REED 00 C50SS, Manual, Page: 78 / 84

REED
00 MODEL:
C50SS
TRAILER CONCRETE PUMP
MAINT
PAGE 48
•
Unscrew the valve protection cap #6 and valve seal hex cap #5. Exercise extreme care
not to damage the O-ring #7 when removing the cap.
•
Before making the installation of the gauge unit to the accumulator, turn the “T” handle
counterclockwise until some resistance is felt. Check that the manual bleed valve is
closed. It not close hand tight.
•
Install gauge unit on the accumulator by screwing the cap nut onto the gas valve. Hand
tighten.
•
Proceed to turn T-handle clockwise a maximum of 3 full turns from the full
counterclockwise position.
•
The gauge should then indicate the pre-charge pressure. Refer to specifications for
correct pressure:
•
If pressure reading is TOO LOW then accumulator will need RECHARGED .
•
If pressure is TOO HIGH then it will be necessary to RELEASE pressure.
RELEASE OF PRESSURE
When gauge indicates that the pre-charge pressure is too high proceed as follows to release
some of the pressure within bladder.
•
With gauging valve installed, carefully open the MANUAL BLEED valve, releasing
some of the nitrogen gas.
•
While doing this observe gauge until sufficient gas has been released and desired
pressure has been reached.
•
Close the manual bleed valve. Wait approximately 10 minutes for the pressure to
stabilize, then recheck and if necessary adjust accordingly.
•
To remove the gauging unit, turn “T” handle until resistance is felt to close the gas
valve. Open manual bleed valve.
•
Disconnect the gauging unit by unscrewing the cap from the gas valve. Replace valve
seal hex cap and tighten to 18 lb. ft. Screw on valve protection cap, hand tight.
REVISION: