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111-B00     Page 8/16 

MAINTENANCE:  

 

 

Torque Table 1 

 

 

Pump Size 

 

PV6B, 8B 

Head / Casing Cap Screws 

in-lbs 42 

N-m 4.75 

Rotor Capscrews 

in-lbs 34 

N/m 3.84 

Relief Valve Capscrews 

in-lbs 15 

N-m 20.3 

Bearing Adjuster Set Screw 
(189) 

in-lbs 9.5 

N-m 1.07 

 

Suggested Tool List

 

Allen Wrenches: 7/64”, 2mm - 5mm 
Combination Wrenches: 10mm - 12mm, 23mm 
Pliers: Standard & Long Nose 
Spanner Wrench 
Strap Wrench 
Ball Peen Hammer: 8oz. 
Ratchet & Socket Set: 10mm - 12mm, 23mm 
Mallet: shot loaded rubber 
Screwdrivers: (2), slot type

 

 
 

SCHEDULED MAINTENANCE 

 

LUBRICATION 

The Blackmer ProVane pumps are equipped with  
ball bearings that require no additional lubrication. 

 
 

STRAINERS 

Strainers must be cleaned regularly to avoid pump starvation.  
Schedule will depend upon the application and conditions.

  

 

VANE REPLACEMENT 

 

NOTICE: 

Maintenance shall be performed by qualified technicians 
following the appropriate procedures and warnings as 
presented in this manual. 

 
See the table on page 1 of this manual to determine what 
model you have. 

 

Figure 6 – Vane Replacement 

 

1.  Flush the pump per instructions in this manual. Drain and 

relieve pressure from the pump and system as required.  

2.  Remove the head cap screws (21). Gently pry the head 

away from the casing using two screwdrivers.  The head 
O-ring should come off with the head assembly. 

3.  Turn the shaft by hand until a worn vane comes to the top 

(12 o'clock) position of the rotor. Remove the vane. 

4.  Install a new vane, ensuring that the rounded edge is UP, 

and the relief grooves are facing towards the direction of 
rotation. See Figure 6. 

5.  Repeat steps 3 and 4 until all vanes have been replaced. 

This method of vane installation ensures the push rods do 
not fall out of their rotor slots. 

6.  Carefully install the head (23) into the casing or cylinder.  

Install and tighten four head cap screws (21).  If equipped 
with optional relief valve, to insure proper orientation see 
Figures 4 and 5 in 

Optional Pump Relief Valve 

section  

Torque per Table 1 shown at the beginning of the 
maintenance section. 

 
 
 

Summary of Contents for ProVane PV6B

Page 1: ...vice Numbers in parentheses following individual parts indicate reference numbers on Blackmer Part Lists SAFETY DATA This is a SAFETY ALERT SYMBOL When you see this symbol on the product or in the man...

Page 2: ...in place Hazardous pressure 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...

Page 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...

Page 4: ...ot available use a straight edge Turn both shafts by hand checking the reading through one complete revolution Maximum offset should be less than 005 127 mm 2 Angular alignment Insert a feeler gauge b...

Page 5: ...alves 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 to...

Page 6: ...tions OPTIONAL PUMP RELIEF VALVE An external bypass valve and or an internal relief valve MUST be installed in the system to protect the pump from excessive pressure Hazardous pressure can cause perso...

Page 7: ...ce 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 wi...

Page 8: ...ed in this manual See the table on page 1 of this manual to determine what model you have Figure 6 Vane Replacement 1 Flush the pump per instructions in this manual Drain and relieve pressure from the...

Page 9: ...pward and remove the 4 cap screws 21 Lift off the bearing housing and remove the cylinder O ring 71 7 The mechanical seal rotating assembly will come out with the shaft The stationary seat and station...

Page 10: ...ace of bearing press the OD of the bearing into the bearing adjuster until fully seated 3 Cylinder O ring installation a Install a new O ring 71 over the dowel of the Bearing housing 57 4 Reassemble t...

Page 11: ...are installed carefully insert the driven end of rotor and shaft into the cylinder b Apply a small amount of Flowserve Pac Ease or equivalent water based lubricant on the shaft between the shaft end a...

Page 12: ...housing Table 2 Pump size Distance on OD of Drive Housing PV 6 8 3 4 19 05 mm 17 Tighten the bearing adjuster lock setscrews and torque per table 1 18 Install a new head O ring 72 on the dowel of the...

Page 13: ...the seal faces will prevent the faces from mating 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 lubric...

Page 14: ...use 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 Clos...

Page 15: ...111 B00 Page 15 16 NOTES...

Page 16: ...215 GPM HXL 6 8 10 Sliding Vane Pumps 130 to 2 220 GPM Refineries Terminals Barges Ships Reciprocating Gas Compressors Liquefied Gas Transfer Boosting Vapor Recovery Hand Operated Pumps Dispensing Tra...

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