Non-Wheel Clutch Traction Drive System; General Description; Disassembly - Toro Power Max Service Manual

GENERAL DESCRIPTION

The traction drive system begins with a belt from the
engine crankshaft to a combination pulley/drive plate.
The belt is tensioned by a spring loaded idler so the
pulley/drive plate rotates whenever the engine is running
(Fig. 098).
A
A. Idler
Perpendicular to the drive plate is a rubber coated
friction wheel. In neutral there is a gap between the plate
and wheel. When the traction bail is squeezed the drive
plate pivots to the rear and begins to drive the friction
wheel. This in turn causes the hex shaft, chain, gears
and axle to rotate. The direction of rotation and speed
are determined by the point on the drive plate the wheel
makes contact. Moving the wheel from side to side will
change direction of rotation and the farther out from
center the wheel contacts the plate, the faster the speed.
Power Max Service Manual
TRACTION DRIVE SYSTEM
Fig 098
MVC-009F.jpg
NON-WHEEL CLUTCH
In forward the wheel will contact the left side of the drive
plate (Fig. 099).
A
A. Friction Wheel

Disassembly

To disassemble the traction drive assembly, proceed as
follows:
1. Drain the fuel tank and stand the unit on end.
Remove the belt covers.
B
Fig 099
MVC-003A.jpg
B. Drive Plate
8-1