Toro Groundsmaster 5900 Series Service Manual page 452

Traction Pedal Disassembly
Traction Pedal Assembly
Chassis: Service and Repairs
A properly installed and calibrated traction pedal position sensor is
critical to accurate traction system response and for reliable sensor
life. Use care when removing, installing and calibrating the traction
pedal position sensor.
(Figure 314)
1. Park machine on a level surface, lower cutting decks, stop engine and
remove key from the key switch.
2. Remove screws securing steering cover (item 1) and move steering cover up
steering column to access traction pedal assembly.
3. Disconnect machine wire harness connector from throttle position sensor
(item 29).
4. If the traction pedal is to be removed from the traction pedal shaft (item 5),
use a marker or paint pen on pedal and shaft to identify location of pedal for
assembly purposes.
5. Disassemble traction pedal as needed. When removing roll pin (item 32),
make sure to support shaft to prevent component damage.
(Figure 314)
1. Assemble traction pedal as necessary noting the following items:
A. Apply grease to inside and outside of flange bushing (item 17). Do not
allow grease to get on threads of spring shaft (item 20) during installation.
B. Apply grease to traction pedal shaft (item 5) where the shaft contacts
bearing (item 22) and bushing (item 27).
C. Use a press to install roll pin (item 32). DO NOT distort roll pin during
assembly.
D. Make sure that roll pin (item 32) is fully inside the butterfly plate (item
23). The roll pin should not contact the shim plate or bearing throughout
the operating range.
E. To install the traction pedal position sensor (item 29), press and hold the
traction pedal in the reverse direction slightly. Align the slot on the end
of the pedal shaft with the slot in the position sensor. Hold the position
sensor against the hub and bushing assembly and install the two (2)
standoffs (item 28) through the sensor body. Install the cover plate (item
30), socket head screws and lock nuts. Tighten socket head screws (item
31) from 1.5 to 2.0 N·m (13 to 17 in−lb).
IMPORTANT
Page 7–38 Groundsmaster ® 5900 & 5910
16227SL Rev B