14 ► BR37 User Manual
CHARGING THE ACCUMULATOR
ACCUMULATOR TESTING
PROCEDURE
To check or charge the accumulator the following equip-
–
– -
NITROGEN bottle with an 800 psi/55 bar minimum
charge.(Not included in 31254 kit)
1.
This assembly contains nitrogen under pressure
Remove the plug from the handle or handle pivot.
2.
02835) turn the gauge fully counterclockwise to en-
sure that the stem inside the chuck is completely
retracted.
3. Thread the tester onto the accumulator charg-
ing valve. Do not advance the gauge-end into the
chuck-end. Turn as a unit. Seat the chuck on the
accumulator charging valve and hand tighten only.
4. Advance the valve stem of the tester by turning the
gauge-end clockwise until a pressure is read on the
gauge (charge pressure should be 500-700 psi/34-
48 bar).
5. If pressure is OK unscrew the gauge-end from the
chuck to retract the stem, then unscrew the entire
tester assembly from the accumulator charging
valve. If pressure is low, charge the accumulator as
described in the following section.
6. Install the plug.
ACCUMULATOR CHARGING
1. -
ing procedure above.
2. Connect the chuck of the charging assembly to the
charging valve on the accumulator tester or, if pre-
ferred, remove the tester from the charging valve
and connect the charging assembly chuck directly
to the charging valve.
3. Adjust the snub valve to a charging pressure of
gauge, open snub valve slowly until it reaches the
proper charge pressure (600–700 psi).
NOTE:
It may be necessary to set the gauge at 650–700
psi/45–48 bar to overcome any pressure drop
through the charging system.
4.
snub valve on the charging assembly hose and re-
move the charging assembly chuck from the accu-
mulator tester or tool charging valve.
5. If the accumulator tester has been used, be sure to
turn the gauge-end fully counterclockwise before re-
moving the tester from the charging valve of the tool.
Install the valve cap.
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