RE: (ET) Schematics

[Larry Elie <lelie ford com>]

Scott, WHICH type of mower motor shell are you looking for?  Most of the 
later ones are 4.5" dia, but 
one still needs to know which flange position (blade end of shell to 
flange).  The "M" or mid-mount 
decks are at a different position than the front mounts.

On the side, I tried a novel ET application over the weekend.  My 3 HP, 2" 
centrifugal Jacuzzi 
irrigation pump threw a rod.  The B&S engine was toast.  Yep, you guessed 
it.  I put a normal 
mower motor (3000 RPM @ ? torque) in the place of the B&S engine.  I had 
to ream the coupling, 
the ET's shaft is 3/4" and the B&S was 5/8", and put some new holes on the 
bracket.  Yes, the 
motor did drive the pump.  I obviously exceed the torque rating by a fair 
amount; the thermal 
cutout was letting it engage for about 5 minutes, than disengaged for 
about 1 as it cooled.  It 
was pumping about 60 gal/minute (the B&S is rated 140 at 3500 RPM).  
Unfortunately, the seal 
on the pump gave out after only about 6 hours (my fault, I didn't put the 
check valve back because 
I was trying to reduce the restriction and every 5 minutes the thing had 
to re-prime-- dry seals get 
HOT) from overheating.  Oh, yes, the charger by itself at 20-22 amps was 
powering the pump, the 
motor draw was 25-30.  Lets see; 30 amps at 36 V is 1080 watts, and 760 
would be 1 HP if the 
efficiency was perfect.  My duty cycle was about 83 % so my guess is the 
motor is rated at about 
1 HP.

Larry Elie


----------
From:   Scott[SMTP:Ke4cua bellsouth net]
Sent:   Saturday, June 19, 1999 9:03 AM
To:     elec-trak cosmos5 phy tufts edu
Subject:        (ET) Schematics

I have a full set of schematics and a couple sales brochures, if anyone is 
in need of a copy of a particular item let me know and I'll scan in a copy 
and email it out.
 I am in need of a motor case with magnets it tact of even just a magnet 
for a mower motor would be great. 

Scott
Jax, Fl
<<File: ATT00002.html>>