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© 2019 Pierce Manufacturing Inc. All Rights Reserved.

Pierce Pumper / 3-33

OPERATION

3. Emergency shut-off.

a. Push IN the red button to return engine speed to IDLE.
b. Practice hitting the emergency stop button until the movement becomes automatic. In an emergency you 

want to react automatically.

c. If you fail to shift from ROAD to PUMP, you can override the parking brake as you increase engine RPMs. 

If you feel the apparatus move, IMMEDIATELY push IN the emergency stop. It drops engine speed to IDLE. 
The wheel chocks and parking brake will then hold the vehicle in place.

4. Increase engine speed using optional electronic throttle.

a. Adjust engine speed using toggle switch.
b. Press red button to return to IDLE. Red button is also an Emergency Stop. Practice using the Emergency 

Stop.

5. Observe master discharge pressure gauge.

Increase or decrease engine speed to maintain the pump pressure you want. Watch the master discharge 
Gauge and adjust the engine speed faster or slower to get the pressure you want.

6. Activate discharge relief valve.

For apparatus equipped with an ON/OFF switch, turn the discharge relief valve ON. 
The discharge relief valve prevents pressure spikes. It limits the maximum discharge pressure by opening a gate 
and bypassing water back to inlet side of pump. 
If the discharge pressure goes above the relief valve setting, water goes from the discharge manifold back into 
the intake manifold until the water pressure in the discharge manifold drops below the relief pressure.

Emergency Stop button drops the engine to IDLE only.
Engine at IDLE creates water pressure. 

If an emergency requires that water stop flowing, close the discharge valves. 

If an emergency requires that the engine stop, turn OFF the ignition switch in the cab.

Press red shutdown button on the hand throttle after use to make sure it is set to lowest possible idle 
speed.
Hand throttle left at a higher speed will return to that speed when hand throttle control is resumed.

Practice hitting the Emergency Stop switch.
The Emergency Stop switch will drop the engine RPM to IDLE.
Practice this action until it is second nature, so you can bring engine to IDLE in an emergency.

Summary of Contents for Pumper

Page 1: ...2019 Pierce Manufacturing Inc Part No PM P OM260 0319 Operation Maintenance Manual Pierce Pumper...

Page 2: ......

Page 3: ...ARNING LABELS 1 4 1 8 2 HIGH PRESSURE WATER STREAM 1 5 1 8 3 INTAKE AND DISCHARGE CAP REMOVAL 1 6 1 8 4 HOSE TESTING 1 6 1 9 SAFETY DEFECT REPORTING 1 7 CHAPTER 2 BEFORE PLACING IN SERVICE Pump Chart...

Page 4: ...3 7 DISCHARGING FOAM 3 21 3 8 DISCHARGING WATER 3 21 3 8 1 DISCHARGE AND DRAIN BLEEDER VALVES 3 21 3 8 2 CONNECTING ATTACK LINE HOSE 3 22 3 8 3 CHARGING LINE 3 23 3 9 OPERATING FROM A STATIC DRAFT WAT...

Page 5: ...NDING WATER FLOW OPERATION 3 41 3 18 1 SHUTTING OFF WATER FLOW 3 41 3 19 SECURING PUMP SYSTEM 3 41 CHAPTER 4 MAINTENANCE General Maintenance 4 1 ANNUAL TESTING 4 1 4 2 INSPECTION CLEANING AND MAINTENA...

Page 6: ...TABLE OF CONTENTS iv Pierce Pumper 2019 Pierce Manufacturing Inc All Rights Reserved...

Page 7: ...d and follow the instructions found in Pump manufacturer s operator and maintenance manuals Operator and maintenance manuals for pumping components such as valves pressure controllers flow controls ma...

Page 8: ...is critically important that you turn each control valve gate or switch etc ON and OFF or OPEN and CLOSED You want to make sure they work now You don t want to find out at a fire ALWAYS check the cont...

Page 9: ...ustomer Service 2600 American Drive P O Box 2017 Appleton WI 54913 888 Y PIERCE 888 974 3723 www piercemfg com and www pierceparts com International Fire Service Training Association for textbooks and...

Page 10: ...time to avoid the hazard so you develop a habit to avoid the hazard DANGER signals an imminently hazardous situation that if not avoided will result in death or serious injury WARNING signals a poten...

Page 11: ...n seek medical help immediately The high pressure injection of a fluid such as water hydraulic oil grease and paint constitutes a medical and surgical emergency requiring access to appropriate special...

Page 12: ...hen remove the cap slowly and carefully Do not stand in front of the cap If you remove a cap that has pressure trapped behind it the cap may fly off with great force injuring yourself or others 1 8 4...

Page 13: ...ufacturing Additionally should any information in this manual prove to be seriously inconsistent with your Pierce fire apparatus also inform Pierce Customer Service Most service and support issues sho...

Page 14: ...TO THE OWNER 1 8 Pierce Pumper 2019 Pierce Manufacturing Inc All Rights Reserved...

