Separator

Slugging or Overloading of single tine separator.

Engine not up to correct speed.

See your John Deere dealer.

Variable speed single tine separator belt is slipping at slow speed.

Adjust sheave gap.

Concave to single tine separator spacing too close or too wide.

Adjust concave spacing.

Single tine separator speed too slow for crop.

Increase separator speed.

Too much material entering separator.

Reduce ground speed.

Backfeeding of Feed Accelerator.

Single tine separator speed too slow for crop.

Increase separator speed.

Accelerator speed in slow speed position.

Change accelerator speed to high speed position.

Feed accelerator wings on smooth wear strip.

Switch to serrated wings.

Dirt and sap buildup on feed floor.

Clean.

AG,OUO1035,1636 -19-24JAN00-1/6

Grain Not Threshed.

Crop not ready to thresh.

Test moisture of crop before threshing.

Single tine separator speed too slow for crop.

Increase separator speed enough to do a good job of threshing but do not increase speed to the point where grain cracks.

Concave spacing not even from front to rear.

Adjust to specifications.

Concave spacing too wide.

Close single tine separator to concave spacing until tight bar ticks, to increase threshing action.

Uneven feeding to single tine separator.

Check feeder conveyer chain tension and float in feeder house.

Not enough material entering combine for proper threshing action.

Increase ground speed.

Too Much Cracked Grain in Tank.

Single tine separator speed too fast for crop.

Decrease single tine separator speed just enough to stop grain cracking, but still do a good threshing job.

Concave spacing too close.

Open concave just enough to stop cracking.

Feed beater speed too fast for crop.

Decrease feed accelerator speed by switching to low speed drive.

Too much clean grain in tailings, causing grain to crack when rethreshed.

Open sieve slightly to reduce tailings.

Not enough straw entering combine.

Increase ground speed.

Dented auger housings or bent auger shafts cracking grain between flights and housings.

Remove dents from auger housings and/or straighten bent auger shafts.

Serrated beater wings.

Install smooth beater wing strips.

AG,OUO1035,1636 -19-24JAN00-2/6

Separator Grain Loss

Separator overloaded due to incomplete threshing or late threshing at the concave.

Reduce single tine separator to concave spacing and/or increase separator speed to increase threshing action.

Almost No Chaff in Tailings. Grain Tank Very Clean.

Fan speed is too high and/or chaffer not open far enough.

Reduce fan speed and/or increase chaffer opening.

Some Chaff in Tailings. Grain Tank Clean.

Sieve is closed too tight.

Open sieve.

Heavy Chaff in Tailings. Grain Tank May Range from Good to Dirty.

Sieve is closed too tight and fan is too slow.

Open sieve and increase fan speed.

Too Much Trash (Ground Up Weeds) in Tailings

Chaffer too far open for weedy conditions.

Close chaffer.

Single tine separator too fast or concave too tight.

Reduce separator speed and/or increase concave spacing.

Dirty Grain Tank (Unthreshed Heads).

Sieve too far open.

Close sieve.

Single tine separator not threshing enough.

Increase separator speed and/or decrease concave spacing.

Dirty Grain Tank (Mostly Chaff).

Fan speed too slow.

Increase fan speed.

Cob deflector installed.

Remove cob deflector.

Damaged clean elements.

Cob deflector not installed.

Install cob deflector.

Loss of Grain Over Cleaning Shoe (Grain Tank is Clean).

Chaffer closed.

Open chaffer.

Fan speed incorrect.

Adjust fan speed. Check tailings, losses and grain tank.

High Grain Losses (Occurs at Low Feed Rates or High Feed Rates).

Fan speed too fast.

Reduce fan speed.

Chaffer not open far enough.

Open chaffer.

AG,OUO1035,1636 -19-24JAN00-3/6

High Grain Losses (Occurs at High Feed Rates Only).

Fan speed too low.

Increase fan speed.

VISIONTRAK Cleaning Shoe Sensors Plugging Up with Trash.

Trash is getting caught between plastic fingers and sensor.

Remove fingers over sensor.

Speed Range Selector Will Not Go in Reverse.

Bent or broken pars in control linkage.

Repair or replace as required.

Linkages Binding.

Frozen or worn ball joints on control cable.

Lubricate or replace.

Bell crank or pivots binding.

Lubricate or replace.

Control cable kinked or frozen.

Replace if needed.

System Overheats.

Oil cooler or radiator plugged.

Blow air through core and clean.

Lack of charge oil flow.

See your John Deere dealer.

Engine fan belt slipping or broken.

Check for worn belt.

Plugged oil filter.

Change filter.

Exceeding relief valve pressure.

Shift to lower gear.

Relief valve stuck closed.

See your John Deere dealer.

By-pass valve fails to close.

See your John Deere dealer.

High Oil Loss.

Loose connections or leaking hydraulic lines, hoses or O-rings.

Tighten connections or replace damaged lines, hoses or O-rings.

Oil leaking into PTO gearbox.

Replace hydraulic/steering pump.

AG,OUO1035,1636 -19-24JAN00-4/6

Combine Will Not Move Forward or Reverse.

Transmission out of gear.

Shift transmission.

Low on oil.

Check for leaks and correct. Fill reservoir.

Air leak in system.

Tighten connections.

Control linkages broken or loose.

Tighten loose linkages or replace as needed.

Lack of charge flow or charge pressure.

See your John Deere dealer.

Plugged filter.

Change filter.

Exceeding maximum operating pressure setting.

Shift to lower gear.

Drive system unable to build up pressure.

See your John Deere dealer.

Relief valve open.

See your John Deere dealer.

Transmission Hard to Shift or Will Not Shift.

Speed range control lever not in neutral.

Move control lever to neutral.

Transmission shift linkage out of adjustment.

Adjust transmission shift linkage.

Damaged, dirty, rusty or pinched shift cable.

Inspect, clean, adjust or replace cable.

Internal transmission problem.

See your John Deere dealer.

AG,OUO1035,1636 -19-24JAN00-5/6

Ground Travel Speed Erratic.

Low oil.

Check for leaks and correct. Fill reservoir.

Plugged filter.

Change hydro charge filter.

Exceeding maximum operating pressure setting.

Shift to lower gear or engage 4-wheel drive.

Speed control lever creeps toward neutral.

See your John Deere dealer.

System unable to keep charge pressure.

See your John Deere dealer.

Combine Will Not Stop When Speed Range Selector is in "N" Neutral Position.

Control cable out of adjustment.

Adjust cable for neutral position.

Lack of Power or Lost Power. Combine Not Responding to Speed Range Selector.

Low on oil.

Check for leaks and correct. Fill reservoir.

Plugged filter.

Change hydro charge filter.

Lack of charge flow or charge pressure.

See your John Deere dealer.

Dirty fuel filter(s).

Replace filter(s).

Drive system unable to keep or build up pressure.

See your John Deere dealer.

AG,OUO1035,1636 -19-24JAN00-6/6