Skyjack SJKB-40-D Operating Maintenance Instructions & Part List page 75

TROUBLE
BRAKES APPLY
QUICK ON LEVEL SUR-
FACE (Cont.)
ENGINE STAYS AT IDLE
(950 rpm) FROM PLAT-
FORM OR BASE CON-
TROLS
ENGINE STAYS AT IDLE
(950 rpm) FROM PLAT-
FORM CONTROLS
ENGINE STAYS AT IDLE
(950 rpm) FROM BASE
CONTROLS
NO HIGH RPMs FROM
PLATFORM
SECTION 4, Page 24
TROUBLESHOOTING (Cont.)
PROBABLE CAUSE
ELECTRICAL SYSTEM (Cont.)
TO
5. Loose or broken wire #28A from
relay 08CR3 to relay 28ACR.
6. Loose or broken wire #02 from relay
28ACR to base terminal block TB3.
7. Defective relay 28ACR.
8. Loose or broken wire #09 from base
terminal block TB3 to relay 28ACR.
9. Loose or broken wire #28B from
relay 28ACR to 5° brake valve coil
2H-28B.
10. Defective 5° brake valve coil 2H-
28B.
11. Loose or broken wire #02 from 5°
brake valve coil 2H-28B to base
terminal block TB3.
12. Brakes out of adjustment.
1. Loose or broken wire #78 from base
terminal block TB3 to barber/
colman controller BCB1.
2. Defective barber/colman controller
BCB1.
1. Loose or broken wire #08 from
platform terminal block TB1 to
base terminal block TB3.
2. Open diode D08.
1. Open diode D10.
1. Loose or broken wire #08 from
platform terminal block TB1 to high
engine switch S10.
2. Defective high engine switch S10.
3. Loose or broken wire #79 from high
engine switch S10 to platform
terminal block TB2.
4. Loose or broken wire #79 from
platform terminal block TB2 to
base terminal block TB3.
5. Loose or broken wire #79 from base
terminal block TB3 to barber/
colman controller BCB1.
6. Defective barber/colman controller
BCB1.
5.
6.
7.
8.
9.
10.
11.
12.
1.
2.
1.
2.
1.
1.
2.
3.
4.
5.
6.
JUN. 1999
REMEDY
Check Continuity. Replace if
defective.
Check Continuity. Replace if
defective.
Check Relay. Replace if
defective.
Check Continuity. Replace if
defective.
Check Continuity. Replace if
defective.
Check Continuity through coil.
Replace if defective.
Check Continuity. Replace if
defective.
Refer to section 5, "brake
adjustment procedure".
Check Continuity. Replace if
defective.
Refer to section 5, "barber/colman
troubleshooting".
Check Continuity. Replace if
defective.
Check Diode. Replace if
defective.
Check Diode. Replace if
defective.
Check Continuity. Replace if
defective.
Check Switch. Replace if
defective.
Check Continuity. Replace if
defective.
Check Continuity. Replace if
defective.
Check Continuity. Replace if
defective.
Refer to section 5, "barber/colman
troubleshooting".
SJKB-40-D, SJKB-40-D/F