16-12. BOOM ASSEMBLY - REPLACE (Contd)
Wipe the area clean around all hydraulic
connections to be opened during removal
and disassembly. Cap oil lines and plug
holes after removing lines. Contamination
of the hydraulic system could result in
If more than one hydraulic line is to be
removed, identify lines to assure proper
installation. Use container to catch any
hydraulic oil that may drain from system.
Weight of boom assembly including boom
extend cylinder is approximately 4100 lbs.
DISCONNECT BOOM ELECTRICAL CABLE
(1)FROM SOCKET (2) ON VEHICLE FRAME.
DISCONNECT TWO HOSES (3) FROM BOOM
EXTEND CYLINDER (4).
Remove four bolts (5), four lockwashers (6), and
cover (7), from rear of boom assembly (8).
Discard lockwashers (6).
Tag and disconnect two hoses from boom extend
cylinder (4).Close hoses (3) securely with metal
Remove locknuts (a), capscrews (b), and clamp
halves (c) securing hydraulic hoses (3) to bottom
of boom assembly.
DISCONECT THREE HOSES (9) FROM LINES (10)
AT UNDERSIDE OF BOOM ASSEMBLY (8).