When talking to the batch plant, ensure that the ordered mix is pumpable through your specific hose size. 

(i.e. “Hey I need a mix that is pumpable through a 3” rubber hose.”)

Position the skid steer and pump in the best way possible considering both the desired hose orientation and accessibility for the concrete mixer truck. Remember, you can attach your skid steer to either side of the pump to achieve the best setup possible!

1. Lay out hoses and ensure that you have plenty of length to reach all sections of the job.
2. If using different hose lengths, it is recommended that the longer hose sections be used closer to the pump, with shorter sections being used closer to the job.
3. Verify that all hose clamps are tightly secured, and retainer pins are placed.
4. Leave the first hose section detached from the pump.

When the first mixer truck arrives, begin the pump priming process. Mud Demon recommends using a 5-gallon pale and Type-N mortar mix for priming

1. First mix water with the mortar mix to achieve a runny/slurry consistency.
2. Verify that the piston of the pump material cylinder on which the s-tube is positioned is in the retracted position.
3. Position the outlet 90° elbow in the upright position and dump the pale of mortar mix into the elbow. Allow it to completely fill the retracted material cylinder.
4. Rotate the outlet 90° elbow to the desired position and attach the first hose section. Verify that the hose clamp retainer pin has been properly installed.

Once the concrete truck chute has been lowered and aligned with the concrete pump hopper, have the concrete truck operator release some material from the drum (allow material to go roughly halfway down the chute).

Observe the material and verify that it is a good, pumpable mix.

If any water or plasticizer is needed, have the truck operator add it. If the mix cannot be pumped regardless of modifications then the load will need to be rejected.

(!!) Attempting to pump poor concrete mixes will result in plugging and possibly pump or delivery line damage (!!)

1. Once the material has been approved, fill the pump hopper with concrete.
2. Place the pump into ‘FWD’ mode and increase the output to push the primer mix through the hose, followed by the concrete from the hopper.
3. Verify that the primer has exited the hose and concrete is being pumped as desired.

1. Adjust the output to your desired level and place the concrete as required by the job.
2. As you get toward the end of the job, you’ll want to pay attention to how much concrete is available in the hose and hopper as compared to how much is still required in the forms. Ideally, when the forms are full, you will have allowed the hopper to be as low as possible to reduce the cleanup required.

Tip: As you work your way back toward the concrete pump, remove hose sections to reduce hose weight and effort required to position the hose outlet.

SAFETY NOTE: Do NOT allow material level in hopper to fall below material cylinder opening height. Doing so allows air into the system and can result in serious injury or death!

After the job is complete, you’ll need to remove all material from the remaining attached hoses. This can be done in two ways:

1. Using a blowout cap
   1. Detach the first section of hose from the concrete pump.
   2. Attach an approved blowout cap to the first section of hose and place the end hose section outlet such that the exiting concrete will be placed in an acceptable location.
   3. Attach a pneumatic hose to the blowout cap and push all concrete from the hoses.
2. Using a sponge ball or similar (recommended).
   1. Put the pump in the ‘REV’ setting and increase the ‘OUTPUT’ to maximum.
   2. Allow the pump to run this way until air flow can be felt at the end of the attached hose outlet.
   3. Place sponge ball in a bucket of water until saturated.
   4. Place sponge ball at hose outlet and allow it to be drawn back toward the pump.
   5. Observe the concrete pump hopper concrete level as the remaining concrete from the hose system will be deposited into the hopper.
      1. Stop and remove concrete from hopper as necessary to avoid overflowing.
   6. Once sponge ball has returned to the hopper, STOP the pump.

(Regardless of method) Detach all hoses from the pump and spray down with water hose to remove any leftover concrete from inside and outside the hoses.

[Tip: Find a location to clean out which is approved by property owner.]

1. Once hose has been cleaned out and removed from the concrete pump, you can begin cleaning the pump itself.
2. Use a hose (generally from the ready mix truck) to spray any excess or spilt concrete off the outside of the pump and begin washing down the hopper, starting with the grate then the hopper sides. Work top to bottom.
3. Place the outlet 90° elbow in the upright position and, with pump running in reverse, spray water into the elbow so that material cylinder remnants are pushed out into the hopper. Do so until water exiting material cylinders is clean/free of concrete.
4. Raise waterbox plug until box is completely empty.

1. Allow machine to air dry to avoid pre-mature rusting.
2. Grease all (8) grease points, being sure not to over grease.