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OM-06687-01
May 8, 2014
Rev. B 08‐10‐16
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
PAH SERIESr PUMP
MODEL
PAH16A60C-B-C18
GORMAN‐RUPP PUMPS
www.grpumps.com
e
2014 Gorman‐Rupp Pumps
Printed in U.S.A.

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Summary of Contents for GORMAN-RUPP PAH Series

  • Page 1 OM-06687-01 May 8, 2014 Rev. B 08‐10‐16 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST PAH SERIESr PUMP MODEL PAH16A60C-B-C18 GORMAN‐RUPP PUMPS www.grpumps.com 2014 Gorman‐Rupp Pumps Printed in U.S.A.
  • Page 2 Register your new Gorman‐Rupp pump online at www.grpumps.com/register. Valid serial number and e‐mail address required. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. RECORD YOUR PUMP MODEL AND SERIAL NUMBER Please record your pump model and serial number in the spaces provided below.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I - 1 SAFETY ‐...
  • Page 4 TABLE OF CONTENTS (continued) Seal Cavity and Bearing Lubrication ........PAGE C - 4 Bearing Temperature Check .
  • Page 5: Introduction

    PAH SERIES OM-06687 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. HAZARD AND INSTRUCTION Read this manual carefully to learn how to safely DEFINITIONS install and operate your pump. Failure to do so could result in personal injury or damage to the The following are used to alert maintenance per­...
  • Page 6: Safety - Section A

    PA SERIES OM-06687 SAFETY ‐ SECTION A This information applies to Prime Aire the positive battery cable before per­ Series pumps. Refer to the manual ac­ forming any maintenance. Failure to do companying the engine or power so may result in serious personal injury. source before attempting to begin oper­...
  • Page 7 OM-06687 PA SERIES certain that the pump and all piping or fingers or tools, causing severe injury to hose connections are tight, properly personnel. supported and secure before operation. Make sure the pump is level. Lower jack Do not operate the pump against a stands and chock the wheels, if so closed discharge valve.
  • Page 8: Installation - Section B

    PAH SERIES OM-06687 INSTALLATION - SECTION B Review all SAFETY information in Section A. configuration, and priming must be tailored to the specific application. Since the pressure supplied Since pump installations are seldom identical, this to the pump is critical to performance and safety,...
  • Page 9: Battery Installation

    OM-06687 PA SERIES c. Carefully read all tags, decals, and markings POSITIONING PUMP on the pump assembly, and perform all duties indicated. Note that the pump shaft rotates in the required direction. Lifting Pump unit weights will vary depending on the mounting and drive provided.
  • Page 10: Suction And Discharge Piping

    PAH SERIES OM-06687 to secure them when filled with liquid and under pressure. Gauges If the pump has been mounted on a mov­ able base, do not attempt to operate the The pump is drilled and tapped for installing dis­...
  • Page 11: Sealing

    OM-06687 PA SERIES Sealing air to escape from the liquid before it is drawn into the suction inlet. Since even a slight leak will affect priming, head, If two suction lines are installed in a single sump, and capacity, especially when operating with a the flow paths may interact, reducing the efficiency high suction lift, all connections in the suction line of one or both pumps.
  • Page 12: Discharge Lines

    PAH SERIES OM-06687 Figure 2. Recommended Minimum Suction Line Submergence vs. Velocity DISCHARGE LINES Siphoning If the application involves a high discharge head, gradually close the discharge Do not terminate the discharge line at a level lower throttling valve before stopping the pump.
  • Page 13: Coupled Drives

    OM-06687 PA SERIES handling. Pumps must be checked and realigned before operation. Before checking alignment, tighten the pump casing feet and/or pedestal feet. When checking alignment, shut down the engine and disconnect the positive battery cable to ensure that the pump will remain inoperative.
  • Page 14 PAH SERIES OM-06687 lowers (floats) with the liquid level, thus activating to the standpipe in the sump at the approxi­ an enclosed miniature switch. The floats are mate desired liquid level. equipped with a socket type connector that plugs b. In a single float system, the cable can be teth­...
  • Page 15: Operation - Section C

    OM-06687 PAH SERIES OPERATION - SECTION C OPERATION injury during automatic operation. Dis­ connect the positive battery cable be­ fore performing any maintenance. Fail­ ure to do so may result in serious per­ sonal injury. This pump is designed to handle most Consult the engine operations manual before at­...
  • Page 16: Priming

    OM-06687 PAH SERIES engine in an explosive atmosphere. OPERATION IN EXTREME HEAT When operating an internal combustion The safety shutdown system will automatically engine in an enclosed area, make sure stop the unit if engine operating temperature ex­ exhaust fumes are piped to the outside.
  • Page 17: Strainer Check

    OM-06687 PAH SERIES Overheating can occur if operated with the valves Reduce the throttle speed slowly and allow the en­ in the suction or discharge lines closed. Operating gine to idle briefly before stopping. against closed valves could bring the liquid to a In the manual mode, reduce the throttle speed boil, build pressure, and cause the pump to rup­...
  • Page 18: Periodic Checks

