Multiquip C30HDN - Manual (Page 38)

PAGE 38 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)
C-30HDN 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 deliv-
ery system must be thoroughly cleaned by removing all
concrete 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 hop-
per, 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
Piston Cup Wear
The rubber piston cups are a natural wear component and
will require periodic replacement. The life of the rubber cups
depends on many factors, proper oil level, oil cleanliness,
abrasiveness of aggregrate being pumped and material slump
etc.
IMPORTANT! To ensure maximum
cup life, the oil level in the lubrication
box
must be maintained at the
proper level. In addition the
lubrication box must be cleaned
periodically.
As the rubber piston cups wear, fine cement particles will
accumulate in the bottom of the lubrication box. Once this cement
paste reaches 1-inch in height, it is recommended that the
lubrication box be drained (flushed) and cleaned and the oil
replaced with new SAE 30 motor oil.
There are two clean-out ports
located at the bottom of the
lubrication box.
Any questions regarding the lubrication box clean-out procedure,
contact the MAYCO Service Department.
NOTE
NOTE