7/24/2019 EHB Install Guide 120208

1/1

Quick Reference Installation Guide Rev. Date: 08 Feb, 2012

Breaker Models EHB 008 / EHB 01 EHB 02 / EHB 03 / EHB03P EHB 04 / EHB 04H EHB 05 EHB 06 / EHB 10 EHB 13 EHB 17

Gas Charging Pressure1)

Back-head (Piston accumulator)2)

bar (psi) 8 ~ 10 (120~150) 8 ~ 10 (120~150) 10 ~ 12 (150~170) 15 ~ 17 (220~250) 15 ~ 17 (220~250) 15 ~ 17 (220~250) 15 ~ 17 (220~250)

High pressure accumulator bar (psi) n/a n/a n/a n/a n/a n/a 60 (870)

Pressure Adjust Valve Setting3)

n/a n/a n/a n/a n/a n/a 1.5 ~ 2.0(Number of turns open from f ull-close)

Hydraulic Piping

Line size (min. internal diameter) mm (in.) 9.5 (3/8) 12 (1/2) 12 (1/2) 12 (1/2) 19 (3/4) 19 (3/4) 25 (1)

Acceptable back pressure (max.) 4) bar (psi) 15 (220) 15 (220) 15 (220) 15 (220) 15 (220) 15 (220) 10 (150)

Hose Connections of breaker

Oil supply (IN) & return (OUT) BSP 3/8" O-Ring Boss BSP 1/2" O-Ring Boss BSP 1/2" O-Ring Boss BSP 1/2" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 1" O-Ring Boss

Air (A) n/a n/a n/a BSP 1/2" O-Ring Boss BSP 1/2" O-Ring Boss BSP 1/2" O-Ring Boss BSP 3/4" O-Ring Boss

Pressure Relief (min.) bar (psi) 30 (450) + measured 30 (450) + measured 30 (450) + measured 30 (450) + measured 40 (600) + measured 40 (600) + measured 40 (600) + measuredmax. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure

Acceptable Hydraulic Oil

Operating temperature5) o

C (oF) -20 ~ +80 (-4 ~ +176) -20 ~ +80 (-4 ~ +176) -20 ~ +80 (-4 ~ +176) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185)

Viscosity cSt 1000 ~ 12 1000 ~ 12 1000 ~ 12 1000 ~ 10 1000 ~ 10 1000 ~ 10 1000 ~ 10

Breaker Models EHB 20 / EH 23 / EHB 23 EHB 25 EH 30 / EHB 30 / EHB 32 EHB 40 / EHB 42 EHB 50 EHB 52 RHB 370

Gas Charging Pressure1)

Back-head (Piston accumulator)2)

bar (psi) 15 ~ 17 (220~250) 15 ~ 17 (220~250) 15 ~ 17 (220~250) 15 ~ 17 (220~250) 16 ~ 18 (230~260) 15 ~ 17 (220~250) 16 ~ 18 (230~260)

High pressure accumulator bar (psi) 60 (870) 60 (870) 60 (870) 60 (870) 60 (870) 60 (870) 60 (870)

Pressure Adjust Valve Setting3)

2.0 ~ 2.5 2.5 ~ 3.0 2.5 ~ 3.0 2.5 ~ 3.0 3.0 ~ 3.5 2.5 ~ 3.0 2.0 ~ 2.5(Number of turns open from f ull-close)

Hydraulic Piping

Line size (min. internal diameter) mm (in.) 25 (1) 25 (1) 32 (1-1/4) 32 (1-1/4) 32 (1-1/4) 32 (1-1/4) 32 (1-1/4)

Acceptable back pressure (max.)4)

bar (psi) 10 (150) 10 (150) 10 (150) 10 (150) 10 (150) 10 (150) 10 (150)

Hose Connections of breaker

Oil supply (IN) & return ( OUT) BSP 1" O-Ring Boss BSP 1" O-Ring Boss BSP 1-1/ 4" O-Ring Boss BSP 1- 1/4" O-Ring Boss BSP 1-1/2" O- Ring Boss BSP 1-1/2" O-Ring Boss BSP 1-1/2" O-Ring Boss

Air (A) BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss BSP 3/4" O-Ring Boss

Pressure Relief (min.) bar (psi) 40 (600) + measured 40 (600) + measured 40 (600) + measured 40 (600) + measured 40 (600) + measured 40 (600) + measured 40 (600) + measuredmax. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure max. opera ti ng pressure

Acceptable Hydraulic Oil

Operating temperature5) o

C (oF) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185) -20 ~ +85 (-4 ~ +185)

Viscosity cSt 1000 ~ 10 1000 ~ 10 1000 ~ 10 1000 ~ 10 1000 ~ 10 1000 ~ 10 1000 ~ 10

Notes:1) The prefill N2gas pressure measured statically (breaker not operating) without down load on the tool at the stabilized gas temperature of +20

oC. When checking at different gas temperature, refer to the operating manuals.

2) Recommended value at the normal operating condition (oil flow, oil temperature and viscosity, etc.)

3) The value which is set at the factory to obtain the nominal operating pressure at the middle value of oil f low and back-head gas pressure.

4) The maximum allowed oil pressure at the breaker's connection point to the return line (measured statically without the breaker)

5) The allowed temperature limits when using the oil of vicosity grade 46