Blue Bird Coachworks 450 LXi, Owner'S Manual

Page: 485 / 684

5-3 Engine Maintenance
450 LXi Owner Manual
~ 5-3-26 ~
Rev. “C”
Pour 26 L (28 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase. Approximately 20
minutes should be allowed. Check the oil level. Wait for several minutes and check the oil level again. Proceed after the
oil level stops changing.
Check the oil level on the oil level gauge. The oil level should be at the “ADD” mark. If the oil level is not at the existing
“ADD” mark, grind off the “ADD” mark and engrave the new “ADD” level. Use an engraving pen in order to engrave the
new “ADD” mark.
Pour 4 L (4 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase.
Check the oil level on the oil level gauge. The oil level should be at the “FULL” mark. If the oil level is not at the existing
“FULL” mark, grind off the “FULL” mark. Use an engraving pen in order to engrave the new “FULL” mark.
3.
4.
5.
6.
Pour an additional 4 L (4 qt) of oil into the crankcase. Start the engine and run the engine enough to ensure that the
lubrication system is fi lled. Inspect the engine for oil leaks.
Stop the engine and allow enough time for the oil to drain into the crankcase.
Check the oil level on the oil level gauge. If the oil level is not at the calibrated “FULL” mark, fi ll the crankcase to the
calibrated “FULL” mark. Record the amount of oil that was added. The additional oil and the 34 L (36 qt) of oil that was in
the crankcase is the oil capacity of the lubrication system. Record the oil capacity of the lubrication system for future oil
changes.
7.
8.
9.
5-3.32 Engine Oil Level Gauge - Calibrate
(Standard-Deep)
210-1745 Pan (Standard-Deep) - This pan has
an overall height of 335 mm (13.2 inch).
5-3.32.1 Check Calibration at the First Oil Change
The engine oil level will vary depending on the angle and the slant of the engine
installation. The angle is the front to back tilt. The slant is the sideways tilt.
The oil level gauge markings must be verifi ed in order to ensure that they are
correct. Verify the oil level gauge markings at the fi rst oil change.
Verify the “ADD” mark and verify the “FULL” mark that is on the oil level gauge.
Use the following procedure.
Operate the engine until normal operating temperature is achieved. Stop the engine. Remove the crankcase oil drain plugs.
The oil drain plug from the deep portion of the oil pan should be removed. The oil drain plug from the shallow portion of the
oil pan should be removed. This will allow all of the oil to drain. Drain the oil from the crankcase for 20 minutes.
Remove the used oil fi lter(s). Install the new oil fi lter(s). Install the oil drain plugs and tighten to 70 ± 15 N•m (50 ± 11 lb ft).
Pour 32 L (34 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase. Approximately 20
minutes should be allowed. Check the oil level. Wait for several minutes and check the oil level again. Proceed after the oil
level stops changing.
Check the oil level on the oil level gauge. The oil level should be at the “ADD” mark. If the oil level is not at the existing
“ADD” mark, grind off the “ADD” mark and engrave the new “ADD” level. Use an engraving pen in order to engrave the new
“ADD” mark.
Pour 4 L (4 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase.
Check the oil level on the oil level gauge. The oil level should be at the “FULL” mark. If the oil level is not at the existing
“FULL” mark, grind off the “FULL” mark. Use an engraving pen in order to engrave the new “FULL” mark.
1.
2.
3.
4.
5.
6.
NOTICE: Do not crank the engine for more than 30 seconds. Allow the starting motor to cool for two minutes
before cranking again.
NOTICE: The vehicle must be parked on a level surface in order to perform this maintenance procedure.
NOTE: Your engine may be equipped with auxiliary oil fi lters. The auxiliary oil fi lters require a different volume of oil.
Refer to the OEM specifi cations for the auxiliary oil fi lter.