FITTING 3B8494 - Caterpillar

If your vehicle is equipped with an auxiliary brake, follow the instructions provided in the auxiliary brake owner's manual. Failure to follow the instructions during wet or slippery conditions could reduce vehicle control and result in personal injury or death.
These devices should not be used as a primary or service brake.
Certain auxiliary engine braking devices are approved for use on these engines. Refer to the Truck Engine Application and Installation Guide or see your Caterpillar dealer for more information.Engine Retarder
The antilock braking system (ABS) of this vehicle may interrupt the operation of the engine retarder(s) during the ABS actuation. The engine retarder(s) are a BrakeSaver or a compression brake, and/or an exhaust brake. Refer to the literature of the vehicle manufacturer regarding the operation of the ABS.Engine retarders and exhaust type retarders generate maximum retarding power at the engine's maximum rated rpm. As the engine rpm decreases, so does the retarder performance. For maximum available retarding, operators should select a gear which will provide the desired road speed at the highest allowable engine rpm.On long downhill grades, an operator should establish a "control speed". The "control speed" is the speed at which the force that pushes the truck is equal to the retarding force that slows the truck, with little or no use of the service brake.To maximize the benefit of the retarder, the retarder should be used anytime that the operator wants to slow the truck. Retarders should be left in the ON position during all normal operating conditions.The operation of any vehicle under slippery conditions requires caution. This is also true when operating a truck retarder. As a general rule, start with the retarder OFF and ensure that the truck maintains control through natural retardation. Then activate the retarder at the lowest power setting and increase the power setting as the conditions allow.BrakeSaver Operation (3406C Only)
If your vehicle is equipped with both ABS (anti-lock braking system) and BrakeSaver, the brakesaver needs to be manually deactivated during wet or slippery conditions. Failure to do so could reduce vehicle control and result in personal injury or death.
The brakesaver should NOT be used as a primary or service brake. The BrakeSaver is not an emergency or quick stop brake. Use the service brakes for quick stops.
Do not exceed 116°C (240°F) maximum engine oil temperature at any time.Do not exceed 2300 rpm in any situation. Overspeeding can result in serious damage to your engine.
The BrakeSaver provides auxiliary braking to slow the truck and to control speed on long downhill grades. Controlling the slowing or downhill speed of a vehicle by using the BrakeSaver results in reduced wear on brake linings and brake drums. It helps save the service brakes for emergency stopping requirements.No special skills are required to operate or maintain a vehicle equipped with a BrakeSaver. However, it requires the operator to observe the engine speed and BrakeSaver oil temperature.For maximum BrakeSaver effectiveness, select the proper gearing to keep the engine rpm as close to 2300 rpm as possible