Recommend rebuild interval; oil to grease lube conversion
Service Bulletin
12/26/1991
Inspection and Replacement of #5599 strut
03/03/1993
Inspection, adjustment and replacement of chair damper stator attaching fasteners (roll pins or bolts)
03/02/1993
Replacement of roll pin #6564 with groove pin #6564A
04/16/1993
Inspection of flanges and welds
03/07/1996
Software Security
12/18/2000
Optional pressure relief valve, ref. drawing A08519
04/08/2002
Improved solenoid valve; faster brake retraction and reset
02/14/2003
Carrier Hanger Head Lubrication (Manual Change)
12/07/2010
