Repairs; Transmission Trunnion Seal Replacement - Toro Groundsmaster 300 Series Service Manual

Repairs

Transmission Trunnion Seal Replacement (Fig. 15)
1. Remove the control lever and the interlock switch
assembly from the trunnion shaft on the right side of the
transmission.
2. Remove the snap ring from the end of trunnion shaft
and slide the flat washer off of the shaft. Using a seal
puller; pull the seal out of the housing. Do not scratch
the shaft.
NOTE: Since oil drains out of the transmission when the
seal is removed, use a drain pan to catch the oil;
however, do not use this oil again.
3. Examine the trunnion shaft and remove all burrs,
sharp edges and residue.
4. Using a seal protector, press a new seal into the
transmission housing and assure that it is seated
Figure 15
properly.
NOTE: In place of a seal protector, use plastic wrap or
a similar material to wrap the shaft. This protects the lip
of the seal from possible damage when sliding it onto
the shaft and pressing it onto the housing.
5. Slide the flat washer onto the shaft and install the
snap ring into the groove at the end of the shaft. Do not
use a flat washer that is bent.
6. Install the control lever and the interlock switch as-
sembly on the right side of the transmission. Adjust the
traction pedal control rod and linkage for neutral, refer
to "Traction Control Neutral Adjustment".
7. Since some oil drained out of the transmission when
the seals were replaced, check the oil level in the axle
housing. Start the engine and let it run for about one or
two minutes. Then turn the engine off and check the oil
level in the axle housing again. Also check the seals in
the transmission for oil leaks.
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Repairs Page 5 - 26 Groundsmaster 300 Series