SECTION 4, Page 9
SJ-600 Series Engine Powered
112715
June 2001
ELECTRICAL SYSTEM
TROUBLESHOOTING INFORMATION
TROUBLE
PROBABLE CAUSE
REMEDY
3. Loose or broken wire #16 joystick
controller (S7) to platform terminal
block.
4. Loose or broken wire #16 from
platform terminal block to relay
(16CR).
5. Defective relay (16CR).
6. Loose or broken wire #02 from relay
(16CR) to base terminal block.
7. Loose or broken wire #04 from base
terminal block to relay (16CR).
8. Loose or broken wire #16A from
relay (16CR) to time delay relay
(1TD).
9. Defective time delay relay (1TD).
10. Loose or broken wire #16B from time
delay relay (1TD) to reverse valve coil
(4H16B).
11. Defective forward valve coil (4H16B).
12. Loose or broken wire #02 from
forward valve coil (4H16B) to base
terminal block.
13. Open diode (D16A-1) or (D16A-2).
1. Loose or broken wire #21 from base
terminal block to relay (17ACR).
2. Defective relay (17ACR).
3. Loose or broken wire #18A from
relay (17ACR) to small pump dump
valve solenoid.
4. Defective small pump dump valve
coil (2H18A).
5. Loose or broken wire #02 from small
pump dump solenoid (2H18A) to
base terminal block.
1. Defective second speed switch (S7-
1) in joystick controller (S7).
2. Defective joystick controller (S7).
3. Loose or broken wire #19 from
joystick controller (S7) to platform
terminal block.
4. Loose or broken wire #19 from
platform terminal block to relay
(35CR).
5. Defective relay (35CR).
6. Loose or broken wire #10A from
base terminal block to high drive/tilt
override limit switch (LS5).
7. Misadjusted or defective high drive/
tilt override limit switch (LS5).
8. Loose or broken wire #35 from high
drive/tilt override limit switch (LS5) to
base terminal block.
3. Check continuity. Replace if
defective.
4. Check continuity. Replace if
defective.
5. Check relay. Replace if defective.
6. Check continuity. Replace if
defective.
7. Check continuity. Replace if
defective.
8. Check continuity. Replace if
defective.
9. Check relay. Replace if defective.
10. Check continuity. Replace if
defective.
11. Check coil. Replace if defective.
12. Check continuity. Replace if
defective.
13. Check diodes. Replace if defective.
1. Check continuity. Replace if
defective.
2. Check relay. Replace if defective.
3. Check continuity. Replace if
defective.
4. Check coil. Replace if defective.
5. Check continuity. Replace if
defective.
1. Check switch. Replace if defective.
2. Check joystick. Replace if defective.
3. Check continuity. Replace if
defective.
4. Check continuity. Replace if
defective.
5. Check relay. Replace if defective.
6. Check continuity. Replace if
defective.
7. Adjust switch. Replace if defective.
8. Check continuity. Replace if
defective.
FORWARD DRIVE
INOPERATIVE
(Continued)
FORWARD DRIVE
SPEED AND STEERING
INOPERATIVE
SECOND DRIVE SPEED
INOPERATIVE
Summary of Contents for SJ-7027
Page 215: ......
Page 216: ...Reliable lift solutions by people who care www skyjack com ...