Lubricant Capacities, Allison AT/MT/MD Series
Transmissions
Model
Refill Capacity
*
:
Quarts (liters)
AT–542
16.0 (15.1)
AT–545
21.0 (19.9)
MT–643
19.0 (18.0)
MD–3060P
17.5 (16.5)
MD–3060PR
*
Quantities listed are approximate. Add the recommended amount of fluid
as listed under refill capacity, then perform a "hot check" and add fluid as
needed. Do not overfill.
Table 4, Lubricant Capacities, Allison AT/MT/MD
Series Transmissions
MD Series
1.
See
Fig. 5
. Park the vehicle on a level surface
and set the parking brake.
2.
Run the engine until the transmission fluid
reaches an operating temperature of 160 to
200°F (71 to 93°C). Shift the transmission to
Neutral (N) and shut down the engine.
CAUTION
To prevent dirt from entering the transmission,
use only clean containers and fillers for the trans-
mission fluid. Do not use fillers or containers that
have been used for water or antifreeze. Dirt, water,
or antifreeze could damage the transmission.
3.
Clean the area around the drain plug. While the
transmission fluid is warm, remove the drain
plug, and drain the fluid.
IMPORTANT: Examine the used transmission
fluid for dirt, coolant or water, and metal par-
ticles. If any of these contaminants are present,
a problem within the transmission system may
exist.
4.
Remove the bolts from each filter cover at the
bottom of the transmission control module. Re-
move the filter covers, O-rings, seals, and the
two cartridge-type filters.
5.
Coat the O-rings lightly with clean transmission
fluid. Place the O-rings, seals, and filters on the
filter covers. Push each cover assembly into the
bottom of the transmission to seat the seals. In-
stall and tighten the bolts 38 to 45 lbf·ft (52 to 61
N·m). Install and tighten the drain plug 18 to 24
lbf·ft (24 to 33 N·m).
6.
Clean the area around the fill tube and remove
the dipstick. Using a clean funnel in the fill tube,
add transmission fluid. See
Table 3
for approved
transmission lubricants, and see
Table 4
for MD
series lubricant capacities.
7.
Check and adjust the fluid level using the proce-
dures under "Allison Transmission Fluid Level
Checking."
f260130a
1
2
3
4
5
6
7
06/04/99
1.
Drain Plug O-Ring
2.
Drain Plug
3.
Filter
4.
Filter O-Ring
5.
Seal
6.
Filter Cover
7.
M10 Bolt
Fig. 5, Allison MD Series Transmission
Transmission
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