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BLACKMER LB942A Installation, Operation And Maintenance Instructions

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BLACKMER LB COMPRESSORS
Installation, Operation, and Maintenance Instructions
DISCONTINUED

TABLE OF CONTENTS

SAFETY DATA ..........................................................1
Compressor Data .................................................2
Nameplate Data ...................................................3
Maximizing Compressor Life................................4
Location and Piping..............................................5
Mounting the Compressor Unit ............................5
Compressor Flywheel ..........................................6
V-Belt Drive...........................................................6
Relief Valves.........................................................8
4-Way Valves .......................................................8
Liquid Traps ..........................................................8
Pressure Gauges .................................................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 or 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.
MODEL: LB942A
Pre-Start up Check List .......................................... 9
Start Up Procedure ................................................. 9
Service Schedule.................................................. 10
Tool List................................................................. 11
Bolt Torque Table ................................................. 11
Crankcase Lubrication.......................................... 12
Setting the Oil Pressure........................................ 12
COMPRESSOR DISASSEMBLY.............................. 13
COMPRESSOR ASSEMBLY.................................... 14
VALVE REPLACEMENT........................................... 17
SEAL (PACKING) REPLACEMENT ........................ 18
BEARING REPLACEMENT...................................... 20
OIL PUMP REPLACEMENT ..................................... 21
EXTENDED STORAGE............................................. 21
TROUBLESHOOTING............................................... 22
Blackmer compressors 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.
These instructions are intended to assist in the
installation and operation of Blackmer compressors
and MUST be kept with the compressor.
Blackmer compressor service and maintenance shall
be performed by qualified technicians ONLY. Service
and maintenance 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 compressor.
Maintain ALL system and compressor operation and
hazard warning decals.
For handling liquefied gas, NFPA Pamphlet 58 should
be consulted.
960475
INSTRUCTIONS CB5A-030
Section
502
Effective
Oct 2006
Replaces
588/B July 2004
r2010feb
NOTICE

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Summary of Contents for BLACKMER LB942A

  • Page 1: Table Of Contents

    EXTENDED STORAGE..........21 TROUBLESHOOTING..........22 SAFETY DATA NOTICE Blackmer compressors MUST only be installed in This is a SAFETY ALERT SYMBOL. systems which have been designed by qualified When you see this symbol on the product, or in the engineering personnel. The system MUST conform to...

  • Page 2: Compressor Data

    Hazardous gases cause personal injury can cause property or property damage damage, personal injury or death COMPRESSOR DATA COMPRESSOR DATA LB942A MAWP - psia (Bar) 350 (24.1) Displacement CFM (m /hr) @ 350 rpm (Minimum Speed) 52.5 (89.1) @ 835 rpm (Maximum Speed) * 125.1 (213)

  • Page 3: General Information

    1. Note the nameplate data in the space provided above. 2. Obtain the appropriate parts lists for the model in question. Manuals and Parts Lists for Blackmer products may be obtained from Blackmer's website (www.blackmer.com) or be contacting Blackmer's Customer Service.

  • Page 4: Maximizing Compressor Life

    GENERAL INFORMATION An 11 character "I.D. No." identifies the construction of the compressor. Valves Field 1 PEEK Valves Field 2 Standard Valve O-rings Field 3 Buna-N Gaskets Field 4 Iron Piston Rings Field 5 Glass & Moly Filled PTFE Seal (Packing) Orientation Field 6 Standard Packing Material...

  • Page 5: Installation

    • Destroy the compressor. INSTALLATION NOTICE: 3. Expansion joints, placed within 36" (0.9 m) of the Blackmer compressors must only be installed in compressor, will compensate for expansion and systems designed by qualified engineering personnel. contraction of the pipes. Contact the flexible...

  • Page 6: Compressor Flywheel

    Check compressor mounting bolts and baseplate V-BELT DRIVES anchor bolts regularly. Most Blackmer compressors are driven via V-belts which must be properly aligned and tensioned. COMPRESSOR FLYWHEEL Blackmer compressors are fitted with flywheels which MUST be used regardless of the type of drive system Failure to disconnect and lockout employed.

  • Page 7: Liquefied Gas Transfer Piping Schematic

    INSTALLATION Figure 4 - Liquid Transfer Flow Schematic Figure 5 - Vapor Recovery Flow Schematic Figure 6 - Typical Liquefied Gas Transfer Compressor CB5A-030 page 7/24...

  • Page 8: Relief Valves

    The switch should be set to actuate at a See the 'Troubleshooting' section. temperature just above the maximum operating Blackmer offers various relief valves for gas and temperature of the compressor. application compatibility: ATEX compliant compressors must have a temperature •...

