Freightliner Century Class. Instruction - page 1

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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