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BLACKMER L L IQUEFIED G G AS P P UMPS
F F O O R R L L P P -G G A A S S A A N N D D N N H H 3 3 S S E E R R V V I I C C E E
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS
MODELS: LGRL1.25, LGRLF1.25A, LGL1.25,
TABLE OF CONTENTS
..................................................................
..........................................................................
Technical Data.......................................................2
Initial Start Up Information .....................................2
.................................................................
Pre-Installation Cleaning .......................................3
Location and Piping...............................................3
Pump Mounting .....................................................3
Coupling Alignment ...............................................3
..........................................................................
Pump Rotation.......................................................4
To Change Pump Rotation ....................................4
Pre-Start Up Check List.........................................4
Start Up Procedures ..............................................4
Relief Valve Setting and Adjustment .....................4
.................................................................
Lubrication.............................................................5
Vane Replacement ................................................5
Pump Disassembly................................................5
Pump Assembly ....................................................6
NOTE: Numbers in parentheses following individual
parts indicate reference numbers on the
corresponding Blackmer Parts List.
LGLF1.25A, LGL1.5
Page
1- 2
2
2- 3
4
4- 7
8
.......................
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 proper ty damage.
Warns of hazards that WILL cause serious personal injury,
death or major proper ty damage.
Warns of hazards that CAN cause serious personal injury,
death or major proper ty damage.
Warns of hazards that CAN cause personal injury
or proper ty damage.
NOTICE:
Indicates special instructions which are very
impor tant and must be followed.
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.
960409
INSTRUCTIONS NO. 501-B00
Page 1 of 8
Section
500
Effective
June 2001
Replaces
585/C Nov 1988
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Summary of Contents for BLACKMER LGRL1.25
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Page 1: Table Of Contents
BLACKMER L L IQUEFIED G G AS P P UMPS 960409 INSTRUCTIONS NO. 501-B00 F F O O R R L L P P -G G A A S S A A N N D D N N H H 3 3 S S E E R R V V I I C C E E... -
Page 2: Safety Data
Laboratories for liquefied petroleum gas and NH3 service. INSTALLATION NOTICE: Install, ground and wire to local and National Electrical Code requirements. BLACKMER LP-GAS PUMPS MUST ONLY BE INSTALLED IN SYSTEMS DESIGNED BY QUALIFIED Install an all-leg disconnect switch near ENGINEERING PERSONNEL. SYSTEM DESIGN MUST the unit motor. -
Page 3: Pre-Installation Cleaning
A Blackmer Model BV bypass valve can be mounted as shown PUMP MOUNTING in Figure 3 for bulk plant installation. Refer to Blackmer... -
Page 4: Operation
(1), loosen the locknut (3), and turn the adjusting Hazardous screw (2) outward, or COUNTERCLOCKWISE. machinery can cause serious Refer to corresponding Blackmer Pump Parts List for personal injury. relief valve spring pressure ranges. MAINTENANCE FAILURE TO DISCONNECT AND... -
Page 5: Lubrication
MAINTENANCE VANE REPLACEMENT DO NOT ATTEMPT TO OPEN THE PUMP NOTICE: UNTIL YOU HAVE BLED OFF THE MAINTENANCE SHALL BE PERFORMED BY QUALIFIED PRESSURE. ON SYSTEMS WITH TECHNICIANS ONLY, FOLLOWING THE APPROPRIATE METERS, THE DIFFERENTIAL VALVE PROCEDURES AND WARNINGS AS PRESENTED IN WILL KEEP LIQUID UNDER PRESSURE THIS MANUAL. -
Page 6: Pump Assembly
MAINTENANCE 5. To remove locknuts and lockwashers (24A and 24B): 3. Without installing the head O-ring (72) or mechanical seal components, temporarily attach the outboard head (20) a. Bend up the engaged lockwasher tang and rotate the and bearing (24) to the casing (12). Install and hand- locknut counterclockwise to remove it from the shaft tighten two head capscrews (21), 180 degrees apart. - Page 7 MAINTENANCE 16. LOCKNUT ADJUSTMENT 8. MECHANICAL SEAL INSTALLATION It is important that the bearing locknuts (24A) and Rotating Assembly - lockwashers (24B) be installed and adjusted properly. a. Apply a small amount of motor oil on the shaft between Overtightening locknuts can cause bearing failure or a the shaft threads and the rotor.
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Page 8: General Pump Troubleshooting
6. Mechanical seal faces cracked, scratched, pitted or dirty. PEOPLE PROVIDING FLOW TECHNOLOGY WORLDWIDE 1809 Century Avenue, Grand Rapids, Michigan 49509-1595, U.S.A. Telephone: (616) 241-1611 • Fax: (616) 241-3752 E-mail: blackmer@blackmer.com • Internet Address: www.blackmer.com Litho in U.S.A • © Copyright 2000...
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