Harman Mark II fan

Harman Mark II fan

PostBy: GAMESNIPER On: Fri Jan 18, 2008 9:46 am

does anyone know where you oil the blower fan .....is there any other maintence should be done to blower fan asm
GAMESNIPER
 
Stove/Furnace Make: HARMAN
Stove/Furnace Model: Mag Stoker

Re: Harman Mark II fan

PostBy: Wood'nCoal On: Fri Jan 18, 2008 9:55 am

Since oil holes are not provided it probably needs to be disassembled. It's a bushing motor, the armature shaft ends ride in bushings, that's where the oil is applied. The only other maintenance is to blow out the motor with compressed air to get all the dust out that can cause the motor to overheat.
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: Harman Mark II fan

PostBy: WNY On: Fri Jan 18, 2008 1:55 pm

Clean the blades of the squirrel cage with a toothbrush or small wire brush if there is build up on them.

ON my hyfire, it had a ton of gunk on the blades, took a while, but seems to put out more air now.

Usually there is a HEX Allen setscrew on the squirrel cage and you can remove it quite easily.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

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Re: Harman Mark II fan

PostBy: gambler On: Fri Jan 18, 2008 3:36 pm

WNY wrote:Usually there is a HEX Allen setscrew on the squirrel cage and you can remove it quite easily.


Mine have a Torx set screw. Took me about 20 min to finally decide it wasn't an SAE or metric allen screw.
gambler
 
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Pioneer

Re: Harman Mark II fan

PostBy: av8r On: Fri Jan 18, 2008 8:08 pm

gambler wrote:
WNY wrote:Usually there is a HEX Allen setscrew on the squirrel cage and you can remove it quite easily.


Mine have a Torx set screw. Took me about 20 min to finally decide it wasn't an SAE or metric allen screw.

You can use a allen on most torx.
av8r
 
Hot Air Coal Stoker Furnace: Leisure Line Hearth with twin turbos (sounds like it)
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Hearth model with twin turbos

Re: Harman Mark II fan

PostBy: WNY On: Fri Jan 18, 2008 8:22 pm

Most of the time can use the Right Angle part of the allen wrench to get to the screw, on the combustion blowers and others you have to go in thru the exhaust opening and thru the fan blades to get the screws.... :)
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Harman Mark II fan

PostBy: GAMESNIPER On: Mon Jan 21, 2008 9:34 am

cleaned my fan yesterday and got looking found 2 half holes on on motor there is tubes under holes to feed oil to bushings if anyone wants a pic to show them let me know
GAMESNIPER
 
Stove/Furnace Make: HARMAN
Stove/Furnace Model: Mag Stoker

Re: Harman Mark II fan

PostBy: Wood'nCoal On: Mon Jan 21, 2008 10:30 am

GAMESNIPER wrote:cleaned my fan yesterday and got looking found 2 half holes on on motor there is tubes under holes to feed oil to bushings if anyone wants a pic to show them let me know


I guess I have to take a closer look at my blower motor. You would have thought I'd have noticed them when I installed the switch in the collection box.
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Visit Hitzer Stoves