Freightliner Coronado 132 / 122SD. Manual - part 11

26–00 Safety Precautions

Safety Precautions in this section apply to all
procedures within this group.

DANGER

When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle can not drop. Failure to follow these steps
could result in serious personal injury or death.

26–01 Eaton Fuller

Transmission Fluid
Change, and Magnetic
Plug Cleaning

NOTICE

Operating a transmission with the fluid level
higher or lower than recommended can result in
transmission damage. Do not overfill the transmis-
sion. Overfilling will force fluid out of the case
through the main shaft openings.

Do not mix types and brands of fluid, because of
possible incompatibility. Do not use fluid addi-
tives, friction modifiers, extreme-pressure gear
fluids, or multiviscosity lubricants.

NOTE: Fluid change intervals are extended to
500,000 miles (800 000 km) on any vehicles
filled with synthetic transmission fluid.

If the transmission fluid is not at normal operat-
ing temperature, run the engine until the fluid
reaches operating temperature.

Park the vehicle on level ground, apply the park-
ing brakes, shift the transmission to neutral (N),
shut down the engine, and chock the tires.

Place a large drain pan under the transmission.

Clean the area around the fill plug, and remove it
from the side of the gear case. Remove each
drain plug from the bottom of the case.

Clean the fill and drain plugs. For magnetic
plugs, use a piece of key stock or any other con-

venient steel slug to short the two magnetic
poles and divert the magnetic field.

Install and tighten each drain plug 50 lbf·ft (68
N·m).

NOTE: The optional transmission fluid filter is a
remote-mount, spin-on type, and is located be-
tween the transmission and the fluid cooler. The
filter bracket is attached to the frame rail or
some other nearby location. The filter is
mounted in a vertical position, and should be
filled with fluid before installation to assure the
proper fluid level. For optimum transmission per-
formance, change the filter each time that the
fluid is changed.

For a transmission equipped with a transmission
fluid filter(s), replace the fluid filter(s) as follows.

6.1

Place a drain pan under the transmission
fluid filter.

CAUTION

To prevent skin burns from hot transmission fluid,
wear protective gloves when removing the filter.

6.2

Place a strap or chain wrench around the
filter canister, and rotate it in a counter-
clockwise motion to separate the filter
from the mounting. Carefully spin the filter
off the mount and remove it from the ve-
hicle.

6.3

Apply a light coat of transmission fluid to
the O-ring gasket on the new filter. Fill the
filter with specified transmission fluid, and
spin the filter onto the mount.

NOTE: The filter fills slowly, so be patient to
ensure the proper fluid level has been
reached.

6.4

Once the filter makes contact with the
mount, use a strap wrench to rotate the
canister an additional 180 to 270 degrees
to firmly tighten the filter. Wipe the filter
clean of any fluid after it is tightened.

Add fluid until it is level with the lower edge of
the fill opening. See

Fig. 1

. If the transmission

has two fill openings, add fluid to the level of
both openings. See

Table 1

for approved trans-

mission lubricants. See

Table 2

for Eaton Fuller

transmission lubricant capacities.

Transmission

26/1

Approved Transmission Lubricants

Transmission

Lubricant Type

Eaton Fuller

Mobil Delvac Synthetic Transmission
Fluid 50

Synthetic transmission lubricant
approved by Eaton

†

Do not mix types or brands of fluid. Multi-weight and extreme-pressure

gear fluids are not recommended.

†

Call 1-800-826-4357, or see

www.RoadRanger.com

for a complete list

of Eaton approved lubricants.

Table 1, Approved Transmission Lubricants

Eaton Fuller Transmission Lubricant Capacities

Transmission Model

Refill Capacity

†

: qt (L)

9-Speed Series

All Models

14 (13)

10-Speed Manual (except deep reduction)

FR and FRO Series

11.75 (11)

10-Speed Deep Reduction

RTO–14908LL

14.0 (13)

RTO–16908LL

10-Speed Automatic

RTO-16910C-AS Autoshift
RTO-14910C-AS Autoshift
RTO-16910B-DM2 Ultrashift

14 (13)

RTO-18910B-AS Autoshift
RTO-16910B-AS Autoshift

13 (12)

13-Speed Series

RTLO and RTLOM Series

14 (13)

15-Speed Series

RT and RTO Series

14 (13)

18-Speed Series

Eaton Fuller Transmission Lubricant Capacities

Transmission Model

Refill Capacity

†

: qt (L)

RTLO Series

14 (13)

18-Speed Autoshift AS

For models not listed in this table see the Eaton Fuller website,

ww-

w.roadranger.com

†

Quantities listed are approximate. Fill transmission until lubricant is level

with bottom of fill hole with vehicle in normal operating position.

Table 2, Eaton Fuller Transmission Lubricant

Capacities

NOTE: In all cases, the correct fluid level is es-
tablished by checking at the fill opening.

Operate the engine for five minutes after filling
the transmission, then check the fluid level again.

Clean the fill plug, then install it in the transmis-
sion. Tighten the plug as follows:

• 25 to 35 lbf·ft (34 to 48 N·m) for Eaton

Fuller transmissions with 3/4-inch pipe
threads.

• 60 to 75 lbf·ft (81 to 102 N·m) for Eaton

Fuller transmissions with 1-1/4-inch pipe
threads.

10. Operate the vehicle to check for correct opera-

tion.

26–02 Transmission Fluid

Level Inspection

NOTICE

Operating a transmission with the fluid level
higher or lower than recommended can result in
transmission damage. Do not overfill the transmis-
sion.

