Load Chain; Elongation Of Pitch; Abrasion Of Wire Diameter - KITO ER2 Serie Manuel Du Propriétaire

■ Electric Chain Hoist (ER2) Frequent Inspection

■ Load Chain

● Check the Load Chain after removing the stain on the chain.
● Use the needle head caliper (point caliper) to measure the sum of pitches and wire diameter.
● Apply oil on the Load Chain after inspection.
● Application of lubricant influences on the life of the Load Chain considerably. Use the KITO genuine lubricant or
equivalent (industrial lithium grease: consistency No.0)
● Release all loads from the Load Chain. Apply the lubricant to the linking portion of the Load Chain that engages the
Load Sheave and the Idle Sheave and the linking portion of the Load Chain.
● After application of the lubricant lift/lower the electric chain hoist without load to spread the lubricant on the Load Chain.
Item Check method
• Measure the elongation
Elongation
of pitch with point caliper.
of Pitch
(Measure the sum of pitches
of 5 links)
Sum of pitches of 5 links
• Measure the wire diameter
Abrasion
(d) with point caliper.
of wire
diameter
Load Chain Pitch and Wire Diameter for Each Capacity
Code Capacity
ER2-001H/IH 125kg
ER2-003S/IS/SD
250kg
ER2-003H/IH
ER2-005L/IL/LD
500kg
ER2-005S/IS/SD
ER2-010L/IL/LD
ER2-010S/IS/SD
ER2-015S/IS/SD
ER2-020C/IC/CD
ER2-020L/IL/LD
ER2-020S/IS/SD
ER2-025S/IS/SD
ER2-030S/IS/SD
ER2-050S/IS/SD
Check the engaging point of the Load Sheave
and the Idle Sheave especially carefully.
• The limit value of the following "Sum of pitches
of five links" must not be exceeded.
• The limit value of the following "Wire diameter
of the Load Chain" must not be exceeded.
When the abrasion of the Load Chain is
observed, be sure to check the abrasion of the
Load Sheave and the Idle Sheave also. (Refer to
d
"Periodic Inspection", "Load Sheave" (P81).)
Load Chain
diameter (mm)
4.3×1
6.0×1
1t 7.7×1
1.5t 10.2×1
7.7×2
2t
10.2×1
2.5t 11.2×1
3t 10.2×2
5t 11.2×2
Criteria
NOTE
NOTE
Sum of 5 Links (mm)
Do not exceed the limit
Standard Limit
60.5 62.5
84 86.5
108 111.2
143 147.2
108 111.2
143 147.2
157 161.7
143 147.2
157 161.7
When failed
Replace the Load
Chain.
Replace the Load
Chain.
Load Chain diameter (mm)
Do not fall under the limit
Limit
3.9
5.4
6.9
9.2
6.9
9.2
10.1
9.2
10.1
(to be continued)
2
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