a. Removal.
(5) Reassemble by reversing procedure of
steps (4) through (1) above.
(1) Remove four locknuts, nuts, and two U
Figure 4-19.
c. Cleaning, Inspection and Repair.
(1) Clean all parts with an approved cleaning
solvent and dry thoroughly.
(2) Visually inspect all parts for cracks,
breaks, bends or excessive wear.
(3) Repair by welding cracks or breaks,
straightening bends, or replacing excessively worn
parts.
d. Installation. Install bucket, bail, and teeth by
reversing procedure in steps (3) through (1) in a above.
4-29. Backhoe Bucket Stick
a. Removal.
(1) Lower boom to rest on cribbing, near foot,
then unreeve hoist and digging cables (fig.
(2) Attach lifting device to bucket stick,
remove keeper rod (fig. 4-28) and boom point pin, then
remove bucket stick from boom.
b. Disassembly and Reassembly.
(1) Remove bucket (para 4-28).
(2) Remove cotterpin, nut, washers, and bolt from pitch
brace (fig. 4-28) then remove brace from stick.
Note.
At reassembly, depth of bucket slice
is adjusted by position of bolt in
brace. For deep excavation put bolt
Figure 4-29. Backhoe safety backstop, removal,
through
lower
hole.
Where
disassembly, reassembly, and installation.
maximum
dumping
height
is
required put bolt in upper hole. For
Backhoe safety backstop, removal, disassembly,
normal operation the bolt should be
reassembly, and installation bolts (fig.
4-9), and
in center hole.
disconnect backstop from revolving frame gantry pin.
(3) Remove nut, lockwasher and bolt then
(2) Remove two cotter pins from pin, remove
remove sheave frame from bucket stick.
pin, then remove backstop from auxiliary gantry.
(4) Remove cotter pin, nut, lockwasher.
b. Disassembly and Reassembly.
spacer, sheave, and bolt from frame.
(1) Separate the two pipes by pulling smaller
(5) Remove cotter pin, nut, wedge socket,
out of the larger (fig. 4-29).
and pin from frame.
(2) Remove washer and spring from the
(6) Reassemble by reversing procedures in
larger pipe.
steps (5) through (1) above.
(3) Reassemble by reversing procedure in
c. Cleaning, inspection and Repair.
steps (2) and (1) above.
(1) Clean all parts in an approved cleaning
c. Cleaning, Inspection and Repair.
solvent and dry thoroughly.
(1) Clean all parts with an approved c ing
(2) Visually inspect parts for cracks, breaks,
solvent and dry thoroughly..
bends, or excessive wear.
(2) Visually inspect pipes for bend or other
(3) Repair by welding cracks or breaks, .
defect, and spring for compression strength.
Lightening bends, or replacing worn or defective parts.
(3) Repair by straightening bends, or
d. Installation. Install bucket stick by reversing
replacing defective parts.
procedure used in removal (a above).
d. Installation. Install backstop by reversing
procedure in a above.
4-30. Backhoe Safety Backstop
4-28
