105
SJ30AJE, SJ30ARJE
196274AF
Electrical System
Section 4 – Troubleshooting Information
4.2-25 No Riser Down 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.
Check resistor. Replace if defective.
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 down. Voltage
should be 4.83 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 #19 of the valve driver to wire
#30C.
Check pin #19 for minimum 6.2 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
9.
Loose or broken wire #30C from valve driver pin
#19 to relay 204CR1.
Check continuity. Replace if defective.
10.
Defective N/C contacts in relay 204CR1.
Check continuity between wires #30C and #30.
Replace if continuity not found.
11.
Loose or broken wire #30 from relay 204CR1 to
plug A pin #12 in platform control console.
Check continuity. Replace if defective.
12.
Loose or broken wire #30 in boom cable A or its
connectors.
Check for continuity between pins #12 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
13.
Loose or broken wire #30 from base connector
plug A pin #12 to base terminal block.
Check continuity. Replace if defective.
14.
Loose or broken wire #30 from base terminal
block to relay 162CCR.
Check continuity. Replace if defective.
15.
Loose or broken wire #162C from diodes D162-1
and D59-2 to relay 162CCR.
Check continuity. Replace if defective.
16.
Loose or broken wire #02 from base terminal
block to relay 162CCR.
Check continuity. Replace if defective.
17.
Defective relay 162CCR.
Check relay. Replace if defective.
18.
Loose or broken wire #02 from base terminal
block to riser down harness.
Check continuity. Replace if defective.
Содержание SJ30AJE
Страница 1: ...SERVICE MANUAL ARTICULATING BOOM 196274AF November 2018 ANSI CSA CE AS KC SJ30AJE SJ30ARJE ...
Страница 4: ...4 SJ30AJE SJ30ARJE 196274AF Notes ...
Страница 10: ...10 SJ30AJE SJ30ARJE 196274AF 5 7 1 Lubrication 188 ...
Страница 45: ...45 SJ30AJE SJ30ARJE 196274AF Section 3 System Component Identification and Schematics ...
Страница 68: ...A B C D E F G H V Z Y X W 68 SJ30AJE SJ30ARJE 196274AF ...
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Страница 190: ...www skyjack com ...