Finding a reliable cavalier coke machine compressor is usually the biggest hurdle when you're trying to regain one of these classic vintage beasts. There will be nothing quite such as requirements of a good old CSS-64 or a C-51 whistling away in the garage, but whenever that hum transforms into a clicking on sound—or worse, overall silence—you know you've got some function to do. These machines were constructed like tanks, but your best storage containers require a new motor eventually.
If you've just inherited a machine or picked 1 up at a good estate sale, the refrigeration system is the first thing you should check. Most people get enthusiastic about the paint job or the coin mech, but if the box doesn't get cold, you've just got a very heavy, very costly paperweight. Replacing or repairing the compressor isn't exactly a walk in the park, but it's definitely doable if you have the bit of tolerance and some simple tools.
Is usually Your Compressor Actually Dead?
Just before you go out and spend the few hundred bucks on a brand-new cavalier coke machine compressor , you require to make sure the one you have is actually toast. A great deal of times, people see a machine that isn't chilling and assume the compressor is seized. Actually, it could be something much simpler and cheaper.
The most common culprit is the begin relay or maybe the capacitor. If you connect the machine within and you listen to a definite "click" every few minutes followed simply by silence, that's a classic sign of the struggling start exchange. The compressor wants to start, but this just can't get that initial kick of juice this needs. You are able to usually fix this along with a "3-in-1" start kit, which bypasses the old components and gives the compressor a much-needed boost. It's an inexpensive fix and will save you the trouble of a full teardown.
Another factor to check could be the wiring. These aged Cavalier machines have got wiring harnesses which are decades old. The insulation gets frail and cracks, which could cause shorts or just prevent power through reaching the cooling unit. If the particular wires look like they're crumbling, don't even attempt to operate it. You'll desire to replace that will harness first for safety reasons by yourself.
Choosing the Right Replacement
If you've examined everything and the compressor is definitely dead—maybe it's grounded or the internal valves are usually shot—you're going to need an alternative. Back in the day time, Cavalier used a lot of Tecumseh units. Finding an exact, New Old Share (NOS) compressor is incredibly much impossible nowadays, and honestly, you most likely wouldn't want 1 anyway. Modern air compressors are way even more efficient and run much quieter.
When looking for a new cavalier coke machine compressor , you generally have to look at the horsepower and the bodily size. The majority of the mid-sized machines, such as the CSS-64 or the CSS-80, usually run on a 1/5 HP or 1/4 HEWLETT PACKARD unit. You desire to make sure the new unit can fit on the existing installation plate, or you'll be doing a few drilling and custom made fabrication.
You'll also need to consider the particular refrigerant. The original systems ran on R12, which is basically liquid gold now because it's very hard to find plus regulated. Most contemporary replacements are made with regard to R134a. If you're just swapping the particular compressor and maintaining the rest associated with the lines, you'll need to create sure the machine is completely flushed and that you're using the correct oil. Mixing old mineral oil along with new synthetic essential oil is a formula for a clogged system and the dead compressor.
The Importance associated with the Condenser Fan
I can't inform you how numerous people kill their particular cavalier coke machine compressor because they ignore the particular fans. The compressor generates a lot of heat while it's working in order to pull the heat out of the cabinet. That heat has to go somewhere, and that's the job from the condenser fan.
If that fan engine is gummed up with 50 many years of dust and cigarette smoke, it won't spin and rewrite fast enough to cool the coils. When the coils get too sizzling, the pressure in the system skyrockets, and the compressor has to work two times as hard. Ultimately, it just overheats and burns out there. Whenever you're playing with the refrigeration terrace, spend the twenty bucks to put a new lover motor in. It's cheap insurance for the expensive new compressor.
While you're at it, take a garden hose or even some compressed surroundings to those condenser coils. If they're caked in dirt, the air can't pass through them. A clean machine is a happy machine, and it'll run the lot less often, which saves a person money on your own electric powered bill too.
Dealing with the particular Evaporator Coil
The other half of the chilling equation is the evaporator coil in the cupboard. If your cavalier coke machine compressor is humming along and the particular lines feel cold, however the drinks aren't chilling, you might have an air flow issue inside.
Check the evaporator fan. Just like the condenser fan, these little motors die at all times. If the fan isn't blowing air across those cold coils, the cool stays trapped at the bottom of the unit and never reaches your bottles. Also, make certain the drain pit isn't plugged. If water backs upward and freezes on the coils, it'll turn into the giant block of ice, which works such as an insulator. You'll possess a compressor working 24/7 trying to cool by way of a wall structure of ice, and that's a fast way to kill a brand new unit.
The Conversion to Modern Refrigerants
As you probably won't use R12, you'll end up being doing a transformation. Most guys nowadays choose R134a mainly because it's readily obtainable at any car parts store. Nevertheless, some restorers prefer R409A or other blends that play a bit better with old techniques.
The particular big thing in order to remember is the thermal expansion valve (TXV) or even the capillary tube. If your Cavalier uses a capillary tube (which many of the smaller ones do), the space and diameter of this tube are calibrated for R12. Whenever you switch to R134a, it might not be a perfect complement. You might find that the machine doesn't get quite as cold as it used to, or even it requires longer to recover after you open the door. It's usually "good enough" for home use, when you're a perfectionist, you may need to tweak the charge or maybe the tube length.
DIY vs. Expert HVAC Help
Let's be genuine for a 2nd: refrigeration work is messy. It demands specialized tools such as vacuum pumps, manifold gauges, and torches for brazing ranges. If you aren't comfortable working with high-pressure gases plus fire, there is no shame within taking the refrigeration deck to the local shop.
Most old Cavalier machines have a "drop-in" refrigeration deck. You can literally unscrew the whole set up and slide this out the back or even bottom of the machine. This can be a godsend. You can just load the porch into your truck and take it to an HEATING AND COOLING guy. Tell him you need a new cavalier coke machine compressor installed, the system evacuated, and a fresh charge of refrigerant place in. It'll cost you some labor, yet you'll know this was done right, and you won't have to worry about leaks.
Final Thoughts on Maintenance
As soon as you get that will new cavalier coke machine compressor installed as well as your Cokes are cold, don't just just forget about this. These machines were designed to become serviced. Check the door seals—if they're cracked, you're simply wasting energy and wearing out your compressor. A great seal keeps the cold in as well as the humidity out.
Owning a vintage Coke machine is a bit like owning a classic car. This needs a little love every today and then. Yet honestly, once a person hear that compressor kick on plus you pull out there a glass bottle that's so cool it's got frost onto it, all the work becomes worth it. There's just some thing about the mechanised soul of these types of old Cavalier machines that modern plastic material vending machines can't touch. Keep your coils clean, listen with regard to weird noises, plus that compressor ought to keep your beverages cold for one more few decades.