REED 00 C50SS, Manual, Page: 45 / 84

REED
00 MODEL:
C50SS
TRAILER CONCRETE PUMP
MAINT
PAGE 15
MAIN PUMP CIRCUIT (Refer To Hydraulic Schematic)
The 00 MODEL C50SS is designed to pump concrete material from the hopper to the
placement site. To accomplish this requires the use of two (2) material cylinders that are
driven by two (2) hydraulic cylinders and the material pumping action is the result of the two
cylinders operating or stroking on an alternate basis. In other words, when one cylinder is
retracting, it is drawing into the material cylinder tube, the material from the hopper. The
other cylinder, which has its material cylinder already full, is extending. This causes the
material to be pushed through the swing tube and out into the delivery line. This action
continually takes place. This is the purpose of the
MAIN PUMP circuit, to provide the
hydraulic power for this operation.
The MAIN PUMP CIRCUIT is of the CLOSED LOOP type. In this closed loop circuit, the
main ports of the hydraulic pump are connected by a hydraulic line to each of the hydraulic
drive cylinders.
REVISION: