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BLACKMER LLIQUEFIED G

GAS P

PUMPS

FFO

OR

R LLP

P-G

GA

AS

S A

AN

ND

D N

NH

H33 S

SE

ER

RV

VIIC

CE

E

INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS

MODELS: LGRL1

.25, 

LGRLF1

.25

A, LGL1

.25

LGLF1

.25

A, LGL1

.5

960409

INSTRUCTIONS NO. 501-B00

Page 1 of 8
Section

500

Effective

June 2001

Replaces

585/C Nov 1988

TABLE OF CONTENTS

Page

SAFETY DATA

..................................................................

1- 2

PUMP DATA

..........................................................................

2

Technical Data.......................................................2
Initial Start Up Information .....................................2

INSTALLATION

.................................................................

2- 3

Pre-Installation Cleaning .......................................3
Location and Piping...............................................3
Pump Mounting .....................................................3
Coupling Alignment ...............................................3
Internal Pump Relief Valve and Bypass Valve ......3

OPERATION

..........................................................................

4

Pump Rotation.......................................................4
To Change Pump Rotation ....................................4
Pre-Start Up Check List.........................................4
Start Up Procedures ..............................................4
Relief Valve Setting and Adjustment .....................4

MAINTENANCE

.................................................................

4- 7

Lubrication.............................................................5
Vane Replacement ................................................5
Pump Disassembly................................................5
Pump Assembly ....................................................6

GENERAL PUMP TROUBLESHOOTING

.......................

8

NOTICE:

Blackmer liquefied gas 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 liquefied gas pumps,
and MUST be kept with the pump.

Blackmer liquefied gas 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 Blackmer liquefied gas pumps.

Maintain ALL system and Blackmer liquefied gas
pump operation and hazard warning decals.

SAFETY DATA

NOTE: Numbers in parentheses following individual
parts indicate reference numbers on the
corresponding Blackmer Parts List.

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.

Summary of Contents for LGL1.25

Page 1: ...safety standards This manual is intended to assist in the installation and operation of the Blackmer liquefied gas pumps and MUST be kept with the pump Blackmer liquefied gas pump service shall be per...

Page 2: ...and lockout electrical power before installation or service Electrical supply MUST match motor nameplate specifications Motors equipped with thermal protection automatically disconnect motor electric...

Page 3: ...ndards See Figure 1 A solid foundation will reduce system noise and vibration and will improve pump performance Refer to ANSI HI standards or a suitable pump handbook for information on typical pump m...

Page 4: ...charge valve still closed momentarily close the manual shut off valve in the bypass return line to check the pump relief valve The pressure should be at least 25 psi 1 7 bar higher than the maximum sy...

Page 5: ...G THE APPROPRIATE PROCEDURES AND WARNINGS AS PRESENTED IN THIS MANUAL 1 Drain and relieve pressure from the pump and system as required 2 Remove the head assembly from the outboard non driven side of...

Page 6: ...from the liner Reassemble the OUTBOARD side of the pump first 1 Align the liner keyway with the setscrew 74 that extends down into the pump casing 12 and start the liner 41 into the casing The word I...

Page 7: ...a broken lockwasher tang Loose locknuts will allow the rotor to shift against the discs 71 causing wear See Figure 6 a On both ends of the pump shaft install a lockwasher 24B with the tangs facing ou...

Page 8: ...gnment of pump reducer or motor 5 Bearings worn or damaged 6 Vibration from improperly anchored piping 7 Bent shaft or drive coupling misaligned 8 Excessively worn rotor 9 Malfunctioning valve in the...

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