John Deere Radial Piston Pumps (3000 Series) — John Deere Radial Piston Pumps CTM7 Service Manual PDF Download (EN)

CTM-7 (5-89) 2R3; 005 03 110589 R70;070300 1165 080288 Excessive Pump Pressure Improper compensator valve adjustment Pump and Oil Line Vibration Crankcase outlet valve spring too strong Broken discharge valve or spring Leaking inlet valve Broken inlet valve Pump Noise or Squeal Low deadhead pressure Pressure compensator valve binding Crankcase outlet valve spring too strong Leaking inlet valve Air leak at inlet connections (inspect) Insufficient inlet oil (cavitation) Function Chatter Insufficient inlet oil (cavitation) Sticking pump pistons Broken discharge valve or spring Broken inlet valve Charge system leakage Charge pump suction air leak Pump Shaft Seal Failure Broken discharge valve Overpressurized seal drain line toDD Series (PRJ-Hydraulic Pump Litho in U.S.A.

05-3 Low Pump Output Low deadhead pressure Compensator valve, seat, or spring failure Worn or scored pistons and bores Broken discharge valve or spring Leaking inlet valve Restricted inlet Insufficient inlet oil Hydraulic Functions Slow Low deadhead pressure Plugged hydraulic filter or return filter Compensator valve, seat, or spring failure Crankcase outlet valve stuck closed DIAGNOSING MALFUNCTIONS No Pump Output Broken pump drive shaft Pressure compensator valve malfunction Improper compensator valve adjustment Excessive charge circuit leakage Crankcase outlet valve failure No oil to pump inlet Slow Pump Response Weak crankcase outlet valve spring Failure of charge pump or charge leak Plugged return oil filter AllTractorManuals.com