129
SJ82 T, SJ86 T
229040ABA
Electrical System
Section 4 – Troubleshooting Information
No Manual Platform Level Up
NOTE
This function times out after 15 seconds when operating this function only
1.
Loose or broken wire #08 from platform terminal
block (ANSI) or wire 26A from OCM pin 19 (CE,
AS) to platform level switch S19.
Check continuity. Replace if defective.
2.
Defective platform level switch S19.
Check continuity through switch while activating
level up function between wires #08 and #41. If no
continuity found replace switch.
3.
Loose or broken wire #41 from platform level
switch S19 to platform terminal block.
Check continuity. Replace if defective.
4.
Open diode D41 located in platform terminal
block.
Check diode. Replace if defective.
No Manual Platform Level Down
NOTE
This function times out after 15 seconds when operating this function only
1.
Loose or broken wire #08 from platform terminal
block to platform level switch S19.
Check continuity. Replace if defective.
2.
Defective platform level switch S19.
Check continuity through switch while activating
level up function between wires #08 and #40. If no
continuity found replace switch.
3.
Loose or broken wire #40 from platform level
switch S19 to platform terminal block.
Check continuity. Replace if defective.
4.
Open diode D40 located in platform terminal
block.
Check diode. Replace if defective.
No Boom Up From Platform Control Console
1.
Loose or broken wire #04 from platform terminal
block to joystick controller A1.
Check continuity. Replace if defective.
2.
Loose or broken wire #02 from platform terminal
block to joystick controller A1.
Check continuity. Replace if defective.
3.
No output on y-axis of joystick controller A1.
Refer to joystick test procedure in section 5.
4.
Loose or broken wire “Y” from joystick controller
A1 to valve driver pin #29.
Check continuity. Replace if defective.
5.
No output on pin #5 of the valve driver to wire
#20B.
Check pin #5 for 12 volts. If no voltage present with
foot on footswitch check section 5 for OCM pin
voltage reference.
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