Step 2 - TM-5-3805-262-20

7. BUCKET CLAMSHELL CYLINDER ASSEMBLIES OPERATING SLUGGISHLY OR POORLY (ALL OTHER CYLINDERS OPERATE PROPERLY)

8. ALL CYLINDER ASSEMBLIES OPERATING SLUGGISHLY OR POORLY.

TM-5-3805-262-20 Loader Scoop Type DED 4x4 Articulated Frame Steer 2-1/2 Cubic Yard (J.I. Case Model MW24C) Manual
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TM 5-3805-262-20 3-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 7. BUCKET CLAMSHELL CYLINDER ASSEMBLIES OPERATING SLUGGISHLY OR POORLY (ALL OTHER CYLINDERS OPERATE PROPERLY) (Cont). Step 2. Start engine and turn loader so that it is facing straight ahead. Shut off engine and engage transport/service link (page 9-8). Start engine and operate at idle speed. Operate CLAM control lever in both OPEN and CLOSE positions. B e f o r e p e r f o r m i n g f o l l o w i n g , b e s u r e t h a t t r a n s p o r t / s e r v i c e l i n k is e n g a g e d . F a i l u r e t o d o s o c o u l d c a u s e s e r i o u s i n j u r y o r d e a t h d u e to chassis pivoting and crushing you when you are working in area between front and rear chassis. Tell assistant to check hoses, lines, and fittings between control valve and clamshell cylinder assemblies for hydraulic oil leakage. Shut off engine. a . I f h y d r a u l i c o i l l e a k a g e i s s e e n , t i g h t e n h o s e f i t t i n g s . If tightening does not stop leakage, replace part(s) (page 11-32). b. If hydraulic oil leakage is not seen, go to step 3 below. Step 3. Inspect clamshell cylinder assemblies (page 11-71). a. If clamshell cylinder assemblies do not check okay, replace (page 11-72). b. If clamshell cylinder assemblies check okay, go to step 4 below. Step 4. Start engine and operate at idle speed. Place CLAM control lever in CLOSE position until clam is completely c l o s e d. Shut off engine and operate control levers several times to relieve hydraulic system pressure. H y d r a u l i c s y s t e m p r e s s u r e i s o v e r 2 0 0 0 p s i a n d h y d r a u l i c r e s e r v o i r is pressurized with compressed air. Before loosening or disconnecting any h y d r a u l i c h o s e s , l i n e s , o r f i t t i n g s , l o o s e n h 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 d o p e r a t e a l l h y d r a u l i c c o n t r o l l e v e r s t o r e l i e v e h y d r a u l i c system pressure. Failure to do so could cause serious injury or death . If you are injured obtain medical assistance immediately. 3-192

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