Delving into the far reaches of my loft yesterday I found this long-forgotten HASAG Polar Lamp #5A. I’ve probably had this for 40 years or so. Some pictures attached. Looks to be complete and in reasonable condition apart from some fine surface rust in places. I’ve never tried fettling one of these so I’m wondering if there is an expert out there somewhere who could advise me please? It would be good to see it alight. All the pictures I have found (on this site) suggests that it should have a Glass, so any suggestions of where I might find one would be welcomed. Ditto the correct mantle: 800 cp? Any information on Age and possible value would also be appreciated.
That's a good looking lamp which should clean up well. In spite of their shape, these hanging lamps generally aren't too difficult to fettle. Use penetrating oil on the nuts and bolts and exercise patience. Look here Detailseite: Glasglocken für Hängelampen- - hytta.de for Glasglocke 165 And here for mantles Detailseite: LUXOR Glühstrümpfe- - hytta.de Age - pre war. It's site policy to not give valuations.
Here is a restoration manual for a Petromax 834. Not the same but the basic are. Clean all the brass parts, make all seals seal and all valves operate. main challence is the tank. I don't know if a replacement decal is available but the tank should be cleaned and painted to prevent re-rusting. All the enamel looks good
Thank you all for your comments, advice, and links. It is very much appreciated. I must admit to being slightly daunted; if i was a Tilley or Bialaddin lamp I wouldn't hesitate..... The good news is that I did a pressure test last night and although the pressure dropped overnight, a few minutes work with leak detecting fluid indicates that I will definitely need a new washer for the filler cap. I'll put some fuel in the tank over the next couple of days and try again and see if the control valve functions. Wish me luck.
Well the filler cap has more then one spot to leak, . - seal on the tank - pressure release on top - bicycle pump valve
Hello Tilleyscout, here are some information for you so that you can make a check of your Polar lamp. Kind regards Jörg
@tilleyscout Congratulation You are very lucky to be the owner of a Hasag 5a Polar . If you do test run you have to hang it up on a steel chain or steel cable. The string you are using may burn through from the heat and the lamp will fall down. Reinhard
@tilleyscout I saw the call for help in my mailbox. Unfortunately, I don't have a Hasag "donut lamp" myself, but I try to help you anyway. Bevore commissioning: -Buy a glass globe and mantles -Visual inspection of all technically relevant parts. -Clean jet,clean or replace filter in jet. -Clog in carburetor (brass gauze)may need to be cleaned or replaced. -Check burner and mixing chamber must be solid. -Obtain an air pump and hose with a suitable fitting. -Replace the seal on the filler plug. -Fill the reservoir with kerosene, build up pressure,carefully check for leaks. Starting the lamp: -Fill the reservoir with kerosene, do not fill it up completely, build up pressure of approx.2bar. -Tie and burn the mantle. -Fill the preheating bowl with alcohol and light it. -Shortly before the alcohol has burned, open the shut-off valve and let the light shine. Turn off the lamp: -Close the shut-off valve. -Release the pressure after cooling. There should be no compustible material above the lamp. Use outdoors. Much luck. Reinhard
Correction: Just before the alcohol has completely burned off,open the shut-off valve and let the light shine. Reinhard
Hi Reinhard Thank you for taking the time to get back to me. Very much appreciated. I am happy that the tank holds pressure but I do not see a jet of fuel when the tank is pressurised and the valve opened, so I need to find the location of the blockage. I am planning on a complete dismantling; a job for next week when I have cleared some space on my workbench. If you have any suggestions as to where I might be able to obtain a replacement jet, that would be very welcome. I am about to print your instructions; they will go on the board in my workshop. Thanks again, John
Hello John, You have to keep the original jet and carefully clean the jet hole. For example with a needle HK500 or a Petromax cleaning needle. There is no substitute for this Hasag jet. You have to pull the brass gauze out of the carburetor with pliers. Then you have to free the carburetor with a bicycle bowden cable. You have one of the most wanted "donut lamps" in the world.You should treat it as if it were pure Gold. Reinhard
Hello John, There is usually a brass filter at the bottom of the "K1169" riser.This can be clogged. Please check. Reinhard
The steel Petromax donut jets have a mesh inside the jet. I am not sure HASAG did this too. Even the pick up tube had a piece of mesh in it. Stupid place since it was hard to reach.
