b. Using crane power, rotate superstructure 18
degrees to right or left of initial position in Step a
above, exposing pairs of unmarked bearing bolts
in elongated holes on each side of turntable
base plate. If the bolts on left side, under cab,
can be reached with available tool combination,
begin by removing these four (4) bolts (3, 4, 8
and 9 or 34, 35, 39 and 40). Continue rotating
the boom in 18-degree increments in same
direction and remove all turntable bolts, except
1, 2, 6 and 7 marked previously. If the bolts are
tight in holes, after nuts have been removed, tap
them out using a hammer.
c. Alternately, if a multiplier torque wrench
combination, air impact or hydraulic wrench is to
be used, and lacks vertical space on left side
under the cab, all bolts may be removed through
the elongated holes on right side of turntable.
2. SUPPORT SUPERSTRUCTURE WITH SUITABLE
Remove all bolts, except 1, 2, 6 and 7, in any
d. After all bolts except 1, 2, 6 and 7 have been
removed, swing boom back to initial 4-1/2
Suitable material handling
degrees to the right of boom straight over front
equipment as noted above
position. (Bolts 1, 2, 6 and 7 are again exposed
must now be employed to
through elongated holes in turntable base plate.)
If vertical height of tool combination prohibits
demount the superstructure.
removal of bolts 6 and 7 from under cab on left
side of turntable, break torque of these two bolts
a. Using a four fall sling with single apex positioned
when boom is to right of straight over rear
position. Leave bolts 6 and 7 snug until final
approximately 28 inches to rear of center of
removal in steps below.
rotation, connect each fall to a superstructure
For superstructure sling eye
locations, refer to Shipping
Data Plate or Transportability
Data drawing (E6-829-008730).
b. Hoist up to remove slack from sling falls.
c. Remove two bolts 7 and 2.
d. Center boom over front, engage swing lock,
lower boom to horizontal and turn off engine.
3. DISCONNECT NEGATIVE BATTERY CABLE AT
SHUNT. (REFER TO TM 5-3810-306-20.)