Table of Contents
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BLACKMER LIQUEFIED GAS PUMPS
FOR LP-GAS AND NH
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
MODELS: LGLD2E, LGL2E, LGLD3F, LGL3F
and discontinued LGLD3E, LGL3E
TABLE OF CONTENTS
SAFETY DATA ..................................................................... 1
Pump Identification ..................................................... 2
Technical Data ........................................................... 2
Initial Pump Start Up Information ............................... 2
Welded Connections .................................................. 3
Pre-Installation Cleaning ............................................ 3
Location and Piping .................................................... 3
Pump Relief Valve and Bypass Valve ........................ 4
Check Valves ............................................................. 4
Pump Rotation ........................................................... 4
Pump Mounting .......................................................... 4
Coupling Alignment .................................................... 5
V-Belt Drive ................................................................ 5
V-Belt Disassembly .................................................... 5
Pre-Start Up Check List ............................................. 6
Start Up Procedures ................................................... 6
TRUCK MOUNTED PUMPS
Truck Mounting .......................................................... 6
Pump Drive ................................................................ 6
Hydraulic Drive ........................................................... 7
Pre-Start Up Check List ............................................. 7
Start Up Procedures ................................................... 7
Pump Speed .............................................................. 8
Strainers ..................................................................... 8
Lubrication ................................................................. 8
Vane Replacement ..................................................... 9
Pump Disassembly .................................................... 9
Pump Assembly ....................................................... 10
TROUBLE SHOOTING ...................................................... 12
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on Blackmer Parts List 501-C01
Blackmer pump manuals and parts lists may be obtained from
Blackmer's website (www.blackmer.com) or by contacting
Blackmer Customer Service.
SERVICE TRUCK AND BASE MOUNTED
3
Page
960417
INSTRUCTIONS NO. 501-C00
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 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.
Section
501
Effective
Apr 2020
Replaces
Jan 2019
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Table of Contents
Related Manuals for BLACKMER LGL3E
Summarization of Contents
Pump Data
Pump Identification
Records pump serial, ID, and model designation for future reference.
Technical Data
Provides torque, speed, pressure, and temperature ratings for different pump models.
Initial Pump Start Up Information
Fields to record model, serial, ID, installation date, and gauge readings for initial setup.
General Installation and Operation
Welded Connections
Instructions for handling O-rings during welding to prevent damage.
Pre-Installation Cleaning
Emphasizes flushing the pump and piping to remove residual test fluid and contaminants.
Location and Piping
Guidance on pump placement, inlet/discharge piping size, strainers, and expansion joints.
Pump Relief Valve and Bypass Valve
Details the function and setup of internal and external bypass valves for pressure protection.
Check Valves
Discusses the recommendation against check valves in supply tanks for self-priming pumps.
Pump Rotation
Explains how to confirm and change pump rotation direction for different models.
Motor Driven Pumps
Pump Mounting
Instructions for securely mounting the pump base to a level concrete floor.
Coupling Alignment
Procedures for ensuring proper angular and parallel alignment of pump and motor shafts.
V-Belt Drive
Steps for installing and adjusting V-belts, including sheave alignment and tensioning.
V-Belt Disassembly
Procedure for safely removing V-belts, sheaves, and hubs from the drive system.
Pre-Start Up Check List
List of critical checks before starting motor-driven pumps, including piping, alignment, and gauges.
Start Up Procedures
Step-by-step guide for safely starting motor-driven pumps, monitoring pressure and flow.
Truck Mounted Pumps
Truck Mounting
Guidance on safely mounting the pump on a truck frame or saddle.
Pump Drive
Recommendations for power take-off drive lines, universal joints, and shaft alignment.
Hydraulic Drive
Information on using hydraulic motors for driving truck-mounted pumps and adapter requirements.
Pre-Start Up Check List
Checks for truck-mounted pumps before start-up, including piping, gauges, and hose connections.
Start Up Procedures
Steps for starting truck-mounted pumps, managing bypass lines, and monitoring parameters.
Maintenance
Pump Speed
Ensuring speed control devices prevent exceeding maximum RPM specifications for truck pumps.
Strainers
Importance of regular cleaning of strainers to prevent pump starvation.
Lubrication
Guidelines for lubricating pump bearings and hydraulic motors, including recommended grease.
Vane Replacement
Detailed procedure for removing and installing new vanes in the pump rotor.
Pump Disassembly
Step-by-step instructions for taking the pump apart safely, noting warnings and procedures.
Pump Assembly
Instructions for reassembling the pump, including seal installation and bearing adjustment.
Locknut Adjustment
Procedure for correctly adjusting bearing locknuts to prevent failure or wear.
Trouble Shooting
Pump Not Priming
Lists probable causes for the pump failing to prime, such as air leaks or clogged strainers.
Reduced Capacity
Identifies potential reasons for decreased pump output, including low speed or internal restrictions.
Damaged Vanes
Probable causes for damaged vanes, including foreign objects and incorrect installation.
Broken Shaft
Likely causes for a broken pump shaft, such as foreign objects or misalignment.
Mechanical Seal Leakage
Factors contributing to mechanical seal leakage, including incompatible O-rings or damaged faces.
Overload on Motor
Reasons for motor overload, such as insufficient horsepower, misalignment, or bearing issues.
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