Thomas SAF-T-LINER C2, Maintenance Manual

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Alternate Method
1. Park the vehicle on a flat, level surface. Apply
the parking brake and chock the rear tires.
2. Shift the transmission to Neutral (N).
3. 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).
4. With the engine idling, remove the dipstick from
the tube and wipe it clean.
5. Insert the dipstick into the tube and remove it.
6. Check the fluid level reading and repeat the
check procedure to verify the reading. Safe oper-
ating level is within the HOT RUN band on the
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. 5 .
26–05 Proterra Transmission
Fluid Level Checking,
Electric Vehicle
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
rear tires.
2. Clean the area around the fill plug, then remove
the fill plug from the case. See
Fig. 7 .
IMPORTANT: A lubricant level close enough to
be seen or touched is not sufficient. It must be
level with the lower edge of the fill opening.
3. Check that the transmission fluid is level with the
lower edge of the transmission fill opening. See
Fig. 8 .
4. If needed, fill the transmission with Shell SPIRAX
Synthetic Manual Transmission Oil S6 GME 40
until it is level with the lower edge of the fill
opening.
M
O
N
I
T
O
R
S
E
L
E
C
T
R
N
D
MODE
f270159 03/04/2008
1
1. Shift Selector Display Screen
Fig. 6, Transmission Shift Selector
f261539 06/03/2020
1 2
3
4
5
1. Position Switches
2. Breather
3. Oil Cooler Ports (optional)
4. Fill Opening and Plug
5. Output Speed Sensor
Fig. 7, Proterra Transmission
Transmission
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Saf-T-Liner C2 School Bus Maintenance Manual, July 2020
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