Controls System Maintenance; Adjusting The Throttle Cable; Adjusting The Traction Pedal Linkage - Toro 30412 Groundsmaster 4000-D Operator's Manual

Figure 65
1. Hydraulic motor
5. Remove the old belt from around the spindle pulleys
and idler pulley.
6. Route the new belt around the spindle pulleys and
idler pulley assembly.
7. Position the hydraulic motor on the cutting unit after
routing the belt around the pulleys. Mount the motor
to the cutting unit with the bolts previously removed.
Note: Make sure the belt is positioned on the spring
side of the belt guide (Figure 64).
8. Reconnect the extension spring (Figure 64) to the
eye bolt and tension the belt as follows:
• When properly tensioned, the extension
spring (hook to hook) measurement should be
approximately 3.50 ±.25 inch (inside).
• Once the correct spring tension is attained,
adjust the stop bolt (carriage bolt) until there is
approximately .125 +.060/-.000 inch clearance
between the head of the bolt and the idler arm.
2. Mounting bolts
Controls System
Maintenance

Adjusting the Throttle Cable

Service Interval: After the first 50 hours—Check the
engine speed (at idle and full throttle).
Every 400 hours—Check the engine
speed (at idle and full throttle).
Adjust the throttle cable (Figure 66) so that the governor
lever on the engine contacts the low and high speed set
bolts before the throttle lever contacts the slot in the
control panel.
1. Throttle cable
Adjusting the Traction Pedal
Linkage
With the traction pedal in the mow position (low speed)
it should reach full stroke at the same time it makes
contact with the stop. If it does not, perform the
following procedure:
1. Park the machine on a level surface, stop the engine,
and lower the cutting units to the floor. Remove the
ignition key.
2. Check the traction pedal stop adjustment. The
distance from the top of the stand to the top of
the stop must be 1-1/2 inch (38 mm) (Figure 67).
Loosen the nuts and adjust, as required.
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Figure 66