Tadano TR-800XXL4, Service Manual

Page: 149 / 402

17 W536-0761E
G - 2 G - 2
Boom (Five-Section Boom)
3. Check
3.1 Boom
Check the boom for twist, deformation, wrap, and
cracks.
3.2 Slide plate
Check the slide plates for cracks and wear, and
replace when these conditions are excessive.
3.3 Sheave
Check the sheaves for damage, deformation and
wear, and replace them when these conditions are
excessive.
3.4 Boom telescoping wire rope
Wire rope in the condition described below must not
be used.
• Deformation or corrosion
• Kinking
• 10% or more broken wire (filler wires excluded) in
one lay of the wire rope
• diameter reduction exceeding 7% of the nominal
diameter.
• Evidence of any heat damage from any cause.
4. Reassembly
4.1 Greasing
• When installing unplated pins, apply grease
beforehand.
• Apply TNR-2 Grease sufficienty to the sliding
surfaces of the slide plates, the booms and
telescoping cylinders.
4.2 Install anti-buckling bolts for telescoping
cylinder
IW536-0680E12
E
D
S
C
A
B
Boom side
Cylinder side
1. Connect the boom and telescoping cylinder using
the pins A and B.
2. Adjust the bolt C locked with nuts D and E so that
it can be turned by hand and the clearance (S) is
0.5mm (0.02in) or less.(Apply thread locking
agent.)
[NITICE]
Refer to normal insert directions of bolt•C shown on
[2.Disassembly]
Base and 2nd boom section
3rd boom section