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BLACKMER LIQUEFIED GAS PUMPS
FOR LP-GAS AND NH
INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS
Patent Protected by U.S. Patent 6030191 and Related Foreign Patents.
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 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 ...................................................... 11
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on Blackmer Parts List 501-L01
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: LGL3021A
Page
960439
INSTRUCTIONS NO. 501-L00
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
Jan 2012
Replaces
New
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Summary of Contents for Dover Blackmer LGL3021A
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Page 1: Table Of Contents
960439 BLACKMER LIQUEFIED GAS PUMPS INSTRUCTIONS NO. 501-L00 FOR LP-GAS AND NH SERVICE, TRUCK AND BASE MOUNTED Section Effective Jan 2012 INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS Replaces MODEL: LGL3021A Patent Protected by U.S. Patent 6030191 and Related Foreign Patents. SAFETY DATA This is a SAFETY ALERT SYMBOL. -
Page 2: Pump Data
SAFETY DATA Failure to set the vehicle emergency Failure to disconnect and lockout brake and chock wheels before electrical power before attempting performing service can cause severe maintenance can cause shock, burns or personal injury or property damage death Hazardous Hazardous voltage. -
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
GENERAL INSTALLATION AND OPERATION PUMP RELIEF VALVE AND BYPASS VALVE CHECK VALVES NOTICE: The use of check valves or foot valves in the supply tank is The pump internal relief valve is designed to protect the not recommended with self-priming, positive displacement pump from excessive pressure and must not be used as pumps. -
Page 5: Coupling Alignment
MOTOR DRIVEN PUMPS Measure the span length as shown in Figure 6. COUPLING ALIGNMENT Adjust the motor base (183) and apply a specified force The pump must be directly coupled to a gear reducer and/or (see Table 1) against the belt, at the center of the span, driver with a flexible coupling. -
Page 6: Pre-Start Up Check List
MOTOR DRIVEN PUMPS Check the flow rate to ensure the pump is operating PRE-START UP CHECK LIST within the expected parameters. Record flow rate in the Inspect complete piping system and supports to ensure “Initial Start Up” section of this manual. that no piping loads are being placed on the pump. -
Page 7: Hydraulic Drive
TRUCK MOUNTED PUMPS START UP PROCEDURES NOTICE: A drive shaft guard between the pto and Consult the "General Pump Troubleshooting" section of pump must be provided to prevent this manual if difficulties during start up are experienced. personal injury, property damage, or death. -
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"... -
Page 9: Vane Replacement
MAINTENANCE To remove locknuts and lockwashers (24A and 24B): VANE REPLACEMENT Bend up the engaged lockwasher tang and rotate NOTICE: the locknut (24A) counterclockwise to remove it from Maintenance shall be performed by qualified technicians the shaft only, following the appropriate procedures and warnings Slide the lockwasher (24B) off the shaft. -
Page 10: Pump Assembly
MAINTENANCE PUMP ASSEMBLY After the bottom vanes and push rods are installed, insert the rotor and shaft (13) fully into the casing Before reassembling the pump, inspect all parts for wear or (12). damage, and replace as required. Wash out the bearing/seal recess of the head and remove any burrs or nicks from the Install the remaining vanes (14) into the top positions rotor and shaft. -
Page 11: Troubleshooting
MAINTENANCE 14. Rotate the shaft by hand to engage the mechanical seal Tighten the opposite locknut (24A) by hand until it is drive tangs, and to test for binding or tight spots. If the snug against the bearing (24). Then, using a spanner rotor does not turn freely, lightly tap the rims of the heads wrench, tighten the nut the width of one lockwasher with a soft faced mallet until the correct position is found. - Page 12 TROUBLESHOOTING - continued SYMPTOM PROBABLE CAUSE Pump speed too low. Reduced Capacity 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.
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