Harrington-hoists-and-cranes (N)ER Load Limiter - ((N)ER2) Manual de usuario

Owner’s Manual LOAD LIMITER for ER2 and NER2 SERIES ELECTRIC CHAIN HOIST 1/8 Ton through 5 Ton Capacity EFFECTIVE: APRIL 2, 2009 WARNING

10 Figure 3-1 Installation of Standard Suspension Assembly for ER2 (1/8 Ton – 3 Ton Except 2 1/2 Ton) **For installation of the LL, LL Suspension As

11 3.1.2 3 to 5 Ton ER2/NER2 – These applications retain the standard suspension configuration. LL Suspension Plates and LL Connection Yokes are

12 Figure 3-3 Installation of Standard Suspension Assembly for ER2 (025S and 050L)

13 Figure 3-4 Installation location of LL (3 and 5 Ton) 3.2 Socket Frame holder and Load Limit Relay 3.2.1 The Socket Frame Holder L mounts betw

14 Figure 3-5 Installation of Socket Frame Holder L and Socket Frame Complete Set Figure 3-6 Installation of LL Cable Connector 3.2.2 Install

15 Model Single Speed Dual Speed B C D E, F Figure 3-7 Placement of LL Relay

16 Figure 3-8 Correct Orientation of LL Relay Figure 3-9 LL Relay Electrical Connection (Single Speed)

17 Figure 3-10 LL Relay Electrical Connection (Dual Speed) 3.3 Electrical Connections 3.3.1 Refer to wiring diagram for ER2/NER2 71023 and 71024

18 Figure 3-11 Single Speed Wiring Diagram

19 Figure 3-12 Dual Speed Wiring Diagram

2 Table of Contents Section Page Number 1.0 Important Information and Warnings ...

20 Figure 3-13 LL Wiring Diagram Location 3.4 Performance Test Confirm via load testing that the LL actuates within approximately +/- 8% of its s

21 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 Limi

22 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 Rotat

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24 5.0 Parts List 5.1 Internal Parts List Table 5-1 Internal Parts List Fig. No. Part Name Qty Load Limiter Type 01H 03S 03H 05S 10S 15M 20S 25

25 Fig. No. Part Name Qty Load Limiter Type 01H 03S 03H 05S 10S 15M 20S 25M 30S 50R 17 Coned Disc Spring 14 Y1LE005S9204 7 Y1LE005S9204 9 Y1

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27 5.2 Assembly Parts List 1/8 Ton – 1/4 Ton S ER2M LL Suspension Assembly Figure 5-1 YL2BS1102 1/4 Ton H –

28 1 1/2 Ton – 2 Ton ER2M LL Suspension Assembly Figure 5-3 YL2ES1102 2 1/2 Ton

29 1/8 Ton – 1/4 Ton S Hook-Mounted ER2, ER2P, ER2G, and ER2M (Parallel) LL Suspension Assembly Figure 5-5 YL2BS1108 1/4 Ton H – 1 Ton Hook-Mounted

3 1.0 Important Information and Warnings 1.1 Terms and Summary 1.1.1 Definition of Terms This manual provides important information for personnel i

30 1 1/2 Ton – 2 Ton Hook-Mounted ER2, ER2P, ER2G, and ER2M (Parallel) LL Suspension Assembly Figure 5-7 YL2ES11

31 3 Ton 5 Ton Figure 5-9 Connection Yoke D

32 Table 5-2 Assembly Parts List Fig. No. Part Name Suspension Type* Qty Hoist Capacity 001H 003S 003H 005L/005S 010L/010S 015S 020L/020S 025S 030

33 *Suspension Type: M = ER2M, H = Hook-Mounted ER2, P = ER2P, G = ER2G, MP = ER2M (Parallel) †Supplied with the hoist. 5.3 Load Limiter for ER2G

34 6.0 Warranty All products sold by Harrington Hoists, Inc. are warranted to be free from defects in material and workmanship from date of shipment

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www.harringtonhoists.com Harrington Hoists, Inc. Harrington Hoists - Western Division 401 West End Avenue 234

4 1.2 Product Overview The product covered by this manual is Harrington’s Load Limiter (LL) for use with Harrington’s ER2/NER2 Series of electric ch

5 2.0 Technical Information 2.1 Product Identification Table 2-1 LL Identification Hoist Capacity Code* Load Limiter Type 001H 01H 003S 03S 003H 03H

6 2.3 Dimensions 2.3.1 Load Limiter Table 2-2 Load Limiter Dimensions Load Limiter Type 01H 03S 03H 05S 10S 15M 20S 25M 30S 50R Dimensions (in) a 0

7 2.3.2 Hoist Figure 2-1 Hoist with LL Table 2-3 Comparison to Standard Model (Without Load Limiter) Hoist Cap Capacity (Tons) Additional Weight*

8 2.4 Principle of Operation Refer to Section 5.0 Parts List for diagram and parts names. When a load is applied between the Plunger and the Casing,

9 3.0 Installation 3.1 Load Limiter and Suspension Plate 3.1.1 1/8 to 2 1/2 Ton* ER2/NER2 – For installation of the LL, LL Suspension Assembly i