Toro Multi Pro 1200 Service Manual page 171

Ramp Button Replacement (Fig. 15)
1. Remove drive belt from the driven clutch (see Drive
Belt Service).
2. Turn fixed and moveable sheaves in opposite direc-
tions so buttons are separated sufficiently enough from
the ramp to allow removal.
3. Place small block of wood between the outer ramps
to keep the ramps apart.
CAUTION
To prevent burns when heating, hold allen
wrench with locking pliers.
4. Clamp long end of a 2 mm allen wrench with locking
pliers. Heat short end of the allen wrench until it is red
hot.
5. Insert hot end of the allen wrench into the button so
the button melts around the end of the wrench. Hold
wrench in place until the button hardens.
6. Pull and twist on the allen wrench to remove the but-
ton from the ramp.
NOTE: If the new button is difficult to install, sand its
mounting tab as necessary. If the button is loose, apply
Loctite #242 (or equivalent) on its mounting tab.
7. Install new button to ramp. Push button in straight
with a screw driver by prying against the ramp.
8. Remove and install remaining buttons.
9. Install drive belt to the driven clutch (see Drive Belt
Service).
Check Driven Clutch Spring Torsion (Fig. 15)
1. Place transaxle in gear to prevent the fixed sheave
from moving.
2. Remove drive belt from the driven clutch (see Drive
Belt Service).
IMPORTANT: Use protective strips of soft metal
when clamping the moveable sheave with locking
pliers to prevent damage to the sheave.
3. Clamp moveable sheave with locking pliers.
Multi Pro 1200/1250
4. Measure spring torsion.
A. Pull spring tension scale tangentially to the outer
diameter of the moveable sheave.
B. When the button on the ramp of the moveable
sheave is 0.125" (3.18 mm) from the ramp of the
fixed sheave, read the scale.
C. The reading should be 16 to 20 lbf (71 to 89 N).
5. If the above specification is not met, replace the driv-
en clutch.
6. Install drive belt to the driven clutch (see Drive Belt
Service).
5
2
1. Moveable sheave
2. Drive belt
3. Button
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3
4
Figure 15
4. Ramp (fixed sheave)
5. Fixed sheave
Drive Train