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BLACKMER HD COMPRESSORS 

960478

 

INSTRUCTIONS  CB9A-030 

Installation, Operation, and Maintenance Instructions

 

Section 

Effective 

Replaces 

901 
Jan 2007 
Oct 2006 

DISCONTINUED

 MODELS HD942A and HDL942A 

 

 

 

TABLE OF CONTENTS

 

SAFETY DATA

..........................................................1 

GENERAL INFORMATION

 

 Compressor Data .................................................2 
 Nameplate Data ...................................................3 

INSTALLATION

 

 Location 

and Piping..............................................5 

 

Mounting the Compressor Unit ............................5 

 Compressor 

Flywheel ..........................................6 

 V-Belt 

Drive...........................................................6 

 Suction 

Valve Unloaders......................................7 

 Maximizing 

Compressor Life................................7 

 Seal 

Arrangements...............................................8 

 Typical 

Compressor, Drawing..............................9 

 Relief 

Valves.........................................................9 

 4-Way 

Valves .......................................................9 

 Liquid 

Traps ..........................................................9 

 Temperature 

and 

Pressure Switches ..................9 

 Pressure Gauges .................................................9 

 

OPERATION 

 Pre-Start 

up 

Check List ........................................ 10

 Start 

Up 

Procedure ............................................... 10

MAINTENANCE

 

 Service 

Schedule.................................................. 11

 Tool 

List................................................................. 12

 Bolt 

Torque Table ................................................. 12

 Crankcase 

Lubrication.......................................... 13

 

Setting the Oil Pressure........................................ 13

COMPRESSOR DISASSEMBLY

.............................. 14

COMPRESSOR ASSEMBLY

.................................... 16

UNLOADER SEAL REPLACEMENT

....................... 18

VALVE REPLACEMENT

........................................... 18

SEAL (PACKING) REPLACEMENT

........................ 20

BEARING REPLACEMENT

...................................... 23

OIL PUMP REPLACEMENT

..................................... 24

EXTENDED STORAGE

............................................. 24

TROUBLESHOOTING

............................................... 25

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. 

 

NOTICE 

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. 

 

r2010feb

Summary of Contents for HD942A

Page 1: ...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 p...

Page 2: ...system must be flushed and decontaminated inside and out prior to performing service or maintenance Hazardous pressure can cause serious personal injury or property damage Disconnecting fluid or pres...

Page 3: ...mer products may be obtained from Blackmer s website www blackmer com or be contacting Blackmer s Customer Service NAMEPLATE DATA A nameplate is attached to the side of all Blackmer compressors showin...

Page 4: ...L PACKING ORIENTATION Field 6 3 ring Segmented A 5 ring Segmented B Vent Segmented D SEAL MATERIAL Field 7 PTFE T CYLINDER HEAD Field 8 Ductile Iron A TNT 12 DI Cylinder B TNT 12 DI Cyl Head C PISTON...

Page 5: ...ntly if the system requires 3 Expansion joints placed within 36 0 9 m of the compressor will compensate for expansion and contraction of the pipes Contact the flexible connector hose manufacturer for...

Page 6: ...ll capscrews evenly and progressively in rotation to the torque value in Table 4 There must be a gap between the hub flange and the flywheel with installation is complete Do not over torque Do not att...

Page 7: ...rrosion or even destroy the compressor Figure 4 HDL942 Water Conntections MAXIMIZING COMPRESSOR LIFE Life of critical compressor components such as piston rings valves and packing will vary considerab...

Page 8: ...be used Seal Type D This seal arrangement is designed to allow the packing to be vented if desired Vent openings to each rod s packing are located in the cylinder casting below the valves The 1 8 open...

Page 9: ...ameter X 50 tall fitted with an internal stainless steel mist pad a relief valve a manual drain valve and one or two electric float switches Level gauges and automatic drain systems are also available...

Page 10: ...without guards in place can cause serious personal injury major property damage or death Hazardous gases can cause property damage personal injury or death Flywheel guard contact with moving parts may...

Page 11: ...nts during compressor operation can cause serious personal injury death or major property damage Hazardous gases can cause property damage personal injury or death Explosive gas can cause property dam...

Page 12: ...Seal Replacement Feeler gauges or Depth Micrometer Piston Clearance Screwdriver Flat Blade Nameplate screws Packing Installation Pliers Rubber Mallet Arbor Press Wrist Pin Removal Bearing Puller Cran...

Page 13: ...9 Oil Viscosity Before changing the oil bring the compressor up to normal operating temperature Remove the crankcase drain plug and drain the oil into an adequately sized container Remove the oil pick...

Page 14: ...4 threaded puller holes If two 1 4 bolts are not readily available the oil pump cover bolts may be used d Remove the upper shims the piston and the lower shims Keep the upper and lower shim sets toget...

Page 15: ...e same upper and lower halves To avoid confusion work on one connecting rod at a time or mark the individual halves with corresponding numbers 9 Remove the opposite connecting rod and crosshead assemb...

Page 16: ...e b Lubricate the inside bore of the crosshead guide with light oil c Set the crosshead guide over the piston rods and the crossheads and slowly lower it against the crankcase Make certain that the cr...

Page 17: ...the upper valve pockets j Rotate the crankshaft until the piston is at bottom dead center Measure the clearance between the piston and packing box through a lower valve pockets k Compare the piston cl...

Page 18: ...wrench is helpful 3 Push the unloader piston out the top of the unloader body 4 Inspect and replace the seals as needed note the seal orientation 5 Inspect the unloader body bore it must be clean and...

Page 19: ...lve after removing the unloader actuator retaining ring actuator spring and post b Separate the valve halves and remove springs and plate c Inspect and replace worn components d Reassemble valves as s...

Page 20: ...G BOX a Remove the bolts from the bottom of the packing box then remove the packing gland and packing spacer b Remove the packing cups with packing ring pairs and O rings If the packing cups are diffi...

Page 21: ...SEAL PACKING REPLACEMENT CB9A 030 page 21 28 Figure 19 Type D Packing Detail Figure 17 Type B Packing Detail...

Page 22: ...y lubricated with oil several times during the first 60 minutes of compressor operation This will prevent overheating of the piston rods and potential damage to the packing material If possible perfor...

Page 23: ...mbly d Press a bearing cone onto each end of the crankshaft with the tapered end outward The bearing race should rest against the shoulder on the crankshaft e Lubricate the bearings with grease 8 Inst...

Page 24: ...age to the compressor may occur Complete compressor disassembly and replacement of rod packing bearings and other parts may be required 1 Keep a written record storage procedures performed preferably...

Page 25: ...lve hold down screws 9 Knocks or Other Noises 9 Worn Internal Parts Inspect through inspection plates and repair as necessary 4 10 Oil Pump Relief Valve Not Properly Set Set oil pump relief valve 11 1...

Page 26: ...NOTES CB9A 030 page 26 28...

Page 27: ...rface Temperature An ATEX compliant temperature switch must be installed if the compressor is used in an ATEX zone It is the end users responsibility to ensure the compressor does not exceed the tempe...

Page 28: ...1528 3 e 5...

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