Skyjack SJ16 Service Manual

72
213558ADA
SJ12, SJ16
Section 4 – Troubleshooting Information Electrical System Troubleshooting
4.2-3 All Controls Inoperative From Base Control Console
1. Open or defective Idle/PLTF/Base Key switch
S10.
Operate switch. Check continuity between wire
#5A and wire #07 when Base selected.Check
continuity between wire #07 and wire #10E when
Base selected.Replace if either contact is defective
on switch.
2. Loose or broken wire #10E from Idle/PLTF/Base
Key switch S10 to Up/Down switch S2.
Check continuity. Replace if defective.
3. Open or defective Up/Down switch S2.
Operate switch. Check continuity between wire
#10E and wire #14B on switch (when selected on
Up).Check continuity between wire #10E and wire
#13 on switch (when selected to Down).Replace
switch if no continuity when operating switch.
4.2-4 No Up Function from Base Control Console
1. Open or defective Up/Down switch S2. Operate switch. Check continuity between wire
#10E and wire #14B on switch (when selected to
Up).Check continuity between wire #10E and wire
#13 on switch (when selected to Down).Replace
switch if no continuity when operating switch.
2. Loose or broken wire #14B from up/down switch
S2 to base terminal block.
Check continuity. Replace if defective.
3. Open diode D14B-1. Check diode. Replace if defective.
4. Open diode D14B. Check diode. Replace if defective.
5. Loose or broken wire #14 from base terminal
block to lift speed relay 14CR.
Check continuity. Replace if defective.
6. Loose or broken wire #14 from lift speed relay
14CR to Lift Speed Relay2 14CR1.
Check continuity. Replace if defective.
7. Open diode D14. Check diode. Replace if defective.
8. Defective low voltage protection resistor RST7.
Check resistor and make sure it is secure. Replace
if defective.
9. Loose or broken wire #14A from base terminal
block to up valve coil 4H-14A.
Check continuity. Replace if defective.
10. Loose or broken wire #02 from base terminal
block to up valve coil 4H-14A.
Check continuity. Replace if defective.
11. Defective up valve coil 4H-14A. Check continuity through coil. Replace if defective.
12. Loose or broken wire #19B from Limit switch LS3
to Control box connector pin #C9.
Check continuity. Replace if defective.
13. Defective Limit switch LS3. Check limit switch. Replace if defective.

Skyjack SJ16 Specifications

General

Gradeability	25%
Drive Motor	24V DC
Max Gradeability	25%
Platform Height	16 ft
Lift Capacity	500 lbs
Machine Width	0.76 m
Overall Width	0.76 m
Drive Speed (Stowed)	4.8 km/h
Drive Speed (Raised)	0.8 km/h
Turning Radius (Inside)	0 in
Power Source	24V DC Electric