GEAR-PUMP 5123011 - Caterpillar

Moving the Machine
Engine A does not have to be running for machine travel. If the machine is being moved a short distance to begin operation, however, it may be desirable to have engine A running so that it will be warmed up when the operation starting point is reached.Be sure no one is working on or near the machine to prevent injury. Keep the machine under control at all times to prevent injury.Reduce engine speed when maneuvering in tight quarters. 1. Raise the mainframe evenly with elevation control levers (4) so the cutter and moldboard will clear any obstructions. 2. Turn overdrive selectors (6) to the desired position.
Overdrive valve must be in OFF position when operating up or down grades in excess of 8%.
Select the drive range necessary before starting downgrade. Do not change drive ranges while going downhill.A good practice is to use the same drive range going downgrade that would be used to go up the grade.3. Move engine B throttle lever (7) to maximum rpm.
If there is pressure in the track drive system and the park brake control is moved to the OFF position, the machine will lunge either forward or backward. Adjust the travel lever to obtain a zero propel pressure reading to avoid possible personal injury or death.
4. Position travel lever (1) as necessary to obtain a "0" pressure reading on propel pressure gauge (5).5. Sound horn (2) for several seconds to alert nearby personnel.6. Turn park brake selector (3) to OFF.7. Move the travel lever to the desired direction and travel speed.Do not allow the engine to overspeed downhill. Use the travel lever to reduce engine overspeed going downhill.8. Drive the machine forward for best visibility and control.
Stay near the park brake selector. The selector must be instantly turned to ON to prevent a "runaway" if the track pump charge pressure falls below the required limit for control of the track pump.Avoid grades where propel pressure above 24115 kPa (3500 psi) is required.Personal injury could result from the sudden stop of the machine.Be prepared for a sudden stop. Correct the reason for the loss of pressure. Do not move the machine without normal track pump charge pressure.
Speed and Direction Changes
Do not change machine travel from one travel direction to the other without bringing the machine to a complete stop first to avoid possible machine damage.
Overdrive selectors can be switched from OFF to ON while the machine is in motion, however, when switching the selectors from ON to OFF, the machine should be brought to a complete stop.Park Brake System
Personal injury could result from the sudden stop of the machine. The park brake is automatically engaged when the auxiliary system pressure drops below 1240 kPa (180 psi).
Moving the machine with the park brake engaged can cause excessive wear or damage to the brake. If necessary, have the brake repaired before operating the machine.
Elevation Control
System Description
The elevation of the mainframe and the attached cutter can be controlled manually or automatically. When using manual control,