BLACKMER LGLH2A Installation, Operation And Maintenance Instructions
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BLACKMER LGLH2A Installation, Operation And Maintenance Instructions

Liquefied gas pumps for lp-gas or nh3 service truck and base mounted
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BLACKMER LIQUEFIED GAS PUMPS
FOR LP-GAS or NH
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
Patent Protected by U.S. Patent 6030191 and Related Foreign Patents.

TABLE OF CONTENTS

SAFETY DATA ..................................................................... 1
PUMP DATA ......................................................................... 2
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 Mounting .......................................................... 6
Pump Drive ................................................................ 6
Hydraulic Drive ........................................................... 7
Pre-Start Up Check List ............................................. 7
Start Up Procedures ................................................... 7
Pump Speed .............................................................. 8
Strainers ..................................................................... 9
Lubrication .................................................................. 9
Vane Replacement ..................................................... 9
Pump Disassembly .................................................... 9
Pump Assembly ....................................................... 10
TROUBLE SHOOTING ...................................................... 11
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on Blackmer Parts List 501-J01.
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
MODEL: LGLH2A
Page
960419
INSTRUCTIONS NO. 501-J00

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
Jun 2016
Replaces
Jan 2014

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Summary of Contents for BLACKMER LGLH2A

  • Page 1: Table Of Contents

    BEFORE performing any work on indicate reference numbers on Blackmer Parts List 501-J01. the Blackmer liquefied gas pumps. Blackmer pump manuals and parts lists may be obtained from Maintain ALL system and Blackmer liquefied gas Blackmer's website (www.blackmer.com) or by contacting pump operation and hazard warning decals.

  • Page 2: Pump Data

    A pump Identification tag, containing the pump serial number, I.D. number, and model designation, is attached to each pump. It is recommended that the data from this tag be recorded and filed for future reference. If replacement parts are needed, or if information pertaining to the pump is required, this data must be furnished to a Blackmer representative. TECHNICAL DATA INITIAL PUMP START UP INFORMATION Model No.: ____________________________________...

  • Page 3: General Installation And Operation

    GENERAL INSTALLATION AND OPERATION NOTICE: LOCATION AND PIPING Blackmer pumps must only be installed in systems Pump life and performance will be significantly reduced when designed by qualified engineering personnel. System installed in an improperly designed system. Before starting design must conform with all applicable regulations and the layout and installation of the piping system, review the codes and provide warning of all system hazards.

  • Page 4: Pump Relief Valve And Bypass Valve

    Blackmer LGLH pump models are equipped with a double approximately 190 PSI (13.1 bar). ended rotor and shaft, enabling them to be driven from either The 'Alternate Discharge to Storage Tank' line and manual shaft end.

  • Page 5: Coupling Alignment

    Figure 5 – Coupling Alignment V-BELT DRIVE Operation without guards in place can For installation of Blackmer V-belt units, first mount the pump cause serious personal injury, major and the motor base to the unit base. Do not fully tighten the property damage, or death.

  • Page 6: Pre-Start Up Check List

    MOTOR DRIVEN PUMPS With the discharge valve still closed, momentarily close PRE-START UP CHECK LIST the manual shut-off valve in the bypass return line to Inspect complete piping system and supports to ensure check the pump internal relief valve. The differential that no piping loads are being placed on the pump.

  • Page 7: Hydraulic Drive

    Start the pump. Confirm proper pump rotation by checking the pump rotation arrows. Hydraulic motors should be well supported with their shafts parallel to the pump shaft in all respects. Blackmer provides Check the pump speed. Pump speed must never exceed an optional close-coupled hydraulic motor adapter. The the recommended maximum.

  • Page 8: Pump Speed

    TRUCK MOUNTED PUMPS PUMP SPEED PTO and hydraulically driven units MUST contain speed control devices to prevent pump speeds above the maximum RPM specifications, regardless of the truck engine unloading speeds. Should fluid delivery be appreciably less than expected, see the "General Pump Troubleshooting" section. MAINTENANCE Failure to set the vehicle emergency Failure to disconnect and lockout...

  • Page 9: Vane Replacement

    MAINTENANCE Remove the head capscrews (21) and carefully pry the VANE REPLACEMENT head (20) away from the casing (12). NOTICE: Slide the head (20) off the shaft. The head O-ring (72), Maintenance shall be performed by qualified technicians bearing (24), mechanical seal stationary seat and only, following the appropriate procedures and warnings stationary O-ring (153A &...

  • Page 10: Pump Assembly

    MAINTENANCE PUMP ASSEMBLY Install a new head O-ring (72) in the groove on the inside face of the head (20). Lay the O-ring flat and start in on Before reassembling the pump, inspect all parts for wear or one side of the groove, stretching ahead with the fingers, damage, and replace as required.

  • Page 11: Trouble Shooting

    MAINTENANCE 15. LOCKNUT ADJUSTMENT f. Tighten the opposite locknut (24A) by hand until it is snug against the bearing (24). Then, using a spanner It is important that the bearing locknuts (24A) and lockwashers (24B) be installed and adjusted properly. wrench, tighten the nut the width of one lockwasher tang.
  • Page 12 PUMP TROUBLESHOOTING-continued Reduced Capacity Pump speed too low. Internal control valve not fully open. Excessive restriction in the inlet line (i.e.: undersized piping, too many elbows & fittings, clogged strainer, etc.). Damaged or worn parts (vanes, cylinder, or rotor). Excessive restriction in discharge line causing partial flow through the relief valve. Relief Valve worn, set too low, or not seating properly.

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