TM 5-3805-260-24
Disassembly and Assembly
TROUBLESHOOTING
The following guide covers the steering axle, spring and cable assembly, and draftframe. All other systems of the
Sectionalized vehicles are similar to the Nonsectionalized Tractor-Scraper, and are covered in Chapters 1 through 4.
PROBLEM
PROBABLE CAUSE
RECOMMENDED ACTION
STEERING AXLE
Too much force needed to turn steering wheel.
1.
The pump operation is not correct.
2.
Dirt in the steering system.
3.
Steering gear operation is not correct.
(a)
Check pump, repair or replace as
necessary.
(b)
Bleed the steering system.
(c) Check steering gear, repair or adjust as
necessary.
Tractor does not turn when steering wheel is slowly
turned.
1.
The oil level of the tank is low.
2.
There is air In the steering system.
3.
The pump operation is not correct.
4.
Dirt in the steering system.
5.
Steering gear operation is not correct.
(a)
Fill oil tank as necessary.
(b)
Bleed the steering system.
(c)
Check pump, repair or replace as
necessary.
(d)
Bleed the steering system.
(e)
Check the steering gear, repair or
replace as necessary.
The temperature of the oil is too hot.
1.
The viscosity of the oil is wrong.
2.
The steering relief valve Is not set correctly. See
SPECIFICATIONS, page 1-55.
PROBLEM
PROBABLE CAUSE
RECOMMENDED ACTION
3.
There is a restriction in an oil passage.
4.
The pump has too much wear.
(a)
Replace with oil of the proper viscosity.
(b)
Adjust valve.
(c)
Bleed the steering system.
(d)
Check pump, repair or replace as
necessary.
The output of the steering pump is low.
1.
The oil level of the tank is low.
2.
The viscosity of the oil is wrong.
3.
The pump has too much wear.
(a)
Fill oil tank as necessary.
(b)
Replace with oil of the proper viscosity.
(c)
Check pump, repair or replace as
necessary.
The pressure of the oil is low.
1.
The steering relief valve opens at an oil pressure
that is lower than the pressure in
SPECIFICATIONS, page 1-55.
2.
The pump has too much wear.
(a)
Adjust valve.
(b) Check pump, repair or replace as
necessary.
5-24