Zoomlion ZCC1100, Operator'S Manual, Page: 226 / 291

Operator’s Manual for Crawler Crane
Assembly
and
Dismantli
ng
5-20
5.2.3.3 Operation of crawler carrier extending & retracting mechanism
The crawler carriers of this crane can be extended and retracted completely.
When the crane is working, the crawler carriers are usually extended completely. See the figure
5-21. While during transportation, the crawler carriers are retracted completely. See the figure
5-22.
The operation of extending crawler carriers is shown as follows.
Figure 5-21 Crawler carrier extended completely
a) Lower the adjusting blocks of eight folding brackets via socket wrench to proper positions
where the adjusting blocks are in the same level with the upper plane of folding brackets.
b) Remove the bracket fixing pins, and swivel four pairs of folding brackets to proper
positions so that crawler carrier can be extended completely. Put a retaining plate on each
pair of folding bracket to limit swiveling of folding bracket.
c) Pull out the positioning pins of horizontal anchoring rods so that the anchoring rods can
move with the extending of crawler carriers.
d) Extend left horizontal cylinder to push left crawler carrier out. After left crawler carrier is
extended to the required position, insert the positioning pin of left horizontal anchoring
rods. Extend right crawler carrier to required position, and then fix it well.
e) After the right and left crawler carriers are extended completely, and the horizontal
anchoring rods have been assembled. Tighten the adjusting blocks of eight folding
brackets via socket wrench to ensure that the upper plane and bottom section of folding
brackets are in contact with crawler carriers tightly.
f) Put wedge blocks between the upper plane of undercarriage central section and crawler
carrier, and then fasten it well by the bolts.
For reference only.
Operators manual should be consulted and adhered to.