Sevcon Electrical System Flash Codes - Skyjack SJ 8831E Maintenance And Parts Manual

Troubleshooting Information - Sevcon Electrical System Flash Codes
NOTE:
FLASH CODE TROUBLE
LED is off No functions
2 Flash Fault
3 Flash Fault
Procedure
Fault
4 Flash Fault
5 Flash Fault
No Drive
6 Flash Fault
and Lift
Low Battery
7 Flash Fault
Voltage
8 Flash Fault
Thermal
Cutback
10 Flash Fault
Tachometer
11 Flash Fault
Fault
Tilt Condition
12 Flash Fault with Platform
Elevated.
Transmission
13 Flash Fault Gear Mesh
Failure
Low or Open
14 Flash Fault Voltage to
Sevcon
SECTION 4, Page 10
A Steady Light on Sevcon Means System is Ready to Operate.
PROBABLE CAUSE
1. Batteries Disconnected.
2. Defective Sevcon.
1. Lift or Drive Selected Before
Power up.
1. Sevcon Shorted.
2. Drive Motor Shorted.
1. Contactor welded.
1. Contactor not shifted.
2. Defective Sevcon.
1. Loose or broken wire #59 from
upper control box to Pin #14 on
Sevcon.
2. Open or defective Base Speed
Relay (59ACR).
1. Batteries have dropped below
13 Volts.
1. Sevcon Overheating.
1. Loose or broken wire from Pin
#2 on Sevcon to Pin #4 on
Tachometer Board.
2. Loose or broken wire from Pin
#12 on Sevcon to Pin #2 on
Tachometer Board.
3. Loose or broken wire #T1 or
#T2 from Tachometer Generator
to Main Circuit Board.
1. Tachometer Generator
defective.
2. Tachometer Generator Wires
Reversed.
3. Defective Tachometer Board.
1. Tilt Condition with Platform
Elevated has disabled Sevcon
for Lift and Drive.
1. Incorrectly set Proximity Switch.
2. Defective Proximity Switch.
1. Loose or broken wire to Pin #5
on Sevcon.
2. Loose or broken wire to Pin #6
on Sevcon.
REMEDY
1. Reconnect batteries.
2. Replace Sevcon.
1. First Power Up and then Select
Function.
1. Replace Sevcon.
2. Replace Drive Motor.
1. Replace Contactor.
1. Clean Contactor. Replace if
defective.
2. Replace Sevcon.
1. Check continuity. Replace if
defective.
2. Check Relay. Replace if
defective.
1. Recharge Batteries.
1. Let unit cool down.
1. Check continuity. Replace if
defective.
2. Check continuity. Replace if
defective.
3. Check continuity. Replace if
defective.
1. Check output 20.8 Volts per
1000 RPM. Replace if defective.
2. Switch wires at Generator.
3. Check Tachometer Board for
inputs and outputs. Replace if
defective.
1. Lower Platform and Reposition
to a firm Level Surface.
1. Refer to Proximity Switch
Adjustment Procedure (Section
5, Page 11)
2. Refer to Proximity Switch Test
Procedure (Section 5, Page 12)
1. Check for 24 Volts between Pin
#5 and wire #02.
2. Check for 48 Volts between Pin
#6 and wire #02.
SJ-800 Series E Battery Powered
60311AA
119153