132
SJ82 T, SJ86 T
229040ABA
Section 4 – Troubleshooting Information
Electrical System
3.
No output on x-axis of joystick controller A1.
Refer to joystick test procedure in section 5.
4.
Loose or broken wire “X” from joystick controller
A1 to valve driver pin #28.
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.
6.
No output on pin #35 of the valve driver to wire
#33.
Check pin #10 for minimum 3.5 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
7.
Loose or broken wire #33 from valve driver
pin #35 to plug A pin #15 in platform control
console.
Check continuity. Replace if defective.
8.
Loose or broken wire #33 in boom cable A or its
connectors.
Check for continuity between pins #15 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
9.
Loose or broken wire #33 from base connector
plug A pin #15 to base terminal block.
Check continuity. Replace if defective.
10.
Loose or broken wire #33 from base terminal
block to turret harness plug pin #11.
Check continuity. Replace if defective.
11.
Loose or broken wire #33 from turret harness
plug pin #11 to turret right valve 4H-33.
Check continuity. Replace if defective.
12.
Loose or broken wire #02 from turret harness
plug to turret right valve 4H-33.
Check continuity. Replace if defective.
13.
Defective turret right valve coil 4H-33.
Check continuity and resistance through coil.
Replace if defective.
No Telescope In
1.
Loose or broken purple wire from speed
controller to resistor R9 in platform control
console.
Check continuity. Replace if defective.
2.
Open or defective resistor R9.
Check resistor. Replace if defective.
3.
Loose or broken wire #38B from resistor R9 to
telescope switch S18.
Check continuity. Replace if defective.
4.
Defective telescope switch S18.
Check continuity through switch while activating
the function between wires #38B and #38A.
5.
Loose or broken wire #38A from telescope
switch S18 to valve driver pin #32.
Check continuity. Replace if defective.
6.
Voltage out of range at valve driver pin #32.
Check voltage while operating telescope in. Voltage
should be between 4.75 and 5.25 volts. Refer to
telescope voltage reference table in section 5 if out
of this range.
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