To Change Engine Oil; Air Cleaner; To Change Engine Oil Filter; Figure 8−10 Engine Oil Level - Carrier VECTOR 6500 Operation & Service Manual

2 Unscrew the cap/dipstick see Figure 8−10. Wipe the
dipstick clean and insert the cap into the oil fill tube
without threading into tube.
3 Remove the dipstick again and check oil level. DO
NOT add oil if the level is in the "safe" range. If need-
ed, add oil as indicated by markings on dipstick until
level is in the "safe" range.
4 After checking or adding oil as necessary, ensure cap
is threaded back onto oil fill tube.
Cap
Dipstick
QTS 1
Figure 8−10 Engine Oil Level
4
1
2
1. Engine Block
2. Oil Pan
3. Oil Filter
4. Engine Oil Connection
5. Oil Pressure Switch
Figure 8−11 Engine Oil Flow Diagram
b. To Change Engine Oil:
1 Warm up the engine and then stop it by placing the
Main Power switch in the OFF position. Ensure the
unit will not start automatically by disabling any two
way communication. Disconnect the high voltage
source and lockout/tagout the receptacle.
2 If available, install oil drain tool (CTD P/N
68-15763-00). See Figure 8−12. The Oil Drain Tool
not only directs the oil over the door latch pin bracket
and bottom panel, on units so equipped, but also
holds a typical drain bucket in place while the oil is
draining from the engine.
2 SAFE
5
3
8−11
3 Remove drain plug drain engine oil. Replace plug and
refill engine with oil. Continue with step c. and change
oil filter.
Figure 8−12 Oil Drain Tool
c. To Change Engine Oil Filter:
1 If not continuing from preceding step b., warm up the
engine and then stop it by placing the Main Power
switch in the OFF position. Ensure the unit will not
start automatically by disabling any two way commu-
nication. Disconnect the high voltage source.
2 Remove oil filter. Ensure filter mounting is clean.
CAUTION
When changing oil filters, the new filters
should be primed (partially filled) with clean
oil if possible. If the filters are not primed,
the engine may operate for a period with no
oil supplied to the bearings.
3 Lightly oil gasket on new filter before installing. Tight-
en 3/4 to 1 turn after the seal makes contact.
4. Start unit and check for leaks.

8.5.9 Air Cleaner

The air cleaner should be inspected regularly for leaks.
A damaged air cleaner or hose can seriously affect the
performance and life of the engine. The air cleaner is de-
signed to effectively remove contaminants from the air
stream entering the engine. An excessive accumulation
of these contaminants in the air cleaner will impair its op-
eration; therefore, a service schedule must be set up
and followed.
An air cleaner service indicator is connected to the in-
take manifold. Its function is to indicate when the air
cleaner requires replacement. During operation: when a
plugged air cleaner causes the intake manifold pressure
to drop to 20" (500 mm) WG, the indicator will move to
the red line. The air cleaner should then be replaced and
the indicator reset by pressing the reset button.
a. Ensure the unit will not start automatically by dis-
abling any two way communication and placing the
Main Power switch in the OFF position. Disconnect
the high voltage source.
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