GORMAN-RUPP PAH SERIES Installation, Operation And Maintenance Manual
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- Page 1 OM-06469-02 September 20, 2016 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST PAH SERIES PUMP MODEL PAH3A60-6068H GORMAN‐RUPP PUMPS www.grpumps.com 2016 Gorman‐Rupp Pumps Printed in U.S.A.
- Page 2 Register your new Gorman‐Rupp pump online at www.grpumps.com 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.
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..........PAGE I - 1 SAFETY ‐... - Page 4 TABLE OF CONTENTS (continued) STOPPING ..............PAGE C - 4 Manual Stopping .
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Page 5: Introduction
PAH SERIES OM-06469 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
PAH SERIES OM-06469 SAFETY ‐ SECTION A This information applies to Prime Aire forming any maintenance. Failure to do Series pumps. Refer to the manual ac so may result in serious personal injury. companying the engine before attempt ing to begin operation. - Page 7 OM-06469 PAH SERIES hose connections are tight, properly supported and secure before operation. Make sure the pump is level. Lower jack stands and chock the wheels, if so equipped. Use caution when positioning the skid‐mounted unit to prevent damage Do not operate the pump against a to the fuel tank.
- Page 8 PAH SERIES OM-06469 otherwise be expelled into the atmo could eventually force a regeneration, re sphere. The resultant soot and ash are sulting in loss of performance or even a to trapped in the filter. The Engine Control tal shut down of the engine. Refer to the Unit (ECU) will cause the filter to perform a manual accompanying the engine for a de...
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Page 9: Installation - Section B
PAH SERIES OM-06469 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 10: Battery Installation
OM-06469 PAH 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. Use lifting and moving equipment in good repair and with adequate capacity to prevent injuries to personnel or dam... -
Page 11: Suction And Discharge Piping
PAH SERIES OM-06469 Line Configuration Keep suction and discharge lines as straight as possible to minimize friction losses. Make mini If your pump is equipped with optional oil mum use of elbows and fittings, which substan lubricated bearings, level mounting is es... -
Page 12: Strainers
OM-06469 PAH SERIES mally used in suction lines, but if a valve is used, If there is a liquid flow from an open pipe into the install it with the stem horizontal to avoid air pock sump, the flow should be kept away from the suc... -
Page 13: Discharge Lines
PAH SERIES OM-06469 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 than that of the liquid being pumped unless a si... -
Page 14: Float Switch Installation
OM-06469 PAH SERIES Float Switch Installation pipe is available, attach the float switch cable to the standpipe in the sump at the approxi mate desired liquid level. The Float Switch autostart system employs either a single or double float switch, where a bulb raises or lowers (floats) with the liquid level, thus activating b. - Page 15 PAH SERIES OM-06469 that the liquid in the priming chamber never fully Next, install a drain line between the pump drain freezes. and the wet well or sump. This line must remain submerged in the liquid below the pump down lev...
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Page 16: Operation - Section C
OM-06469 PAH SERIES OPERATION - SECTION C Review all SAFETY information in Section A. cated (see LUBRICATION in MAINTENANCE AND REPAIR). Follow the instructions on all tags, labels and The pump will begin to prime upon startup. The air decals attached to the pump. -
Page 17: Automatic Starting
OM-06469 PAH SERIES box to the “MANUAL ” position, then press and hold If full priming is not achieved, the discharge check the “ENTER” button until the engine starts. valve may be malfunctioning. If this occurs, shut down the pump and consult the separate Mainte... -
Page 18: Operation In Extreme Heat
OM-06469 PAH SERIES Pump Vacuum Check could eventually force a regeneration, re sulting in loss of performance or even a to tal shut down of the engine. Refer to the Read the vacuum gauge with the pump primed and at operation speed. Shut off the pump. The manual accompanying the engine for a de... - Page 19 OM-06469 PAH SERIES Never introduce air or steam pressure into the 2. If the engine oil pressure drops below design pump casing or piping to remove a blockage. This limits. could result in personal injury or damage to the 3. If the engine fails to start within a pre‐set peri...
- Page 20 OM-06469 PAH SERIES Bearing Temperature Check Consult the manual accompanying the engine, and change the oil filter periodically as indicated. If Bearings normally run at higher than ambient tem operated under extremely dusty conditions, peratures because of heat generated by friction.
- Page 21 OM-06469 PAH SERIES TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. 5. Close the suction and discharge valves. 6. Vent the pump slowly and cau tiously. 7. Drain the pump. Before attempting to open or service the pump: 1.
- Page 22 OM-06469 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 23 OM-06469 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 24 OM-06469 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 25 OM-06469 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 PAH3A60-6068H Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 26 OM-06469 PAH SERIES PARTS PAGE ILLUSTRATION Figure 1. Pump Model PAH3A60-6068H PAGE E - 2 MAINTENANCE & REPAIR...
- Page 27 OM-06469 PAH SERIES Pump Model PAH3A60-6068H PARTS LIST (From S/N 1635215 Up) ITEM PART PART NAME NUMBER POWER UNIT 46143-131 PUMP END ASSEMBLY 46183-109 PUMP MOUNTING KIT 48157-055 BATTERY SEE OPTIONS NOT SHOWN: G‐R DECAL GR-06 PRIME AIRE PLUS DECAL...
- Page 28 OM-06469 PAH SERIES ILLUSTRATION Figure 2. Power Unit Kit PAGE E - 4 MAINTENANCE & REPAIR...
