Hydrostatic Ground Drive

Speed Range Selector Will Not Go In Reverse.

Bent or broken parts 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.

Hydrostatic drive units leaking.

See your John Deere dealer.

HX,AG,SF7234 -19-15APR98-1/3

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.

HX,AG,SF7234 -19-15APR98-2/3

Ground Travel Speed Erratic.

Low oil.

Check for leaks and correct. Fill reservoir.

Oil leak from lines.

Tighten line connections and clamps or replace as needed.

Plugged filter.

Change filter.

Exceeding maximum operating pressure setting.

Shift to lower gear.

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 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 filter.

Lack of charge flow or charge pressure.

See your John Deere dealer.

Leaking or broken oil line or connection.

Check and repair as needed.

HX,AG,SF7234 -19-15APR98-3/3