Machine will move in reverse but will not move forward.

Check position of the cruise control potentiometer.

Machine has a code coming up saying check engine codes, but I cannot bring them up on the MDM.

On machines prior to 2010, the only way to look at most engine codes is to hook up to it live with a laptop.

*Note: In many cases we have noticed that the coolant level in the radiator has been just below the level sensor and will bring up an error message on the machine.

After changing the hydraulic oil filter on my machine, a noise developed in the hydraulic system.

On machines from 2005 to the present year, the cap for the hydraulic oil filter housing is direction specific. On the sides of the cap there is either two arrows or one arrow. The side with two arrows needs to be positioned on the side of the housing that has two hydraulic oil lines going into the housing.

Need to first check for air going into the leveling valve and see if there is air present at that point. If not, need to trace the air line back and look for a pinched line or a leak between the leveling valve and the air tank. If there is air present at the valve, something is stuck or possibly plugged internally with in that valve. Many times if the valve is removed, u can spray penetrating oil in the ports of that valve and work the lever back and forth it will clean out the valve and make it function again.

I open the rinse valve but cannot get water down to the solution pump.

Check to see if the inline check valve, blue check valve in line between the rinse tank and the solution pump, is functioning correctly. The arrow should be pointing with the direction of the flow going from the tank to the pump.

Boom tip broke away going through the field properly, but will not return to a normal operating state.

Make sure that the joint at the breakaway is free of debris. If there is no debris present in the joint, it may be necessary to pull the boom tip backward and swing it forward. This is sometimes necessary to re-set the kick-down valve.

Foam markers are not working, there is air present at the tank but cannot get the foam from the tank to the booms.

Check the solenoids on the top of the foam marker tank, and see if they are activating and clicking. If they are not clicking, check for power at the connector. In many cases the foam solution from the tank has corroded the solenoids and they will not activate.

Foam markers are not working correctly, the solenoids are activating but there does not seem to be any air pressure building in the foam tank.

On machines built from 2005 to the current year there is a solenoid that has to activate along with each of the solenoids on the top of the foam tank. This solenoid is located on the back side of the tank mount, next to the air pressure regulating valve.

Machine will not idle up with the throttle switch in the cab. It will idle up part way when the parking brake is engaged.

On machines equipped with a side fill option or a pressure washer option, if the switch for that option is left on the machine will not be allowed to idle up unless the parking brake is engaged. It will idle up at that point to provide more hydraulic oil flow to support that option.