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SWING OPERATION ERRATIC IN EITHER DIRECTION
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TM-5-4210-233-14P-1 Twin Agent 4x4 Firefighting Truck Model No. CM-KFT-B Manual
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SLOW OR ERRATIC OPERATION OF OUTRIGGER EXTENSION CYLINDERS
TM 5-4210-233-14&P-1 Table 4-2 Unit Troubleshooting - Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION HYDRAULIC SYSTEM - Continued 14 ERRATIC OPERATION IN ALL HYDRAULIC CIRCUITS Step 1   heck for low hydraulic oil level. Fill to proper level (see para 3-1. ). Step 2. Check engine RPM. Increase engine RPM to 1250 for smooth operation. Step 3. Check for loose hose and/or fitting allowing air to enter system. Re-tighten or replace fittings or hose (see para 4-9). Step 4. Check operation of pressure reducing (de-stroking) valve. Refer to Direct Support maintenance to test or replace valve. Step 5. Check operation of hydraulic pump. Refer to Direct Support maintenance to repair pump. 15 OUTRIGGER JACK CYLINDER EXTENDS WHILE MACHINE IS ROADING Step 1. Air in system. Purge system by extending and retracting, raising and lowering the outrigger to its full travel limits several times. Step 2. Check for defective jack cylinder check valve. Refer to Direct Support maintenance for troubleshooting. Step 3. Check for leaking jack cylinder piston seals or internal damage. Refer to Direct Support maintenance, to replace seals. 4-65

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