The Radiance hazer is a high quality machine that can provide many years of reliable service, but it does require maintenance. Depending on how heavily your machine is used, it may require cleaning several times a year. If you notice that your hazer’s output isn’t as good as it used to be, it’s probably time for a cleaning.
The process is pretty straightforward, you’ll need the following tools:
- #2 Phillips screwdriver
- 7/16” nut driver or socket wrench
- Needle nose pliers or hook-shaped pick
Begin with a cold machine – you don’t want to try this if the block is still hot. Start by removing the cover screws. There are two on the back of the machine, one on the top (near the fluid bottle) and two on one side. The cover will slide forward and up – there’s a grounding strap that will need to be disconnected.
Once you have the lid off, you’ll see the heater block near the front of the machine. It’s got an aluminum cover filled with insulation, held on with two spring clips. Use your pliers or hook-shaped pick to lift the springs from the cover. Gently lift the cover off.
This is the heater block. You can use your 7/16” nut driver to remove the four nuts and washers and lift the top of the block off. You’ll also want to gently remove the gasket and inspect it – if it’s cracked or damaged, it should be replaced. A leak in the heater block makes a big mess.
We can see this block is fairly dirty, when clean the chambers should be shiny aluminum. We’ll use our flat bladed screwdriver to scrape out as much of the burnt-on fluid as possible. Soaking in vinegar can help loosen things up. You can take this opportunity to remove the hose from the inlet port and run a 5/64” drill bit into the tube to make sure it isn’t clogged.
Once everything’s clean, reverse your disassembly, replacing the gasket and top of the heater block before putting the flat washers, split washers and nuts on and tightening. Make sure these are tight – otherwise you may have a leak.