  • Page 9: Operation

    Failure to disconnect and lockout inlet and discharge of the compressor. electrical power or engine drive before 5. Blackmer compressors are shipped from the factory attempting maintenance can cause without oil in the crankcase. Fill with a high quality severe personal injury or death non-detergent oil of the proper viscosity.

  • Page 10: Maintenance

    NOTICE: Blackmer compressor service and maintenance shall be performed by qualified technicians only. Service and maintenance shall conform to all applicable local and national regulations and safety standards. SERVICE SCHEDULE Daily Weekly...

  • Page 11: Tool List

    Arbor Press Wrist Pin Removal Bearing Puller Crankshaft Bearings Torque Wrench Various Hoist (useful) Cylinder and Crosshead Guide Table 6 - TOOL LIST BOLT TORQUE FOR MODEL LB942A LBS-FT (Nm) Crankcase Connecting Bearing Bearing Cover Crosshead Inspection Cylinder Head Rod Bolt...

  • Page 12: Crankcase Lubrication

    The oil pump on these models will operate in either direction of crankshaft rotation. Models Quarts Liters SETTING THE OIL PRESSURE (see Figure 7) LB942A 6.62 1. The oil pressure should be about 25 psig Table 8 - Oil Capacity (1.73 Bar). 2. Loosen the locknut. Air Temperature ISO Grade 3.

  • Page 13: Compressor Disassembly

    Remove oil deflector ring from the piston rod. d. Remove the lower packing box hold-down ring using a 3" adjustable spanner with ¼" pins (Blackmer PN 790316). e. Place a wooden block (or the end of a mallet handle) through the nameplate opening on top of the crosshead.
  • Page 14 COMPRESSOR DISASSEMBLY Figure 9 - Packing Boxes, Crosshead and Connecting Rod Detail 8. REMOVING CONNECTING 9. Remove opposite connecting ASSEMBLIES (with the crossheads attached). crosshead assembly. The piston rod is permanently attached to the 10. Rest the crosshead assembly on a bench. crosshead to form a single assembly.

  • Page 15: Compressor Assembly

    The packing installation tool assembly, first coat the wrist pin, the wrist pin (Blackmer Part No. 795040) must be used to bore in the crosshead assembly, and the wrist avoid damaging the packing when starting it pin bushing in the connecting rod with grease.
  • Page 16 COMPRESSOR ASSEMBLY c. Ensure that the valve cutouts on the upper g. Tighten the piston nut on securely. packing boxes are aligned with the cylinder h. Install the head (without the O-ring), and tighten valve pockets. the head bolts securely. d.

  • Page 17: Valve Replacement

    Tighten the cover plate 2. Remove the valve hold down screw with a spanner capscrews according to Table 7 - "Bolt Torque." wrench (Blackmer PN 790535). Install the hold down screw and tighten according to Table 7 - "Bolt Torque."...

  • Page 18: Seal (Packing) Replacement

    SEAL (PACKING) REPLACEMENT Two seals separated by a distance piece seal the gas in g. Install the bottom packing cup with its O-ring the cylinder and prevent contamination by the and T/T packing ring pair. crankcase oil. The upper seal consists of four pairs of h.
  • Page 19 SEAL (PACKING) REPLACEMENT Figure 17 - Lower Packing Assembly 4. Proceed according to steps 5 through 13 of "Compressor Assembly." 5. LOWER PACKING BREAK-IN Do not insert objects or fingers in The lower packing MUST be manually lubricated inspection cavity. Can cause severe with oil several times during the first 60 minutes of personal injury compressor...

  • Page 20: Bearing Replacement

    BEARING REPLACEMENT NOTICE: When replacing the bearings, the entire c. Note the proper orientation and carefully press bearing assembly, including the bearing cup and the outboard bearing cup into the bearing the bearing cone, must be replaced. carrier assembly. d. Press a bearing cone onto each end of the 1.

  • Page 21: Oil Pump Replacement

    OIL PUMP REPLACEMENT 4. Place the spring and the drive cone in the end of the crankshaft. 5. Note the slot in the end of the crankshaft and the drive tab on the back of the oil pump assembly. Install the oil pump assembly into the bearing carrier with the tab and slot aligned.

  • Page 22: Troubleshooting

    TROUBLESHOOTING IF PROBLEM PROBLEM STEP PROBABLE CAUSE WHAT TO CHECK STILL EXISTS GO TO STEP ... 4-Way Valve Leaking Lubricate with a stick lubricant compatible with (when equipped) material being transferred. Check condition of rings by restricting discharge Worn or Broken Piston Rings line.
  • Page 23 ATEX zone. Closed inlet or outlet valves can result in excess compressor surface temperature conditions. Intended Use: Blackmer compressors are intended for use in liquefied gas transfer or gas compression applications. The compressor must be operated in systems, with gasses and at conditions for which it is specifically designed and sized.
  • Page 24 1528, ." " 3, e .5...

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