Forum Discussion
FIRE_UP
Jan 18, 2014Explorer
Well gents,
I just completed another project. My basement A/C unit was making one heck of a racket while running. It's been getting a tad worse as time went on. We have an '04 Itasca Horizon 36GD with the C-7 330HP CAT and, the basement A/Cs in those Winnies and Itascas have been know for this issue. What I did was remove the A/C unit, set it on some saw horses, alongside the coach and then, remove the top of the unit to find that, on the outside fan, (a squirlcage unit) they used a bronze bushing instead of a bearing.
Well, a trip to Graingers remedied that with a new, Pillow block sealed bearing. Much quieter now. While I had that A/C unit out, I gained access to some very important electrical components. As you'll see in the pics, they were in quite sad shape. What I found out was, they all had to do with the starting system of that CAT. And, they're impossible to get at, with that A/C unit, mounted in its cubby hole.
So, I took that whole system apart, cleaned all the cable ends and installed a new:
135 amp, automatic reset, circuit breaker
250 amp, Bussman, fuse holder
Remote start, solenoid/coil.
The big beast started pretty good before this work but, it spins over considerable better now. And, you'll see why in the pics. So, my point here is, if any of you have a similar situation, do get in there and take a look and see what kind of condition your system is in. It is impossible, on that coach, (and possibly many more of the same vintage, make and model) to do any service on that system, with the A/C unit in place.
Scott
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I just completed another project. My basement A/C unit was making one heck of a racket while running. It's been getting a tad worse as time went on. We have an '04 Itasca Horizon 36GD with the C-7 330HP CAT and, the basement A/Cs in those Winnies and Itascas have been know for this issue. What I did was remove the A/C unit, set it on some saw horses, alongside the coach and then, remove the top of the unit to find that, on the outside fan, (a squirlcage unit) they used a bronze bushing instead of a bearing.
Well, a trip to Graingers remedied that with a new, Pillow block sealed bearing. Much quieter now. While I had that A/C unit out, I gained access to some very important electrical components. As you'll see in the pics, they were in quite sad shape. What I found out was, they all had to do with the starting system of that CAT. And, they're impossible to get at, with that A/C unit, mounted in its cubby hole.
So, I took that whole system apart, cleaned all the cable ends and installed a new:
135 amp, automatic reset, circuit breaker
250 amp, Bussman, fuse holder
Remote start, solenoid/coil.
The big beast started pretty good before this work but, it spins over considerable better now. And, you'll see why in the pics. So, my point here is, if any of you have a similar situation, do get in there and take a look and see what kind of condition your system is in. It is impossible, on that coach, (and possibly many more of the same vintage, make and model) to do any service on that system, with the A/C unit in place.
Scott
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