Tiller arm 4000
Replacing the safety sensor
© BT Repair manual  SWE100, 120, 120L, 120S, 140, 140L, 200D 15 –   3
Order no.. Date Valid from serial no. T code
258946-120 2012-08-30 6061850- 841×842×843
15.4  Replacing the safety sensor
15.4.1 Dismantling
1. Remove the gas strut. See section "15.3 Replacing the gas strut".
2. Drive in the shaft's (L) spring pin (I). Use a suitable implement and 
drive the spring pin all the way into the shaft.
3. Drive out the shaft (L) approx. 5 mm to clear the hole for the spring 
pin. Take care not to pinch the indicator sleeve (M).
4. Turn the shaft (L) so that the back of the indicator sleeve (M) 
becomes accessible.
5. Remove the indicator sleeve (L).
To prevent damaging the indicator sleeve, pry it loose from both 
sides at the same time.
6. Knock out the shaft (L). 
Note:
Make sure the tiller arm does not drop and damages the wiring 
harness.
7. Remove the cable clip mounting screw (W).
8. Remove the sensor's mounting screw (W).
9. Remove connector B60 from the sensor (K).
10. Remove the sensor.
15.4.2 Installation
1. Fit the sensor (K)
2. Fit connector B60 to the sensor.
3. Put some Loctite on the threads of the sensor mounting screw (S), 
or replace the screw. Screw in the screw.
4. Fit the cable clip mounting screw (W). 
Note:
The cable must be routed to the right of the sensor (K), towards the 
spring pin.
5. Knock out the spring pin (I) from the shaft (L) and fit the shaft.
6. Fit the indicator sleeve and turn the shaft so that the sleeve is 
turned towards the sensor. Turn it just so much that the spring pin 
can enter the shaft.
7. Use a suitable implement and drive the spring pin into the yoke (O) 
and the shaft (L). The spring pin must be driven so far that the 
implement enters the yoke to a depth of approx. 19 mm. See 
illustration
.
8. Fit the gas strut. See section "15.3 Replacing the gas strut".
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