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#30452 - 01/08/21 10:14 PM Dover I2 question  
Joined: Sep 2014
Posts: 153
BRG Offline
member
BRG  Offline
member

Joined: Sep 2014
Posts: 153
I have heard several horror stories about the I2 up leveling adjuster. I took a call on an old DMC that will not run up. The gauge port between the pump and the valve reads about 40psi when it's running. Looks like it is trying to run but the thing sits there. The coils are good as they are energizing but the thing sits there.

#30453 - 01/08/21 10:18 PM Re: Dover I2 question [Re: BRG]  
Joined: Jan 2019
Posts: 80
M2RE Offline
Chilling
M2RE  Offline
Chilling

Joined: Jan 2019
Posts: 80
Does it run in inspection?

#30454 - 01/08/21 11:10 PM Re: Dover I2 question [Re: BRG]  
Joined: Feb 2013
Posts: 757
john jay Offline
old hand
john jay  Offline
old hand

Joined: Feb 2013
Posts: 757
ohio
If the valve or MR is cold, you may need to run till it warms up. I have had that happen a number of times.

#30456 - 01/09/21 01:00 AM Re: Dover I2 question [Re: BRG]  
Joined: May 2011
Posts: 330
ABE Offline
Mechanic
ABE  Offline
Mechanic

Joined: May 2011
Posts: 330
If that leveling adjuster screen is plugged up that's exactly what will happen. The screen is so fine your better off just replacing it, I wouldn't even try to clean it. All our guys carry a spare one in their trucks its such a common occurrence.

#30457 - 01/09/21 04:16 AM Re: Dover I2 question [Re: BRG]  
Joined: Dec 2010
Posts: 566
elmcannic Offline
addict
elmcannic  Offline
addict

Joined: Dec 2010
Posts: 566
S. Central Utah
On this DMC, check for broken shunt wires on the TSL limit switch assy. If it’ll run up on INSP but won’t move up at all on auto, that’s classic TSL symptom.
True also is the clogged up leveler screen.

#30458 - 01/09/21 04:30 PM Re: Dover I2 question [Re: BRG]  
Joined: Dec 2015
Posts: 1,529
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 1,529
Local 18
Definitely sounds like the screen is clogged. Do anything but tear the screen off! I hope that sounds as ridiculous to all of you as it is but you would be surprised how often I find a car with these symptoms and go to replace the part only to find someone has just ripped the screen off. Pretty much screwed at that point. Best just to keep them on the truck.

#30459 - 01/09/21 05:17 PM Re: Dover I2 question [Re: BRG]  
Joined: Sep 2014
Posts: 153
BRG Offline
member
BRG  Offline
member

Joined: Sep 2014
Posts: 153
Thanks, I will check all of the possible causes mentioned. The machine room is quite warm so that one has been eliminated.

#30462 - 01/10/21 01:04 AM Re: Dover I2 question [Re: BRG]  
Joined: May 2015
Posts: 71
TC7 Offline
journeyman
TC7  Offline
journeyman

Joined: May 2015
Posts: 71
Also will reduce leveling speed if O Ring on up leveling adjuster is leaking

#30465 - 01/10/21 04:20 PM Re: Dover I2 question [Re: BRG]  
Joined: Dec 2015
Posts: 1,529
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 1,529
Local 18
God point, with bad o-rings it can also turn itself out on its own until you have no up level speed. If you can turn it by hand the o-rings need to be replaced.

#30472 - 01/11/21 04:56 PM Re: Dover I2 question [Re: BRG]  
Joined: Sep 2014
Posts: 153
BRG Offline
member
BRG  Offline
member

Joined: Sep 2014
Posts: 153
Turns out there were 2 broken wires and a broken contact. Thanks for the help, was not looking forward to pulling the pump and I learned a little about Dover equipment t.

#30473 - 01/11/21 08:47 PM Re: Dover I2 question [Re: BRG]  
Joined: Feb 2013
Posts: 757
john jay Offline
old hand
john jay  Offline
old hand

Joined: Feb 2013
Posts: 757
ohio
That doesn't compute with the original post. If the coils were energized the car should move up; if it wasn't moving with energized coils, it indicates a valve issue. Cannot understand how the broken wires caused a hydraulic issue.


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