Rm-materials-handling MANUAL CHAIN HOISTS Manual de usuario descargar pdf (Pagina 53)

RLP I&M MANUAL/EN/07.20.10

9/18

This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade

secret that may not be reproduced, disclosed to third parties, altered or otherwise employed in any manner whatsoever without the express written consent of R&M MATERIALS

4 INSPECTIONS

4.1 Load Chain Inspection

Check the condition of the load chain regularly. Never use the equipment if any of its links are cracked or

deformed. Link wear must not exceed 10 % of the specified diameter of the load chain.

Measure the load chain over 5 links + 2 diameters as shown below in the Load Chain Technical Specification

section. Compare the measurement with the appropriate value of the Dimension over 5 links + 2 diameters

for a new load chain.

Replace the unit if the link wear exceeds 10 %.

4.1.1 Load Chain Technical Specification

Table 1. Load Chain Technical Specifications

Capacity 3/4 Ton 1 ½ Ton 3 Ton 6 Ton

750 kg 1500 kg 3000 kg 6000 kg

Chain diameter x pitch

5.6 x 17 7.1 x 21 9 x 27

Grade 100 100 100

Class V V V

Minimum breaking strain (N/mm2)

1000 1000 1000

Standard DIN 5684 DIN 5684 DIN 5684

Safe load limit on 1 fall (kg) 750 1500 3000

Breaking load (kN) 49.3 79.2 127

Min. total elongation over 7 links 10% 10% 10%

Dimension over 5 links + 2

diameters (mm) / (inch)

96.2 (+0/-0.5)

3.787 (+0/-

0.0197)

119.2 (+0/-0.8)

4.693 (+0/-00315)

153 (+0.45/- 0.25)

6.024 (+0.0177/-0.0098)

Weight (kg) per meter

Weight (lb) per foot

0.69

0.46

1.09

0.73

1.72

1.16

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 80 81

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