Manual Transmission Fluid Change
- Park the vehicle on level ground, apply the parking brakes, 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 case. Remove each drain plug from the bottom of the transmission case. Drain the fluid while the transmission is warm.
- Clean the fill and drain plugs. For magnetic plugs, use a piece of key stock or any other convenient steel slug to short the two magnetic poles and divert the magnetic field. Clean the material that may have been attracted to the magnet. The amount of material on the magnetic plug shows the condition and wear in the transmission; excessive material may indicate that the transmission should be looked at. Remove the key stock or steel slug from the magnetic drain plug. Install and tighten each drain plug 50 lbf·ft (68 N·m).
- For an Eaton/Fuller transmission with a transmission fluid
filter(s), replace the filter(s), as follows.
- Place a drain pan under the transmission fluid filter.
- Place a strap or chain wrench around the filter canister, and rotate in a counterclockwise motion to separate the filter from the mounting. Carefully spin the filter off the mount and remove it.
- Apply a light coat of transmission fluid to the O-ring gasket on the new filter. Fill the filter with the specified transmission fluid, and spin the filter on the mount.
- Once the filter has made contact with the mount, use a strap or chain wrench to rotate the filter canister an additional 180 to 270 degrees to firmly tighten the filter. Wipe the filter clean of any fluid after it is tightened.
Caution: To prevent skin burns from hot transmission fluid, wear protective gloves when removing the drain plugs.
Note: The filter fills slowly, so be patient to ensure the proper fluid level has been reached.
- Add fluid until it is level with the lower edge of the
fill opening. See Fig.. If the transmission
has two fill openings, add fluid to the level of both openings. See Table. for approved transmission lubricants, and Table. for lubricant
capacities. The correct capacity is established by the location of
the fill opening.
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Cold Run Band
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Hot Run Band
Fig. 1, Dipstick Markings
Table 1, Eaton and Meritor Approved Transmission Lubricants
Eaton and Meritor Approved Transmission Lubricants Transmission Model Lubricant Type1 Temp. Range SAE Viscosity Eaton Fuller
Synthetic transmission lubricant meeting Eaton PS-386 lubricant specification
All
—
Meritor
Synthetic engine oil meeting Meritor specification 0–81, or MIL–L–2104D or E
All
50W
- Do not mix types or brands of fluid. Multiweight and extreme-pressure gear fluids are not recommended.
Table 1, Eaton and Meritor Approved Transmission Lubricants
Table 2, Transmission Lubricant Capacities
Transmission Lubricant Capacities
Transmission Make and Model
1Capacity: pt (L)
Eaton/Fuller 7-Speed
T–14607A/B
37 (17.5)
TX–14607B
37 (17.5)
Eaton/Fuller 9-Speed
RT–11609A
27 (12.8)
RTX–11609B/R
27 (12.8)
RT/RTX–11709H
27 (12.8)
RT–12609A
27 (12.8)
RTX–12609B/R
27 (12.8)
RT/RTX–12709H
27 (12.8)
RT–13609A
27 (12.8)
RTX–13609B/R
27 (12.8)
RT/RTX–13709H
27 (12.8)
RT–14609A
27 (12.8)
RTX–14609B/R
27 (12.8)
RT/RTX–14709H
27 (12.8)
RTX–16709B/H
27 (12.8)
Eaton/Fuller 10-Speed
FR–11210B
23.5 (11)
FR–14210B
23.5 (11)
FR–15210B
23.5 (11)
RTO/RTX–11708LL
28 (13.2)
RT–11710B
26 (12.3)
RTX–11710B/C
26 (12.3)
RTO–11908LL
29 (13.7)
RTLO–12610B
26 (12.3)
RT–12710B
26 (12.3)
RTX–12710B/C
26 (12.3)
RTL0–13610B
28 (13.2)
RT–13710B
26 (12.3)
RTX–13710B/C
26 (12.3)
RTLO–14610B
28 (13.2)
RTO/RTX–14708LL
29 (13.7)
RT–14710B
26 (12.3)
RTX–14710B/C
26 (12.3)
RTLO–15610B
28 (13.2)
RTX–15710B/C
26 (12.3)
RTO–16210C
22 (10.4)
RTLO–16610B
28 (13.2)
RTX–16710B
26 (12.3)
Eaton/Fuller 13-Speed
RTLO–12713A
28 (13.2)
RTLO–14713A
28 (13.2)
RTLO–16713A
28 (13.2)
Eaton/Fuller 15-Speed
RT/RTO/RTX–14715
28 (13.2)
RT/RTO/RTX–15715
28 (13.2)
Eaton/Fuller 18-Speed
RTLO–14718B
28 (31.2)
RTLO–16718B
28 (13.2)
RTLO–18718B
28 (13.2)
Meritor 9-Speed
RM9–115A
20 (9.5)
RMO9–115B
20 (9.5)
RMX9–115B/R
20 (9.5)
RM9–125A
20 (9.5)
RMO9–125A/B
20 (9.5)
RMX9–125A/B/R
20 (9.5)
RM9–135A
20.5 (9.7)
RMO9–135A/B
20.5 (9.7)
RMX9–135A/B/R
20.5 (9.7)
RM9–145A
20.5 (9.7)
RMO9–145A/B
20.5 (9.7)
RMX9–145A/B/R
20.5 (9.7)
RM9–155A
20.5 (9.7)
RMX9–155B
20.5 (9.7)
Meritor 10-Speed
RM10–115A
20 (9.5)
RMX10–115A
20 (9.5)
RM10–125A
20 (9.5)
RMX10–125A
20 (9.5)
RM10–135A
20.5 (9.7)
RMX10–135A
20.5 (9.7)
RM10–145A
20.5 (9.7)
RMX10–145A
20.5 (9.7)
RMX10–155A
20.5 (9.7)
RMX10–165A
20.5 (9.7)
Meritor 13-Speed
RMO13–145A
22 (10.4)
- For models not listed in this table see the Eaton website, www.roadranger.com
Table 2, Transmission Lubricant Capacities
-
- For a transmission equipped with a fluid pump or a fluid cooler, operate the engine for five minutes after filling the transmission, then check the fluid level again.
- Install the fill plug, then tighten it 50 lbf·ft (68 N·m).
- Operate the vehicle to check for correct operation.
Notice: Operating a transmission with the fluid level higher or lower than recommended can result in transmission damage. Do not overfill the transmission. 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 additives, friction modifiers, extreme-pressure gear fluids, or multiviscosity lubricants.
Note: Fluid change intervals are extended to 500,000 miles (800 000 km) on vehicles equipped with a Meritor RM10–115A or RM10–145A transmission or any vehicle equipped with an Eaton/Fuller transmission filled with synthetic transmission fluid.
Caution: To prevent skin burns from hot transmission fluid, wear protective gloves when removing the drain plugs.
Note: Eaton/Fuller transmissions are available with an optional transmission fluid filter. The filter is a remote-mount, spin-on type, and is located between the transmission and the fluid cooler. The filter bracket is attached to the frame rail. The filter is mounted in a vertical position, and should be filled with fluid before installation to ensure the proper fluid level in the transmission case. For optimum transmission performance, change the filter each time the fluid is changed.