toploader55
Well-known member
Hey Bob
How's the UM4 coming along ?
I just love those machines. Just curious.
How's the UM4 coming along ?
I just love those machines. Just curious.
My Hobart U|M-4 from Philadelphia has ARRIVED!
- Thread starter bobbins
- Start date
Help Support :
Hobart UM-4 Dishwasher is finally operating
Wow..I can't believe how time flies...took me 12 years to finally get my Hobart UM-4 running!
Wow..I can't believe how time flies...took me 12 years to finally get my Hobart UM-4 running!
hippiedoll
Well-known member
VERY COOL!!
I never knew there was a single rack dishwasher?!
That is so cool!
Wish I could see inside to see how it washes the dishes. There's probably no chance for loading errors!
Very cool!
I never knew there was a single rack dishwasher?!
That is so cool!
Wish I could see inside to see how it washes the dishes. There's probably no chance for loading errors!
Very cool!
I remember seeing them in all the Dunkin Doughnuts stores until they all switched over to disposable cups. I would love to have one at home also.
Installing a Window
My next project is to install a window...I am sure there will be abundance of plexiglass in the near future.
Fortunately, I have a spare door for the UM-4 and looking at ways to do a cut-out.
My next project is to install a window...I am sure there will be abundance of plexiglass in the near future.
Fortunately, I have a spare door for the UM-4 and looking at ways to do a cut-out.
hippiedoll
Well-known member
WOWZERS...
"Installing a window"
No way...
That is going to be so AWESOME!
I loves windows!
Can't wait to see when it's all done and the window is installed!
"Installing a window"
No way...
That is going to be so AWESOME!
I loves windows!
Can't wait to see when it's all done and the window is installed!
Robert,
What is the cycle like for your machine? Did it fill and drain just like the home type DW. At Dunkin I would see them load it up, slide in the rack and dump a scoop of detergent on the door and close and turn on. Right out of high school in the mid 70's, I washed dishes while going to college. It was a smaller upscale restaurant and we had a Jackson single rack DW. The cycle was about a 4-5 wash with Eco-Labs Impact detergent and a 2 minute 160 degree rinse with Jet-Dry. Those suckers dried within seconds when you pulled out the rack. I just retired from working in the Disney Resorts Front Desk, I noticed that in the main housekeeping rooms there were Hobart single rack DW's. I looked inside one and looks like they have not used them for years. Hopefully they will end up at property control for sale. I would jump at the chance to buy one.
What is the cycle like for your machine? Did it fill and drain just like the home type DW. At Dunkin I would see them load it up, slide in the rack and dump a scoop of detergent on the door and close and turn on. Right out of high school in the mid 70's, I washed dishes while going to college. It was a smaller upscale restaurant and we had a Jackson single rack DW. The cycle was about a 4-5 wash with Eco-Labs Impact detergent and a 2 minute 160 degree rinse with Jet-Dry. Those suckers dried within seconds when you pulled out the rack. I just retired from working in the Disney Resorts Front Desk, I noticed that in the main housekeeping rooms there were Hobart single rack DW's. I looked inside one and looks like they have not used them for years. Hopefully they will end up at property control for sale. I would jump at the chance to buy one.
First wash uses less water
The dishwasher run cycle is only about 200 seconds (3’ 20”):
0’00” Solenoid drain valve is engaged, motor is running, and water starts running:
0’20” Water turns off
1’45” Motor pauses
1’55” Drain solenoid disengages and opens the drain valve (gravity drain)
2’25” Motor starts
2’30” Drain solenoid engages and water starts filling
2’60” Water turns off (filling takes longer than the wash portion)
3’15” Water valve is activated again (filling of water)
3’20” Motor stop and drain valve disengage (gravity drain)
A couple of interesting observations:
- the first wash uses less water than the rinse,
- the RPM of the cast iron wash arm is slower than the rinse, and
- the drain valve is deactivated when the power to the dishwasher is unplugged (the water dumps - gravity drain).
However , the drain valve doesn’t deactivate when the door opens, and just before the completion of the rinse, the water valve is activated for about a short 5 seconds (like an overflow rinse in a washer).
The dishwasher run cycle is only about 200 seconds (3’ 20”):
0’00” Solenoid drain valve is engaged, motor is running, and water starts running:
0’20” Water turns off
1’45” Motor pauses
1’55” Drain solenoid disengages and opens the drain valve (gravity drain)
2’25” Motor starts
2’30” Drain solenoid engages and water starts filling
2’60” Water turns off (filling takes longer than the wash portion)
3’15” Water valve is activated again (filling of water)
3’20” Motor stop and drain valve disengage (gravity drain)
A couple of interesting observations:
- the first wash uses less water than the rinse,
- the RPM of the cast iron wash arm is slower than the rinse, and
- the drain valve is deactivated when the power to the dishwasher is unplugged (the water dumps - gravity drain).
However , the drain valve doesn’t deactivate when the door opens, and just before the completion of the rinse, the water valve is activated for about a short 5 seconds (like an overflow rinse in a washer).
