-12-
142664 - 5900 Series (24-November-2020)
Troubleshooting
Dozer Falls Down In
Transport.
Lift cylinder hydraulic circuit not connected
correctly.
Trace your hoses from front to back of tractor, making sure angle
circuit connected to rear relief valve, not lift circuit.
GENERAL TROUBLESHOOTING
SYMPTOM
PROBLEM
SOLUTION
Dozer Angle Won’t
Hold.
Excessive loading of dozer.
Reduce amount of material pushing. Equipped with safety angle
relief valve, pressure exceeded.
Excessive impact on dozer.
Reduce speed of impact on high load. Equipped with safety
angle relief valve, pressure exceeded.
Cutting Edge Wearing
Excessively In Center
Of The Dozer.
High downward force of dozer in contact
with crown of road.
Adjust skid shoes to prevent cutting edge contact with road
crown.
Change operation of the dozer to prevent running on crown of
road.
Cutting edge wearing
excessively at ends of
dozer.
High downward force on ends of dozer.
Adjust skid shoes to prevent contact.
Change operation to prevent this type of contact.
Breaking cutting
edge bolts.
Cutting edge bolts not properly torqued.
Under torqued bolts allows impact to break bolts.
Over torqued bolts can fail from too much tension loading.
Torque 5/8” Gr.8 bolts to 225 lb-ft
Dozer won’t angle or
will not come back
from full angle.
Hoses not properly coupled in valve stack.
Remove and re-install hoses into valve stack.
Dozer not following
ground contour.
Tilt circuit not allowed to float.
Float hydraulic tilt circuit.
Rear main frame is out
of position (off to the
side) during mounting.
Rear main frame guide plates are not
aligned with side brackets.
Slightly activate the blade angling circuit a small amount to
bring the rear of the main frame into proper position.
