Skyjack SJKB-40-D Operating Maintenance Instructions & Part List page 65

TROUBLE
NO PLATFORM ROTATE
RIGHT FROM PLATFORM
OR BASE CONTROLS
NO PLATFORM ROTATE
LEFT OR RIGHT FROM
PLATFORM CONTROLS
NO PLATFORM ROTATE
LEFT FROM PLATFORM
CONTROLS
NO PLATFORM ROTATE
RIGHT FROM PLATFORM
CONTROLS
SECTION 4, Page 14
TROUBLESHOOTING (Cont.)
PROBABLE CAUSE
ELECTRICAL SYSTEM (Cont.)
1. Loose or broken wire #37 from
base terminal block TB3 to relay
37CR.
2. Loose or broken wire #02 from
relay 37CR to base terminal block
TB3.
3. Defective relay 37CR.
4. Loose or broken wire #09 from
base terminal block TB3 to relay
37CR.
5. Loose or broken wire #37A from
relay 37CR to platform rotate left
valve coil 4H-37A.
6. Defective platform rotate left valve
coil 4H-37A.
7. Loose or broken wire #02 from
platform rotate right valve coil 4H-
36A to base terminal block TB3.
8. Open diode D37.
1. Loose or broken wire #08 from
platform terminal block TB1 to
platform rotate switch S19.
2. Defective platform rotate switch
S19.
1. Defective platform rotate switch
S19.
2. Loose or broken wire #36 from
platform rotate switch S19 to
platform terminal block TB2.
3. Loose or broken wire #36 from
platform terminal block TB2 to
base terminal block TB3.
1. Defective platform rotate switch
S19.
2. Loose or broken wire #37 from
platform rotate switch S19 to
platform terminal block TB2.
3. Loose or broken wire #37 from
platform terminal block TB2 to
base terminal block TB3.
JUN. 1999
REMEDY
1. Check Continuity. Replace if
defective.
2. Check Continuity. Replace if
defective.
3. Check Relay.
defective.
4. Check Continuity. Replace if
defective.
5. Check Continuity. Replace if
defective.
6. Check Continuity through coil.
Replace if defective.
7. Check Continuity. Replace if
defective.
8. Check Diode.
defective.
1. Check Continuity. Replace if
defective.
2. Check Switch.
defective.
1. Check Switch.
defective.
2. Check Continuity. Replace if
defective.
3. Check Continuity. Replace if
defective.
1. Check Switch.
defective.
2. Check Continuity. Replace if
defective.
3. Check Continuity. Replace if
defective.
SJKB-40-D, SJKB-40-D/F
Replace if
Replace if
Replace if
Replace if
Replace if