Skyjack SJ82 T Service Manual

160
SJ82 T, SJ86 T
229040ABA
Section 4 – Troubleshooting Information Load Sensing System - CE
4.4-4 No Light/Alarm when Platform is Overloaded
Overload Indicator Light does not Turn On when Platform is Overloaded:
1. Defective lamp Check lamp. Replace if defective
2. Load cell circuit not operating. Check Voltage across 1Ω (ohm) resistors 161 and
162 in base control console. See Fig. 1 above
3. Load sense/dual load zone module out of
calibration.
Calibrate module. Refer to section 5 of this manual
for procedure.
4. No output from module. Check Voltage at black connector J3 pin #3 for 12V
when platform is loaded with 110% of rated capac-
ity. (Boom fully retracted and 12” (30cm) off the
ground.)
5. Loose or broken wire #82 from the base terminal
strip to connector A pin #13.
Check continuity. Replace if defective.
6. Loose or broken wire #82 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.
7. Loose or broken wire #13 plug A pin #13 to
82CR pin 85.
Check continuity. Replace if defective.
8. Defective relay 82CR. Check relay. Replace if defective.
9. Load cell circuit not operating. Check for connections with wire #02A at pilot light
strip and relay 82CR, and wire #82 at platform
terminal block and relay 82CR.
Audible Alarm does not Turn ON when Platform is Overloaded:
1. Defective alarm BP3. Check alarm. Replace if defective.
2. Loose or broken wire #13 plug A pin #13 to
162ACR1 pin 30.
Check continuity. Replace if defective.
3. Loose or broken wire #118 from relay 162ACR1
to alarm BP3
Check continuity. Replace if defective.
4. Loose or broken wire #2 from alarm BP3 to
platform terminal block.
Check continuity. Replace if defective.
5. Defective relay 162ACR1. Check relay. Replace if defective.
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Skyjack SJ82 T Specifications

General

Brand	Skyjack
Model	SJ82 T
Category	Boom Lifts
Language	English