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Discussion Starter · #1 ·
I have a 9770 that the dealer just swapped 4WD from 07 9760 last week, and now when 4WD is engaged in high and you either turn right or get on the hydro a little it automaticaly shifts to low speed 4WD and then sends an error code( cc#204 left motor high refer to diagnostics and repair) I've called the dealer but have got no reply as to why it is doing this, any suggestions maybe a hose in the wrong spot? they say it has been calibrated also. TIA Azcutter

Premium Member
1,236 Posts
Re: 9770 4WD

I seen this some time ago and finally found it, hope this helps.

Number: 79373

Solution Summary: Can the Four-Wheel Drive Motors Be Swapped from a 60 Series Combine to a 70 Series Combine?

Publication Date: Jan 18 2008


**Paper copies of solutions may not be the most current solutions**

Complaint or Symptom :
Customer has traded in a 60 Series combine for a 70 Series combine and would like to move the four-wheel drive motors to the 70 Series machine. Can this be done?

Problem or Situation :
There is no information in the Ag Sales Manual that talks about this conversion.

Solution :
Four-wheel drive bundles, BH90115 and BH90116, can be transferred to 70 Series machines with a few additional parts.

Part Number

70 Series 4WD Harness

Case drain hose (Replaces AH153932)

Forward pressure hydro hose (9670–9870 Only)

The following cab address will need to be changed to show that the Four-wheel drive option is install. , CAB 113 - _ X X X X n X X DISPLAY/MODIFY: Four wheel drive option 0 = Disabled 1 = Enabled

Instruction, H206890, can be downloaded from the Field Installation Instruction website for assistance with hose routing.

Additional Information :
The parts listed above are now included in bundles, BH90115 and BH90116.


9770STS, 9570STS, 9560iSTS, S690, S560, 9660STS, 9860STS, 9670STS, 9880STS, 9760STS, 9870STS, 9880HM, 9560STS


REAR, POWER, MOTOR, ASSIST, PTS, AH226745, AH153932, H206890, AH228793, AH225307, BH90115, BH90116, COMB PT, 5956, 5955
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