Skyjack Compact Rough Terrain Series - Page 81

SKYJACK, Page 82
SJRT Compact Series
Engine Powered
4.1-23. Up Circuit Inoperative From Base (Base Control Box Option)
1. Loose or broken wire #10E from base terminal block (TB1) to BASE/UP/DOWN switch (S2)
- Check continuity. Replace if defective.
2. Loose or broken wire #14E from BASE/UP/DOWN switch (S2) to base terminal block (TB1).
- Check continuity. Replace if defective.
3. Defective BASE/UP/DOWN switch (S2).
- Check switch. Replace if defective.
4. Open diode (D14E-1 or D10E).
- Check diode. Replace if defective.
4.1-24. Up Circuit Inoperative From Platform or Base (Machines Without Outriggers)
1. Loose or broken wire #14 from base terminal block (TB1) to outrigger connector (CN14) at pin #4.
- Check continuity. Replace if defective.
2. Loose or broken jumper wire between pin #4 and pin #10 on outrigger connector (CN14).
- Check continuity. Replace if defective.
3. Loose or broken wire #14A from outrigger connector (CN14) at pin #10 to base terminal block
(TB1).
- Check contiuity. Replace if defective.
4. Loose or broken wire #14A from base terminal block (TB1) to lift valve coil (3H-14A).
- Check continuity. Replace if defective.
5. Loose or broken wire #02 from lift valve coil (3H-14A) to base terminal block (TB1).
- Check continuity. Replace if defective.
6. Defective lift valve coil (3H-14A).
- Check coil. Replace if defective.
7. Defective diode (D14A-1).
- Check diode. Replace if defective.
4.1-25. Platform Will Not Lift From Platform or Base Controls With Outriggers
Retracted (Lift Operates Correctly With Outriggers Extended)
1. Outriggers not fully retracted.
- Fully retract outrigger cylinders.
2. Loose or broken wire #10A from base terminal block (TB1) to pin #15 on connector (CN22) at
the outrigger board.
- Check continuity. Replace if defective.
3. Loose or broken wire #10A from outrigger board to outrigger limit switch (LS64).
- Check continuity. Replace if defective.
4. Defective outrigger limit switch (LS64).
- Check switch. Replace if defective.
5. Loose or broken wire #64 from outrigger limit switch (LS64) to outrigger board.
- Check continuity. Replace if defective.
6. Loose or broken wire #64 from outrigger board to outrigger limit switch (LS63).
- Check continuity. Replace if defective.
7. Defective outrigger limit switch (LS63).
- Check continuity. Replace if defective.
8. Loose or broken wire #63 from outrigger limit switch (LS63) to outrigger board.
- Check continuity. Replace if defective.
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