MT86H
Operation
and
Maintenance
Manual
110
Common
faults
Causes
Troubleshooting
methods
High
oil
temperature
1.
Oil
pipe
is
bent
2.
Oil
passage
is
blocked
1.
Clean
or
replace
it
2.
Dredge
oil
passage
Run
‐
off
1.
Steering
shaft
has
jammed
2.
Steering
valve
is
asymmetric
3.
Flow
of
oil
pump
is
excessive
4.
Oil
is
too
dirty
and
steering
valve
cannot
return
immediately
5.
Wear
or
pressure
of
tires
on
both
sides
differs
greatly
6.
Bubbles
exist
in
oil
and
direction
is
unstable
7.
One
front
wheel
(braking
non
‐
return)
is
blocked
1.
Check
jamming
position
and
check
if
input
axle
is
subjected
to
radial
shear
2.
Regulate
or
replace
valve
assembly
3.
Regulate
or
replace
oil
pump
4.
Clean
and
change
oil
5.
Replace
tire
or
inflate
6.
Check
and
exhaust
air
7.
Maintain
brake
Jitter
and
drift
1.
Air
invades
into
oil
passage
2.
Oil
level
of
oil
tank
is
too
low,
and
oil
pump
sucks
air
3.
Steering
system
connections
are
loose
or
worn
severely
4.
Flow
of
oil
pump
is
too
low
5.
Steering
gear
control
clearance
is
large
6.
Steering
gear
mounting
bolt
is
loose
7.
Tire
pressure
is
insufficient
or
pressure
of
tires
on
both
sides
differ
8.
Tire
is
worn
severely
or
wear
is
uneven
1.
Identify
leakage
and
exhaust
air
2.
Identify
leakage,
refill
oil
and
exhaust
air
3.
Maintain
or
replace
connections
4.
Regulate
or
replace
it
5.
Adjust
clearance
6.
Fasten
it
7.
Inflate
8.
Replace
it
Abnormal
sound
of
steering
1.
Air
invades
into
oil
passage
2.
Oil
level
of
oil
tank
is
too
low
3.
System
inlet
and
outlet
pipes
are
bent,
and
oil
passage
is
blocked,
etc.
4.
Displacement
of
oil
pump
is
unstable
5.
Steering
control
valve
performance
is
poor
1.
Check
air
leakage
position
and
exhaust
air
2.
Identify
leakage
and
refill
oil
3.
Dredge
oil
passage
4.
Replace
oil
pump
5.
Remove
or
replace
it
Summary of Contents for MT86H
Page 9: ...MT86H Operation and Maintenance Manual 1 Chapter I Safety ...
Page 10: ...MT86H Operation and Maintenance Manual 2 ...
Page 18: ...MT86H Operation and Maintenance Manual 10 ...
Page 19: ...MT86H Operation and Maintenance Manual 11 Chapter II Product Introduction ...
Page 20: ...MT86H Operation and Maintenance Manual 12 ...
Page 25: ...MT86H Operation and Maintenance Manual 17 Chapter III Operation ...
Page 26: ...MT86H Operation and Maintenance Manual 18 ...
Page 64: ...MT86H Operation and Maintenance Manual 56 ...
Page 142: ...MT86H Operation and Maintenance Manual 134 ...
Page 143: ...MT86H Operation and Maintenance Manual 135 Chapter V Maintenance ...
Page 144: ...MT86H Operation and Maintenance Manual 136 ...
Page 160: ...MT86H Operation and Maintenance Manual 152 3 Lubrication diagram ...
Page 161: ...MT86H Operation and Maintenance Manual 153 Chapter VI Annex ...
Page 165: ...157 6 5 Schematic diagram of electrical system ...