Page 15: ...during pump operation 2 2 Check Adjustment of Intake Relief Valve Figure 2 1 Typical Intake Relief Valve relief outlet pipe with threaded end shown on right POM0016 0017 0018 All pumps have a relief...

Page 16: ...r to supply water at the desired pressure 1 Increase inlet pressure until the master inlet pressure gauge reads the relief pressure you want 2 With a wrench slowly open the adjusting screw on the valv...

Page 17: ...id a slip and fall and potential injury to yourself and others Enter and exit cabs slowly deliberately and carefully NEVER jump to ground You can injure yourself ALWAYS maintain three points of contac...

Page 18: ...ody will become an electrical path to ground if you stand with one foot on the platform and one on the ground or with both feet on the ground and your hands on the apparatus If the aerial device conta...

Page 19: ...straps hook and loop straps fabric covers webbing mesh wind deflectors and other material restraints or combination of restraints Operational methods vary between fire departments and methods of rest...

Page 20: ...u learn the maximum MPH at which hose can be laid out 3 2 5 Hose Deployment If hose is to be laid from a moving apparatus first test the packing method under controlled conditions to learn the MPH at...

Page 21: ...ar of the hose being laid before driving the vehicle When laying hose limit vehicle speed to 5 MPH to minimize risk to personnel equipment and bystanders Avoid kinks crimps and twists when laying fire...

Page 22: ...ectrical lines Never park under electrical lines 3 3 2 Positioning on Roads Position the apparatus so that it protects emergency personnel Many departments choose to park the apparatus at an angle so...

Page 23: ...er case in 2WD ONLY Vehicle will move if the pump is engaged when in 4WD Death or injury may occur Pump Engagement Cummins or Detroit Engines 1 With the engine running at idle shift transmission to NE...

Page 24: ...ssure 80psi 551 kPa or above Parking Brake Applied Wheels Chocked Pump may not engage if gear teeth fail to mesh In this case Shift to N Shift to R Shift to N Shift to D Transmission should shift into...

Page 25: ...time vehicle is parked 4 Keep feet off pedals Keep pump water cool Do not operate the pump for extended periods with the discharge valves closed or the pump may overheat The pump is fitted with a the...

Page 26: ...ely after D4 displays on the shift pad If brake is not released the transmission will drop out of fourth gear lock up If any pedal is depressed while in fourth gear lock up transmission will drop out...

Page 27: ...unning pump ONLY operate manual pump shift when BOTH automatic transmission AND pump shift control are in NEUTRAL Engine or transmission damage can occur Manual Pump Shift Override optional 1 Position...

Page 28: ...or push out the manual shift T handle using steady pressure Read the instruction plate near the manual T handle for operation method 5 Engage the manual shift handle 6 Place pump shift control in PUM...

Page 29: ...remained at IDLE If the engine speed has increased the pump panel throttle control may not have been properly reset to IDLE Exit the cab and reset hand throttle or pressure governor to IDLE 6 Check s...

Page 30: ...ed has increased the pump panel throttle control may not have been properly reset to IDLE Exit the cab and reset hand throttle or pressure governor to IDLE 6 Check speedometer Speedometer should read...

Page 31: ...The pump speed will then be controlled only by the driver s throttle pedal That is the manual override 3 Chock the wheels NOTE Chock front and rear of tire every time vehicle is parked Keep pump water...

Page 32: ...ping immediately after engaging pump Recirculate water if hoses are not ready to keep water cool Running pump dry for more than a few minutes will cause pump damage 4 Engage the pump Activate the PTO...

Page 33: ...all discharge and inlet valves SLOWLY to prevent water hammer 4 Move the PTO pump control to the OFF position 5 Check pump indicator lights If the PUMP ENGAGED light is on the pump was not successfull...

Page 34: ...tank to pump valve The tank to pump valve controls the flow between the water tank and pump inlet With this valve OPEN water from the tank floods the pump intake manifold and slowly primes the pump 2...

Page 35: ...into the water tank or turn OFF pump b Watch tank temperature gauge if your fire department selected this option When temperature reaches 175 F then add fresh cool water or turn OFF pump 4 Open recir...

Page 36: ...eft to OPEN the valve To CLOSE the valve again turn the knob one quarter turn clockwise to the right Many departments leave this valve fully OPENED during summer and CLOSED during winter CLOSE the eng...

Page 37: ...eder Valves 1544 POM0021 Discharge Valve Operation T Handle Lever Hand Wheel Electronic Rotate clockwise to right to unlock Rotate counter clockwise to left to unlock Rotate counter clockwise to left...

Page 38: ...EFORE the cap is removed Otherwise any trapped air pressure can blow the cap off with great force and injure someone 3 Open discharge cap vent if one is present Some discharge cape have a pressure rel...

Page 39: ...oid a pressure spike in other hoses OPEN discharge valve one half OPEN until attack line is filled with water and air is escaped from hose Observe personnel on the end of the attack line while the hos...

Page 40: ...hould be submerged at least 1ft or 30cm but 4 inches or 10cm above the bottom of the bed j Use caution to keep mud sand stones or other materials from blocking the end of the hose k Avoid a lift great...

