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BOOM OPERATES ABNORMALLY, SLOWLY, WILL NOT TELESCOPE IN OR OUT, OR RAISE OR LOWER-continued |
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 TM
9-2320-279-20-1
Troubleshooting Malfunctions (Cent)
Troubleshooting (Cent)
2-9.
Malfunction
Test or Inspection
Corrective Action
MATERIAL HANDLING CRANE
M984E 1 )
BOOM OPERATES ABNORMALLY, SLOWLY, WILL NOT TELESCOPE IN OR OUT, OR RAISE
OR LOWER
BOOM SECTIONS
977 SHOWN
SIMILAR
Step 3. If boom operates abnormally, check for dry boom sections.
TELESCOPE boom OUT. Check lubrication in boom sections. Lubricate dry
sections (LO 9-2320-279-12).
M977, M985 SHOWN
SIMILAR
HIGH
PRESSURE
TA18S051
Step 4. Check for clogged high pressure hydraulic filter
19-17).
19-17).
Service high pressure hydraulic filter
Step 5. Check for faulty hydraulic system operation.
Refer to HYDRAULIC SYSTEM Troubleshooting.
2-199
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