SAFETY - How to open the hood 1 Under Hood Air Intake? The option for under hood intake is a switch on the dash that allows the operator to use air from under the hood in the event the air filter housing's inlet is blocked by snow or ice. WARNING DO NOT let go of the hood while it closes. Close the hood in a controlled manner which requires hands firmly grasping the hood and feet on a sta- ble, non-slip, surface. Failure to control the hood as it closes may result in death or personal injury WARNING DO NOT open the under hood air door with hands. This door is held closed with a spring which may pull the door closed unexpectedly. Failure to comply may result in personal injury.
Pull the lever out to disengage the hood hold-open device. WARNING Always ensure the hood hold open latch is engaged to keep the hood fully open any time anyone gets under the hood for any reason. Failure to do so may cause the hood to close uncon- trollably which may result in death or personal injury. CAUTION Only operate the under hood intake air switch when outside temperatures are below 32°F (0°C). Engaging the under hood air intake while temperatures are above freezing may result in engine damage. WARNING When closing the hood, be sure that you maintain the same point of contact (top of hood) to control the movement of the hood as it closes.
Gently lower the hood into place to avoid damage to the hood or cab. Before closing the hood, be sure the area is clear—no people or objects are in the way. Failure to do so may result in death or personal injury. The switch is directly wired to a solenoid on the air filter housing. This air solenoid (normally closed) will engage when signaled which will supply air to a piston. This air pressure will overcome a spring 22 Y53-6126-1A1 (01/21)