DIGGER DERRICK
1-72
463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
OPERATION GUIDELINES
JIB INSTALLATION AND REMOVAL
The jib assembly, which consists of the jib mounting bracket and the jib, may be installed or removed as a
complete assembly or as separate parts.
To install the jib in the boom tip, use the following procedures:
1. To install separated:
a. Attach the jib mounting bracket (1) to boom tip by aligning mounting holes in jib mounting bracket with
mounting holes in boom tip. Secure in place with pin(s) (5).
b. Remove pin(s) (3) from jib mounting bracket (1) and slide jib (4) into jib mounting bracket. Secure in
place with pin(s) (3).
2. To install as complete assembly:
a. Attach the jib (4) and jib mounting bracket (1) to boom tip by aligning holes in jib mounting bracket
with mounting holes in boom tip.
b. Secure in place with pin(s) (5).
c. After installation, check the roller(s), sheaves, and angle indicator for ease of operation. Lubricate if
necessary.
d. Route winch line to the jib sheave as depicted on the diagrams. Starting at the winch, follow A to B.
When installing the jib assembly check pins, rollers, sheaves, jib pivot points, jib extension points, and jib
rest, check for cracks, unusual wear, and missing or damaged hardware. If any discrepancies are found,
repair or replace before continuing.
To remove the jib in the boom tip, use the following procedures:
1. To remove separated:
a. Remove winch line from jib boom and jib mounting bracket (1).
b. Remove pin(s) (3).
c. Slide jib boom (4) clear of jib mounting bracket (1).
d. Store jib boom (4) in a suitable storage area.
e. Support the jib mounting bracket (1) and remove pins (5).
f. Remove jib mounting bracket (1) from boom tip.
g. Store the pins (5) on the jib mounting bracket (1).
h. Store jib mounting bracket (1) in a suitable storage area.
2. To remove as complete assembly:
a. Remove winch line from jib boom (4) and jib mounting bracket (1).
b. Support the complete assembly and remove pins (5).
c. Remove from boom tip.
d. Store pins (5) on the jib mounting bracket (1).
e. Store complete assembly in suitable storage area.
When using jibs on this Digger Derrick, use the chart that is applicable to the jib
operation. Do not use the Digger Derrick load capacity chart or handle poles with
the jib.
Rope damage or excessive wear may result from improper routing of winch line.
The diagrams illustrate the proper procedure for rope routing.
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