GORMAN-RUPP PUMPS PA6C Maintenance And Repair Manual Download Page 12

MR−05740

PA SERIES PUMPS

MAINTENANCE & REPAIR

PAGE C − 1

PUMP MAINTENANCE AND REPAIR − SECTION C

Review all SAFETY information in Section A.

Follow the instructions on all tags, label and de-
cals attached to the pump.

Before attempting to install, operate, or
service this pump, familiarize yourself
with this manual, and with all other liter-
ature shipped with the pump. Unfamil-
iarity with all aspects of operation or
maintenance could lead to destruction
of equipment, injury or death to person-
nel.

Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam-
age to equipment. If slings or chains are
used to move the pump or components,
make sure that the load is balanced;
otherwise serious personal injury or
death could result. The bail is intended
for use in lifting the pump assembly
only. Suction and discharge hoses and
piping must be removed from the pump
before lifting.

The maintenance and repair instructions in this
manual are keyed to the sectional views and the
corresponding parts identification lists on the fol-
lowing pages. Refer to the separate Parts List Man-
ual for replacement parts.

This Maintenance and Repair Manual provides
troubleshooting instructions required to properly
diagnose operational problems. Maintenance in-
structions within this manual are limited to the
pump hydraulic, priming and drive components
only. The pump assembly may be close-coupled to

either a factory-supplied or customer-supplied en-
gine. Maintenance of engines and factory-supplied
air compressors are detailed in separate literature

provided

 

by the manufacturer(s).

Check 

TROUBLESHOOTING

, Section B to deter-

mine causes and remedies of pump problems.
Disassemble the pump only as far as required.

As described in the 

SAFETY

 Section, this manual

will alert personnel to known procedures which re-
quire special attention, to those which could dam-
age equipment, and to those which could be dan-
gerous to personnel. However, this manual cannot
possibly anticipate and provide detailed precau-
tions for every situation that might occur during
maintenance of the unit. Therefore, it is the respon-
sibility of the owner/maintenance personnel to en-
sure that 

only

 safe, established shop procedures

are used, and that any procedures not addressed
in this manual are performed 

only

 after establish-

ing that neither personal safety nor pump integrity
are compromised by such practices.

Select a suitable location, preferably indoors, to
perform required maintenance. All work must be
performed by qualified personnel.

Lifting

Pump unit weights will vary depending on the
mounting and drive provided. Check the shipping
tag on the unit packaging for the actual weight, and
use lifting equipment with appropriate capacity.
Drain the pump and remove all customer-installed
equipment such as suction and discharge hoses
or piping before attempting to lift existing, installed
units.

The pump assembly can be seriously
damaged if the chains or cables used to lift
and move the unit are improperly wrapped
around the pump.

Summary of Contents for PA6C

Page 1: ...mber 8 2004 Use With OM 04402 THE GORMAN RUPP COMPANY D MANSFIELD OHIO www gormanrupp com GORMAN RUPP OF CANADA LIMITED D ST THOMAS ONTARIO CANADA Printed in U S A ECopyright by the Gorman Rupp Compan...

Page 2: ...The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm...

Page 3: ...ment and to those which could be dan gerous to personnel However this manual cannot possibly anticipate and provide detailed precau tions for every situation that might occur during maintenance of the...

Page 4: ...as de scribed in this and the other accompanying litera ture Please note that should the equipment be abused or modified to change its performance be yond the original factory specifications the war...

Page 5: ...t injury or death to personnel Before attempting to open or service the pump 1 Familiarize yourself with this man ual 2 Shut down the engine and discon nect the positive battery cable en gine driven u...

Page 6: ...rate the pump without the guards in place over the rotating parts Exposed rotating parts can catch cloth ing fingers or tools causing severe in jury to personnel Use only replacement parts provided or...

Page 7: ...E A 3 Never tamper with the governor on en gine driven units to gain more power The governor establishes safe operat ing limits that should not be exceeded Refer to the pump Performance Curve for the...

Page 8: ...y valve Pump speed too slow engine driven units Check driver output consult driver operation manual Eductor clogged Check and clean eductor PA SERIES PUMPS MR 05740 TROUBLESHOOTING PAGE B 1 TROUBLESHO...

Page 9: ...flow rate for engine driven units run engine at maximum gov erned speed Discharge flow too slow Dilute if possible Suction check valve or foot valve clogged or binding Clean valve Suction intake not...

Page 10: ...ed this section is intended only to provide general recommendations and practices for preventive maintenance Regardless of the application however following a routine pre ventive maintenance schedule...

Page 11: ...r Impeller Clearance Seal Plate I Check Valve I Pressure Relief Valve If So Equipped C Pump and Driver Alignment I Shaft Deflection I Bearings I Bearing Housing I Piping I Driver Lubrication See Mfgr...

Page 12: ...coupled to either a factory supplied or customer supplied en gine Maintenance of engines and factory supplied air compressors are detailed in separate literature provided by the manufacturer s Check T...

