Page 1: Table Of Contents
COMPRESSORS CB9A-040 2009/10 INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS DISCONTINUED MODELS HD172A HD372A HD373A HD612A HD613A HDL372A HDL373A HDL612A HDL613A WARNING TABLE OF CONTENTS THIS PRODUCT MUST ONLY BE INSTALLED IN GENERAL INFORMATION......2 SYSTEMS WHICH HAVE BEEN DESIGNED BY THOSE Compressor Data QUALIFIED TO ENGINEER SUCH SYSTEMS.
Page 2: General Information
NAMEPLATE DATA A nameplate is attached to the side of all Blackmer compressors showing the Model No., I.D. No., and Serial No. These numbers...
Page 3 GENERAL INFORMATION HD TWO-STAGE COMPRESSORS ID NUMBER KEY VALVES Code Fields TNT-12 steel 1 & 2 TNT-12 steel w/ Unloaders Ductile Iron / PEEK DI/PEEK w/ Unloaders TNT-12 DI/PEEK TNT-12 DI/PEEK w/ Unloaders Stainless Steel SS w/ Unloaders O-RINGS Field 3 Buna-N Neoprene PTFE...
Page 4: Maximizing Compressor Life
Compressors may be fitted with suction valve unloaders to provide loadless start or capacity control functions. Blackmer unloaders are basically a piston and a plunger atop the suction valve. When pressure is applied to the top of the unloader piston, it and the plunger move downward, pushing the suction valve off its seat and unloading the compressor.
Page 5: Seal Arrangements
GENERAL INFORMATION SEAL (PACKING) ARRANGEMENTS Double and Triple Seal models are available to provide a wide range of leakage control/containment options. Before starting work on the compressor, note the seal orientation indicated by the 6 digit of the Compressor ID # shown on the compressor's nameplate.
Page 6 GENERAL INFORMATION SEAL ORIENTATION - DOUBLE SEAL COMPRESSORS SEAL ORIENTATION - ALL TRIPLE SEAL COMPRESSORS CB-9A-040 page 6...
Page 7: Optional Components
The relief valve should be installed in the discharge line between the compressor head and the first block valve. The type of relief valve should be appropriate to the application. Blackmer offers three relief valves for gas compatibility: brass for LP-Gas service; aluminum for anhydrous ammonia; A.S.M.E. steel for both services, and other applications.
Page 8: Installation
Check the electrical connections for proper wiring, grounding, etc. Blackmer compressors are shipped from the factory without oil in the crankcase. Fill with a high quality oil of the proper viscosity (see "Lubrication").
Page 9: Startup Procedure
OPERATION STARTUP PROCEDURE Start the compressor for a couple of second to verify proper rotation direction. See the section "Rotation". Start the compressor and check for oil pressure within 30 seconds. The pressure should register 25 psig (172 kPa). Adjust if necessary (see "Lubrication"). If proper oil pressure is not present, stop the compressor and correct the problem.
Page 10: Tool List
Crankshaft Bearings Torque Wrench, 0 to 45 ft-lb range Various Hoist (useful) Cylinder and Crosshead Guide BOLT TORQUES Proper bolt torques to use when reassembling the compressor. BOLT TORQUE FOR BLACKMER COMPRESSORS FT-LBS (Nm) Packing Crank Valve Con. Bearing Cross...
Page 11 MAINTENANCE CRANKCASE LUBRICATION Non-detergent motor oils are recommended. However, detergent oils can be used providing the gas being handled does not react with the detergent in the oil. If using a detergent oil, be sure there is not a compatibility problem.
Page 12: Compressor Disassembly
For valve disassembly instructions refer to "Valve Replacement." Removal of the piston requires a 3" adjustable spanner wrench with 1/4" pins (such as Blackmer PN 790316) Rotate the flywheel by hand to bring a piston to top dead center of the cylinder.
Page 13: Compressor Assembly
Before installing the packing boxes into the crosshead guide, inspect the piston rods for scoring or roughness. Remove any burrs or sharp edges. Lubricate the piston rods and packing box O-rings with light oil. Do not damage the packing when starting it over the rod. Use of a Blackmer packing installation tool is recommended.
