TM 5-3740-218-13&P
LV BOOM ASSEMBLY REPLACEMENT/REPAIR (CONT)
C.
ASSEMBLY/INSTALLATION
(1)
Remove any SD system or ULV system components from bucket assembly. Cap hydraulic lines.
(2)
Lay out boom weldments, boom extension, andstruts in numerical order according to numbers marked on
ends.
NOTE
Both LV boom assemblies are assembled/installed the same way. The following
procedure is for the left-side LV boom assembly.
Booms and struts are number and color-coded; right is green and left is red. The
"connect points" referred to in this procedure are the places on the boom
assembly where struts and booms with like colors and numbers are to be joined.
Strut tabs must point up. Nozzles must face rear of bucket. End of strut should
be at a 15-degree angle to centerline of boom.
(3)
Connect Points 1 and 2: Install two struts (1 and 2) at top of right bucket leg weldments and secure to strut
anchors (3 and 4) using two quick-release pins (5 and 6).
(4)
Install boom weldment (7) on center boom weldment (8) of pump and crosstube assembly and secure by
closing Kamlock ears over end of boom weldment. Do not install clamp (9) at this time.
(5)
Connect Point 3: Using upward pressure, connect other ends of struts (1 and 2) to boom wldment (7) at
e
Connect Point 3 using quick-release pin (10).
(6)
Connect Point 4: Attach struts (11 and 12) to boom weldment (7) at Connect Point 4 using quick-release pin
(13).
(7)
Connect Points 5 and 6: Attach opposite ends of struts (11 and 12) to eyebolts on cross strut (14) at Connect
Points 5 and 6 using quick-release pins (15 and 16). Do not tighten eyebolts at this time.
(8)
Connect Point 10: Install outboard boom weldment (17) on boom weldment (7). Secure by closing Kamlock
ears over connection. Do not install clamp (18) at this time.
(9)
Connect Point 7: Attach struts (19 and 20) to outboard boom weldment (17) at Connect Point 7 using quick-
release pin (21).
(10)
Connect Points 8 and 9: While supporting end of weldment (17), connect cross strut (14) to struts (1, 2, 19,
and 20) at Connect Points 8 and 9 using quick-release pins (22 and 23).
(11)
Connect Point 11: Install boom extension (24) on end of outboard boom weldment (17) and secure by
closing Kamlock ears over connection.
(12)
Install clamps (9, 18, and 25) over Kamlock ears and through rings on booms and tighten.
(13)
If removed, install spray nozzles (26) on booms.
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