TM 5-3805-262-20
3-25. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. BUCKET CLAMSHELL CYLINDER ASSEMBLIES OPERATING
CYLINDERS OPERATE PROPERLY) (Cont).
S t e p 4 . ( C o n t ).
Disconnect hose connected to rod
end of each clamshell cylinder
assembly from tube.
Install a cap on each tube.
Start engine and operate at full
t h r o t t l e .
Hold CLAM control lever in CLOSE
p o s i t i o n a n d t e l l a s s i s t a n t to
check for hydraulic oil leakage
at each hose disconnected above.
a . I f t h e r e i s c o n s t a n t l e a k a ge
from a hose, the cylinder
packing is damaged. Shut off
engine and replace clamshell
cylinder assembly connected
to hose which was constantly
leaking (page 11-72).
b. If there wasnt constant
leakage from a hose, notify
next higher maintenance
level (additional checks
must be performed).
SLUGGISHLY OR POORLY (ALL OTHER
8. ALL CYLINDER ASSEMBLIES OPERATING SLUGGISHLY OR POORLY.
Step 1.
Check hydraulic reservoir sight
gage in front of loader.
Oil level should be at center of
sight gage.
a . I f o i l l e v e l i s n o t at
approximate center of sight
gage, add hydraulic oil (page
11-78).
b . I f o i l l e v e l i s o k a y , g o to
step 2 below.
3-193