Page 14 MAINTENANCE Set the upper distance piece over the piston rods and against the crosshead guide, loosely install upper distance piece capscrews. k. Install each upper packing box O-ring over the piston rods. Install each upper packing box over the piston rods. (Use the packing installation cone if available.) Rotate the crankshaft by hand a few times, then uniformly tighten the crosshead guide capscrews (and upper distance piece capscrews on triple-seal models) per the Bolt Torque Table.
Page 15: Valve Replacement
MAINTENANCE VALVE REPLACEMENT When replacing the valves, it is important to install the suction and discharge valves in the correct location in the cylinder head. NOTE: The valves may be removed without removing the cylinder head from the cylinder. Be sure to remove and replace the valve gaskets.
Page 16 VALVE REPLACEMENT (sizes 372, 373, 612 and 613) Remove the valve cap (or unloader assembly) and O-ring from each valve. Remove the valve hold down screw with a spanner wrench (such as Blackmer PN 790535). Valve Removal and Disassembly Remove the valve cover plate capscrews then lift off the cover plate and O-ring.
Page 17: Unloader Seal Replacement
VALVE REPLACEMENT (size 172) Remove the valve cap (or unloader assembly) and O-ring from each valve. Remove the valve hold down screw with a spanner wrench (such as Blackmer PN 790535). Valve Removal and Disassembly Remove the valve cage (and unloader plunger, actuator, and spring).
Page 18: Seal (Packing) Replacement
MAINTENANCE SEAL (PACKING) REPLACEMENT Refer to the "Compressor Disassembly" section to remove the packing boxes. Remove the upper and lower retainer ring from the packing box being serviced. Disassemble the packing box and discard the old packing sets and packing springs. NOTE: Before reassembling the packing boxes, refer back to "Seal Arrangements".
Page 19: Bearing Replacement
MAINTENANCE BEARING REPLACEMENT NOTE: When replacing the bearings, the entire bearing assembly, including the bearing cup and the bearing cone, must be replaced. Follow all steps in "Compressor Disassembly." Remove the Oil Pump per the section on "Oil Pump Replacement". Remove the flywheel.
Page 20: Oil Pump Replacement
MAINTENANCE OIL PUMP REPLACEMENT Remove the oil pump cover bolts and the oil pump cover. Remove the cover O-ring, oil pump ring and shaft assembly. Clean, inspect and replace parts as necessary. Place the oil pump shaft assembly (complete with oil pump rotor, key, retainer ring and new shaft O-ring) into the bearing housing.
Page 21: Extended Storage Procedures
EXTENDED STORAGE PROCEDURES If a compressor is not to be put into service for some time, or if a compressor is to be taken out of service for an extended period, the following procedures should be taken. Fill the crankcase with rust inhibiting oil. (New compressors are shipped from the factory without oil.) Squirt oil on the piston rods and crossheads through the nameplate opening.
Page 22: Troubleshooting
TROUBLESHOOTING PROBLEM STEP PROBABLE CAUSE WHAT TO CHECK IF PROBLEM STILL EXISTS GO TO STEP ... Low Transfer Worn or Broken Piston Rings Check condition of rings by restricting Rate discharge line. If pressure increases slowly, rings are probably faulty. Compressor Valve Faulty Remove and inspect for broken or worn springs, discs, or bodies.
Page 23 NOTES CB-9A-040 page 23...
Page 24 1809 Century Avenue, Grand Rapids, Michigan 49503 U.S.A. • (616) 241-1611 • Fax: (616) 241-3752 1108 So. Portland Avenue, Oklahoma City 73108 U.S.A. • (405) 942-6622 • Fax (405) 942-2855...

This manual is also suitable for:

Hd372a Hd373a Hd612a Hd613a Hdl372a Hdl373a ... Show all

BLACKMER HD172A Installation, Operation & Maintenance Instructions Manual

Quick Links

TABLE OF CONTENTS

Need help?

Questions and answers

Related Manuals for BLACKMER HD172A

Summary of Contents for BLACKMER HD172A

This manual is also suitable for:

Table of Contents