For an example of a
108SD and 114SD Maintenance Manual
page, see
f020176
C
B
F
D
E
26
26/1
Transmission
A
02/04/2011
108SD and 114SD Maintenance Manual, April 2011
2.
Clean the area around the fill plug, then remove
the plug from the side of the gear case.
11/30/2010
A. Full
Fig. 1, Checking Transmission Fluid Level
3.
Using your gloved finger or a bent pipe cleaner,
check if the fluid is level with the fill opening. See
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
passages.
Transmission Fluid
f260006c
Operating a transmission with the fluid level
higher or lower than recommended can result in
transmission damage. Do not overfill the trans−
mission.
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.
Level Check
26−01
NOTICE
B. Low
A
B
Eaton Fuller
Allison
NOTE: Check the transmission fluid level with
the transmission at operating temperature.
1.
Park the vehicle on a level surface, apply the
parking brakes, and chock the tires.
Fig. 1.
4.
If the fluid level is low, check the transmission for
leaks, and correct as needed.
5.
If needed, add Eaton−approved fluid until it is
level with the lower edge of the fill opening.
Eaton−approved fluid, such as the Roadranger
SAE 50 product, meets the requirements of the
PS−164 Rev. 7 lubricant specification. For more
information about Eaton lubricant specifications
and suppliers, call 1−800−826−4357 or see
w.roadranger.com.
ww−
6.
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 trans−
missions with 3/4−inch pipe threads.
NOTE: For Allison transmissions equipped with
an oil level sensor, the transmission fluid level
can be checked electronically. For more infor−
mation, refer to the Allison Transmission web−
site,
www.allisontransmission.com.
Cold Check
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.
1.
Park the vehicle on a level surface, apply the
parking brakes, and chock the tires.
2.
Run the engine for at least one minute.
3.
Shift from DRIVE to NEUTRAL, and then shift to
REVERSE to fill the hydraulic system.
4.
Shift to NEUTRAL and allow the engine to idle
at 500 to 800 rpm.
5.
With the engine running at idle, remove the dip−
stick from the tube and wipe it clean.
6.
Insert the dipstick into the tube, then remove it.
7.
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.
A. Maintenance Operation Number consists of the Group Number followed by the Sequence Number
B. Group Title
C. Group Number
D. Vehicle Name
E. Release Date
F.
Group Number/Page Number
Fig. 1, Example of a 108SD and 114SD Maintenance Manual Page
Introduction
Page Description
108SD and 114SD Maintenance Manual, November 2018
I–3
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