Friday I did a line pump job and was all set up ready to pump. The RM truck was backed up, had mixed and prepared for 15 min in the same spot. We were all ready to prime when all the sudden the RM truck wheels broke loose and slid backwards into my line pump pushing my pump and pickup down hill about 4 meters. Lucky no one was hurt. There was minimal damage it bent my hopper back and jack knifed my rear bumper in a little. The grade was very slight about 1' per 10 feet. I live in northern MN and the roads have a pack of snow and ice on them. Problem is this time of year they warm up and get greasy, because the temp changes from 0F to 22F with sun in a couple hours and this causes extra slick conditions. BE CAREFUL!

Might be a good idea to carry a couple 5 gallon pails of sand to spread around for traction.   On an industrial site crushed rock would do a better job yet.

When caught in that situation and nothing around here's what I did.Have mixer roll just a shade of mud into the chute,take a shovel and lightly spread some in tracks.Not exactly epa approved but keeps you and pump safe.

Remember the trucks tires generate heat from the trip.The snow tends to melt into ice,hence,slip and slide.