Traction Circuit Problems (GreensPro 1260)
Problem
Possible Cause
Corrective Action
The hydraulic fluid is very cold.
Allow the hydraulic fluid to warm by
safely operating the machine at rest.
The hydraulic fluid level in the hydraulic
tank is low.
Adjust the hydraulic fluid level.
The hydraulic pump tow (bypass) valve
is open or damaged.
Close or replace the hydraulic pump
bypass valve.
The charge pressure is low.
Verify charge pressure; refer to
Hydraulic Pump Charge Pressure Test
in Chapter 5 – Hydraulic System.
One or more orifice or screen in the
hydraulic pump is partially obstructed
or damaged.
Clean or repair the hydraulic pump
passages.
A hydraulic pump relief valve is leaking
or damaged.
Verify hydraulic pump relief valve
operation; refer to Hydraulic Pump
Flow and Relief Pressure Test in
Chapter 5 – Hydraulic System.
The hydraulic pump is worn or
damaged.
Verify hydraulic pump operation; refer
to Hydraulic Pump Flow and Relief
Pressure Test in Chapter 5 – Hydraulic
System.
The hydraulic drive motor is worn or
damaged.
Repair or replace the hydraulic drive
motor.
The traction response is sluggish.
Note:
If a traction circuit component
has internal wear or damage, it
is possible that the other traction
components are also damaged.
The motion control linkage is incorrectly
adjusted, disconnected, binding, or
damaged.
Verify motion control operation and
repair or adjust as necessary; refer
to Adjusting the Control Pedal Return
to Neutral Mechanism in Chapter 5 –
Hydraulic System.
The hydraulic pump relief valves are
leaking or damaged.
Verify hydraulic pump relief valve
operation; refer to Hydraulic Pump
Flow and Relief Pressure Test in
Chapter 5 – Hydraulic System.
The traction system operates in one
direction only.
The hydraulic pump is worn or
damaged.
Verify hydraulic pump operation; refer
to Hydraulic Pump Flow and Relief
Pressure Test in Chapter 5 – Hydraulic
System.
Troubleshooting: Traction Circuit Problems (GreensPro
Page 3–6
GreensPro
™
1240/1260
14211SL Rev A
Содержание GreensPro 1240
Страница 4: ...Reader Comments Page 4 GreensPro 1240 1260 14211SL Rev A...
Страница 8: ...Preface Page 8 GreensPro 1240 1260 14211SL Rev A...
Страница 14: ...Safety Safety and Instructional Decals Page 1 6 GreensPro 1240 1260 14211SL Rev A...
Страница 30: ...Specifications and Maintenance Special Tools Page 2 16 GreensPro 1240 1260 14211SL Rev A...
Страница 38: ...Troubleshooting Traction Circuit Problems GreensPro 1260 Page 3 8 GreensPro 1240 1260 14211SL Rev A...