910198 – Tie Tamper
Phone: (262) 637-9681
11.2019 Rev 1.1
Page
15
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21
Charging the Accumulator
To check or charge the accumulator, the following equipment is required:
•
Accumulator tester
•
Charging assembly
•
Nitrogen bottle with a 800 psi/56 bar minimum charge.
1. On charge valves containing 5/8 inch hex locking nuts, first loosen the locking nut 1-1/2 turns.
2. Holding the chuck end of the tester, turn the gauge fully counter-clockwise to ensure the stem inside
the chuck is completely retracted.
3. Thread the tester onto the charging valve of the tool accumulator (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 by turning the gauge-end clockwise.
5. Connect the charge fitting on the hose to the charge valve on the Tester.
6. With the gauge and snub valve attached to the nitrogen bottle, and with the snub valve closed, open
the nitrogen bottle valve.
Note: It may be necessary to adjust the charge at 650-700 psi/45-48 bar to overcome any
pressure drop through the charging system.
7. While watching the pressure gage, open the snub valve allowing the gauge to read
600 to 700 psi/42 to 48 bar.
Close the snub valve on the charging assembly and also on the nitrogen bottle. Remove the charging
assembly from the accumulator tester.
8. Turn the gauge end of the tester fully counter-clockwise to retract the plunger in the chuck. Then
remove the tester from the charge valve.
9. On charge valves containing 5/8 inch hex locking nuts, tighten the locking nut.
