Nilfisk-Advance R 253 9087362020 Service Manual page 47

Service Manual – Scrubtec R 253 - RA40
Shop Measurements - Function Electronic Board (EB1) (continues)
J2 - 2 Ways
Figure 37
PIN Color Circuit Description
1
Black 2 Deck actuator power supply +/-
2 Black 1 Deck actuator power supply -/+
J3 - 6 Ways
Figure 38
PIN Color Circuit Description
1 Br/Blk Squeegee actuator power supply +/-
2
Or/Blk Driver's seat microswitch power
supply
3 Wh/Blk Auxiliary power supply - Beacon
4 Bl/Blk Squeegee actuator power supply -/+
5 Or/Blk Return from driver's seat microswitch
6 White Auxiliary power supply + Beacon
Measured
24.4V
0.04V
24.3v
24.4V
23.7V
0.07V
Measured
23V
23.7V
0.07V
0.02V
0V
0V
0.08V
23.9V
4.98V
0.003V
24.39V
Control System
Comments
At rest
Extending (deck down)
Retracting (deck up)
At rest
Extending (deck down)
Retracting (deck up)
Comments
At rest
Extending (Squeegee down)
Retracting (Squeegee up)
On or off seat
At rest
Extending (Squeegee down)
Retracting (Squeegee up)
Off seat
On seat
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