Toro 08159SL Groundsmaster 5900 5910 Service Manual

Adjustments
Traction Pedal Calibration
IMPORTANT: A  properly  installed  and  calibrated
traction pedal potentiometer is critical to accurate
traction system  response and  for reliable  sensor
life. Use  care when  removing, installing and  cali-
brating the traction pedal potentiometer.
TRACTION PEDAL
CALIBRATED
1
R
NR
NF
F
6
1.
decks, stop engine and apply parking brake.
Park  machine  on  a  level  surface,  lower  cutting
2
NR
.18 V
NF
2.33 V
2
2.25 V
2.
into traction pedal potentiometer.
Make sure that wire  harness connector is plugged
2.23
V
3.
Turn ignition switch to  ON but do not start  engine.
Use the Info Center Display Diagnostic menu (see Info
Center Display in the  Service and Repairs section) to
obtain the Traction Pedal Calibrated screen on the dis-
play (Fig. 51).
3
5
4
Figure 51
1.
2.
3.
Bar graph
4.
5.
6.
Forward switch icon
Neutral voltage
Indicator bar
4.
On the  bar graph  in the screen,  the indicator  bar
Reverse switch icon
Midpoint voltage
should be between the NR and the NF. Also, the two (2)
switch icons  on the  screen should  both be  open. To
change the indicator bar location:
2
4
A.  Remove traction pedal  cover and spring  cover
from front platform (see Traction Pedal Disassembly
in the Service  and Repairs section of  Chapter 6 --
Chassis).
3
5
B.  Loosen hex nut that secures  neutral spring ad-
justment (Fig. 52).
1
C. Slowly rotate the spring shaft while watching the
switch icons (Fig. 52). When one of the switch icons
close,stoprotatingandmarktheshaftposition.Then
slowly rotate the shaft in the opposite direction until
the second switch  icon closes and  mark the shaft
position.
Figure 52
D. Rotatethespring  shafttothemid--pointofthetwo
shaft positions. Tighten the hex nut to secure the ad-
justment. At this setting, the indicator bar should be
betweentheNRandtheNF.Also,theneutralvoltage
valueshouldbewithin0.02Vofthemidpointvoltage.
1.
2.
3.
Traction pedal
Pedal potentiometer
Compression spring
4.
5.
Spring shaft
Hex nut
NOTE:  When adjusting traction pedal, voltage val-
ues should be similar to values shown in Figure 51.
If spring shaft  is rotated too  quickly during adjust-
ment, voltage values could be considerably different
than the values shown.
5.
6.
platform (see Traction Pedal  Assembly in the Service
and Repairs section of Chapter 6 -- Chassis).
Test traction system operation.
Install traction pedal cover and spring cover to front
Electrical System
Page 5 -- 30
Groundsmaster 5900/5910
Product Specification
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- 374 pages
Document TypeService Manual
LanguageEnglish
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)
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