Greensmaster 3300/3400Page 6 -- 24Electrical System
Adjustments
Parking Brake Switch
The parking brake switch is a normally open proximity
switch that mounts to the frame bracket used to attach
theparkingbrakeleverassembly(Fig.17).Thesensing
plate for the brake switch is a tab on the parking brake
lever assembly. The Toro Electronic Controller (TEC)
monitors the operation of the parking brake switch.
When the parking brake is not applied, the tab on the
parking brake lever is positioned near the target end of
the parking brake switch c ausing the switch to close.
The tab on the parking brake lever is moved away from
theswitchwhentheparkingbrakeisappliedcausingthe
switch to open.
Adjustment
1. When the parking brake is not applied, the gap be-
tweentheparking brakeswitch andthe tabon thepark-
ing brake lever s hould be 0.125” (3.2 mm) (Fig. 17).
2. Ifgapisincorrect,loosenjamnutsthatsecureswitch
to frame bracket. Position switch with jam nuts to allow
correctgapbetweenswitchandbrakelevertab.Tighten
jam nuts to secure adjustment. Jam nuts should be
torquedfrom162 to 198 in--lb(18.4 to 22.3N--m).After
jam nuts are tightened, make sure that clearance be-
tweenheadofparkingbrakeswitchandtabonthepark-
ing brake lever has not changed.
3. Afteradjustmenttotheparkingbrakeswitch,usethe
Diagnostic Display to verify that parking brake switch
andcircuitwiringarefunctioningcorrectly(seeDiagnos-
tic Display in the Troubleshooting section of this chap-
ter).
1. Brake lever
2. Parking brake switch
3. Brake lever tab
4. Gap
Figure 17
2
1
3
4
1. Parking brake switch
2. Parking brake lever
3. Jam nut (2 used)
4. Lock washer (2 used)
Figure 18
2
1
3
4
3
4
162 to 198 in--lb
(18.4 to 22.3 N--m)
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