Opening And Abrasion Of The Hook; Deformation, Flaw, Corrosion - KITO ER2 Serie Manuel Du Propriétaire

Chapter 2 Inspection
Frequent Inspection (continued)
■ Top Hook, Bottom Hook
Item
Opening
and
Abrasion of
the Hook
2
Deformation,
Flaw,
Corrosion
70
Check method
• Check visually and measure
with vernier caliper.
Embossed mark
a
c
b
• Check visually.
Criteria
CAUTION
• Compare the dimensions of a, b
and c with those at purchasing.
Check that they are within the
criteria.
Mandatory
The use of the Hooks with
these dimensions exceeding
the criteria may result in bodily
injury or property damage.
Measured value (mm) Limit value
Dimension a Not to exceed the dimension at purchasing
Dimension b
Abrasion not to exceed 5%
Dimension c
• Following tables shows the nominal standard
values. Please be aware that these values
include tolerance because of forging.
ER2 Hook Service Limit (P92) or Criteria
Code Capacity
ER2-001H/IH/HD 125kg
ER2-003S/IS/SD/H/IH 250kg
ER2-005L/IL/LD
500kg
ER2-005S/IS/SD
ER2-010L/IL/LD
1t
ER2-010S/IS/SD
ER2-015S/IS/SD 1.5t
ER2-020C/IC/CD
ER2-020L/IL/LD 2t
ER2-020S/IS/SD
ER2-025S/IS/SD 2.5t
ER2-030S/IS/SD 3t
ER2-050S/IS/SD 5t
• No deformation such as bend or twist
• No deep cut
• No loosened bolt or not, or their fall off
• No considerable corrosion
• No attachment of foreign matter such as
sputter
When failed
Replace the Hook.
Dimension b Dimension c
Dimension
a (mm)
(mm)
Limit
Standard Standard Standard
value
45.0 17.5 16.6 23.5
50.0 22.5 21.4 31.0
60.0 26.5 25.2 36.5
69.0 31.5 29.9 43.5
73.0 34.5 32.8 47.5
83.0 42.5 40.4 56.0
Replace the Hook.
(mm)
Limit
value
22.3
29.5
34.7
41.3
45.1
53.2