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111-G00     Page 10/16 

MAINTENANCE:  

PUMP ASSEMBLY 

Before reassembling the pump, inspect all component 
parts for wear or damage, and replace as required. Wash 
out the bearing/seal recess of the head and remove any 
burrs or nicks from the rotor and shaft. 

 

Reassemble the BEARING Components first: 

To aid in the installation of the sleeve bearing (24) the 
creation and use of a tool similar to the one shown in Figure 8 
may be useful. 

 

Figure 8 – Sleeve Bearing Installation 

Pump Model 

Bearing Bore 

Dia. “C” 

Tool  

Dim “A” 

Tool  

Dim “B” 

PVS10, 15 

1.89 IN. 

(48.2 mm) 

2.76 IN. 

(70 mm) 

1.76 IN. 

(44.75 mm)

PVS20, 30, 

40, 50 

2.68 IN. 

(68 mm) 

3.35 IN. 

(85 mm) 

2.55 IN. 

(64.75 mm)

 

 

1. 

Inspect the sleeve bearing (24) for wear or damage and 
replace as required.  To replace sleeve bearing:

 

PVS10,15

 

a.  Using an appropriately sized arbor press, remove 

the old bearing (24) from the bearing housing (57). 

 b.  To aid installation and prevent bearing damage.   

Coat the bearing (24) with grease and place it on the 
face of the bearing housing (57). 

c. 

Using an arbor press, press the bearing (24) into the 
housing (57) until it is 

flush

 with the face of the 

bearing housing. 

PVS20-50 

a.  To remove old bearing, pry bearing away from 

housing at seam using appropriate small chisel or 
similar prying tool.  Use mallet and chisel to separate 
seam inward and apart until bearing separates and 
becomes loose.  Although some damage may occur 
to bearing housing ID, take care to minimize 
damage.  If damage does occur, lightly sand 
damaged surface until all raised edges of damage 
are removed. 

b.  To aid installation and prevent bearing damage, coat 

the bearing (24) with grease and place it on the face 
of the bearing housing (57). 

c. 

Using an arbor press, press the bearing (24) into the 
housing (57) until it is 

flush

 with the face of the 

bearing housing 

NOTE: Ensure the bearing does not become misaligned 
during the pressing motion. 

2.  Inspect the ball bearing (24C) for wear or damage and 

replace as required.  To replace ball bearing: 
a.  Using an appropriately sized arbor press, remove   

the old bearing (24C) from the bearing adjuster 
(188).  Discard the old bearing after removal. 

b.  To aid installation and prevent bearing damage, coat 

the bearing with grease and place it on the face of 
the bearing adjuster (188)  

c. 

Using an arbor press, press outer race of the 
bearing into the bearing adjuster until it is seated in 
the bearing adjuster. 

3.  Screw the bearing adjuster (188) to the bearing housing 

(57) until they are flush.  Be sure that the setscrew (189) 
is not interfering with the flush fit of the bearing adjuster 
to the bearing housing. 

4.  Seal stationary assembly 

Refer to the seal manufacturer’s instructions for detailed 
removal and replacement instructions. 

Mechanical seal type 51, 9 

Installing the Stationary Seat  
a.  Apply a small amount of lubricant in the seal access of 

the seal cover (126).   

b.  Install a new stationary seal-ring and stationary seat.  

Clean the polished face with a clean tissue and 
alcohol. 

Cartridge seal

:  Follow manufacturer’s instructions 

5.  Install a new O-ring (51) into the seal cover (126A).   

6.  Lubricate the O-ring seal area on the bearing housing 

(57) with a light coating of oil.  Insert the seal cover (126) 
into the bearing housing.   

7.  Secure the seal cover to the inboard head (20) by 

installing the cap-screws (21A) Torque per table 1. 

 

Содержание 111-G01

Страница 1: ...ckmer s website www blackmer com or by contacting Blackmer Customer Service Numbers in parentheses following individual parts indicate reference numbers on Blackmer Part Lists SAFETY DATA This is a SA...

Страница 2: ...ervice or maintenance can cause personal injury or property damage PUMP DATA PUMP IDENTIFICATION A pump Identification tag containing the pump serial number I D number and model designation is attache...

Страница 3: ...nd installation of the piping system review the following suggestions 1 Locate the pump as near as possible to the source of supply to avoid excessive inlet pipe friction 2 The inlet line should be at...

Страница 4: ...and checking the reading through one complete revolution Maximum offset should be less than 005 127 mm 2 Angular alignment Insert a feeler gauge between the coupling halves Check the spacing at 90 inc...

Страница 5: ...valves are fully open and that the drain valves and other auxiliary valves are closed 4 Install inlet and discharge pressure gauges on the pump in the threaded connections provided These can be used...

Страница 6: ...ations OPTIONAL PUMP RELIEF VALVE Hazardous pressure can cause personal injury or property damage An external bypass valve and or an internal relief valve MUST be installed in the system to protect th...

Страница 7: ...place as required Reattach R V cap O ring and RV cap Refer to the individual Blackmer pump parts lists for various spring pressure ranges Unless specified otherwise pumps are supplied from the factory...

Страница 8: ...ns following the appropriate procedures and warnings as presented in this manual See the table on page 1 of this manual to determine your pump model Figure 6 Vane Replacement 1 Flush the pump per inst...

Страница 9: ...casing 7 The mechanical seal spring assembly should come out with the shaft The stationary seat and stationary seal ring need to be removed from the seal cover 126 a To remove the seal cover remove th...

Страница 10: ...n and prevent bearing damage coat the bearing 24 with grease and place it on the face of the bearing housing 57 c Using an arbor press press the bearing 24 into the housing 57 until it is flush with t...

Страница 11: ...oosely assembled rotor and shaft on to the piece of steel in one of the vane slots completely filling the entire vane slot c Hold the assembly securely without damaging the OD of the rotor or shaft d...

Страница 12: ...3 Secure the ball bearing 24C to the shaft by uniformly tightening the setscrews on the ball bearing Bearing MUST be tightened with allen wrench per Torque Table 1 or by using the special self indicat...

Страница 13: ...ating properly causing the rotor and shaft to bind or turn hard Use a tissue paper alcohol to clean the seal faces NOTE Apply a light oil or suitable lubricant to bronze seal faces only OTHER POSSIBLE...

Страница 14: ...e Air leaks in the suction line Restriction in the suction line Damaged or worn pump parts Too much lift for the vapor pressure of the fluid A dirty or clogged strainer Worn vanes Suction Valve Closed...

Страница 15: ...111 G00 Page 15 16 NOTES...

Страница 16: ...rine Magnetic Drive Pumps Stainless Steel 14 to 215 GPM Abaque Peristaltic Hose Pumps 0 1 to 210 GPM High Lift Solids Abrasives Reciprocating Gas Compressors Liquefied Gas Transfer Boosting Vapor Reco...

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