Freightliner Century Class. Instruction - page 1
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Determining Scheduled
Maintenance Intervals
Performing regular maintenance on your Freightliner
will help ensure that your Freightliner delivers safe
reliable service and optimum performance for years
to come. Failure to follow a regular maintenance pro-
gram can result in inefficient operation and unsched-
uled down time.
To determine the correct maintenance intervals for
your vehicle you must first determine the type of ser-
vice or conditions the vehicle will be operating in.
Generally, most vehicles operate under conditions
that fall within one of the four types of service de-
scribed. Before placing your new vehicle in service,
determine the type of service (Service Schedule I, II,
III, or IV) that applies to the intended use of the ve-
hicle. After determining the vehicle’s type of service,
refer to the service schedule table or the vehicle
maintenance schedule table, to determine how often
maintenance should be performed.
Types of Service
Service Schedule I (severe service) applies to ve-
hicles that annually travel less than 6000 miles (10
000 kilometers) or that operate under severe condi-
tions. Examples of severe service, Schedule I usage
include: operation on extremely poor roads or where
there is heavy dust accumulation; constant exposure
to extreme hot, cold, salt-air, or other extreme cli-
mates; frequent short-distance travel; construction-
site operation; city operation (fire truck); or farm
operation.
Service Schedule II (short-haul transport) applies to
vehicles that annually travel less than 60,000 miles
(100 000 kilometers) and operate under normal con-
ditions. Examples of Schedule II usage are: opera-
tion primarily in cities and densely populated areas;
local transport with infrequent freeway travel; or high
percentage of stop-and-go travel.
Service Schedule III (long-haul transport) is for ve-
hicles that annually travel more than 60,000 miles
(100 000 kilometers) with minimal city or stop-and-go
operation. Examples of Schedule III usage are: re-
gional delivery that is mostly freeway miles; interstate
transport; or any road operation with high annual
mileage.
Service Schedule IV (long haul transport for Opti-
mized Vehicle Configuration) is for vehicles that an-
nually travel over 60,000 miles (100 000 km) and
meet the following qualifications:
• Meritor 15-1/2 inch dampened/ceramic Lite
Pedal LTD clutch with sealed release bearing.
• Synthetic transmission fluid used in transmis-
sion.
• Meritor FF–961 or FF–981 front axle (12,000 lb.
capacity) with synthetic lubricant.
• Front suspension with maintenance-free rubber
bushings for 12,000 lb. capacity suspension.
• Meritor RPL series, or Spicer SPL series drive-
line U-joints.
• Synthetic lubricant used in rear axle.
• Equipped with any Freightliner AirLiner suspen-
sion.
• Equipped with Meritor Q-Plus extended-lube
cam brakes and automatic slack adjusters, front
and rear.
• Standard brake system package including Ben-
dix AD-9 air dryer—mounted on the right-hand
frame rail, located directly behind the front
bumper—with heater, and a Bendix air com-
pressor.
• TRW TAS–65 power steering.
General Information
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Service Schedule
Maintenance Interval Operation
Maintenance Interval
Frequency
Miles
km
Hours
Schedule I
*
(Severe Service)
vehicles that annually travel less
than 6000 miles (10 000 km)
first
1000
1600
50
Maintenance 1 (M1)
every
1000
1600
50
Maintenance 2 (M2)
every
5000
8000
500
Maintenance 3 (M3)
every
15,000
24 000
1500
Schedule II
†
(Short-Haul Transport)
vehicles that annually travel less
than 60,000 miles (100 000 km)
first
10,000
16 000
—
Maintenance 1 (M1)
every
10,000
16 000
Maintenance 2 (M2)
every
50,000
80 000
Maintenance 3 (M3)
every
150,000
240 000
Schedule III
†
(Long-Haul Transport)
vehicles that annually travel over
60,000 miles (100 000 km)
first
25,000
40 000
—
Maintenance 1 (M1)
every
25,000
40 000
Maintenance 2 (M2)
every
100,000
161 000
Maintenance 3 (M3)
every
300,000
483 000
Schedule IV
†
(Long-Haul Transport for
Optimized Vehicle Configuration)
vehicles that annually travel over
60,000 miles (100 000 km)
first
25,000
40 000
—
Maintenance 1 (M1)
every
25,000
40 000
Maintenance 2 (M2)
every
100,000
161 000
Maintenance 3 (M3)
every
300,000
483 000
*
For Schedule I (severe service) vehicles equipped with an hourmeter, use maintenance intervals based on hours of operation rather than distance traveled.