- Page 29 OM-06469 PAH SERIES PARTS LIST Power Unit Kit ITEM PART NAME PART ITEM PART NAME PART NUMBER NUMBER J.D. 6068H ENGINE 29224-336 PRESSURE RELIEF VALVE 26662-028 LIFTING BAIL KIT 48274-805 CONNECTOR 26351-065 FUEL PICKUP 29332-145 HOSE ASSEMBLY 46341-422 HOSE BARB FITTING...
- Page 30 OM-06469 PAH SERIES ILLUSTRATION Figure 3. Pump End Assembly PAGE E - 6 MAINTENANCE & REPAIR...
- Page 31 OM-06469 PAH SERIES Pump End Assembly PARTS LIST ITEM PART PART NAME NUMBER REPAIR ROTATING ASSEMBLY 44163-707 HEX NUT D12 15991 LOCK WASHER J12 15991 STUD C1211 15991 PIPE PLUG P08 15079 PUMP CASING SEE NOTE BELOW PRIMING CHAMBER KIT 48275-005 G‐R DECAL...
- Page 32 OM-06469 PAH SERIES ILLUSTRATION Figure 4. Repair Rotating Assembly PAGE E - 8 MAINTENANCE & REPAIR...
- Page 33 OM-06469 PAH SERIES PARTS LIST Repair Rotating Assembly ITEM PART PART NAME NUMBER SOCKET HEAD CAP SCREW DM1006 15991 WASHER NORD-LOCK 5/8" 21177-221 IMPELLER WASHER 31177-007 17000 ROLL PIN S2197 IMPELLER 38623-532 11010 ADJ SHIM SET 8499 17000 MECH SEAL 2-1/2"...
- Page 34 OM-06469 PAH SERIES ILLUSTRATION Figure 5. Priming Chamber Kit PARTS LIST ITEM PART PART NAME NUMBER PRIMING CHAMBER ASSY 46112-709 PIPE BUSHING AP1608 15070 STREET ELBOW RS08 11999 BALL VALVE 26631-052 STUD C0809 15991 HEX NUT D08 15991 LOCK WASHER...
- Page 35 OM-06469 PAH SERIES ILLUSTRATION Figure 6. Priming Chamber Assembly PARTS LIST ITEM PART PART NAME NUMBER PRIMING VALVE 26664-007 -ORIFICE BUTTON 26688-021 HEX HD CAPSCREW B0806 15991 LOCKWASHER J08 15991 PRIMING VALVE GASKET 38683-657 19060 PRIMING CHAMBER 38343-020 10000 STRAINER ASSY...
- Page 36 OM-06469 PAH SERIES ILLUSTRATION Figure 7. Drive Assembly PARTS LIST ITEM PART PART NAME NUMBER COUPLING KIT 48112-009 -BUSHING 24131-375 -COUPLING ASSEMBLY 24391-107 LOCKWASHER 21171-536 SOCKET HEAD CAPSCREW B0612 15991 SOCKET HEAD CAPSCREW 22645-174 HEX HEAD CAPSCREW B0606 15991 HEX HEAD CAPSCREW...
- Page 37 OM-06469 PAH SERIES PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Review all SAFETY information in Section A. Before attempting to open or service the pump: Follow the instructions on all tags, label and de 1. Familiarize yourself with this man cals attached to the pump.
- Page 38 OM-06469 PAH SERIES Discharge Check Valve Removal and ing when working on the pump or pip Disassembly ing. (Figure 3) Remove the hardware (not shown) securing the discharge check valve bracket to the base. Use only replacement parts provided or approved by Gorman‐Rupp.
- Page 39 OM-06469 PAH SERIES Pump Casing Removal Remove the impeller adjusting shims (6); tie and tag the shims, or measure and record their thick (Figure 3) ness for ease of reassembly. Remove the uppermost pipe plug (5) from the Inspect the impeller and replace if cracked or badly pump casing and install a lifting eye in the hole.
- Page 40 OM-06469 PAH SERIES It is not necessary to remove the outer ring of the the shaft, it is recommended that bearings coupling from the engine flywheel unless the cou be cleaned and inspected in place. It is pling must be replaced. To remove the ring, disen...
- Page 41 OM-06469 PAH SERIES Shaft and Bearing Reassembly and Installation during cooling. If movement has occurred, use a suitably sized sleeve and a press to reposition the (Figure 4) bearings against the shaft shoulders. Inspect the shaft (25) for distortion, nicks or If heating the bearings is not practical, use a suit...
- Page 42 OM-06469 PAH SERIES With the oil seal sleeve in place, lubricate the oil Align the keyway in the bushing (2) with the shaft key, and slide it onto the shaft until the face of the seal area of the shaft and slide the shaft and as...
- Page 43 OM-06469 PAH SERIES Secure the drive flange (31, Figure 4) to the engine seat bore in the seal plate for dirt, nicks and burrs, bellhousing with the previously removed hardware and remove any that exist. The stationary seat bore (6, 7 and 9).
- Page 44 OM-06469 PAH SERIES and secure it to the pedestal with the hardware (15 (1). Install the roll pin (4) in the hole in the impeller. and 16). If a new seal plate is being installed, posi Position the impeller washers over the end of the...
- Page 45 OM-06469 PAH SERIES tion it against the pump casing flange. Support the LUBRICATION discharge check valve assembly using a sling and a suitable lifting device. Using the previously re Seal Assembly moved hardware, secure the discharge check valve assembly and flange gasket to the pump as...
- Page 46 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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