CCS Fan Assembly

SymptomProblemSolution

CCS fan motor leaks.

Case drain line crimped, not connected to low-pressure port, or connected to wrong port with high back-pressure.

Repair fan motor.

To avoid future failures, be sure to connect drain line to low-pressure (sump) return on tractor or place hose in storage position. Case drain must have less than 172 kPa (1.72 bar) (25 psi).

 

CCS fan motor seal leaking.

Replace seal. See your John Deere dealer.

 

Case drain line pulled out of coupler on tractor.

Check hose routing of hydraulic hoses across hitch. Ensure that case drain is properly attached to tractor. Repair fan motor.

CCS fan not turning.

SCV not in continuous detent position.

Place SCV in retract detent position.

 

Low hydraulic oil level.

Check and fill reservoir.

 

Tractor control valve return line not open.

Cycle control lever in opposite direction momentarily.

 

CCS fan motor seal leaking.

Replace seal. See your John Deere dealer.

 

Faulty CCS fan motor.

Repair or replace motor. See your John Deere dealer.

 

Faulty CCS flow control valve.

Repair or replace valve. See your John Deere dealer.

 

Row unit switch is depressed.

Lower machine to ground and adjust switch as needed.

 

Row unit switch faulty.

Replace switch.

 

Flow control valve incorrectly set.

Increase flow control setting.

 

Return hose not fully engaged in SCV outlet.

Check connections.

CCS fan vibrates.

Dirty fan blades.

Clean fan.

 

Broken fan blades; fan out of balance.

Replace fan assembly.

CCS fan surges.

Flow control valve incorrectly set.

Adjust flow control valve or replace.

Premature CCS fan motor seal failure.

CCS case drain not connected to sump.

Connect case drain hose to sump. Case drain must have less than 172 kPa (1.72 bar) (25 psi).

Tank pressure too low.

CCS pressure gauge was not zeroed.

Zero CCS pressure gauge.

 

CCS pressure gauge hose not connected or damaged.

Reconnect or replace hose.

 

Tractor flow control set too low.

Increase valve setting.

 

Faulty CCS control valve.

Repair or replace valve. See your John Deere dealer.

 

Machine flow control valve set incorrect.

Increase valve setting.

 

Tractor pressure too low.

Check and repair tractor hydraulic system. See your John Deere dealer.

 

CCS fan motor seal leaking.

Replace seal. See your John Deere dealer.

 

Faulty CCS fan motor.

Repair or replace motor. See your John Deere dealer.

 

CCS fan turning backward.

Check valve removed from return line. Check and correct hose connections to tractor.

 

Excessive air leakage from tank.

Install lids.

 

Pressure gauge broken.

Repair or replace gauge.

Pressure gauge does not zero.

Gauge not adjusted.

Zero gauge. See ZEROING CCS FAN PRESSURE GAUGE in Service section.

 

Gauge damaged.

Replace gauge.

 

Moisture in gauge.

Dry out gauge.

 

Suction hose plugged.

Clean or replace hose as needed.

CCS fan turning on and off while going though the field.

Frame height too high causing the row unit switch to open and close.

Adjust frame height. See ADJUST FRAME HEIGHT in your Operator Manual.

 

Row unit fan switch misadjusted.

Adjust switch. See SETTING CCS ROW UNIT FAN SWITCH in Service section.

AG,OUO6023,1197-19-20090501