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MB05 User Manual ◄ 17
The tools required to charge the breaker accumulators
are the 505232 charge hose assy and the 28257 accu-
mulator tester which are used with other Stanley model
breakers. When charging the accumulators, make sure
the tools and charge valves are clean. Dirt can contami-
nate the charge valves and cause leakage.
1. Remove the protective plug from the accumulator
charge valve. NOTE: There is one accumulator on
this breaker; the upper accumulator.
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 turn-
ing 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 re-
tract the plunger. Then, loosen and remove the tes-
ter from the charge valve. If the pressure is not cor-
rect, proceed to Step number 6.
NOTE:
When disengaging the tester a "POP" of nitrogen is
normal.
6. Connect the charge hose assembly to the charg-
ing 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 as-
sembly and slowly meter the nitrogen into the break-
er charge valve until the tester reads the correct
charge pressure (200 psi).
8. When the correct pressure is obtained, close the
valve on the charge hose assembly and on the nitro-
gen bottle. Unscrew the gauge to retract the plung-
er. 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.
Nitrogen Bottle
(locally obtained)
CHARGE PRESSURE SPECIFICATION
Upper Accumulator: 200 PSI +/- 10 PSI
13.7 BAR +/- .7 BAR
Upper Accumulator
Tester
P/N 28257
Charge Hose Assembly
P/N 505232
(Includes Gauge, Valve, Hose
and Charge Valve Adapter)
CHARGING THE ACCUMULATOR