SECTION 4, Page 2
SJ-600 Series Engine Powered
112715
June 2001
ELECTRICAL SYSTEM
5. Platform/base select switch (S10) set
to base position.
6. Open or defective platform/base
select switch (S10).
7. Loose or broken wire #7A from
platform/base select switch (S10) to
platform emergency stop switch (S4).
8. Open or defective platform
emergency stop switch (S4).
1. Open or defective emergency stop
switch (S4).
2. Loose or broken wire #08 from
emergency stop switch (S4) to off/
lift/drive select switch (S3).
3. Open or defective off/lift/drive select
switch (S3).
1. Open or defective key select switch
(S3).
2. Loose or broken wire #10 from key
select switch (S3) to start switch
(S15).
3. Defective start switch (S15).
4. Loose or broken wire #32 from start
switch (S15) to relay (32CR).
5. Defective relay (32CR).
6. Loose or broken jumper wire #41 on
relay (32CR).
7. Loose or broken wire #02 from relay
(32CR) to base terminal block.
8. Loose or broken wire #05 from base
terminal block to relay (32CR).
9. Loose or broken wire #32A from
relay (32CR) to base terminal block.
10. Loose or broken wire #32A from
base terminal block to starter
contactor (32ACR).
11. Defective starter contactor (32ACR).
12. Loose or broken wire #00 from
starter contactor (32ACR) to base.
13. Loose or broken wire #103 from
main power disconnect (S1) to starter
contactor (32ACR).
14. Loose or broken wire #104 from
starter contactor (32ACR) to starter
motor.
15. Defective starter motor.
1. Loose or broken wire #05 from base
terminal block to engine off/on switch
(S30).
5. Set (S10) to platform position.
6. Check switch. Replace if defective.
7. Check continuity. Replace if
defective.
8. Check switch. Replace if defective.
1. Check switch. Replace if defective.
2. Check continuity. Replace if
defective.
3. Check switch. Replace if defective.
1. Check switch. Replace if defective.
2. Check continuity. Replace if
defective.
3. Check switch. 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 continuity. Replace if
defective.
10. Check continuity. Replace if
defective.
11. Check contactor. Replace if
defective.
12. Check continuity. Replace if
defective.
13. Check continuity. Replace if
defective.
14. Check continuity. Replace if
defective.
15. Check motor. Repair or replace if
defective.
1. Check continuity. Replace if
defective.
TROUBLESHOOTING INFORMATION
ALL FUNCTIONS
INOPERATIVE FROM
PLATFORM
ENGINE WILL NOT
CRANK FROM
PLATFORM
TROUBLE
PROBABLE CAUSE
REMEDY
NO POWER TO
PLATFORM
(Machines With Base
Control Box Option)
(Continued)
ENGINE WILL NOT
CRANK FROM ENGINE
CONTROLS
Summary of Contents for SJ-7027
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