REED 00 C50SS, Manual, Page: 20 / 84

REED
00 MODEL:
C50SS
TRAILER CONCRETE PUMP
OPER.
PAGE 19
•
If the delivery line will cross rebars, support must be considered for the pipe so that it
does not contact the rebar mat.
•
For best pumping results it is important to size the inside diameter of the pipe or
hose to that of the size of the aggregate in the concrete to be pumped. The general
rule is the inside diameter of the pump or hose shall be 3 to 4 times the size of the
largest aggregate in the mix. As an example:
1. Aggregate classified as 1 ½ inch (38mm) rock, 8 to 10% maximum content
by weight requires a 5 inch (127mm) diameter concrete delivery system.
2. Aggregate classified a 1 inch (25mm) rock, 10 to 15% maximum content by
weight, requires a 4 inch (100mm) diameter concrete delivery system.
3. Aggregate classified as ¾ inch (19mm)or smaller rock, 10 to 15% maximum
content by weight, requires a 3 inch (76mm) diameter concrete delivery
system.
•
For vertical concrete delivery system, the vertical pipe line should be anchored to the
building or other supporting structures every 10 ft (3m) of height.
PRE-PUMPING PREPARATIONS
Again we REMIND you to make sure the machine is in PROPER WORKING CONDITION .
One of the worst, and possibly the most expensive, situation to encounter is to begin
pumping and have a failure occur due to
NEGLIGENCE of a thorough pre-operation
inspection.
STARTING THE PUMP
Before starting diesel engine, check the position of the following controls and functions:
•
That the PUMP CYCLE switch is OFF
•
That the VOLUME CONTROL is CLOSED , screwed in.
•
That the AGITATOR control lever is in OFF position.
•
Check flush box is filled that sufficient lubrication oil or water exists. Replace cover.
REVISION: