Y- 1
Y- 1
Service Data 5.3 Jib bending and deformation
(1 mm = 3.93701 × 10-2 in)
Item
Standard value (mm)
Check for bending of the whole jib.
a
Remarks
9.5
a
1.5 + L /1000
No significant bending in vertical and L = 8000 horizontal direction shall be found. (jib full retraction) L
a
IWY01-001007
Check for dents and other localized indentation or d 0.8 bending. (for indentations with L
15 mm)
L
d
IWY01-0010E08
5.4 Wire rope
(1 mm = 3.93701 × 10-2 in) Item
For main winch For auxiliary winch
Wire rope diameter Number of broken wire Wire rope diameter Number of broken wire
For 3rd boom extension
Wire rope diameter
For 3rd boom retraction and top boom extension
Wire rope diameter
For top boom retraction
Wire rope diameter
Criteria for wire rope replacement
Number of broken wire
Standard value (mm) 16 (Nominal diameter) – 16 (Nominal diameter) – 18 (Nominal diameter) – 16 (Nominal diameter)
Number of broken wire
Number of broken wire
– 10 (Nominal diameter) –
Limit value (mm) 14.9 13 14.9 17 16.7 15 14.9 15 13
WS Fi 9.3 13
Remarks Construction 7×7+6×Fi (29) O/O Construction 7×7+6×WS (36) O/O Construction 7×7+6×WS (31) O/O Construction 7×7+6×WS (31) O/O or 7×7+6×P･Fi (29) O/O Construction 7×7+6×Fi (29) O/O
1. Replace the wire rope if it is deformed or corroded. 2. Replace the wire rope if it is kinked. 3. Replace the wire rope if 10% or more of the wires (except for filler wires) in a lay are broken. 4. Replace the wire rope if the diameter is reduced by more than 7% of the nominal diameter. 5. Replace the wire rope if it has been degraded by heat.
5
WY01-2470E
