Tadano TT-800XXL1, Service Manual

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7
W536-0760E
G-2 G-2
Boom (Five-Section Boom)
2. Disassembly
The procedure to remove the 2nd boom section and
further sections as an assembly is described below.
2. 1 Removing the 2nd boom section
1 . Retract the boom fully and set the crane level.
2. Remove the hook block and the rope socket.
Wind up the wire rope on the drum.
3. Swing the boom to place where there is enough
clearance, then lower the boom to 0° and stop the
engine.
4. Remove the wiring connector, loosen the wiring
clip and secure the cable end using a tape at the
cable guide (a) located closest to the cord reel.
IW536-0620E03
Cable Cable guide (a) Wiring clip
5. Remove the high-pressure hoses (2 pieces) and
the hose leading to the hose reel from the
telescoping cylinder.
[NOTICE]
To prevent the hose reel from spinning, attach a
wire to the hose to the pipe sleeve of the hose and
secure the wire to the swing frame.
IW536-0620E04
Hose reel
High-pressure hose
Telescoping cylinder
6. Pull out the connecting pin that connects the base
boom section and the No. 1 telescoping cylinder
by removing the retaining ring. Then loosen the
nut and remove the bolt.
IW536-0620E05
Connecting pin
Bolt
Nut
7. After removing the retainer on the top of the base
boom section head and removing the slide plate,
pull out the 2nd boom section by approx.
1 m.
8. While lifting up the 2nd boom section slightly,
remove the retainer from the bottom of the base
boom section head.
9. Lift up and pull out the 2nd boom section using a
crane, and place it on a level platform.