ST-45HRM CE CONCRETE PUMP— OPERATING PROCEDURES
OPERATING SUGGESTIONS
1.A
2.Beforeconcreteisdischargedintothehopper,itissuggested that
Getting the concrete to flow through
NOTE the hose at the start of the pumping cycle can be one of the most critical
operations of the pour. (Manually operate the throttle when starting,
NOTREMOTELY)
CAUTION If hoses or lines are blocked for any reason, or if the lines are kinked when starting up or during the pumping cycle, the pump pressure could straighten out the kink or force out the blockage. This rapid surge of material could cause the lines to whip or move in a manner that could cause injury to personnel.
Inspect the lines at all times to prevent the above conditions
3.It is important that once the slurry procedure is completed, and you have started concrete flowing through the hose, do not stop the pour until all the slurry is pumped out and the concrete has reached the end of the hose.The only time to stop the pump at the start is if a blockage occurs.
4.Whenthepumpisstoppedforanyreasonduringapour;e.g.,
A.Leave the hopper full of concrete at the time of
B.If the shutdownperiod exceeds 2 to 3 minutes, turn off the engine so the vibration does not separate the mix in the hopper which can cause a blockage in the manifold when the pump is started.
C.Ifitisnecessarytowait10minutesormoreforanother load of concrete, it is wise to start the pump and pump 6or8strokesevery5minutestopreventsettingofthe mixinthesystem.Ifwaitingtimeisexcessive,itwould bewisetowashoutthepumpandhosesandstartover when the new truck arrives.
D.When pumping stiff mixes and there is waiting time between
E.When the pumping job requires a stiffer mix, the following method is suggested for starting: Take a water hose with a nozzle on it and apply water with a fine spray to the concrete as it comes down the redi- mix chute into the pump hopper after the slurry procedure is completed and you are ready to start pumping.
Using this procedure will make it easier to pump through the clean hose. Note: Once the concrete has reached the end of the hose, do not apply any more water in this manner as this procedure is used for starting only.
F.Hose sizing is very important: We strongly recom- mend on harsh mixes, vertical pushes, stiff concrete, shotcrete,longpushes,thata
5.Following the pump operation, proper wash out of all mate- rials or
6.Athoroughinspectionofthedrivecomponentsandgreasing ofallbearingsaftereachjobwillensureadequatelubrication and service to the pump which is normally operating in wet, grittyconditions.
NOTE | ||
yourMaycopumpwillnotdamage | ||
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| the bearing. |
PAGE 24 — MAYCO