Nilfisk-Advance SW8000 Service Manual page 37

Service Manual – SW8000
Code Pin #
1,3 J1-3 Side broom solenoid (L3) overload
1,4 J1-4 Dust control solenoid (L4) overload
2,1 J1-5 Hopper up/down solenoid (L5) overload
Hopper up/bypass solenoid (L6)
2,2 J1-6
overload
Hopper door/open solenoid (L7)
2,3 J1-7
overload
Dust control bypass solenoid (L8)
2,4 J1-8
overload
3,1 J1-9 Hopper lower solenoid (L9) overload
3,2 J1-14 Shaker relay (K3) overload
3,3 J1-15 Back-up alarm overload
3,4 J1-16 Light relay (K2) overload
4,1 J1-18 Neutral start relay (K4) overload
Horn relay K1 overload
4,2 J1-19
Coil spec is 85 Ohms
Engine speed output overload
4,3 J1-17 Note the Gra/Blu wire is 0 V's when
engine is @ idle.
Spare overload
4,4 J1-12
Not used at this time
† When testing for short circuits, make sure the machine is off, and disconnect the connectors at the
solenoid or relay in question and also at the main controller. Then use an ohmmeter between the two
wires at the device, or between J1-11 and the listed J# from the table. The ohmmeter should show "open
circuit".
‡ When testing a coil resistance, disconnect the connector at the device and use an ohmmeter to measure
the resistance of the coil. If the value is below the minimum value from the table, replace the device.
Description Comments
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Brn/Blk)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Brn/Yel)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Red/Gra)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Blu/Gra)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Blk/Wht)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Brn)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Yel/Grn)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Yel/Red)
• Check wiring for a short circuit (Grn/Brn)
• If overload persists, replace the alarm.
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Yel/Wht)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Gry/Wht)
• Check coil resistance.
†
ohms nominal).
• Check wiring for a short circuit (Vio/Brn)
• Throttle input to engine ECM (A3) is 0V for idle and
+12V for high speed.
• Check Gra/Blu wire for a short to ground.
NA
Control System
If below 6 Ohms replace (8
‡
If below 6 Ohms replace (8
‡
If below 6 Ohms replace (8
‡
If below 6 Ohms replace (8
‡
If below 6 Ohms replace (8
‡
If below 4 Ohms replace (6
‡
If below 6 Ohms replace (8
‡
If below 70 Ohms replace (85
‡
‡
If below 70 Ohms replace (85
‡
If below 70 Ohms replace (85
‡
If below 70 Ohms replace (85
‡
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