Page 41: ...apparatus or from a draft source such as a pond river or portable tank A gate intake allows you to maintain water flow at the same pressure at the same time you switch to an external water supply In t...

Page 42: ...e that is connected to the highest point of the pipe Opening the intake air bleed valve allows air trapped in the intake pipe to escape Rotate the knob one quarter turn counterclockwise to the left to...

Page 43: ...Air will be sucked through with a steady flow of water If a large slug of air enters the pump the pump can lose prime Centrifugal pumps cannot pump air If prime is lost the attack lines will lose wat...

Page 44: ...mp water cool Do not operate the pump for extended periods with the discharge valves closed or the pump may overheat The pump is fitted with a thermal relief valve to help prevent overheating 1 Close...

Page 45: ...ischarge valve and discharge drain valve Water will flow out the discharge drain valve once the air escapes Close the drain valve once air has escaped 6 Charge the intake hose OPEN the water valve on...

Page 46: ...k OR increase engine speed to maintain pressure Always keep the water tank full so that a steady discharge flow can be maintained if the intake supply must be shifted 3 13 Pump Priming Problem Solutio...

Page 47: ...es fittings manifolds etc You must determine a pump pressure that will provide the desired nozzle pressure based on the number and size of attack lines that are deployed Determine this pressure for al...

Page 48: ...shift complete OR Parking brake applied Transmission is in NEUTRAL If either set of conditions fails the hand throttle will be disabled Engine speed control is then controlled ONLY by the foot thrott...

Page 49: ...t the pressure you want 6 Activate discharge relief valve For apparatus equipped with an ON OFF switch turn the discharge relief valve ON The discharge relief valve prevents pressure spikes It limits...

Page 50: ...to maintain the set pressure NOTE For additional information concerning the operation of specific pressure governors refer to the following PV P TM350 Pierce Pressure Governor Operator s Guide on CD R...

Page 51: ...el Electronic Fire Commander in Service Manual 1 Select throttle RPM control mode 2 Adjust desired engine speed RPM Press the red button to cancel the current mode and return the engine speed to idle...

Page 52: ...additional information consult your Fire Department standard operating procedures 3 Maintain 20 in Hg vacuum draft supply When operating from draft always maintain 20 in Hg of vacuum or less Intake v...

Page 53: ...m Stop Engine Light If the Stop Engine light turns ON the engine s ECU electronic control unit has detected a critical error condition That means engine failure is possible at any moment Read and stud...

Page 54: ...es at the pump panel and compare with the readings of those in the cab Compare both readings to normal operating parameters This will help you make the decision to continue to run the apparatus or rep...

Page 55: ...E setting for high flow at moderate pressure Shift the Transfer Valve to the PRESSURE setting for moderate flow at high pressure 3 17 2 Mode Selection with Pressurized Sources NOTE For departments ope...

Page 56: ...Reserved 3 17 3 Priming a Two Stage Pump Shift the Transfer Valve to the VOLUME setting when priming a two stage pump Changing between stages on a two stage pump can cause a pressure spike in discharg...

Page 57: ...System The pumping system should be drained during cold weather See Draining the Pumping System on page 4 2 for additional information Securing Pump System 1 Open drain valves and bleed valves Open al...

Page 58: ...OPERATION 3 42 Pierce Pumper 2019 Pierce Manufacturing Inc All Rights Reserved...

Page 59: ...rocedure for the daily weekly monthly and annual inspection and maintenance of this fire apparatus after careful review of all documentation provided Inspection and maintenance requirements for compon...

Page 60: ...n Figure 4 1 will empty both the discharge and inlet manifolds of water when opened 4 Open discharge line drains Locate each discharge line and open the drain valves 5 Open intake line drains Locate e...

Page 61: ...n fresh water 2 Cap all intake and discharge connections Cap all connections to hold the clean water from the tank in the pumping system 3 Open all intake and discharge valves Open all control valves...

Page 62: ...ate the primer to get clear water through the primer valve and pump 6 Activate pressure relief valve Activate the pressure relief valve with the pilot valve to flush that system and move the transfer...

Page 63: ...d or oil The fluid reservoir Figure 4 2 is normally located in the pump house behind an access panel or access door For oil type priming pumps the lubricant is expelled with the air as the pump is pri...

Page 64: ...ter from the valve daily and before operating apparatus in freezing temperatures Frozen water will damage the valve 4 10 Master Gauge Ports Vacuum and pressure test ports are provided for use during t...

Page 65: ...peed Apparatus Not Equipped with a Pressure Governor 3 32 Create a Pump Chart 2 1 Custom Products 1 2 D Daily Checks 1 2 Dangers 1 4 Determining Discharge Pressure 3 31 Discharge Relief Valve Drain Op...

Page 66: ...ns 1 3 PTO Driven Pump 3 15 Pump Pressure Control 3 31 With Pressure Governor Not Pumping 3 35 With Pressure Governor Pumping 3 34 Without Pressure Governor 3 32 Pump Priming Problem Solutions 3 30 Pu...

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