KITO ER2 Series User Manual

69
Item Check method Criteria When failed
Elongation of
Pitch
• Measure the elongation
of pitch with point caliper.
(Measure the sum of pitches
of 5 links)
Check the engaging point of the Load
Sheave and the Idle Sheave especially
carefully.
NOTE
• The limit value of the following “Sum of pitches
ofvelinks”mustnotbeexceeded.
Replace the Load
Chain.
Abrasion of
wire diameter
• Measure the wire diameter
(d) with point caliper.
d
• 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 “Periodic Inspection”, “Load
Sheave” (P81).)
NOTE
Replace the Load
Chain.
Sum of pitches of 5 links
■
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.
Load Chain Pitch and Wire Diameter for Each Capacity
Code Capacity
Load Chain
diameter (mm)
Sum of 5 Links (mm) Load Chain diameter (mm)
Do not exceed the limit Do not fall under the limit
Standard Limit Limit
ER2-001H/IH 125kg
4.3×1 60.5 62.5 3.9
ER2-003S/IS
250kg
ER2-003H/IH
6.0×1 84 86.5 5.4ER2-005L/IL
500kg
ER2-005S/IS
ER2-010L/IL
1t
7.7×1 108 111.2 6.9
ER2-010S/IS
ER2-016S/IS 1.6t
10.2×1 143 147. 2 9.2ER2-020L/IL
2t
ER2-020S/IS
ER2-025S/IS 2.5t
11.2×1 157 161.7 10.1
ER2-032S/IS 3.2t 10.2×2 143 147.2 9.2
ER2-050S/IS 5t 11.2×2 157 161.7 10.1
Frequent Inspection
2
Electric Chain Hoist (ER2) Frequent Inspection
(to be continued)

KITO ER2 Series Specifications

General

Control Voltage	24V
Duty Cycle	40% ED
Protection Class	IP55
Temperature Range	-20°C to +40°C
Type	Electric Chain Hoist
Frequency	50/60 Hz
Motor Insulation	Class F
Brake Type	Electromagnetic
Load Chain Grade	Grade 80
Ambient Temperature	-20°C to +40°C
Power Supply	3-phase
Lift Height	3 to 30 meters
Chain Falls	1 or 2
Voltage	200-240V, 380-480V