Section 6 - Routine Maintenance - Graco MP-25 Operation

Section 6 – Routine maintenance
The MP-25 mixing pump unit is very simple to maintain.
By far the biggest part of maintenance of the MP-25 machine is cleaning during and after
a job. Failure to clean properly after use will damage seals, paint, and moving parts due
to material build up causing wear.
Pay particular attention, when cleaning, to the material build up inside the mixing tube,
around and on the mixing shaft. Pay attention to the seal around the auger drive / hauling
bracket fixed to the drive shaft at the rear of the machine.
DO NOT spray water inside the fan shroud or direct the jet towards the shroud or water
can get into the drive module and damage electrical parts.
Prior each clean down, the drive module should be disconnected from the power.
After each clean down the drive module should be opened, and ANY moisture or debris
removed with a soft towel then compressed air. DO NOT blow the water or debris into
the components.
Ensure that the seal between the hauling bracket and the motor is greased each day, with
a water resistant, corrosion inhibiting grease. Grease until a small amount of grease can
be seen "oozing" from around the hauling bracket. If there is grease in the seal then
material cannot get in!
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