Snorkel TM12 Service Manual

Troubleshooting
4-3
D IAGNOSTICS U SING EZ CAL DISPLAY
The EZcal Display can be switched into calibration mode to become an invaluable tool when
troubleshooting on this machine.
Switch the machine on, press and hold Esc for 5 seconds until “Ezlift menu” is displayed
then select diagnostics, the following menu’s are available:
1. SYSTEM – MODE : Platform or Ground Controls selected.
SUPPLY : Displays battery voltage, should be above 18v
when the machine is not running.
VALVE SUPPLY : ON or OFF
MOTOR V : Supply voltage to motor (0v when motor
not running.
MOTOR I : Supply current to motor (0A when motor
not running
TEMPERATURE: Control temperature in °c, should be
below 60.
TILT : Displays tilt angle of the machine in X and Y
direction, both should be below 2°.
TILTED : YES or NO
The remaining submenu’s in SYSTEM are not applicable to this machine.
2. PLATFORM - Checks the function of the switches and joystick
functions in the platform controller.
3. GROUND - Checks the function of the switches
in the ground controller.
4. INPUTS - Displays the condition of all inputs to the EZ230, see the
following table and the circuit diagram on page 5.2 for a list of I/0’s.
5. ANALOG - Displays the condition of all analog inputs from the EZ230.
6. OUTPUTS - Displays the condition of all outputs from the EZ230.
I/O P OR T DE S C R IP T ION
P1-1
5V to Joystick (low current)
P1-3
0V to Joystick (low current)
P1-4
Joystick analog input
P2-7
B+ feed (low current, for switches and sensors only)
P2-8
Lift down valve return (0V=active) CT13
P3-1
EMS Platform (B+ during platform mode)
P3-2 Valve supply (high current B+ during platform mode, supplies all valve
outputs) P3-1 P3-2 are connected together
P3-6
Drive select switch (B+=active)
P3-7
Lift select switch (B+=active)
P3-8
Steer right switch (B+=active)
P3-9
Steer left switch (B+=active)
P3-12
Trigger switch (B+=active)
P4-1
EMS Ground (B+ during ground mode)
P4-4
Lift down switch (B+=active in ground mode only)
P4-5
Lift up switch (B+=active in ground mode only)
P4-6
Stack Proximity Switch (B+=lowered, open=elevated)
P4-7
Not used - Connect to P2-7
P5-1
Line contactor output (B+ when active)
P5-2
Forward valve output (B+ when active) CT11A
P5-3
Reverse valve output (B+ when active) CT11B
P5-4
Pothole Retract valve output (B+ when active) CT12
P5-6
Steer left valve output (B+ when active) CT6A
P5-8
Steer right valve output (B+ when active) CT6B
P5-10 Ground Alarm output (B+ when active)
P5-11
Up valve output (B+ when active) CT7
P5-12
Down valve output (B+ when active) CT13

Snorkel TM12 Specifications

General

Brand	Snorkel
Model	TM12
Category	Lifting Systems
Language	English