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Page Title: 18. SWING AND TELESCOPE DO NOT OPERATE OR OPERATE SLOWLY
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TM 9-2320-364-20-3 2-2772 18.  SWING AND TELESCOPE DO NOT OPERATE OR OPERATE SLOWLY. INITIAL SETUP 1. Notify DS Maintenance. START NO Outriggers operate. Hoist and boom lift operate. Four valve bank faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Operation test. If check valve in four valve bank center manifold is faulty, pump compensator control will not receive load sense pressure from four valve bank tele/swing manifold and will receive load sense pressure from four valve bank lift/hoist manifold. 2-29.  CRANE TROUBLESHOOTING (CONT). Tools and Special Tools Tool Kit, General Mechanic’s: Automotive (Item 74, Appendix G) Personnel Required Two Equipment Condition Engine Off, (TM 9-2320-364-10) Parking brake applied, (TM 9-2320-364-10) Wheels chocked, (TM 9-2320-364-10) Outriggers down with weight off vehicle suspension, (TM 9-2320-364-10) Mast fully erected, (TM 9-2320-364-10) References TM 9-2320-364-10 Does crane swing and boom telescope with the BOOM control lever held in the UP position? Four valve bank is faulty. Notify DS Maintenance. YES

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