Harrington Hoists and Cranes (N)ER Load Limiter - ((N)ER1) - Manual (Page 15)

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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
Rated Capacity
Hoist
Capacity Code*
Load Limiter Type LL
(lbs.)
Hoist
(Tons)
f
001H 01H 99 1/8 1.55
003S 03S 198 1/4 1.45
005L 05S 397 1/4 1.30
003H 03H 198 1/4 1.65
005S 05S 397 1/2 1.30
010L
010M
010S
10S 794
1
1.30
015S 15 M 972 1.5 1.15
020L
020M
020S
20S 1296
2
1.30
025S 25M 1620 2.5 1.25
030C 30R 3307 1.10
030L
030S
30S 1944
3
1.10
050L 50R 5512 5 1.10
*Refer to ER/NER and SNER Owner’s Manual.
4.3 Adjust the Load Limiter
4.3.1 Refer to Figure 4-1.
4.3.2 Remove the LL’s case cover.
4.3.3 Loosen the setscrew with a hex wrench and Rotate the adjuster clockwise to obtain a sufficient gap
between the adjuster and the elec trical switch plunger.
4.3.4 Apply the Static Set Load determined in section 4.2 above.
4.3.5 Rotate the adjuster counter clockwise until the electrical switch is activated or clicks to make contact. A
circuit tester may be used to verify the making of contact.
4.3.6 Tighten the setscrew to lock the adjuster to the plunger arm.
4.3.7 Test the LL setting. Place a test load equivalent to the Set Point Load (RC X SP) on the floor directly
beneath the hoist. Connect the load to the hoist’s bottom hook such that there is no slackness in the hoist’s
load chain. Operate the hoist in the up direction to verify that the Load Limiter actuates and prevents the
hoist from lifting the load. Readjust if necessary.