104
SJ30AJE, SJ30ARJE
196274AF
Section 4 – Troubleshooting Information
Electrical System
4.2-24 No Riser Up from Platform Control Console
1.
Loose or broken L wire from speed controller to
resistor R1 in platform control console.
Check continuity. Replace if defective.
2.
Open or defective resistor R1.
3.
Loose or broken wire #30B from resistor R1 to
riser switch S7.
Check continuity. Replace if defective.
4.
Defective riser switch S7.
Check continuity through switch while activating
the function between wires #30B and #30A.
5.
Loose or broken wire #30A from riser switch S7
to valve driver pin #27.
Check continuity. Replace if defective.
6.
Voltage out of range at valve driver pin #32.
Check voltage while operating riser up. Voltage
should be 2.41 volts. Refer to toggle switch voltage
reference worksheet in section 5 if out of range.
7.
No output on pin #23 of the valve driver to wire
#20A.
Check pin #23 for proportional voltage. This
voltage varies with the A3 boom speed control. If
no voltage present with foot on footswitch check
section 5 for OCM pin voltage reference.
8.
No output on pin #23 of the valve driver to wire
#20A.
Check pin #10 for minimum 4.5 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
9.
Loose or broken wire #31 from valve driver
pin #10 to plug A pin #13 in platform control
console.
Check continuity. Replace if defective.
10.
Loose or broken wire #31 in boom cable A or its
connectors.
Check for continuity between pins #13 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
11.
Loose or broken wire #31 from base connector
plug A pin #13 to base terminal block.
Check continuity. Replace if defective.
12.
Loose or broken wire #31 from base terminal
block to main manifold harness.
Check continuity. Replace if defective.
13.
Loose or broken wire #31 from main manifold
harness to riser up valve 2H-31.
Check continuity. Replace if defective.
14.
Loose or broken wire #02 from main manifold
harness to riser up valve 2H-31.
Check continuity. Replace if defective.
15.
Defective riser up valve coil 2H-31.
Check continuity and resistance through coil.
Replace if defective.
Summary of Contents for SJ30AJE
Page 1: ...SERVICE MANUAL ARTICULATING BOOM 196274AF November 2018 ANSI CSA CE AS KC SJ30AJE SJ30ARJE ...
Page 4: ...4 SJ30AJE SJ30ARJE 196274AF Notes ...
Page 10: ...10 SJ30AJE SJ30ARJE 196274AF 5 7 1 Lubrication 188 ...
Page 45: ...45 SJ30AJE SJ30ARJE 196274AF Section 3 System Component Identification and Schematics ...
Page 68: ...A B C D E F G H V Z Y X W 68 SJ30AJE SJ30ARJE 196274AF ...
Page 128: ...128 SJ30AJE SJ30ARJE 196274AF Notes ...
Page 189: ......
Page 190: ...www skyjack com ...