    OM-06687 PAH SERIES been returned to the `OFF' position for at least 10 to operate properly. Make certain that the bearing seconds. lubricant is of the proper viscosity and at the cor­ rect level (see LUBRICATION in Section E, Main­...
  • Page 19 OM-06687 PAH SERIES TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this manual. 2. Shut down the engine and discon­ nect the positive battery cable to en­...
  • Page 20 OM-06687 PAH SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Check strainer and clean if neces­ Strainer clogged. PUMP STOPS OR FAILS TO DELIVER sary. RATED FLOW OR Check and clean check valve. Discharge check valve clogged. PRESSURE (cont.) Suction intake not submerged at Check installation and correct proper level or sump too small.
  • Page 21 OM-06687 PAH SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY BEARINGS RUN Bearing temperature is high, but Check bearing temperature regu­ TOO HOT within limits. larly to monitor any increase. Low or incorrect lubricant. Check for proper type and level of lubricant.
  • Page 22 OM-06687 PAH SERIES Preventive Maintenance Schedule Service Interval* Item Daily Weekly Monthly Semi‐ Annually Annually General Condition (Temperature, Unusual Noises or Vibrations, Cracks, Leaks, Loose Hardware, Etc.) Pump Performance (Gauges, Speed, Flow) Bearing Lubrication Seal Lubrication (And Packing Adjustment, If So Equipped) V‐Belts (If So Equipped)
  • Page 23 OM-06687 PAH SERIES PUMP MAINTENANCE AND REPAIR - SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL PAH16A60C-B-C18 Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per­...
  • Page 24 OM-06687 PAH SERIES PARTS PAGE ILLUSTRATION Figure 1. Pump Model PAH16A60C-B-C18 PAGE E - 2 MAINTENANCE & REPAIR...
  • Page 25 OM-06687 PAH SERIES PARTS LIST Pump Model PAH16A60C-B-C18 (From S/N 1565911 Up) If your pump serial number is followed by an “N”, your pump is NOT a standard production model. Contact the Gorman‐Rupp Company to verify performance or part numbers.
  • Page 26 OM-06687 PAH SERIES ILLUSTRATION Figure 2. 46143-174 Power Unit PAGE E - 4 MAINTENANCE & REPAIR...
  • Page 27 OM-06687 PAH SERIES PARTS LIST 46143-174 Power Unit ITEM PART NAME PART MAT'L ITEM PART NAME PART MAT'L NUMBER CODE NUMBER CODE BASE/FUEL TANK ASSY 41553-049 24150 ENGINE OIL DRAIN KIT 46346-389 CAT ENGINE 29236-481 HEX HEAD CAP SCREW B1210...
  • Page 28 OM-06687 PAH SERIES ILLUSTRATION Figure 3. 46143-174 Power Unit PAGE E - 6 MAINTENANCE & REPAIR...
  • Page 29 OM-06687 PAH SERIES PARTS LIST 46143-174 Power Unit ITEM PART NAME PART MAT'L ITEM PART NAME PART MAT'L NUMBER CODE NUMBER CODE BASE/FUEL TANK ASSY 41553-049 24150 ENGINE OIL DRAIN KIT 46346-389 CAT ENGINE 29236-481 HEX HEAD CAP SCREW B1210...
  • Page 30 OM-06687 PAH SERIES ILLUSTRATION Figure 4. PAH16A60C-B-(C18) Pump Assembly PAGE E - 8 MAINTENANCE & REPAIR...
  • Page 31 OM-06687 PAH SERIES PARTS LIST PAH16A60C-B-(C18) Pump Assembly ITEM PART NAME PART MAT'L ITEM PART NAME PART MAT'L NUMBER CODE NUMBER CODE PUMP ASSY 46133-434 BLIND FLANGE ASSY 42111-358 HOSE ASSY 46341-035 LOCK WASHER 15991 LOCK WASHER 15991 HEX HD CAP SCREW...
  • Page 32 OM-06687 PAH SERIES ILLUSTRATION Figure 5. 46133-434 Pump End Assembly PAGE E - 10 MAINTENANCE & REPAIR...
  • Page 33 OM-06687 PAH SERIES PARTS LIST 46133-434 Pump End Assembly ITEM PART MAT'L PART NAME NUMBER CODE PUMP CASING SEE NOTE BELOW --- REPAIR ROTATING ASSY 44163-580 PIPE PLUG 15079 PIPE PLUG 15079 STUD C1211 15991 FLAT HEAD CAP SCREW F0403...
  • Page 34 OM-06687 PAH SERIES ILLUSTRATION Figure 6. 44163-580 Repair Rotating Assembly PAGE E - 12 MAINTENANCE & REPAIR...
  • Page 35 OM-06687 PAH SERIES PARTS LIST 44163-580 Repair Rotating Assembly ITEM PART MAT'L PART NAME NUMBER CODE IMPELLER 38614-802 11010 MECH SEAL 25285-825 SHAFT SLEEVE 31163-025 17000 SHAFT SLEEVE O‐RING 25154-042 SEAL PLATE 38272-721 11010 SEAL CAVITY SIGHT GAUGE S1471 BEARING CAVITY SIGHT GAUGE...
