BLACKMER SNP1.25, Installation, Operation And Maintenance Instructions

BLACKMER POWER PUMPS 

960255

INSTRUCTIONS NO. 104-A00 

INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS

Section 

Effective 

Replaces 

104 
May 2010 
Oct 2007 

MODELS: SNP1.25, SNP1.5, SNP2, SNP2.5, SNP3A 

SNPJ1.25 *, SNPJ1.5 *, SNPJ2 *, SNPJ2.5 * 

TABLE OF CONTENTS 

Page

PUMP DATA

 Technical Data ...................................................... 2 
 

Initial Pump Start Up Information........................... 2 

INSTALLATION

 Pre-Installation Cleaning ....................................... 3 
 Location 

and 

Piping............................................... 3 

 Pump 

Mounting ..................................................... 4 

 Coupling 

Alignment ............................................... 4 

 Pump 

Rotation....................................................... 4 

To Change Pump Rotation .................................... 4 

 Check 

Valves ........................................................ 4 

 Jacketed 

Heads..................................................... 4 

OPERATION

 Pre-Start 

Up 

Check List......................................... 5 

 Start 

Up 

Procedures.............................................. 5 

Running the Pump in Reverse Rotation ................ 6 

 Flushing 

the Pump ................................................ 6 

 Pump 

Relief Valve................................................. 7 

Relief Valve Setting and Adjustment ..................... 7 

MAINTENANCE 

Strainers................................................................... 8 
Lubrication................................................................ 8 
Vane Replacement................................................... 8 
Pump Disassembly .................................................. 9 
Parts Replacement................................................... 9 
Pump Assembly ..................................................... 11 

TROUBLE SHOOTING

................................................. 13 

* 

Effective Jan 2006, jackets are considered an option and 

no longer change the model number.

NOTE

: Numbers in parentheses following individual parts 

indicate reference numbers on Blackmer Parts List No.  
104-A01, 104-A02, 104-A03 and 104-A04. 

Blackmer pump manuals and parts lists may be obtained 
from Blackmer's website (www.blackmer.com) or by 
contacting Blackmer Customer Service. 

SAFETY DATA 

This is a SAFETY ALERT SYMBOL. 

When you see this symbol on the product, or in the manual, 
look for one of the following signal words and be alert to the 

potential for personal injury, death or major property damage 

Warns of hazards that WILL cause serious personal injury, 

death or major property damage. 

Warns of hazards that CAN cause serious personal injury, 

death or major property damage. 

Warns of hazards that CAN cause personal injury 

or property damage. 

NOTICE: 

Indicates special instructions which are very 

important and must be followed. 

NOTICE: 

Blackmer Pumps

 MUST

 only be installed in systems, which 

have been designed by qualified engineering personnel.  
The system 

MUST

 conform to all applicable local and 

national regulations and safety standards. 
 
This manual is intended to assist in the installation and 
operation of the Blackmer SNP / SNPJ Series pumps, and 

MUST

 be kept with the pump. 

 
Pump service shall be performed by qualified technicians 

ONLY

.  Service shall conform to all applicable local and 

national regulations and safety standards. 
 
Thoroughly review this manual, all instructions and hazard 
warnings, 

BEFORE

 performing any work on the pump. 

 
Maintain 

ALL

 system and pump operation and hazard 

warning decals.