SEVERE
SER
VICE
-
ON/OFF
ROAD
IN
DIR
T
Y
CONDITIONS
OR
20,000
MILES
(32,000
KM)
OR
LESS
ANNUALL
Y
(
Continued)
(Miles,
kilometers
or
months
-
w
hichever
occurs
first)
Miles
(x
1000)
5
1
0
1
5
2
0
2
5
3
0
3
5
4
0
4
5
5
0
Kilometers
(x
1000)
8
1
6
2
4
3
2
4
0
4
8
5
6
6
4
7
2
8
0
Months
3
6
9
12
15
18
21
24
27
30
Driveshaft
-
S
PL
Slip
joint
-
inspect
boot
Every
25,000
miles
(40,000
km)
o
r
six
months,
whichever
comes
first
U-joint
-
lubricate
Driveshaft
-
n
on-SPL
U-joint
and
slip
joint
-
lubricate
Every
5,000–8,000
miles
(8,000–12,800
km)
o
r
three
months,
whichever
comes
first
Clutch
Release
bearing
/
shafts
/
forks
••••••••••
Cooling
system
Coolant
-
check
level
••••••••••
Coolant
-
check
freeze
protection
••••••••••
Extended
life
coolant
-
add
extender
See
engine
manufacturer’
s
recommendation
Extended
life
coolant
-
replace
See
engine
manufacturer’
s
recommendation
Engine
-
refer
to
your
engine
operator’
s
m
anual
T
ransmission
Automatic
and
Auto-shift
transmissions
Refer
to
transmission
o
perator’
s
m
anual
Manual
transmission
-
check
fluid
level
••••••••••
Eaton-Fuller
manual
transmission
-
petroleum
oil
change
••
2008 F-650/750
(f67)
Supplement
USA
(fus)
Scheduled Maintenance Guide
253