Epiroc EC 90T - Filling Procedure

Instructions
10 © Construction Tools GmbH | 3390 5140 01 | 2020-09-15
Original Instructions
3.2.1 Filling procedure
The following accessories can be supplied:
• 1 filling valve with pressure gauge 0-100bar, part
number 3361329516
• 1 filling hose 700mm length, part number
3361329517
or
• 1 filling hose 4000mm length, part number
3360479259
• 1 test pressure gauge ¼", 0-25bar, test category
1.6, part number 3361329518
• 1 nitrogen cylinder 2l, part number 3363034504
or
• 1 nitrogen cylinder 5l, part number 3363034506
• 1 country-specific adapter, if required (see additional
document, document number 3390710601)
The piston accumulator must to be filled through the fill-
ing valve. The filling valve is marked with »G« on the
cylinder cover. When filling the piston accumulator,
please observe the table above and follow the instruc-
tions provided step by step.
N
O
P
GO T
When the plate respectively the plates have not yet been
removed:
n
Remove the Allen screws(N) and the pairs of lock
washers(O).
n
Remove the plate(P) respectively the plates(P) from
the breaker box.
If a country-specific adapter(I) is required, it must be in-
stalled between the nitrogen cylinder and the pressure
relief valve(H).
T
U
F
H
I
K J
V
G
L
V
G
1.
Connect the pressure relief valve(H) to the nitrogen
cylinder(J).
2.
Close the check valve(F) on the pressure relief
valve(H).
3.
Connect the filling hose end(V) to the minimess con-
nection(L) of the pressure relief valve.
4.
Open the valve(K) of the nitrogen cylinder.
5.
Remove the threaded plug(T) from the filling
valve(G).
6.
Push the free filling hose end(V) onto the filling
valve(G).
7.
Slowly open the check valve(F) on the pressure re-
lief valve to let the nitrogen flow into the piston accu-
mulator.
8.
Read out the pressure increase from the pressure
gauge(U).
9.
Close the check valve(F) on the pressure relief valve
when the piston accumulator has reached the re-
quired prefill pressure +10%.
10.
Pull the filling hose out of the filling valve(G).
11.
Check the pressure in the piston accumulator and let
gas escape until the required gas pressure has been
reached.
12.
Install the threaded plug(T) in the filling valve(G)
and tighten it to the required tightening torque (see
chapter Bolt connections / Tightening torques).
13.
Close the nitrogen cylinder valve(K).
14.
Remove the label "Depressurised high pressure ac-
cumulator and piston accumulator" from the hydraulic
breaker's hose connection.