Checking Oil Level; Oil Drains Interval; Oil Change - PREVOST H3-41 Maintenance Manual

SECTION 07: TRANSMISSION
8.2

CHECKING OIL LEVEL

Check the transmission oil level at each service
interval. Park the vehicle on a level surface.
Check the oil level through the sight glass on the
side of the transmission. Add oil as necessary.
Always use the correct Volvo approved synthetic
oil.
FIGURE 17: I-SHIFT TRANSMISSION OIL CHANGE
Vehicle should be on horizontal ground when

oil is changed;
 Do not check oil level straight after a journey
(incorrect measurement). Undertake the
check once the transmission oil has cooled
down (lower than 104
Check oil level using transmission sight

glass (2) ;
FIGURE 18: SIGHT GLASS FOR CHECKING OIL LEVEL
 Add oil through the oil filling point if
necessary (3) ;
Torque tighten fill plug.

TORQUE: 22-30 lb-ft (30-41 Nm)
28
PA1621 Maintenance Manual All Series | January 2017
F or 40 C);
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8.3

OIL DRAINS INTERVAL

The length of time a transmission can operate
before an oil change is required depends on the
quality of the oil used and the vehicle application.
MAINTENANCE
Always use Volvo approved synthetic oil
whenever changing
Always replace the oil filter when the oil is
changed.
Refer to "2.2 FLUIDS AND LUBRICANTS
SPECIFICATION" in
appropriate I-Shift transmission oils.
Extended Drains
For normal and heavy operating condition,
change the transmission oil and filter at the
intervals specified by the Lubrication And
Servicing Schedule
LUBRICATION & SERVICING. This extended
oil change interval requires using approved oil
for extended drains.
8.4

OIL CHANGE

Approximately 15 liters (16 quarts) is needed for
a complete oil change.
WARNING
Hot oil can cause burns. DO NOT allow hot oil
to contact the skin. When changing oil, wear
protective gloves.
Remove the drain
transmission (1A or 1B, Figure 17) and allow the
oil to drain into a suitable container.
Inspect the drain plug and O-ring. Replace if
necessary. Reinstall the drain plug.
TORQUE: 18-24 lb-ft (24-33 Nm)
CAUTION
Always dispose of all lubricants (engine oil,
coolant, transmission oil, etc) and filters
according to Federal or local regulations.
Change the oil filter (#20779040) at every oil
change. Drain the oil filter housing before you
the transmission oil.
SECTION 24 for
in Section 24:
plug from under the