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Skyjack SJ3219 Service Manual

Skyjack SJ3219
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SJ3215, SJ3219
212508ADA
Section 4 – Troubleshooting Information Electrical System
12. Loose or broken wire #51 from Anti-Overrising
Limit switch LS7A to Control Module CM1 pin
#P3-11.
Check continuity to make sure input is high to
signal limit switches are not jammed open.
Test for 24V Output voltage between wire #51 and
wire #00.
Use HMI Diagnostic menu to make sure output
P3-11 signal is present.
Replace if defective.
13. Closed or defective Anti-Overrising Limit switches
LS7A, LS7C, LS7D, and/or LS7B N.O contacts.
Check switches.
Check continuity between wire #08C and wire
#51A. N.O. contacts on all Limit switches for input
to Control Module CM1 pin #P3-10 signaling one or
more of the limit switches are jammed closed.
Test for 24V Output voltage between wire #51A and
wire #00.
Use HMI Diagnostic menu to make sure output
P3-11 signal is NOT present.
Replace Limit switch or switches that are defective.
14. Loose or broken wire #59 from Joystick S7 to
Control Module CM1 pin #P1-2.
Check continuity. Use HMI Diagnostic menu to
make sure proportional input P1-2 signal is present.
Replace if defective.
15. Loose or broken wire #14 from Control module
CM1 pin #P5-5 to Up valve coil 3H-14.
Check continuity. Test for 24V Output voltage
between wire #14 and wire #00.
Use HMI Diagnostic menu to make sure output P5-5
signal is present.
Replace if defective.
16. Loose or broken wire #00 from Battery (-) to Up
valve coil 3H-14.
Check continuity. Replace if defective.
17. Defective up valve coil 3H-14. Check continuity through coil. Replace if defective.
18. Machine overloaded and Overload Lights PL-1
and PL-2 on Emergency Stop buttons flashing.
Check machine limits and reduce weight as
required.
Check Pressure Transducer PT1 and Angle
Transducer AT1 functionality
Check wire #60 from Control Module CM1 pin
#P1-8 (overloaded signal)
Test for 24V Output voltage between wire #60 and
wire #00.
Use HMI Diagnostic menu to make sure Output
P1-8 signal is present (pulsed).
19. Machine not level.
Move machine and ONLY use on level surface.
Check Control module CM1 display.
20. Check machine Tilt Procedure.
Check Control Module CM1 display screen and
perform Tilt Calibration Procedure ONLY if level has
been checked and needs adjustment.

Table of Contents

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Skyjack SJ3219 Specifications

General IconGeneral
Gradeability25%
Power SourceElectric
Drive Motor24V DC
Tire TypeSolid, non-marking
Lift Capacity550 lbs
Machine Width32 in
Machine Length70 in
Drive Speed (Stowed)2 mph
Drive Speed (Raised)0.8 km/h
Turning Radius (Inside)0 in (0 m)
Battery4 x 6V
Working Height25 ft

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