Operation & Maintenance Manual - Pierce Pumper

The owner is responsible for using, servicing, and maintaining the vehicle properly.

Essential procedures a vehicle owner performs daily to manage their fire truck.

Important cautions, warnings, and signals related to vehicle operation.

Warnings related to the potential danger of high water pressure emitted from a fire engine hose

Procedures to execute while performing hose assessments for fire suppression efficiency

Associations that provide training, standards and support regarding equipment maintenance.

Process for reporting concerns or damage relating to firefighting equipment safety.

Staying up-to-date on product and safety information regarding firetruck operation and maintenance.

Procedure for engaging the PTO-driven pump when the vehicle is stationary.

Label indicator on vehicles with PTO-driven pumps that the transmission must be in neutral.

Essential step to apply the parking brake before PTO pump engagement.

Practice of securing the vehicle's wheels to prevent movement during pump operation.

Control on the driver's panel, used to activate PTO-driven pump engagement.

Indicator light that illuminates when the PTO is engaged and the pump is spinning.

Practices to keep pump water cool to prevent overheating, like recirculation and not operating with closed discharge too long.

Operation where the vehicle moves while the pump is on, which is specifically dangerous.

The line that prevents water from flowing to the pump, requiring tank to pump valve or water source.

A valve that allows engine heat to be transferred to pump water, enhancing cooling in hot conditions.

Turning knob counter-clockwise opens the valve, enabling operation.

A device that signals pump overheating. Must take action!

Discharge valves are operated with hand wheels or levers; clockwise to close, counter-clockwise to open. Electronic controls may exist.

Engine cooler valve should be closed for better cab heating during cold temperatures.

Open engine cooler valve for more engine cooling with increased air temperatures (above 80 degrees F).

Address pump overheating symptoms by adding fresh water, recirculating, draining water, or, if needed, turning the engine OFF.

Method for filling and operating attack lines connected to a fire pump.

Unexpected increases in water pressure, potentially damaging hoses and causing injury.

Pressure waves caused by rapid valve closure, potentially damaging pump and system components.

Pumping from a stationary water source, known for the high demands.

A malfunction caused by sustained operation with closed discharge valves.

Device tracking water level in the water tank supplying the pump.

Fine-tuning the discharge valve after initial filling to ensure consistent water flow.

Valves controlling water flow from the pump and drains for removing excess water.

Closing the tank-fill or recirculating valves prevents the water tank from overflowing.

To prevent pump overheating, ensure discharge valves are open when the pump is operated.

When switching from a water tank to an external source (hydrant), stop water flow to discharge lines.

Before changing water sources, close the discharge valves to safeguard personnel from sudden water pressure changes.

Reduce pump speed to IDLE to prevent damage to pump seals and bearings when water supply is stopped.

Prevent water from escaping the tank's inlet before connecting an intake hose by shutting off the valve before opening the intake cap.

Open hydrant valve and vent hose for 30 seconds to flush out debris before connecting it to the pump.

To start pumping water properly, open the tank fill or discharge valve to expel air from the intake hose.

Regulating engine speed to control pump pressure. This is done by adjusting engine speed or using a pressure governor.

Never exceed the pressure rating of hoses and nozzles to prevent explosions.

Pump pressure depends on engine speed, pump size, and discharge/intake/system restrictions.

A chart recording pump pressure for various fire fighting situations (based on nozzle pressure and attack lines).

Pump pressure control without an automatic pressure governor requires manual engine speed adjustments.

A light that indicates when engine RPMs can be changed on the pump panel.

Two conditions activate the interlock lamp: Parking brake applied and transmission in 4th gear lockup OR Pump Shift Complete.

If the hand throttle fails during pumping, use the foot pedal in the cab to maintain operation.