PREVOST X3-45 2016 Maintenance Manual Download

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Section 07: TRANSMISSION

PA1593

00: GENERAL INFORMATION, paragraph 3:
“Precautions to be observed before welding” for
complete procedure.

3. MAINTENANCE

To gain access to the dipstick, open the engine
compartment rear doors; dipstick is located on the
radiator side of the engine (Fig. 3).

3.1

MANUAL FLUID LEVEL CHECK

DANGER

When checking the oil level, be sure that the
parking brake and/or emergency brakes are set
and properly engaged, and the wheels are
chocked. Unexpected and possible sudden
vehicle movement may occur if these
precautions are not taken.

Special care must be taken not to touch the

engine coolant tubing and/or exhaust pipe,
since this could cause severe burns.

Do not wear loose clothing and, stay away

from rotating parts during procedure;
personal injury could occur.

Clean all dirt from around the end of the oil filler
tube before removing the dipstick. Dirt or foreign
matter must not be permitted to enter the oil
system since it will cause valves to stick, undue
wear of transmission parts, and clogged
passages. Check the oil level using the
procedures in Cold Check and Hot Check.
Record any abnormal level on your

"Maintenance

Records".

FIGURE 3: OIL LEVEL DIPSTICK (AUTO. TRANS.)

07113

Always check the oil level reading at least twice
when the engine is running. Consistency is
important in maintaining the accuracy of the
reading. If inconsistent readings persist, check
the transmission breather to ensure it is clean and
free of debris.

3.1.1 Cold

Check

The purpose of the

Cold Check

is to determine if

the transmission has enough fluid to be operated
safely until a

Hot Check

can be made.

1. If the engine has been shut down for an

extended period of time, park the vehicle on a
level surface and apply the parking brake.

CAUTION

The oil level rises as sump temperature
increases. DO NOT fill above the "Cold Run"
band if the transmission oil is below normal
operating temperature. During operation, an
overfull transmission can become overheated,
leading to transmission damage.

2. Run the engine at idle in “N” (Neutral) for

about one minute.

3. Shift to Drive (D) and operate the engine for 30

seconds at 1000-1500 rpm; then shift to
Reverse (R) to clear the hydraulic system of
air.

4. Move the vehicle to a level surface, put

transmission in «N» (Neutral), and set the
parking brake.

5. Finally shift to Neutral (N) and allow the engine

to idle (500 - 800 rpm).

6. While the engine is running, remove the

dipstick from the tube and wipe it clean (Figs.
4 & 5). Insert the dipstick into the fill tube,
pushing down until it stops.

FIGURE 4: COLD CHECK

07050

7. Remove the dipstick and observe the fluid

level. Repeat the check procedure to verify the
reading. If the fluid on the dipstick is within the
COLD CHECK band, the level is satisfactory
for operating the transmission until the oil is
hot enough to perform a

PREVOST X3-45 2016, Maintenance Manual

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