TM 5-3805-261-20HYDRAULIC SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONd.BLADE LIFT FAILS TO OPERATE.Step 1.Check the blade lift hydraulic hoses for leaks and loose fittings.If a blade lift fitting is loose--tighten. If a hose is damaged or defective--replace. Refer to paragraph 15-26.Step 2.Check fluid level in hydraulic tank.Refer to Operator’s Manual, TM 5-3805-261-10 for proper fluid, level and cautions.Step 3.Measure blade lift time. Using a stop watch, measure the amount of time for the blade to be listedfrom the ground to the stopping point.The time for the blade to be lifted is between 0.5 and 9.5 seconds.If the time is not within this range--contact Direct Support.If the time is within range, a flow meter tee test should be performed. Contact Direct Support.e.CENTER SHIFT FAILS TO OPERATE.Check the center shift hydraulic hoses for leaks and loose fittings.If a center shift fitting is loose--tighten. If a hose is damaged or defective--replace. Refer to paragraph 15-30.15-5
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