| Author |
 Topic Search  Topic Options
|
Blustery Knoll Farm 
Bronze Level
Joined: 04 Dec 2017
Location: Northern IL
Points: 117
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: 7020 heater control
Posted: 24 Jan 2018 at 9:20pm |
|
My 7020 blows lukewarm air out of the heater. And the temperature control knob is stuck. I pulled the cab roof off, and it looks like there's supposed to be a cable hooked up to the little gear wheel. No sign of it though.
Where's the actual location of the control valve? It seems like it is likely stuck part way open.
|
 |
|
Sponsored Links
|
|
|
Orange Blood
Orange Level
Joined: 29 Nov 2010
Location: ColoradoSprings
Points: 4053
|
Post Options
Thanks(0)
Quote Reply
Posted: 24 Jan 2018 at 10:18pm |
On the right hand side (seated) of the heater core, there should be a 90 deg. fitting with a metal plate on the end of it. there should be a little lever that should have a cable attached to it, that would run over to the heater knob. Lot of "shoulds"  There may also be a valve up around the engine somewhere. The heater valve that should be hooked up, was notorious for not shutting off completely, thus making the AC nearly ineffective, so check for another valve in the lines, (farmer added)
|
|
Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
|
|
Blustery Knoll Farm
Bronze Level
Joined: 04 Dec 2017
Location: Northern IL
Points: 117
|
Post Options
Thanks(0)
Quote Reply
Posted: 24 Jan 2018 at 11:15pm |
|
I just see two rubber hoses connected to the heater core that go down into the cab pillar.
|
|
Lonn
Orange Level
Joined: 16 Sep 2009
Location: Назарово,Russia
Points: 29817
|
Post Options
Thanks(0)
Quote Reply
Posted: 25 Jan 2018 at 6:51am |
|
No valve up there? Then there must be a farmer added one down near the engine.
|
|
-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot
|
|
Blustery Knoll Farm
Bronze Level
Joined: 04 Dec 2017
Location: Northern IL
Points: 117
|
Post Options
Thanks(0)
Quote Reply
Posted: 25 Jan 2018 at 2:02pm |
|
Guess I need to start looking around. Where do the heater hoses connect to the engine?
|
|
Ron(AB)
Orange Level
Joined: 27 Dec 2009
Location: Alberta
Points: 962
|
Post Options
Thanks(0)
Quote Reply
Posted: 25 Jan 2018 at 6:17pm |
|
Thermostat housing and water pump usually..
|
|
fourthgeneration
Bronze Level
Joined: 03 Jan 2017
Location: ohio
Points: 170
|
Post Options
Thanks(0)
Quote Reply
Posted: 26 Jan 2018 at 8:04am |
|
Hy-Capacity, AP Air, tractor joes sell the control valve.
|
|
Unit3
Orange Level
Joined: 17 Oct 2009
Location: NC Iowa
Points: 5605
|
Post Options
Thanks(0)
Quote Reply
Posted: 26 Jan 2018 at 12:11pm |
|
One other place to look is to check that a hose is not pinched shut behind the battery tray. It happened to me.
|
|
2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C
|
|
Blustery Knoll Farm
Bronze Level
Joined: 04 Dec 2017
Location: Northern IL
Points: 117
|
Post Options
Thanks(0)
Quote Reply
Posted: 29 Jan 2018 at 7:23pm |
|
I can't find a pinched hose or valve anywhere. With my IR thermometer, I get 140° out of the thermostat housing, and under 100° on the return hose to the water pump with the fan on full speed. This was just with the tractor idling on a 25° day.
|
|
Lonn
Orange Level
Joined: 16 Sep 2009
Location: Назарово,Russia
Points: 29817
|
Post Options
Thanks(0)
Quote Reply
Posted: 30 Jan 2018 at 7:02am |
|
You won't get good heat up in the cab running tractor running at idle. Not enough push to get coolant up that far. Get yourself a new valve at the control in the cab or install shut off valves correctly at engine so you can shut it off in summer.
|
|
-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot
|
|
Tim NH
Orange Level Access
Joined: 16 Oct 2012
Location: Lancaster NH
Points: 1126
|
Post Options
Thanks(0)
Quote Reply
Posted: 30 Jan 2018 at 5:41pm |
|
I found on the 5/8 heater hose. A 3/4 Pex ball valve fits real tight in the hose. Then use regular hose clamps. I took the handle off and put it in the tool box. Tim
|
|
1950 WD 1959 D14 1955 WD45 1976 7000 B 207
|
|
