National Crane
Published 5-27-2018 Control # 039-06
5-29
800D
SERVICE
Anti-two Block Trouble Diagnosis — Electrical
Anti-Two Blocking System
fails to shut down, hoist up
and boom extend
Check for voltage across
leads of limit switch with
weight supported
Check limit switch or actuator
arm for sticking - Repair or
replace switch
Fuse blown
Test HCA & ATB relays for
proper operation (see
Schematic)
Examine solenoid valve for
sticking spool due to corrosion,
burrs, contamination, etc.
Replace relay
Replace fuse
YES
NO
NO
YES
NORMAL
RELAY OPERATION
FAULTY
RELAY OPERATION
9386
Fo
r
Reference
Only
Содержание National Crane 800D
Страница 1: ...Operator and Service Manual National Crane 800D F o r R e f e r e n c e O n l y ...
Страница 4: ...F o r R e f e r e n c e O n l y ...
Страница 98: ...MAINTENANCE 800D 3 10 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 194: ...SPECIFICATIONS 800D 8 4 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 216: ...INSTALLATION 800D 9 22 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 232: ...CRANE INSTALLATION 800D 10 16 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 252: ...SCHEMATICS 800D 2 Published 5 27 2018 Control 039 06 F o r R e f e r e n c e O n l y ...
Страница 255: ...F o r R e f e r e n c e O n l y ...
Страница 256: ...F o r R e f e r e n c e O n l y ...