Harrington Hoists and Cranes (N)ER Load Limiter - ((N)ER2) - Manual (Page 21)

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4.0 Adjustment
4.1 General:
The general sequence for adjusting is to determine the Static Set Load (SSL), then use the SSL to adjust the Load
Limiter (LL).
4.2 Determine Static Set Load
4.2.1 General
The general formula for determining the SSL is
SSL = RC X SP X f
Where
RC is Rated Capacity of either LL or hoist. (see sections 4.2.2 or 4.2.3)
SP is the percentage of the hoist’s rated capacity at which the LL is to actuate (Factory set at
1.15%)
f is the Dynamic Load Factor to account for small load increases due to acceleration while
lifting.
4.2.2 Prior to Load Limiter installation:
If the LL is to be adjusted prior to installation on the hoist, then determine SSL using f and the LL’s RC from
Table 4-1.
4.2.3 After Load Limiter installation:
If the LL is to be adjusted after installation on to the hoist, then determine the SSL using f and the hoist’s RC
from Table 4-1.
Table 4-1
Hoist
Capacity Code*
Load Limiter Type
Rated Capacity
f LL
(lbs.)
Hoist
(Tons)
001H 01H 176 1/8 1.55
003S 03S 331
1/4
1.45
003H 03H 375 1.64
005L
05S 595 1/2 1.30
005S
010L
10S 1190 1 1.30
010S
015S 15M 1279 1 1/2 1.14
020L
20S 1962 2 1.32
020S
025S 25M 2359 2 1/2 1.27
030C 30S 4145 3 1.09
050L 50R 6945 5 1.10
*Refer to ER2/NER2 Owner’s Manual.