Bi-Speed Turn System; Feature; Related Parts And Arrangement - wsm STW37 Workshop Manual

STW34, STW37, STW40, WSM

[3] BI-SPEED TURN SYSTEM

(1) Feature

It is used hydraulic and electrical control type bi-speed turn system.
The front wheel rotates by 1.5 times the speed compared with normal 4WD when the following conditions become
complete.
Condition:
• Engine running
• 4WD mode
• Turned on the bi-speed switch
• Front wheel is steered to 0.61 rad (35 °) or more.
• The travelling speed within 0.2 to 9.0 km/h (0.13 to 5.62 mph)

(2) Related Parts and Arrangement

Bi-speed Controller
This controller operates the bi-speed valve under
specified condition based on the information from the
front wheel turning angle sensor and travelling speed
sensor. The bi-speed switch (1) is on the controller. The
checking and adjusting of the bi-speed turn system can
be done by handling this controller.
(1) Bi-speed Switch
9-M17
ELECTRICAL SYSTEM
9Y1211109ELM0023US0
(1) Front Wheel Turning Angle
Sensor
(2) Bi-speed Valve
(3) Hydraulic Clutch (Bi-speed)
(4) Bi-speed Controller
(5) Travelling Speed Sensor
9Y1211109ELM0024US0
(2) Bi-speed Controller
9Y1211109ELM0025US0
KiSC issued 11, 2014 A