c. Engage hooks on lower ends of chains in four
4. DISCONNECT QUICK COUPLER AT BASE END
eyes provided on corners of carrier swivel
OF LIFT CYLINDER.
6. PURGE AIR TANKS, DISCONNECT AIR AND
HYDRAULIC QUICK DISCONNECTS.
Failure to break this line at
disconnect may result in
a. Purge air reservoirs (Refer to TM 5-3810-306-
superstructure is lifted.
b. Uncouple five air and nineteen hydraulic quick
a. Disconnect quick coupler provided in lift retract
disconnect fittings and three electrical conduit
circuit located between turntable side plates at
plugs on underside of swivel.
base end of lift cylinders. Breaking this line
effectively blocks any possible leakage past lift
c. Remove four 3/4 inch bolts, nuts and washers
control valve spool which would allow boom to
attaching the swivel support channel to
raise during superstructure demount.
supporting lugs. Save bolts, nuts and washers
for use in remounting superstructure.
b. Install dust caps to cover quick coupler ends to
avoid entrance of dirt.
d. Install dust covers on all quick disconnects.
5. SUPPORT SWIVEL WITH SUSPENSION CHAINS.
7. REMOVE ROTATION LINKS FROM SWIVEL.
a. From underneath crane, centerline of rotation,
a. Unpin and remove two rotation links between
find four (4) swivel assembly suspension chains
turntable base plate and swivel barrel.
in their stowed positions wrapped around swivel
b. Detach chains from their stowed positions. The
Code mark these links so that
upper ends of these chains are secured to
they can be replaced in same
underside of superstructure turntable base plate.
location when remounting
superstructure. Failure to do
so will result in rotary
assembly. These links rotate
swivel barrel with turntable
and are not designed to
suspended swivel assembly.
b. Stow links and attaching hardware in tool box for
use in remounting the superstructure.