efm 520 gear box

efm 520 gear box

PostBy: silves On: Mon Feb 04, 2013 3:48 pm

I have the older style cast iron gear box. I noticed that stoker man posted that the oil to be used is 20 weight. I am assuming this is a gear oil but am not sure where to obtain it. Is there a substiture such as a gear oil available at the auto stores such as a 85-90 wt gear oil.
silves
 
Stove/Furnace Make: efm
Stove/Furnace Model: 520

Re: efm 520 gear box

PostBy: stoker-man On: Mon Feb 04, 2013 4:31 pm

It was a straight 20W oil that efm recommended. Others have used heavier oils
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: efm 520 gear box

PostBy: Rob R. On: Mon Feb 04, 2013 4:56 pm

You will have a hard time finding SAE 20 machine oil in small quantities. An ISO 68 hydraulic oil or industrial gear lube would be roughly the same viscosity, but those products aren't readily available in small quantities either.

I use plain 80w-90 gear lube in the gearboxes and ratchet drives with good results...75w-90 will my next choice when my current supply is exhausted.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: efm 520 gear box

PostBy: mozz On: Mon Feb 04, 2013 6:10 pm

You can buy straight 30w non detergent oil at just about any auto parts store.
mozz
 
Stoker Coal Boiler: Axeman Anderson 1982 AA-130 Steam

Re: efm 520 gear box

PostBy: Mark (PA) On: Mon Feb 04, 2013 8:55 pm

Also using 80w-90

that is what I have on hand for my Farm equipment gear box oil.
Mark (PA)
 
Stove/Furnace Make: 1953 EFM SF-520 High Boy
Stove/Furnace Model: Fitzgibbon Boiler

Re: efm 520 gear box

PostBy: Rob R. On: Wed Feb 06, 2013 9:18 am

mozz wrote:You can buy straight 30w non detergent oil at just about any auto parts store.


Yes...but there is no real reason to use it in this application. My opinion is you would be better off with a gear lubricant, but in this case the load and temperature is so moderate that it might not matter very much. Back in the 1940's a lot of extreme-pressure rated gear lubricants were not compatible with yellow metals, but that is not the case today.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: efm 520 gear box

PostBy: cardinal On: Thu Feb 07, 2013 10:06 pm

On a new 520 how do you check oil level in gear box and do I have to oil the fan motor. I noticed a small hole on top of motor is this for oil
cardinal
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: Rice

Re: efm 520 gear box

PostBy: stoker-man On: Thu Feb 07, 2013 11:02 pm

The newer gearboxes used synthetic 90W oil and it does not have to be changed. There is a plug around the level of the shaft that should just seep oil if opened.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: efm 520 gear box

PostBy: cardinal On: Fri Feb 08, 2013 1:17 am

Thanks stoker man what about the motor does that need any small drops of oil, I see a small hole on top of motor
cardinal
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: Rice

Re: efm 520 gear box

PostBy: stoker-man On: Fri Feb 08, 2013 6:31 am

I think they came with a yellow plug. There should be info on the motor. Maybe 8 drops a year?? Search 4MA10 motors on Grainger for info.
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: efm 520 gear box

PostBy: Rob R. On: Fri Feb 08, 2013 7:32 am

cardinal wrote:On a new 520 how do you check oil level in gear box and do I have to oil the fan motor. I noticed a small hole on top of motor is this for oil


There is a small hole in the motor housing above each bearing. 2-3 drops once per season should be fine.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: efm 520 gear box

PostBy: cardinal On: Sat Feb 09, 2013 12:34 am

OK Thanks two small holes on top of motor gotcha
cardinal
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: Rice