|
Both Wheels Lack Pulling Ability On Grade or Pulling Out Of Ditch
|
Loose or worn controls
|
Check controls.
|
|
|
Field-Road switch in transport position
|
Set switch to FIELD position.
|
|
|
Brakes dragging
|
Check brake calipers for full release.
|
|
|
Faulty relief valves
|
Replace.
|
|
|
Failed motors
|
Replace.
|
|
|
Low charge pressure
|
See "Low Charge Pressure" in this section.
|
|
|
The windrower is not designed to spin the wheels under all conditions
|
See your John Deere dealer if problem becomes excessive.
|
|
|
Hydraulic oil overheated
|
See "Hydraulic Oil Overheats" in this section.
|
|
Both Wheels Will Not Pull In Forward or Reverse
|
Low on oil
|
Check hydrostatic oil level and power wheels.
|
|
|
Tow disconnects still out
|
Engage final drives.
|
|
|
Steering controls worn or loose
|
Check control lever and steering for loose, worn, or broken ball joints and ball joint rods.
|
|
|
Check brakes for full release or binding
|
Remove foreign objects so discs are free to rotate.
|
|
|
Faulty relief valves
|
Replace.
|
|
|
Clogged charge pump suction screen in reservoir
|
Remove and clean screen.
|
|
|
Low charge pressure
|
See "Low Charge Pressure" in this section.
|
|
|
Failed pump
|
Replace.
|
|
|
Broken pump driveline
|
Replace.
|
| Symptom |
Problem |
Solution |
|
One Wheel Does Not Pull in Forward or Reverse
|
Tow disconnect still out
|
Engage final drive.
|
|
|
Steering controls worn or loose
|
Check control lever and steering for loose, worn, or broken ball joints and ball joint rods.
|
|
|
Check brake for full release or binding
|
Remove foreign material so disc is free to rotate.
|
|
|
Failed pump, motor, or final drive
|
See your John Deere dealer.
|
|
One Wheel Develops Pull in Either Forward or Reverse
|
Faulty relief valve
|
See your John Deere dealer.
|
|
Excessive Noise From Drive System
|
FIELD/ROAD switch in transport range
|
Use transport range only on the road.
|
|
|
Brakes noisy
|
See "Dragging Or Overheating" in BRAKES, in this section.
|
|
|
Faulty pump or motor
|
See your John Deere dealer.
|
|
|
Cab mounts defective
|
See your John Deere dealer.
|
|
Windrower Will Not Run Full Speed in Field or Transport
|
Low charge pressure
|
See "Low Charge Pressure" in this section.
|
|
Leaking Seals or Covers On Pumps or Motors
|
Case pressure too high
|
Check for kinked hose or other restrictions in drain lines.
|
|
Low Charge Pressure
|
Plugged charge pump suction screen in reservoir
|
Remove and clean screen.
|
|
|
Low on oil
|
Check for leaks and correct. Fill reservoir.
|
|
|
Malfunctioning priority valve
|
See your John Deere dealer.
|
|
|
Worn charge pump
|
Replace.
|
|
|
Plugged filter
|
Replace filter.
|
| Symptom |
Problem |
Solution |
|
Hydraulic Oil Overheats
|
Low oil supply
|
Fill system with correct oil.
|
|
|
Oil cooler air passages clogged
|
Clean oil cooler.
|
|
|
Clogged hydrostatic filter
|
Replace filter.
|
|
|
Platform drive motor shuttle spool sticking
|
See your John Deere dealer.
|
|
Hydraulic Oil Leak
|
Loose fitting
|
Tighten fitting.
|
|
|
Ruined O-ring on fitting or hose
|
Replace O-ring. Tighten right-angle fittings by hand, then back out to required orientation.
|
|
|
Fitting seal surface scratched or nicked
|
Replace fitting.
|
|
Platform Continues To Run When Disengaged
|
Neutral out of adjustment on drive pump
|
See your John Deere dealer.
|
|
|
Faulty valve cartridge
|
See your John Deere dealer.
|
|
Platform Pump Drive Belt Separates
|
Drive idler or driven sheave out of line
|
See your John Deere dealer.
|
|
|
Idler spring tension too low
|
Adjust spring. (See ADJUSTING PLATFORM DRIVE BELT in Service-Miscellaneous section.)
|
|
Platform Drive Will Not Engage
|
Faulty switch, solenoid, or valve cartridge
|
See your John Deere dealer.
|
|
|
Broken pump drive belt idler spring
|
Replace spring.
|
|
|
Failed pump drive belt
|
Replace belt.
|
|
Platform Drive Stops
|
Faulty operator presence seat switch
|
Replace switch.
|
|
Platform drive speed too slow.
|
Low charge pressure
|
See your John Deere dealer.
|