PAGE 30 — MAYCO C30HDGA CONCRETE PUMP • OPERATION MANUAL — REV. #1 (09/09/19)
OPERATION
PULSATION
A slight pulsation of the hose will always be noticeable near
the pump. Excessive pulsation of the hose near the pump is
normally due to higher than average line pressures caused
by stiff, harsh mixes, or extremely long pumping distances.
The use of 2 -1/2” I.D. hose in these extreme cases reduces
line pressures or the addition of slight amounts of water
to the mix, if permissible, will permit easier pumping. The
use of certain pumping admixtures may help.
If excessive pulsation exists in the hose, it is advisable to
use burlap or some means of wear protection under the
hose at points where the hose may wear through the outer
cover; e.g. over forms, steel or sharp curbs.
CAM ROLLER
If the cam roller does not ride on the cam profile smoothly, it
may be caused by insufficient line back-pressure; e.g., a wet
mix with only 50 feet of hose. Add more hose as necessary.
It can also be caused by cavitation or the passing of over-
sized aggregates through the valving, causing it to skip.
SNAP-JOINT
When using Snap-Joint couplings with gaskets to join hose,
see that they are washed clean after each job. Keeping the
hose ends clean (heavy duty) is very important for the best
job setup. A thin coat of grease on the rubber gasket or
dipping both coupling and gasket in water before coupling
the hose will make for easier installation.
REMOTE CONTROL
1. Connect the hand-held remote control cable (Figure
20) to the control box.
Figure 20. Handheld Remote Control Cable
2. On the control box, place the pumping control switch
in the REMOTE ON position (Figure 21)
Figure 21. Pumping Control Switch (Remote)
RADIO REMOTE CONTROL OPERATION
The MAYCO C30HDGA Concrete Pump has a remote
control feature (Figure 22) that allows the pump to be radio
controlled via a receiver/transmitter technique.
Contact your MAYCO representative for further information
regarding radio control pumping capability.
Figure 22. Handheld Radio Receiver/Transmitter
E-STOP
ON/OFF
PUMP
ON/OFF
FLOW
—
FLOW
+
REMOTE CONTROL RECEIVER
REMOTE CONTROL TRASMITTER
ANTENNA INPUT
MOUNT ON PUMP
FRAME BODY
SIGNAL CABLE
