On a trip not long ago my ARB ckma12 air Compressor quit working rendering my front air locker useless as well as not being able to air up the tires at trails end. I didn’t realize just how much I loved this piece of Gucci gear until quit on me.
On the trail I started to trouble shoot. First thing I checked was the fuse and sure enough it’s blown. Another rig happened to have a spare 40amp fuse and I figured that would fix it. Air compressor turned on and built up pressure and then kicked off as usual. As pressure dropped and the air compressor attempted to turn again, the fuse blew once more.
Did some snooping around on other forums and was led to the conclusion that I was dealing with an electric motor issue. Made a trip to Desert Rat Offroad Center in North Phoenix and explained my situation to which they promptly made a call to ARB for a solution.
ARB assessed that my compressor had an issue with the brushes. Unfortunately mine is about 5-6 years old and not covered under a warranty, however the replacement part was about $30 and the repair was extremely straight forward.
Above is the old warm out part. It never occurred to me to take pictures as I was doing the repair so my apologies there.
On the side of the compressor with the electrical pig tail is long bolts attaching the above assembly to the rest of the compressor. Once bolts are out, replace the assembly from the above pics with the new one. Notice on the first picture in the center what looks like two brass/copper looking blocks. Those are under spring tension and need to pushed to the out side until they clip in place.
These I assume are the brushes ARB referenced. They look like electrical contacts for the motor. When placing the above assembly back on the compressor, just before it’s completely seared, you’ll need to use a small screwdriver/punch to gently release brass/copper looking blocks.
Off you don’t, you’ll get all back together and wonder why the darn thing still doesn’t work. Ask me how I know!
Probably not the greatest repair write up but I found nothing in my google searches that was any help. Once I dived into it, it really was very straight forward. A little determination and some curiosity as to what my air compressor looked like from the inside, and I was spared from needing to purchase a whole new unit!
Sent from my iPhone using OB Talk
On the trail I started to trouble shoot. First thing I checked was the fuse and sure enough it’s blown. Another rig happened to have a spare 40amp fuse and I figured that would fix it. Air compressor turned on and built up pressure and then kicked off as usual. As pressure dropped and the air compressor attempted to turn again, the fuse blew once more.
Did some snooping around on other forums and was led to the conclusion that I was dealing with an electric motor issue. Made a trip to Desert Rat Offroad Center in North Phoenix and explained my situation to which they promptly made a call to ARB for a solution.
ARB assessed that my compressor had an issue with the brushes. Unfortunately mine is about 5-6 years old and not covered under a warranty, however the replacement part was about $30 and the repair was extremely straight forward.
Above is the old warm out part. It never occurred to me to take pictures as I was doing the repair so my apologies there.
On the side of the compressor with the electrical pig tail is long bolts attaching the above assembly to the rest of the compressor. Once bolts are out, replace the assembly from the above pics with the new one. Notice on the first picture in the center what looks like two brass/copper looking blocks. Those are under spring tension and need to pushed to the out side until they clip in place.
These I assume are the brushes ARB referenced. They look like electrical contacts for the motor. When placing the above assembly back on the compressor, just before it’s completely seared, you’ll need to use a small screwdriver/punch to gently release brass/copper looking blocks.
Off you don’t, you’ll get all back together and wonder why the darn thing still doesn’t work. Ask me how I know!
Probably not the greatest repair write up but I found nothing in my google searches that was any help. Once I dived into it, it really was very straight forward. A little determination and some curiosity as to what my air compressor looked like from the inside, and I was spared from needing to purchase a whole new unit!
Sent from my iPhone using OB Talk
