Charging The Accumulator - Stanley MB656 User Manual

The tools required to charge the breaker accumulator
are the Charge Hose assembly (505232) and the
Accumulator Tester (28257), which are used with
other Stanley model breakers. When charging the
accumulator, make sure the tools and charge valve is
clean. Dirt can contaminate the charge valve and cause
leakage.
1. Remove the protective plug from the accumulator
charge valve.
2. Hold the chuck end of the tester and turn the gauge
fully counter clockwise to ensure the plunger inside
the chuck is completely retracted.
3. Screw the tester into the breaker charge valve by
turning the chuck. Do not use the gauge for turning
as this will advance the plunger in the chuck. Tighten
the chuck lightly against the breaker charge valve.
4. Turn the gauge clockwise to advance the plunger
until a pressure is indicated on the gauge. Do not
overtighten.
5. If the pressure is correct, unscrew the gauge to
retract the plunger. Then, loosen and remove the
tester from the charge valve. If the pressure is not
correct, proceed to Step 6.

CHARGING THE ACCUMULATOR

Main Accumulator
P/N 28257 Tester
P/N 505232 Charge Hose Assy
NOTE:
When disengaging the tester a "POP" of nitrogen is
normal.
6. Connect the charge hose assembly to the charging
valve on the tester. Make sure the valve on the
charge hose assembly is closed. Open the valve on
the nitrogen bottle.
7. Very slowly open the valve on the charge hose
assembly and slowly meter the nitrogen into the
breaker charge valve until the tester reads the
correct charge pressure.
8. When the correct pressure is obtained, close the
valve on the charge hose assembly and on the
nitrogen bottle. Unscrew the gauge to retract the
plunger. Loosen and remove the tester from the
charge valve. Before replacing the protective plug,
inspect the plug O-ring. If damaged or deformed,
replace the plug. Apply Loctite™ 242 to plug and
cap.
CHARGE PRESSURE SPECIFICATION
Main Accumulator: 350 PSI +/- 10 PSI
24 BAR +/- .7 BAR
MB656 User Manual ◄ 17