September 2016
Part No. 1272856
GTH-1256
3-3
Section 3 • Repair Procedures
BOOM COMPONENTS
How to Replace the Boom
Retract Chains
Note: Perform this procedure on a
fi
rm, level
surface with the wheels chocked.
1 Start the engine and allow the engine to idle.
2 Raise the boom to a horizontal position.
3 Fully retract the boom.
4 Turn the machine off and remove the key from
the key switch.
5 At the pivot end of the boom, remove pins "l"
and pulleys "m".
6 Remove the upper screws securing the upper
chains "f" - "g".
l
m
a
e
b
c
f
g
h
i
d
a boom tube number 1
b boom tube number 2
c boom tube number 3
d boom tube number 4
e extend
cylinder
f
retract chain tube number 1
g retract chain tube number 2
h tube number 1 retract chain tensioner
i
tube number 2 retract chain tensioner
Содержание Genie GTH-1256
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