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PAGE 38 — MAYCO C-30HDNI (PRECISION) PUMP — OPERATION AND PARTS MANUAL — REV. #7 (04/03/12)
C-30HDNI (PRECISION) PUMP — MAINTENANCE (PUMP)
General Clean-up Procedure
1. Ensure that there is no blockage in the hose and line
(Pumping Tips, step 8) or in the manifold (Pumping Tips,
step 7). If a blockage exists, clear it to ensure proper
operation the next time it is used. At the end of every pour,
or during long delays during a pour, the pump and delivery
system must be thoroughly cleaned by removing all con-
crete material.
2. Proper wash out of all materials or build up within the
pump manifold and hoses following the pumping opera-
tion will prevent problems when starting the next job. After
completion of the pour, pump the remaining concrete in
the hopper through the discharge line.
To avoid the possibility of separation
during clean-up, do not pump the
concrete below the inlet ball in the
hopper. It is best to leave approxi-
mately 3 to 4 inches of concrete above
the inlet ball.
3. Turn the pump engine off before filling the hopper with water.
Engine vibration at idle may “separate” material in the hopper,
causing jamming in manifold when pumping is resumed.
4. Fill hopper with water and resume pumping. The water will
push the concrete through the line. When the water runs clear
at the end of the hose, disconnect lines and shake out all the
sand and sediment so the lines will be clean for the next pour.
5. It is important that the hinged discharge cone on the pump
manifold be opened and all remaining concrete (rock and
sand) be thoroughly washed out. This must be done after
each job to prevent concrete build up in the discharge
manifolds and 3” discharge elbow.
NOTE
Preventive Maintenance
It is extremely important to maintain this pump due to the
highly abrasive nature of concrete material.
1. Inspect all drive components for loose or worn bolts.
2. Drive belt/chain should be checked to remove all slack. Refer
to adjustment procedure.
3.
ALWAYS
carry extra “O” rings.
4. Keep entire pump clean of concrete to prevent build-up.
5.
ALWAYS
grease every fitting daily. Use only premium grade
grease.
Over greasing will not damage
pump.
NOTE