  • Page 36 OM-06687 PAH SERIES ILLUSTRATION Figure 7. 46181-914 Air Compressor Assembly PAGE E - 14 MAINTENANCE & REPAIR...
  • Page 37 OM-06687 PAH SERIES PARTS LIST 46181-914 Air Compressor Assembly ITEM PART MAT'L PART NAME NUMBER CODE VANAIR 60 CFM AIR COMPRESSOR 26813-114 MOUNTING BRACKET 38138-090 13000 LOCK WASHER 21171-510 HEX HEAD CAP SCREW 22645-136 SHAFT COLLAR 24118-035 ADAPTER SHAFT 38513-420...
  • Page 38 OM-06687 PAH SERIES ILLUSTRATION Figure 8. 48275-006 Priming Chamber Kit ITEM PART MAT'L PART NAME NUMBER CODE BALL VALVE 26631-054 STREET ELBOW RS16 11999 PRIMING CHAMBER ASSEMBLY 46112-709 HEX NUT 15991 LOCK WASHER 15991 STUD C0809 15991 BAFFLE 31113-011 17000...
  • Page 39 OM-06687 PAH SERIES ILLUSTRATION Figure 9. 46112-709 Priming Chamber Assembly ITEM PART MAT'L PART NAME NUMBER CODE PRIMING VALVE 26664-007 -ORIFICE BUTTON 26688-021 HEX HD CAPSCREW B0806 15991 LOCKWASHER 15991 PRIMING VALVE GASKET 38683-657 19060 PRIMING CHAMBER 38343-020 10000 STRAINER ASSY...
  • Page 40 OM-06687 PAH SERIES PUMP AND SEAL DISASSEMBLY lishing that neither personal safety nor pump integrity are compromised by AND REASSEMBLY such practices. Review all SAFETY information in Section A. Follow the instructions on all tags, label and de­ cals attached to the pump.
  • Page 41 OM-06687 PAH SERIES Remove the hex nut and lock washer securing the damaged when lifting. Suction and dis­ orifice button to the linkage bar and unscrew the charge hoses and piping must be re­ orifice button from the linkage bar.
  • Page 42 OM-06687 PAH SERIES Removing Air Compressor Setscrew (Figure 4) Further disassembly of the pump requires remov­ Lathe Dog Impeller ing the air compressor assembly (11) from the ro­ Shaft tating assembly (2, Figure 5). Shaft Key Disengage the hardware (7) and remove the belt “V”...
  • Page 43 OM-06687 PAH SERIES Slide a pair of stiff wires with hooked ends along race and bearing race spacer from the outboard the shaft and hook the stationary seat from the bearing. back side. Pull the stationary seat and O‐ring from Reach into the pedestal with a pair of snap ring pli­...
  • Page 44 OM-06687 PAH SERIES bearings. This may scratch the balls or NOTE races and cause premature bearing fail­ If a hot oil bath is used to heat the bearings, both the oil and the container must be absolutely clean. If ure.
  • Page 45 OM-06687 PAH SERIES Install the oil seal (9A) in the pedestal with the lip sprocket to the shaft. Torque the setscrews to 66.7 positioned as shown in Figure 6. Make sure the oil ft. lbs. (800 in. lbs. or 9,2 m. kg.).
  • Page 46 OM-06687 PAH SERIES Seal Reassembly and Installation Reusing an old seal could result in prema­ ture failure. (Figures 6 and 12) Handle the seal parts with extreme care to prevent Clean the seal cavity and shaft with a cloth soaked damage.
  • Page 47 OM-06687 PAH SERIES O‐RING IMPELLER SHAFT SLEEVE IMPELLER IMPELLER BELLOWS SHAFT SHAFT SLEEVE SPRING O‐RING RETAINER SPRING SEAL PLATE ROTATING STATIONARY ELEMENT SEAT Figure 12. Seal Assembly cure the seal plate to the pedestal with the previ­ ously removed hardware (11 and 12).
  • Page 48 OM-06687 PAH SERIES Impeller Installation suction spool (26) to the pump casing with the pre­ viously removed hardware (31 and 32). (Figure 6) Secure the suction spool to the support assembly Inspect the impeller and replace it if cracked or (24) with the previously removed hardware (13 and badly worn.
  • Page 49 OM-06687 PAH SERIES Install the strainer (6) and priming valve gasket (4). through the sight gauges (6A) and maintain it at the middle of the gauges. When lubrication is required, Lower the float into the priming chamber (5) and add SAE No. 30 non‐detergent oil through the hole secure the priming valve with the previously re­...
  • Page 50 For Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419-755-1280 Canada: 519-631-2870 International: +1-419-755-1352 GORMAN‐RUPP PUMPS...

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Pah16a60c-b-c18

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