Toro MDX-D Utility Vehicle User Manual


 
Workman MDX--DPage 4 -- 4Drive Train
Drive Train Operation
Clutch System Operation
Figure 1
v
1. Drive clutch
2. Driven clutch
3. Moveable sheave (drive clutch)
4. Fixed sheave (drive clutch)
5. Moveable sheave (driven clutch)
6. Spring
7. Fixed sheave (driven clutch)
8. CVT drive belt
5
3
1
4
6
2
7
LOW ENGINE SPEED
LIGHT LOAD
FULL ENGINE SPEED
DECREASING LOAD
FULL ENGINE SPEED
INCREASING LOAD
8
Power is transferred from the engine to the transaxle by
a variable clutch system that consists of two (2) clutches
connected by a drive belt. The drive clutch responds to
engine speed and is mounted to the engine crankshaft.
Thedriven clutchr esponds tochanges inloadto the rear
axle and is mounted to the transaxle input shaft.
The two (2) clutches work together to automatically up--
shift and back--shift aschanges inloadand speed occur.
This shifting changes theturning ratio between the drive
and driven clutches and allows the engine to operate at
optimum efficiency.