Graco MP-25 Operation page 44

General notes for operation
• Check that the supply voltage is correct for the unit to be operated.
• Check that the required phase configuration is correct for the machine to be
operated
• Grease auger drive seal daily, with water resistant, corrosion inhibiting grease.
• For starting the pump, Ensure that the speed control is at selection 1.
• Turn main power switch on.
• Prime the mixing chamber with water.
• Start the water pump.
• Push start button, and prime the hoses and wet out the system while setting the
water flow rate.
• Adjust speed to desired output.
• To stop machine push the stop button.
• If a hose plugs while pumping, reverse the direction on pump to relieve line
pressure. Note – The water flow solenoid does not operate in reverse..
• Never point hose towards personnel when pump is working.
• Stop and clean the machine every 2 hours until experience is gained with your
material.
• When cleaning the pump, do not remove grate while pump is running. Wash out
hopper with water and let it run out of the hose. When the hopper and mixing
chamber is clean, run foam balls through hose with clean water. Do not spray
water on or in control box. Control box should be wiped down with a damp rag.
Remove the mixing shaft and clean off ALL material
• If access is required in to the hopper, disconnect power source before removing
the safety grid. Motor can be "swung" out of the way, this facilitates easier final
clean up.
• Mixing Pump is supplied with an adjustable stator. The sleeve can be tightened to
bring working pressure back to normal range as the stator wears down. This
should be done in small increments. Over tightening the stator will cause
premature wear and heat up material.
• Always check hoses and cords for wear.
• If excessive material is allowed to build up the output of the machine will
decrease, if cleaning with water does not remove all material from with the
mixing chamber, then the clean out shaft should be employed. (See simple
maintenance)
• The unit runs on high voltage and is capable of high pressures in the hoses.
• NEVER spray water under the machine under the fan shroud, or water will enter
the drive module and damage the components inside
Page 44