†
Use Schedule I (severe service) maintenance intervals for vehicles that operate under severe conditions, such as extremely poor roads, heavy dust accumu-
lation, extreme climate, frequent short distance travel, construction-site operation, city operation (garbage truck), or farm operation.
Table 1, Service Schedule
General Information
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Service Schedule Table: 00–02
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Maint. No.
Maintenance
Interval
Service
Date
Service Schedule I
Service Schedule II
Miles
km
Hours
Miles
km
1st
IM and M1
1000
1600
100
10,000
16 000
2nd
M1
2000
3200
200
20,000
32 000
3rd
M1
3000
4800
300
30,000
48 000
4th
M1
4000
6400
400
40,000
64 000
5th
M1 and M2
5000
8000
500
50,000
80 000
6th
M1
6000
9600
600
60,000
96 000
7th
M1
7000
11 200
700
70,000
112 000
8th
M1
8000
12 800
800
80,000
128 000
9th
M1
9000
14 400
900
90,000
144 000
10th
M1 and M2
10,000
16 000
1000
100,000
160 000
11th
M1
11,000
17 600
1100
110,000
176 000
12th
M1
12,000
19 200
1200
120,000
192 000
13th
M1
13,000
20 800
1300
130,000
208 000
14th
M1
14,000
22 400
1400
140,000
224 000
15th
M1, M2, and M3
15,000
24 000
1500
150,000
240 000
16th
M1
16,000
25 600
1600
160,000
256 000
17th
M1
17,000
27 200
1700
170,000
272 000
18th
M1
18,000
28 800
1800
180,000
288 000
19th
M1
19,000
30 400
1900
190,000
304 000
20th
M1 and M2
20,000
32 000
2000
200,000
320 000
21st
M1
21,000
33 600
2100
210,000
336 000
22nd
M1
22,000
35 200
2200
220,000
352 000
23rd
M1
23,000
36 800
2300
230,000
368 000
24th
M1
24,000
38 400
2400
240,000
384 000
25th
M1 and M2
25,000
40 000
2500
250,000
400 000
26th
M1
26,000
41 600
2600
260,000
416 000
27th
M1
27,000
43 200
2700
270,000
432 000
28th
M1
28,000
44 800
2800
280,000
448 000
29th
M1
29,000
46 400
2900
290,000
464 000
30th
M1, M2, and M3
30,000
48 000
3000
300,000
480 000
General Information
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Maint. No.
Maintenance
Interval
Service
Date
Service Schedule I
Service Schedule II
Miles
km
Hours
Miles
km
31st
M1
31,000
49 600
3100
310,000
496 000
32nd
M1
32,000
51 200
3200
320,000
512 000
33rd
M1
33,000
52 800
3300
330,000
528 000
34th
M1
34,000
54 400
3400
340,000
544 000
35th
M1 and M2
35,000
56 000
3500
350,000
560 000
36th
M1
36,000
57 600
3600
360,000
576 000
37th
M1
37,000
59 200
3700
370,000
592 000
38th
M1
38,000
60 800
3800
380,000
608 000
39th
M1
39,000
62 400
3900
390,000
624 000
40th
M1 and M2
40,000
64 000
4000
400,000
640 000
41st
M1
41,000
65 600
4100
410,000
656 000
42nd
M1
42,000
67 200
4200
420,000
672 000
43rd
M1
43,000
68 800
4300
430,000
688 000
44th
M1
44,000
70 400
4400
440,000
704 000
45th
M1, M2, and M3
45,000
72 000
4500
450,000
720 000
46th
M1
46,000
73 600
4600
460,000
736 000
47th
M1
47,000
75 200
4700
470,000
752 000
48th
M1
48,000
76 800
4800
480,000
768 000
49th
M1
49,000
78 400
4900
490,000
784 000
50th
M1 and M2
50,000
80 000
5000
500,000
800 000
51st
M1
51,000
82 000
5100
510,000
820 000
52nd
M1
52,000
83 700
5200
520,000
837 000
53rd
M1
53,000
85 300
5300
530,000
853 000
54th
M1
54,000
86 900
5400
540,000
869 000
55th
M1 and M2
55,000
88 500
5500
550,000
885 000
56th
M1
56,000
90 100
5600
560,000
901 000
57th
M1
57,000
91 700
5700
570,000
917 000
58th
M1
58,000
93 300
5800
580,000
933 000
59th
M1
59,000
94 900
5900
590,000
949 000
60th
M1, M2, and M3
60,000
96 500
6000
600,000
965 000
General Information
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