Rig Master APU

I have a first gen rigmaster. Must be one of the few good ones 18 thousand hours and still going.

 

I've had mine since 2006. If it quit today I would buy another one. Normal stuff went wrong but that's true of any APU. If you don't keep up with repairs it can get overwhelming. I've also been replacing side panels that get rusted. Replaced motor mounts. Just because you spent $8k or more doesn't mean it's going to last forever. Repair what you have. It's much cheaper then buying another one.

 

Huh. I had an old ### Ringmaster worn out that came with my last truck. All rusted out etc. Would crank but not start. We finally cut the generator belt and turns out the generator was seized up or something but it started. Let us know if you figure it out. Thanks for the info.

 

Got the new unit as well. Oil pressure low? Try tightening the crimp on the wire going to fuel solenoid. Worked for me. The folks at rigmaster are working on an update for extra time before a/c compressor kicks in when you start unit on auto on for fan. Like it other than evaporated temp sensor going bad and going thru air filters quickly.

 

Ours is as quiet as a tripac.

 

What did you do? Not run turn it on? Lol

 

Ours was installed properly at BusnTruck Strafford, Mo.

 

As with any unit it has to be maintained. The Rigmaster has 3 things that effect it running quiet. The #1 is the air cleaner housing. Sounds strange but sucking air is very loud if it's not a tight fit. Exhaust manifold cracked and missing insulation.

 

After more shop visits with no luck we went on vacation & left truck in Springfield terminal with APU running for them to work on with hope the dam thing would throw the fault codes & it finally did...shop said the engine speed sensor was faulty & replaced it; also evidentially needed a belt shim kit & since they did both those things no more squealing belts (which it has done since new) & functions properly as of a week or so since......hallelujah

Maybe we can finally make it to 1000hrs & the first oil change.

BTW, thermoking reefers & Tripacs both use Yanmar engines, & you can get the (closed loop cooling) option on Tripac which does not tie into the truck engine coolant or oil.