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Coach #1046 owned by Stephen Heinrichs is on the right. The coach on the left is Eric Whedon's coach #0587 and we are in his driveway as he is the AC specialist with all of the necessary tools and knowledge. Open engine compartment doors seems to be a common event! | Here is the modern 7 piston Sanden compressor that will be installed. From this position, the front of the coach will be to the left and the rear to the right. | This is an unpainted version of the bracket that will be used to do the installation. This bracket was custom designed specifically for the FMC motorcoach and how the York was installed using both a base plate and two supplemental braces. The two studs you see will slide directly into the braces that originally were attached to the base of the York. | This is the York AC compressor that will be removed and replaced by a Sanden unit. Note that it sits at approximately a 45 degree angle with it's side bolted to the mounting plate and two braces attached to the upper side of the base. The braces are not visible in this picture as the view is blocked by the compressor. |
The York is gone forever! Now you can see the mounting plate where the side of the York was attached and, if you look very closely and curl your tongue, you will see the two braces. Attachment was with four bolts into the side and two into the base. Secure is good! | For those that were not able to properly curl their tongue, I have placed red circles around the bolt holes in the ends of the two braces that previously were attached to the base of the York compressor. The two studs on the new bracket will slide into these holes. | The new bracket has been slid into position. To the right you can see the two bolt holes that will provide the pivoting attachment for the new compressor. To the left are the sloted attachment arms. Yes, the bracket provides for belt tensioning. The dual belts operate both the compressor and the alternator. | Another view of the bracket showing it resting on the original bracket in the position in which it will be secured. |
Another view. Four bolts will attach the new bracket to the original bracket. With the two studs that attach to the braces, that adds up to six attachment bolts. Secure is good! | Here you see the initial fitting. The bolts that attach the bracket to the original bracket are in place and the belts are on the pulley. In this case the orignial belts were able to be used, but slightly longer belts would be better. | Here you see the installed compressor. Belt pulley alignment (checked with a straight edge between the compressor and the alternator) was tweaked by shimming between the bracket arms and the compressor ears. The low pressure hose comes in from the left and the high pressure discharge hose is attached with a 90 degree fitting and exits to the top. Two service/shutoff valves are attached to the compressor itself. | This shows the completed installation with the wiring for the clutch completed. Please note that we stayed with r-12 for long term savings due to 10% lower hp requirements and 5% higher cooling capacity. To do so we had to change the oil that came in the compressor to the correct oil for r-12 prior to installing the unit. |
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