Page 13: ...l for serviceable parts part numbers and quantities ITEM NO PART NAME 1 PUMP END ASSEMBLY 2 CHECK VALVE KIT 3 PRIMING CHAMBER KIT NOTE Maintenance instructions in this manual are limited to the pump h...

Page 14: ...C 2 Priming Chamber Kit Part Identification List Refer to the separate Parts List Manual for serviceable parts part numbers and quantities ITEM NO PART NAME 1 PRIMING CHAMBER ASSEMBLY 2 PIPE BUSHING 3...

Page 15: ...PA SERIES PUMPS MR 05740 MAINTENANCE REPAIR PAGE C 4 SECTION DRAWING Figure C 3 Priming Chamber...

Page 16: ...Assembly Part Identification List Refer to the separate Parts List Manual for serviceable parts part numbers and quantities ITEM NO PART NAME 1 PRIMING VALVE 2 ORIFICE BUTTON 3 HEX HD CAPSCREW 4 LOCK...

Page 17: ...PA SERIES PUMPS MR 05740 MAINTENANCE REPAIR PAGE C 6 SECTION DRAWING Figure C 4 66F60 Pump End Assembly...

Page 18: ...PIPE PLUG 8 VENTED PLUG 9 HEX HEAD CAPSCREW 10 LOCKWASHER 11 ADJUSTING SHIM SET 12 PIPE PLUG 13 CASING DRAIN PLUG 14 BACK COVER PLATE O RING 15 BACK COVER PLATE 16 LOCKING COLLAR 17 ADJUSTING SCREW 18...

Page 19: ...PA SERIES PUMPS MR 05740 MAINTENANCE REPAIR PAGE C 8 SECTION DRAWING DRIVE END VIEW Figure C 5 Repair Rotating Assembly...

Page 20: ...SHING 8 OUTBOARD BALL BEARING 9 DRIVE FLANGE 10 IMPELLER SHAFT KEY 11 IMPELLER SHAFT 12 OIL SEAL 13 SNAP RING 14 HEX HEAD CAPSCREW 15 LOCKWASHER 16 BEARING HOUSING GASKET 17 OIL SEAL 18 HEX HEAD CAPSC...

Page 21: ...ly Engine Driven Units Part Identification List Refer to the separate Parts List Manual for serviceable parts part numbers and quantities ITEM NO PART NAME 1 COUPLING ASSEMBLY 2 BUSHING 3 KEY 4 DRIVE...

Page 22: ...ely cool and drain the pump casing This manual will alert personnel to known procedures which require spe cial attention to those which could damage equipment and to those which could be dangerous to...

Page 23: ...acement To replace the orifice button remove one of the e clips from the pivot pin clos est to the orifice button and remove the pivot pin This will allow the linkage to be raised high enough to acces...

Page 24: ...ner under the seal cavity drain plug 12 Remove the drain plug and drain the oil from the seal cavity into the container Clean and rein stall the drain plug Inspect the oil for water dirt or a cloudy c...

Page 25: ...ing 35 If no further disassembly is required refer to Seal Installation Shaft and Bearing Removal and Disassembly Figure C 5 When the pump is properly operated and main tained the bearing housing shou...

Page 26: ...aring 3 comes from the manufac turer with a retaining ring installed on the bearing O D This retaining ring must be removed prior to installation The bearings may be heated to ease installation An ind...

Page 27: ...ven tilated area free from excessive heat sparks and flame Read and follow all precautions printed on solvent contain ers The seal is not normally reused because wear pat terns on the finished faces...

Page 28: ...l plate Lubricate the shaft sleeve O ring 28 and position it over the last thread on the impeller shaft Use caution not to cut the O ring on the threads Slide the shaft sleeve 30 onto the shaft until...

Page 29: ...and slide it onto the shaft to the dimension shown in Figure C 6 Rotate the flexible portion of the coupling until the tapped holes for the two set screws align with those in the bushing and install t...

Page 30: ...impeller is 010 to 020 inch 0 25 to 0 50 mm USE TWO OPPOSING HAND NUTS TO PRESS BACK COVER INTO PUMP CASING USE TWO REMAINING ADJUSTING SCREWS AND LOCKING COL LARS TO SET FACE CLEARANCE INDEX COLLARS...

Page 31: ...the bracket and reinstall the pivot pin Secure the pivot pin with the previously removed e clip Adjust the orifice button seating as necessary by screwing the orifice button into or out of the linkage...

Page 32: ...nd maintain it at the midpoint of the gauge When lubrication is re quired remove the air vent 6 and add SAE No 30 non detergent oil through the opening When lubri cating a dry overhauled bearing housi...

Page 33: ...rpumps com warranty or call U S 419 755 1280 International 1 419 755 1352 For Canadian Warranty Information Please Visit www grcanada com warranty or call 519 631 2870 THE GORMAN RUPP COMPANY D MANSFI...

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