Peterbilt Medium Duty Trucks Operator's Manual after 1-07

Electrical System
The battery compartment is located on the left side of the
vehicle, under the cab access steps.
The cover is held in place by two latches one on each side.
WARNING! Always reinstall the battery compartment
cover (step) before entering the cab. Without
the step you could slip and fall, resulting in
possible injury to yourself.
BATTERY COVER
LATCH
(BOTH SIDES)
Preventive Maintenance
WARNING! Before attempting any work on the
batteries or electrical system, remove all jewelry.
If metal jewelry or other metal comes in contact
with electrical circuits, a short circuit may occur
causing you to be injured, as well as electrical
system failure and damage.
Removing and Installing Batteries:
1. Be sure all switches on the vehicle are turned OFF.
2. Disconnect negative ground cable.
3. Disconnect positive cable.
4. Unscrew bolt of holding plate with open end wrench.
To reinstall batteries:
1. Place batteries in vehicle and tighten bolt of holding
plate.
2. Reconnect positive cable.
3. Reconnect negative ground cable.
Battery Compartment
02601
Battery Care
Regular attention to the charging system will help prolong the
service life of the batteries. Here are some common causes
of battery failure:
– 184 – Y53-6008 Medium Duty (R10/06)