Instruction Manual

2000 Series Tractors
66
Sluggish operation,
hydraulic noise
Dragging brake Brake caliper not releasing Check the brake pedal and link-
age to the brake caliper. Check
brake adjustment. Check cali-
per operation.
Entrained air in sys-
tem
Damaged pick-up tube or fit-
ting leak at end of pick-up
tube.
Remove pick-up tube for
inspection and replace O-ring
seal. Bottom O-ring leak will
leave a puddle under the trac-
tor. Top fitting leak will allow air
to be drawn-in.
Low fluid level Check dipstick. Symptoms may
be more pronounced on a
grade.
Air leak near suction side of
charge pump. (Unlikely sce-
nario)
Charge pump housing may
show fluid leak
System not purged after fluid
service
Purge system.
Charge relief valve leaking Remove and inspect charge
relief valve
Bypass valve leaking Check linkage and plunger
movement on the by-pass
valve. Remove to inspect if nec-
essary.
Charge check valve leaking Typically this will cause symp-
toms in one direction only. A
leaky Forward charge check
valve will effect performance in
Reverse. A leaky Reverse
charge check valve will cause
performance issues in For-
ward. NOTE: The forward
charge check valve is on the
right side of the hydro. pump.
The reverse charge check valve
is on the left side of the hydro.
pump.
Symptom Root problem Mechanical cause Recommended action