Epiroc EC 90T - Prefilling the Piston Accumulator

Instructions
8 © Construction Tools GmbH | 3390 5140 01 | 2020-09-15
Original Instructions
3.2 Prefilling the piston accumulator
n
Select the hydraulic breaker type (columnA) to be prefilled with nitrogen.
n
Pressurise the piston accumulator to the prefilling pressure (columnB).
Prefilling pressures and needed gas according to the relevant hydraulic breakers
A B C D E
Hydraulic breaker
type
Prefilling pressure
with an ambient tem-
perature range of
-20°C to +40°C
Required quantity of
gas for prefilling of
HPaccumulator only
Required quantity of
gas for prefilling of
piston accumulator
only
Required quantity of
gas for prefilling of
piston accumulator
and HPaccumulator
[bar] [litre x bar] [litre x bar] [litre x bar]
EC 90T 10.4 0 21 21
EC 100T 6.7 0 15 15
EC 120T 6.7 0 24 24
EC 135T 5.5 0 26 26
EC 140T 6.6 54 34 88
EC 150T 10.2 54 61 115
EC 155T 11.4 54 73 127
EC 165T 12.0 90 99 189
EC 180T 9.1 90 104 194
MB 750 8.1 0 14 19
MB1000 5.0 0 12 12
MB 1200 9.3 0 36 36
MB 1500 8.2 0 39 39
MB 1650 8.9 0 47 47
MB 1700 8.0 54 41 95
HB 2000 10.4 54 59 113
HB 2500 9.8 54 63 117
HB 3100 12.0 90 100 190
HB 3600 9.7 90 90 180
HB 4100 9.8 90 101 191
HB 4700 8.8 90 115 205
HB 5800 7.9 90 113 203
HB 7000 7.5 180 148 328
HB 10000 7.5 180 206 386
C 135 8.1 0 29 29
C 140 6.6 0 31 31
C 165 9.7 90 80 170