ELECTRICAL SYSTEM
B2650HSDC, B3350HSDC, WSM
8-M8
[4] SAFETY SWITCH
Type of Safety Switch
There are two types of safety switches, normally closed type and normally open type.
Normally closed type switch is electrically closed in normal condition.
Normally open type switch is electrically opened in normal condition.
Safety switches adopted in B2650 and B3350 tractor operate as sensor detecting and transmitting the position of
HST pedal, PTO lever, independent PTO lever, seat and parking brake to controller ECU.
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(1) PTO Shift Lever Switch
PTO Shift Lever Switch
This switch locates at transmission case (4).
This switch is a push type.
This switch detects the position of the PTO shift
lever.
When the PTO shift lever is at "REAR PTO"
position, this switch is turned to "ON".
When the PTO shift lever is at "Rear/Mid, Mid PTO"
position, this switch is turned to "OFF".
9Y1210822ELM0009US0
Normally Closed Type Normally Open Type
PTO Shift Lever Switch HST Pedal Switch
Independent PTO Lever Switch
Seat Switch
Parking Brake Switch
(1) PTO Shift Lever Switch
(2) PTO Shift Arm
(3) PTO Shift Rod
(4) Transmission Case
(5) PTO Shift Lever
A : Rear PTO Position
B : Rear PTO / Mid PTO
Position
C : Mid PTO Position