2 of 34
03103436-A10030 Rev. B
NOTICE
Read and understand the instructions before starting work.
Keep all fasteners for reinstallation unless otherwise noted.
This document does NOT address removing work tables, cup holders, or other optional
equipment to gain access to the plenum.
!
WARNING
Avoid breathing AC
refrigerant and lubricant vapor or mist. Utilimaster recommends that a
licensed automotive air-conditioning specialist work on the vehicle’s air-conditioning (HVAC)
system.
Operate the engine only in a well-ventilated area.
Use safety stands and/or wheel blocks whenever you are underneath the vehicle.
Always wear safety glasses and other protective equipment as appropriate to the process.
Become familiar with all warning labels.
Be sure that the ignition switch is Off unless otherwise required by the procedure.
Put the transmission in Park (if it is an automatic) and set the parking brake before working on
the vehicle.
Avoid contact with hot metal parts, such as the radiator or exhaust system.
Do NOT smoke while working on the vehicle.
Always remove rings, watches, hanging jewelry, and loose clothing before working on a
vehicle. Tie long hair securely behind your head. Keep yourself and your clothing away from
the radiator fan, belts, and any moving parts when the engine is running.
Keep hands and other objects clear of the radiator fan blades. The electric fan can start at any
time even though the ignition is Off. Disconnect the fan when working under the hood.
Batteries that are improperly connected can potentially explode and discharge acid, causing
vehicle damage and personal injury. Refer to the chassis manufacturer’s instructions. Battery
posts and related accessories may contain lead and lead compounds. Wash hands after
handling. Always wear proper protective equipment when working around batteries.
Safety Considerations