Mec Mast Series, Service & Parts Manual

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Page 37 Mast Seres - Servce & Parts Manual
May 2021 Secton 11 - Control System
Error Indicator Readout
Art_5533
If the LED diagnostic readout displays an error code, such as LL, push in and turn
the red Emergency Stop button to reset the system.
Fault Description Models Solutions
01/10 System Initialization Fault All Models Check ECU
02/20
System Communication
Fault
All Models
Check platform control box, check wiring to
platform connector, check ECU, check battery
voltage, check relay in lower cabinet
Micro26® Check height sensor, check pressure sensor
03 Invalid Option Setting All Models Reset option code
12
Chassis Up Or Down Switch
ON At Power-Up
All Models Check wiring to toggle switch, check toggle switch
18 Pothole Guard Fault All Models
Check pothole limit switch, check pothole bar
functionality, recalibrate height
30/35 No Functions All Models Remove telematics from hour meter
31 Pressure Sensor Fault All Models
Check option code (older machines), check
wiring to pressure sensor, check pressure sensor,
recalibrate overload
32 Angle Sensor Fault All Models
Check wiring to angle sensor (operating range 1.9-
3.8V), check option code
36 Low Voltage Fault
All Models
(Newer Machines)
Check battery voltage, check battery connections,
load test batteries, replace batteries ONLY if
necessary, charge machine
42
Left Turn Switch ON At
Power-Up
All Models
Check joystick left steer button, check platform
controller, replace joystick
43
Right Turn Switch ON At
Power-Up
All Models
Check joystick right steer button, check platform
controller, replace joystick
46
Joystick Enable Switch ON
At Power-Up
All Models
Enable pushed before self-check finished, check
dead-man switch, replace joystick
47
Joystick Not In Neutral At
Power-Up
All Models Check joystick for centering, replace joystick
52 Drive Forward Coil Fault All Models Check option code
53 Drive Reverse Coil Fault All Models Check option code
54 Up Coil Fault All Models
Check lift coil for voltage, check resistance on coil,
replace lift coil
55 Down Coil Fault All Models
Check down coil for voltage, check resistance on
coil, replace down coil
56 Right Steer Coil Fault All Models
Check steer coil for voltage, check resistance on
coil, replace steer coil
57 Left Steer Coil Fault All Models
Check steer coil for voltage, check resistance on
coil, replace steer coil
58
Brake Coil Fault
Brakes Are 46 Ohms •
All Models
Check brake module and wiring, check brakes and
wiring, check battery voltage
60 Motor Controller Fault All Models Cycle power to machine, replace motor controller