Page 462
REPAIR INSTRUCTIONS, PART 3
ENGINE FINAL PREPARATION
AND OPERATIONAL CHECK
Filter Element Installation
All filters and coolant conditioners must meet
MACK specifications. Prime oil filters before
installation using the correct specification engine
oil.
1. Install a new air filter in the air filter housing.
2. Install the Centri-Max
®
ULTRA or ULTRA
PLUS (internally drained and vented) filter
assembly. Be sure to use a new rotor
element and O-ring.
There are different rotor assemblies for the
standard Centri-Max
®
, Centri-Max
®
PLUS and
Centri-Max
®
ULTRA or ULTRA PLUS filter
assemblies. All ASET™ engines are equipped
with the ULTRA or ULTRA PLUS filter
assemblies. Be sure to use the correct rotor for
the ULTRA or ULTRA PLUS applications; the unit
will not function if an incorrect rotor is used.
3. Using an appropriate filter wrench such as
J 29927, install the two full-flow oil filter
elements and the coolant conditioner
element.
Prime the fuel filter element(s) before installation.
Use only clean, MACK-specified, Grade 2D
diesel fuel.
4. Prime the fuel filter element(s) as follows:
ASET™ Engines with Combination
Primary/Secondary and Pre-Pump
Filters — Fill the pre-pump filter housing
with clean No. 2 fuel oil and insert the screen
cartridge (spring end up) into the housing.
With the seal in place, install the housing to
the pump base and tighten securely. Fill the
COMBINATION spin-on fuel filter element
with clean No. 2 fuel oil through the small
holes at the perimeter of the element. Do not
fill the filter element through the center hole.
Lubricate the gasket with oil and install the
filter on the pressure side of the pump.
ASET™ Engines with Manifold-Mounted
Primary and Secondary Filters — Fill the
PRIMARY (red) and SECONDARY (green)
fuel filter elements with clean No. 2 fuel oil.
Do not fill the filter elements through the
center hole; each must be filled using the
outer holes. Lubricate the gaskets with oil
and install the filters.
ASET™ Engines with Chassis-Mounted
Primary and Supply Pump-Mounted
Secondary Filters — Fill the PRIMARY
(red) and SUPPLY PUMP fuel filter
elements with clean No. 2 fuel oil. Do not fill
the filter elements through the center hole;
each must be filled using the outer holes.
Lubricate the gaskets with oil and install the
filters.
Engine Lubrication System
GENERAL INSTRUCTIONS
A lubricating oil film coats rotating parts and
bearings of an overhauled engine, but this may
not provide sufficient lubrication when the engine
is started for the first time. The following briefly
describes the recommended procedure for
ensuring proper lubrication.
Do not mix brands or types of lubricants.
Chemical additives may be incompatible and may
contribute to the formation of sludge, acid or
hardening.
5-111.bk Page 462 Monday, July 10, 2006 2:26 PM
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