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104-A00    Page 5/16 

OPERATION 

 

 

 

Do not operate 

without guard 

in place 

Operation without guards in place can 
cause serious personal injury, major 
property damage, or death. 

 

 

 

 

Hazardous pressure 

can cause personal 

injury or property 

damage

 

Disconnecting fluid or pressure 
containment components during pump 
operation can cause serious personal 
injury, death or major property damage 

 

 

 

 

Hazardous pressure 

can cause personal 

injury or property 

damage 

Failure to relieve system pressure prior 
to performing pump service or 
maintenance can cause personal injury 
or property damage. 

 

 

 

 

Hazardous pressure 

can cause personal 

injury or property 

damage 

Pumps operating against a closed valve 
can cause system failure, personal 
injury and property damage  

 
 

PRE-START UP CHECK LIST 

1.  Check the alignment of the pipes to the pump.  Support 

pipes so that they do not spring away or drop down when 
pump flanges or union joints are disconnected. 

2.  Verify proper coupling alignment. 

3.  Blackmer helical gear reducers (if supplied) are shipped 

from the factory without oil in the gearcase. Fill with the 
grade of oil indicated on the reducer tag. For more 
specific instructions on Blackmer gear reducers, refer to 
the appropriate Gear reducer Installation, Operation and 
Instruction Manual. 

4.  Check the entire pumping system to verify that the 

proper inlet and discharge valves are fully open, and that 
the drain valves and other auxiliary valves are closed. 

5.  Install vacuum and pressure gauges on the pump in the 

1/4” NPT connections provided. These can be used to 
check actual suction and discharge conditions after 
pump start-up. 

6.  Check the wiring of the motor, and briefly turn on the 

power to make sure that the pump rotates in the 
direction of the rotation arrow. 

 
 

START UP PROCEDURES 

NOTICE: 

Consult the "general pump troubleshooting" section of 
this manual if difficulties during start up are 
experienced. 

1.  Start the motor. Priming should occur within one minute. 

2.  Check the vacuum and pressure gauges to see if the 

pump is operating within the expected conditions. 

3.  Check for leakage from the piping and equipment. 

4. 

Check for overheating, excessive noise or vibration 
of the pump, reducer, and motor.

 

5. 

Check the flow rate to ensure the pump is 
operating within the expected parameters.  Record 
flow rate in the "initial Start Up Information" 
section.

 

6.  Check the pressure setting of the relief valve by briefly 

closing a valve in the discharge line and reading the 
pressure gauge. This pressure should be 20 psi (1.4 bar) 
higher than the maximum operating pressure.  

CAUTION: Do not run the pump for more than 15 
seconds with the discharge valve completely closed.

  

If adjustments need to be made, refer to "Relief Valve 
Setting & Adjustment." 

 

 

 

Hazardous pressure 

can cause personal 

injury or property 

damage 

Incorrect settings of the pressure relief 
valve can cause pump component 
failure, personal injury, and property 
damage. 

 
 

Содержание SNP1.25

Страница 1: ...r 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...

Страница 2: ...ion without guards in place can cause serious personal injury major property damage or death PUMP DATA PUMP IDENTIFICATION A pump Identification tag containing the pump serial number I D number and mo...

Страница 3: ...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 must be at least as large as the i...

Страница 4: ...ermine direction of flow where the pump will be installed 2 Confirm pump is installed in piping so that the flow will pass through the pump from inlet to outlet The inlet of the pump has INLET cast in...

Страница 5: ...es are fully open and that the drain valves and other auxiliary valves are closed 5 Install vacuum and pressure gauges on the pump in the 1 4 NPT connections provided These can be used to check actual...

Страница 6: ...lve closed Bleed air into the pump through the intake gauge plug hole or through a larger auxiliary fitting in the intake piping Pump air for 30 second intervals to clean out most of the pumpage A dra...

Страница 7: ...r a high suction lift and cavitation or starving of the pump exists partial closing of the discharge valve will result in excessive noise in the relief valve Plumbing the relief valve so flow is direc...

Страница 8: ...rocedures and warnings as presented in this manual SCHEDULED MAINTENANCE STRAINERS Strainers must be cleaned regularly to avoid pump starvation Schedule will depend upon the application and conditions...

Страница 9: ...SEAL OR A COMMERCIAL MECHANICAL SEAL a Loosen all setscrews before removing the head assembly For further instructions on the disassembly and assembly of commercial mechanical seals refer to the sepa...

Страница 10: ...he notched end UP Align the notch in the bearing with the groove in the head See figure 7a c Using an arbor press press the bearing into the head in one continuous motion until it is flush with or sli...

Страница 11: ...disc or shaft c Turn the shaft by hand until an empty slot comes to the 12 o clock position insert a vane and move on to the next slot 6 Place the inboard disc 71 and seal ring 72 on the cylinder 12 s...

Страница 12: ...ighten the locknuts 106A c Slide the bearing and lock collar 106B on the shaft until it is firmly seated in the bearing flange 106A d Push inward on the bearing and lock collar 106B while turning the...

Страница 13: ...om 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 lubricant to bronze seal faces only Other poss...

Страница 14: ...he 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 Incorrect pump rotation Relief Valve partially...

Страница 15: ...104 A00 Page 15 16 NOTES...

Страница 16: ...ess Marine 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 Vapo...

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