New Holland Boomer 37 in DPF Shutdown Mode

[thclimer]

Quick question guys. I been following this thread and am about to gut the can. Is the constant 12v going to the newly hotwired/bypassed solenoid from my ignition switch going to cause problems? I'm seeing in posts a 5v source is required . So I'm confused. I don't want it getting fried and suddenly getting stuck open or closed. Thank you

I believe the discussion about the 5 volts was in reference to the ECU.

If all your doing is suppling 12 volts to a relay to interrupt the starting circuit as many others of us have done to eliminate the resistance with all the safety switches the ECU will not be effected. This starting circuit modification can be found here (on page 6 there is a PDF attachment drawing of the circuit) there are also other threads about this modification:

TC33D wont start

 

[mp40oli]

Thanks for the replies. I discovered that a pickle fork and mini sledge guts the rear can in less than a minute . Havnt hooked up the new throttle/ governor cable yet but I did fire it up. Someone mentioned earlier that once the glow plugs are warm and turning the key to crank it it won't turn over. That is correct . The key needs to be turned/ recycled into the OFF position first and then turned again directly to start position. It fires right up and what a enormous cloud of black soot blew out . Wow. The motor went directly to max rpm since I havnt touched the governor yet . That's predictable. Once I get the cable on I'll post an update. So far this is promising.

 

[Craigercj]

Quick question guys. I been following this thread and am about to gut the can. Is the constant 12v going to the newly hotwired/bypassed solenoid from my ignition switch going to cause problems? I'm seeing in posts a 5v source is required . So I'm confused. I don't want it getting fried and suddenly getting stuck open or closed. Thank you

Nope, that's a 12v circuit. May want a 5 amp fuse, since that's what was originally done. The 5v circuit is the rack position sensor, the 3 wire harness coming out of the solenoid.

"1. The 5 amp injection pump linear solenoid fuse sends current to the injection pump linear solenoid. When the
solenoid receives current, the solenoid opens and allows fuel to flow to the injection pump."

*boomer 47*

 

[mp40oli]

Ok. On my boomer 33 I got 2 wires from solenoid . So I grounded the black and ran positive to key. So just to be clear your saying put a 5amp fuse from my key to the solenoid. Correct? Is this to limited the rod position depth ?

 

[mp40oli]

Here's the update as of today. Tractor runs great. I ran the new throttle cable from the rear facing side of the governor. So it pulls, not pushes. I slid a rubber fuel line over the cable housing where I clamped it down on the black pipe.. This protects the cable and easy to adjust. High rpm adjustment screw was not touched. Only low screw . I set idle at 1000rpm. . I gave the tractor a good run across the farm and did some work . Power is excellent. Dpf and service warning lights naturally still on. That's not a concern..

 

[Craigercj]

Ok. On my boomer 33 I got 2 wires from solenoid . So I grounded the black and ran positive to key. So just to be clear your saying put a 5amp fuse from my key to the solenoid. Correct? Is this to limited the rod position depth ?

Put a 5 amp fuse inline on the power for protection. These solenoids are like $2,000. But you can probably replace it with a much much cheaper fuel shutoff solenoid from the pre tier 4 engine.

I believe supplying 12v supply to the 2 wire circuit fully opens (retracts?) the plunger, effectively taking it out of the equation of the the throttle linkage/governor control of the fuel rack. This is the opposite of how it is stock - the mechanical linkage is pinned at wide open to take it out of the equation between the linear solenoid/governor. Removing power extends the plunger to push the rack into the full fuel off position. There's no mechanical fuel shutoff on these engines, the pre tier 4 versions have a solenoid in the same spot but it is just fuel on/off.

 

[trukker]

I have a ls 3037. Likely to do DPF removal soon. Worried about burning up the solenoid. LS manual says 12v to the solenoid over a minute can cause damage. Also says variation adjusts engine speed. (see attached page)
If normal solenoid function provides varied response from ECU what is optimal voltage/current to have cable throttle control and not damage solenoid. Seems like most have not experienced damage to solenoid with it connected to ignition. Will likely go this route unless i hear different soon!

 

[Craigercj]

I have a ls 3037. Likely to do DPF removal soon. Worried about burning up the solenoid. LS manual says 12v to the solenoid over a minute can cause damage. Also says variation adjusts engine speed. (see attached page)
If normal solenoid function provides varied response from ECU what is optimal voltage/current to have cable throttle control and not damage solenoid. Seems like most have not experienced damage to solenoid with it connected to ignition. Will likely go this route unless i hear different soon!

You could replace the solenoid with a simple shut off solenoid, I may do this. This is the new holland part number for the pre-tier 4 ISM engine: SBA185206083

Amazon.com

 

[trukker]

Thanks for info. Will check it out.

 

[smitty2590]

Hi im new here and read through all of this thread. So i already took off the DPF and remove all the insides today on my 2016 Workmaster 37, just ordered the new cable. Have not done the wiring yet but know what to do. My question is what all alarm lights will be on after doing this and is the only solution to just unplug the bulbs on the cluster or is there something else to be done? Also instead of cutting the wires I found the plug on amazon and figured i can just tape up the stock plug and run the new one with the wire going to the ignition and other to ground. I thought a while back I had read there is a way to make it so every time you turn on the key it resets the regen clock but I'm not finding that now, if someone knows how to do this please direct me on where to read. Thank you