Driven Clutch
Principles of Operation (Fig. 17)
The operation of the driven clutch is affected by trans-
axle load. When the vehicle is stopped, the drive belt is
held attheouterdiameter ofthe clutch sheaves fromthe
pressure of the spring pushing the moveable sheave
against the fixed sheave and away from the fixed cam.
Three sets of buttons on the moveable sheave provide
a low friction surface on which the sheave can slide on
the ramp of the fixed cam.
1
5
2
Once the drive belt starts rotating, the drive clutch also
starts to rotate. With increasing speed of the drive
clutch, the drive belt begins to climb to the outer diame-
terofitssheaves.Thisincreasesthetensiononthedrive
belt, and forces the moveable sheave to move away
fromthefixedsheave againstthepressureofthespring.
As the belt tightens and the sheaves open up, the drive
belt rides lower in the clutch sheaves.
4
3
Figure 17
1.
2.
3.
Moveable sheave
Ramp (fixed cam)
Button
4.
5.
Fixed sheave
Drive belt
Withincreasedloadtothetransaxle,thecamresistsfor-
ward movement relative to the moveable sheave and
drivebelt.Torquefromthedrivebeltandspringpressure
moves the movable sheave up the ramp of the fixed
cam. The drive belt becomes positioned closer to the
outer diameter of the clutch sheaves.
4
5
3
Removal (Fig. 18)
1.
parking brake, and remove key from the ignition switch.
Park machine on a level surface, stop engine, set
2.
(see Muffler Removal in Engine Chapter).
Remove muffler from the engine and engine mount
2
1
Loctite #242
3.
vice Drive Belt in Service and Repairs section of Engine
Chapter).
Remove drive belt from the driven clutch (see Ser-
Never seize
Figure 18
4.
equipped) securing the driven clutch to theinput shaft of
the transaxle.
Remove cap screw, washer, and spacer (if
1.
2.
3.
Cap screw
Washer
4.
5.
Driven clutch
Input shaft (transaxle)
Spacer (if equipped)
5.
Pull driven clutch from the input shaft.
Installation (Fig. 18)
Coat input shaft of the transaxle with never seize lu-
1.
bricant.
2.
pulley side of the clutch faces away from the transaxle
case.
Position driven clutch to the input shaft. Make sure
3.
Apply Loctite #242 (blue) (or equivalent) to the cap
screw threads.
Drive Train
Page 5 -- 12
Workman 1100/1110/2100/2110
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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