Check the control bar before each use to ensure the
Blade Brake Clutch (BBC) system is operating
properly.
A: Normal Control Bar Operation Test
1. With engine off, wheel mower onto a paved
surface in a non-windy area.
2. Put all four wheels in "E" height–of–cut position
(Fig. 10).
3. Put ground speed selector in "N" (neutral)
position.
4. Take a half sheet of newspaper and crumple it
into a ball small enough to go under deck
(approx. three inches in diameter) (Fig. 11).
5. Place ball of newspaper five inches in front of
mower (Fig. 11).
6. Start the engine.
7. Push control bar down to lowest position
(Fig. 12).
8. Lift control bar to the normal "blade engaged"
position (about one inch below the handle)
(Position A, Fig. 13). The "fan" noise indicates
that the mower blade is turning.
9. Release the control bar (Position B, Fig. 13). A
"bang" should be heard. The blade should stop
running in three seconds.
10. Immediately push the mower over the newspaper
ball.
11. Turn off the engine.