TM 5-3805-262-20
3-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. BUCKET TILT CYLINDER ASSEMBLIES OPERAT ION SLUGGISH OR POOR (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 BUCKET control lever in both DUMP and CROWD 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 i s
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 assembly and bucket tilt 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 . I f
tightening does not stop leakage, replace part(s) (page 11-43).
b. If hydraulic oil leakage is not seen, go to step 3 below.
Step 3.
Inspect bucket tilt cylinder assemblies for oil leakage (page 11-2).
a. If bucket tilt cylinder assemblies do not check okay, replace
(page 11-4).
b. If bucket tilt cylinder assemblies are okay, go to step 4 below.
Step 4.
Start engine and operate at idle speed.
Place LIFT ARM control lever in RAISE position until bucket can be
rolled all the way forward, then place lever in NEUT. position.
Place BUCKET control lever in DUMP position until bucket stops
moving then place in NEUT. position.
Place LIFT ARM control lever in LOWER position until bucket is
resting on ground, then place in NEUT. position.
Shut off engine and operate control levers several times to relieve
hydraulic system pressure.
3-180
