REED 00 C50SS, Manual, Page: 26 / 84

REED
00 MODEL:
C50SS
TRAILER CONCRETE PUMP
OPER.
PAGE 25
CLEARING A PACK OR BLOCKAGE
Blockage in the delivery line during pumping operation will no doubt happen at one time or
another. An observant alert operator, who can recognize the symptoms is of great value.
A blockage can create excessive pressure in the system which is a dangerous condition.
When this occurs
IMMEDIATELY STOP the pump.
•
Place the pump direction switch to REVERSE . Then turn the pump switch to ON
allowing the pump to stroke 2-3 times in reverse to assist in relieving the pressure from
the delivery line blockage back to the pump outlet
•
Switch the pump OFF
NEVER ATTEMPT TO CLEAR A PACK OR BLOCKAGE
IN THE DELIVERY SYSTEM USING THE PUMP
PRESSURE.
•
Warn all personnel in the immediate area of the imminent DANGER and to stay clear
of the area.
•
Make sure those assigned to clear the blockage are fitted with EYE PROTECTION
before they open the clamping devise.
Extreme caution must be exercised when opening
the clamping devices on any part of the delivery
system. The possibility may still exist that there is
still some pressure trapped in the line.
•
Open the clamp in the area of the blockage and clear the pack.
•
When blockage has been cleared START pump, placing DIRECTION switch to
FORWARD . Pump the material at a LOW VOLUME until material flows steadily out
the end hose.
REVISION: