TM 5-3805-262-203-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION6. LIFT CYLINDER ASSEMBLIES OPERATING SLUGGISHLY OR POORLY (ALL OTHER CYLINDERSOPERATING OKAY ) (Cont).S t e p 4 . ( C o n t ).Place a support below loaderframe cross member to holdloader frame in position.Operate control levers severaltimes to relieve hydraulicsystem pressure.Hydraulic system pressure is over20 0 0 p s i a n d h y d r a u l i c r e s e r v o iri s p r e s s u r i z e d w i t h c o m p r e s s e da i r . B e f o r e l o o s e n i n g o rd i s c o n n e c t i n g a n y h y d r a u l i ch o s e s , l i n e s , o r f i t t i n g s , l o o s e nh y d r a u l i c r e s e r v o i r f i l l c a p , a n do p e r a t e a l l h y d r a u l i c c o n t r o ll e v e r s t o r e l i e v e h y d r a u l i csystem pressure. Failure to do soc o u l d c a u s e s e r i o u s i n j u r y o rdeath .I f y o u a r e i n j u r e d o b t a inmedical assistance immediately.Disconnect hose connected torod end of each lift cylinderassembly from tube that comesthrough side of loader frontc h a s s i s.Install a cap on each tube.S t a r t e n g i n e - a n d o p e r a t e a t f u l l t h r o t t l e.Hold LIFT ARM control lever in RAISE position and tell assistant tocheck for hydraulic oil leakage at each hose disconnected above.a. If there is constant leakage from a hose, the cylinder packingis damaged. Shut off engine and replace lift cylinder assemblyconnected to hose which was constantly leaking (page 11-65).b. If there wasn’t constant leakage from a hose, notify next highermaintenance level to replace control valve assembly.3-190
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