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