Toro 20050 20052 18-Inch Carefree Recycler Electric E24 E120 Lawn Mower Service Manual, 2000

5
BLADE STOPPING SYSTEMS
Blade Stopping Systems
Battery Mower Systems
There are two blade stopping systems in use on the
various battery and electric powered mowers — one for
the 120 vac models and the other for the battery
powered models.  Both systems are designed to stop
the blade within three seconds of the operator
releasing the bail on the handle.
The battery powered models use a permanent magnet
motor.  If you turn the armature of a permanent magnet
motor by hand, the motor becomes a generator.  We
use that electricity to stop the motor.  With the motor
running normally, the operator releases the handle.
The switch disconnects the battery from the motor then
connects the two wires from the motor together
120
Volt Blade Stopping System
(shorting them together).  By doing this, the electricity
the motor then generates is directed back into the
motor in the opposite direction.  This results in slowing
the motor.  Also, as the motor slows down, it generates
less electricity.  Soon the two forces balance each
other out and the motor stops.  This system is very
effective and does not require brake parts to achieve
the required stopping time.  See “Switch Testing” on
page 4 - 8 for the internal workings of the switch.
The 120 vac mowers use a spring loaded brake
applied to a brake drum.  When the control bail on the
handle is squeezed, this brake is retracted by a means
of a cable (Figure 51).
Figure 51
0663-014
Carefree Mower Service Manual
5 - 1
Product Specification
CategoriesLawn Mower Manual, Toro Lawn Mower Manual
Tags, , ,
Model Number20050
Model Year2000
Download File
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- 52 pages
Document TypeService Manual
LanguageEnglish, Français, Español
Serial Number200000001 - 200999999
Product NameToro Carefree Recycler Electric Mower, E120
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Product TypeWalk Behind Mower
Product SeriesWalk Power Mower - Electric 120 VAC
Swath18 inch
DischargeRecycler
Engine Motor Model #B44910-06
Engine Motor Size12 amp
Transmission TypeHand Push
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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