CASE & PARTS GP-PLANETARY 3564926 - Caterpillar

Parking Brake
Move the lever forward to release the parking brake. Move the lever to the rear to engage the parking brake.Service Brake
Service Brake Pedal - Push down the service brake pedal to stop or to slow the machine, and to keep the engine from overspeeding on a downgrade.
Front/Rear Brake - Move the lever to the left and push down the service brake pedal. This will apply both front and rear brakes.Move the lever to the right and push down the service brake pedal. Only the rear brake will apply.
Do not use the front wheel brakes for retarding on long steep downgrades. Overheating may occur, causing reduced service life of the brake components.
Secondary Brake (Red Lever)
If the service brake pressure is lost, pull the lever down and hold to apply the secondary brake. Release the secondary brake lever. It will return to the OFF position. Hold the lever down until the machine stops.Retarder
The retarder cannot be used as a parking brake.
Pull the retarder lever down to apply the rear brakes. Push the lever up to release the brakes. The control lever position determines the amount of braking. The further down the control is pulled, the greater the braking effort.Accelerator
The accelerator pedal controls the fuel flow to the engine. The further the pedal is pushed to the floor, the higher the rpm.Transmission Selector Lever
The transmission selector lever controls the forward, neutral or reverse transmission speeds. Shift into reverse only with the machine stopped.