-6-
Item
Method
Discard criteria
Remedy
2. Load chain
2.1 Wear
Measure
Measure
Replace
2.2 Flaws,
deformations
Check visually
Should be free from twists or flaws.
Replace
2.3 Rust
Check visually
Should be free from obvious rust.
Remove rust, oil
the chain
3. Bottom
hook pin
3.1 Twist,
deformations
Check visually,
measure
Replace the hook pin if there is obvious
deformation. The screw thread of the hook pin
should be free from flaws and deformation.
Measure
Replace
3.2 Rust
Check visually
Should be free from obvious rust.
Remove rust, oil
the pin
4. Top / bottom
hook pin hole
4.1 Deformations
Measure
Replace hook
assembly
Capacity (t)
L (mm)
D (mm)
Standard
Discard
Standard
Discard
0.75
90.0
≤92.5
6.0
≤5.4
1.5
120.0
≤123.3
8.0
≤7.2
3, 6, 9
150.0
≤154.0
10.0
≤9.0
Capacity (t)
D (mm)
Standard
Discard
0.75
7.5
≤7.1
1.5
10.0
≤9.5
3
14.5
≤13.8
6
14.5
≤13.8
9
14.5
≤13.8
Capacity (t)
Diameter (mm)
Bottom hook pin hole
Top hook pin hole
0.75
7.5
≤8.0
12.5
≤13.1
1.5
10.5
≤11.0
14.5
≤15.2
3
15.0
≤15.7
18.0
≤18.9
6
15.0
≤15.7
18.0
≤18.9
9
15.0
≤15.7
18.0
≤18.9
