TM 5-5420-228-24
DETAILED TROUBLESHOOTING PROCEDURE
LAUNCHER OPERATION HYDRAULICS
Symptom-1.1
(Continued)
FROM STEP 6
10
Check that hold down cylinder does release.
Second Technician (Operator's Station)
Move ball valve to "TRAVEL" position.
Shut engine off.
Cycle bridge launching control levers.
First Technician (Overhead Cylinder)
Remove pressure gage or STE/ICE from
counterbalance valve T2 and install gage plug.
Second Technician (Operator's Station)
Start engine.
Move ball valve to "LAUNCH" position.
Set engine speed at 1800 rpm.
Raise overhead cylinder control lever
momentarily.
First Technician (Top Deck)
Visually check that holddown cylinder does
release.
Does holddown cylinder release?
11
System is operational.
Install overhead cylinder armor
Perform launch and retrieve
YES
NO
procedures (TM-10).
Change 3
2-68.5