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PREVENTATIVE MAINTENANCE
(ALL TT, TN, TU &
TUL
MODELS WITH DIESEL ENGINE)
Interva
l
Check/Inspect
Service
Daily
Engine
Oil
Items
that
show
wear or
appear
damaged
Power
steering
flu
id
Transmission fluid
Brake fluid
(master cylinder)
Every 50
Hours
All
the
above,
plus
Items
that
show wear
or
appear damaged
Valve cover
gaskets
Clean
eng ine
air
cleaner
Engine rubber
mountings
After
the
first
50
hour only:
Inlet
&
exhaust
pipe
to manifold
fu8.ighten
all
(8)
suspension
Throttle
controls
U-bolts
to 150
ft. lbs.
Coolant
levels
and
all
hoses
for
signs
of
deterioration o
r
chafing
All belt
drives
for
wear
and proper tension
Fuel
system
for leaks
Electrical
system for
frayed wires
or
loose
c01mections
Steering
arm
bolts
Re·Torque
to
120Ft
lbs.
Every
100 Hou
rs
All the
above,
plus
Items
that
show
wear or
appear d
amaged
Battery
cables
for
corrosion
Change
oil
and replace
oil
filter
Steering
arm
bolts
Re·Torque
to
120Ft
lbs. (Str.
Bolts)
Every
500 Hours
All
the above,
plus
Items
that
show
wear
or
appear
damaged
Drum
brake linings, lines
&
hoses
Replace
ai
r
cleaner
element
Steering
arm
bolts
Replace
fu
el
fi
lter
Replace
transmission fluid
Rotate
tires
Re-Torque to
120Ft
lbs.
(Str.
Bolts)
Every
1,000
Hours
All
the
above
Items
that
show wear or
appear damaged
Replace
Hypoid
Gear
lubricant
in
d rive
axles
Re-Torque
to
120Ft
lbs.
(Str
Bolts)
*Reference
Engine, Transmission, Axle
Manuals
in
Parts/Maintenance
Manual
for
more
Detailed Maintenance
and
Service Requirements
21
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