Do not mix types and brands of fluid, because of
possible incompatibility. Do not use fluid addi-
tives, friction modifiers, extreme-pressure gear
fluids, or multiviscosity lubricants.

Eaton Fuller

NOTE: Check the transmission fluid level with
the transmission at operating temperature.

f260006a

05/27/93

A. Full

B. Low

Fig. 1, Checking Transmission Fluid Level

Transmission

26/2

Park the vehicle on a level surface, apply the
parking brakes, and chock the tires.

Clean the area around the fill plug, then remove
the plug from the side of the gear case.

Using your finger or a bent pipe cleaner, check if
the fluid is level with the fill opening. See

Fig. 1

If the fluid level is low, check the transmission for
leaks, and correct as needed.

If needed, add recommended fluid until it is level
with the lower edge of the fill opening. See

Table

for approved transmission fluids.

Clean the fill plug, then install it. Tighten the plug
as follows:

• 25 to 35 lbf·ft (34 to 48 N·m) for transmis-

sions with 3/4-inch pipe threads.

• 60 to 75 lbf·ft (81 to 102 N·m) for transmis-

sions with 1-1/4-inch pipe threads.

Allison

Cold Check

Clean all dirt from around the end of the fluid fill tube
before removing the dipstick. Do not allow foreign
matter to enter the transmission. Dirt or foreign mat-
ter in the hydraulic system may cause undue wear of
transmission parts, make valves stick, and clog pas-
sages.

It is important to check the fluid level cold to deter-
mine if the transmission has a sufficient amount of
fluid to be safely operated until a hot check can be
performed.

Park the vehicle on a level surface, apply the
parking brakes, and chock the tires.

Run the engine for at least one minute.

Shift from DRIVE to NEUTRAL, and then shift to
REVERSE to fill the hydraulic system.

Shift to NEUTRAL and allow the engine to idle at
500 to 800 rpm.

With the engine running at idle, remove the dip-
stick from the tube and wipe it clean.

Insert the dipstick into the tube, then remove it.

Check the fluid level reading, then repeat the
check procedure to verify the reading.

If the fluid level is within the COLD RUN band,
the transmission may be operated until the fluid
is hot enough to perform a hot check.

If the fluid level is not within the COLD RUN
band, add or drain fluid as needed to adjust the
fluid level to the middle of the COLD RUN band.
See

Fig. 2

NOTICE

As the fluid temperature increases, so does the
fluid level. Do not fill above the COLD RUN band if
the transmission fluid is below normal operating
temperature.

NOTE: Perform a hot check at the first opportu-
nity after the normal operating temperature, 160
to 200°F (71 to 93°C), has been reached.

Hot Check

Park the vehicle on a level surface, apply the
parking brakes, and chock the tires.

Shift the transmission to NEUTRAL.

Operate the engine at idle (500 to 800 rpm) until
normal operating temperature is reached. Check
that the sump temperature is 160 to 200°F (71 to
93°C). Check that the converter-out temperature
is 180 to 220°F (82 to 104°C).

With the engine idling, remove the dipstick from
the tube and wipe it clean.

Insert the dipstick into the tube, then remove it.

Check the fluid level reading, then repeat the
check procedure to verify the reading. Safe oper-
ating level is within the HOT RUN band on the

12/01/97

f270002a

A. Cold Run Band

B. Hot Run Band

Fig. 2, Dipstick Markings

Transmission

26/3

dipstick. The HOT RUN band is between the
HOT FULL and HOT ADD marks.

If the fluid level is not within the HOT RUN band,
add or drain fluid as needed to bring the fluid
level within the HOT RUN band. See

Fig. 2

26–03 Manual Transmission Air

Filter/Regulator Check,
Cleaning, or
Replacement

Eaton Fuller

Apply the parking brakes and chock the tires.
Drain the air reservoirs.

WARNING

Drain the air supply; if the air supply is not
drained before the air filter/regulator is serviced,
serious injury and component damage could re-
sult.

Clean the outside of the air filter/regulator with
cleaning solvent. See

Fig. 3

Remove the end cap, large O-ring, and filter ele-
ment from the filter housing. See

Fig. 4

. Remove

the small O-ring from the end cap.

NOTE: Do not remove, disassemble, or adjust
the air regulator. If the air regulator is not keep-
ing air pressure between 58 and 63 psi (400 to
435 kPa), replace the air filter/regulator. It can-
not be repaired.

WARNING

Wear safety goggles when using compressed air
to clean parts, as permanent harm to eyes could
result from flying debris.

Clean the filter element by dipping it in alcohol or
other cleaning solvent. Blow compressed air
through the element (inside to outside) to loosen
surface dirt and to dry the element. If it is not
damaged, the sintered metallic filter element will
last the life of the vehicle.

Wipe out the filter housing with a clean, dry, lint-
free rag. Clean and inspect the O-rings and end
cap. Replace any parts that are damaged.

Install the large O-ring, then the filter element
(small end first) into the filter housing.

Install the small O-ring in the end cap, then in-
stall the end cap and tighten it until firm.

f260037a

05/27/93

Fig. 3, Air Filter/Regulator Location (Eaton Fuller

transmission shown)

f260052a

10/17/2001

Air Regulator

Housing

Large O-Ring

Filter Element

Small O-Ring

End Cap

Plug

Fig. 4, Eaton Fuller Transmission Air Filter/Regulator

Components

Transmission

26/4

Content .. 9 10 11 12 ..