C - Peterbilt Motors Company

5
Maintenance Procedures
Replacing Engine Oil Filters
1. full-flow Oil Filter
2. centrifugal bypass Oil Filter
Your engine is equipped with a full-flow
oil filter and centrifugal bypass oil filter.
Both filters are designed to capture
contaminants and remove deposits
from the oil to prolong the life of
internal moving components. Always
use quality engine lubricating oils in
conjunction with the appropriate oil
drain and filter change intervals. Refer
to “Maintenance Schedule” beginning
on page 5-4 for the recommended oil
and filter change service interval.
5-22
Oil Filter Removal Preparation
1. Disconnect the chassis battery
cable at the negative battery
terminal.
CAUTION: Before
beginning to remove
and/or disconnect any
components, wait at least
5 minutes after the key
switch is turned OFF
for the aftertreatment
Diesel Emission Fluid
(DEF) dosing system
to purge the DEF from
the system. The DEF
system purges to prevent
damage from freezing.
Failure to comply may
result in equipment or
property damage.
WARNING: Electrical
shock hazard: Never
disconnect the battery
clamp when the engine is
running. Disconnecting
the battery clamps while
the engine is running may
result in death, personal
injury or equipment
damage from electrical
arching or damage to
electrical components.
Turn off the engine and
place the ignition switch
in the OFF position before
disconnecting the battery
clamps. Do not place any
tools or other materials
on top of or close to
the batteries. This can
cause a dangerous high
current short circuit
and, in the worst case, a
battery explosion. Keep
all objects away from
the battery terminals.
Always break the contact
between the battery
clamp and the negative
terminal before working