MTS SWIFT 20 Ultra Sensor - Manual (Page 80)

SWIFT 20 Sensors 80
Test Track Vehicle for Slip Ring Sensor
Installing the Transducer
Attaching SWIFT and Wheel Assembly to the Vehicle
1. Before installing the SWIFT and wheel assembly, attach the slip ring anti-
rotate bracket to the vehicle.
Since the bracket is unique to each vehicle the slip ring anti-rotate bracket
must be provided by the customer. The following are guidelines for
manufacturing and locating the bracket. See the next figure.
• The bracket must be stiff, preferably steel or stiff aluminum tubing, so
as not to move or rotate when connected to an unsprung mass or
spindle which will allow the slip ring assembly to move with the tire as
the vehicle is moving or testing.
• The bracket must be positioned so as not to hit the fender at the
extreme end of the suspension travel.
• The bracket must maintain a minimum clearance from the tire so as not
to hit the tire when it is loaded and rotating.
2. Attach the wheel/transducer to the test vehicle.
Lubricate the lug bolt threads with Molykote g-n paste.
Tighten the lug nuts to the torque rating recommended for the wheel.
3. Attach the slip ring bracket (spider) and slip ring to the transducer.
A. The slip-ring bracket fits over the 10-pin connectors on the front of the
transducer at the locations labeled Board A and Board B. The slip-ring
bracket is similarly labeled to prevent connecting it the wrong way.
Note Use care when installing the slip-ring bracket. The 10-pin connectors are
keyed. The slip-ring bracket should be fitted on straight (without bending
or angling it) to make sure it engages both connectors simultaneously
and evenly.
B. Lubricate the threads and under the bolt heads of the eight M5 X 0.8
mm bolts with Molykote g-n paste. Insert them through the mounting
hole in the slip ring bracket and thread them into the transducer. Torque
them to 6.8 N•m (60 lbf•in).
C. Make sure that the covers on the shunt connectors are securely locked
in place. Each cover should be twisted until it snaps into the retaining
groove.
4. Attach the anti-rotate assembly to the anti-rotate bracket (installed earlier)
and the slip ring. If this is the first time the anti-rotate assembly is used on
this vehicle or if the mounting location has changed, perform Steps A and B,
otherwise proceed to Step C. (Refer to the next figure for guidelines.)
A. Weld the steel tube sleeve to the customer-supplied customer supplied
anti-rotate bracket.
B. Bend the aluminum tube to fit over the wheel.