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OPERATION

 

CB9A-030    page 10/28

 

PRE-STARTUP CHECK LIST

 

 

Hazardous 

machinery can 

cause serious 

personal injury. 

Failure to disconnect and lockout 
electrical power or engine drive before 
attempting maintenance can cause 
severe personal injury or death 

1.  After the compressor is installed in the system, a 

complete leak test MUST be performed on both the 
compressor and the piping. 

 

 

Hazardous gases 

can cause property 

damage, personal 

injury or death 

Failure to properly leak test the 
compressor installation may result in 
leakage of explosive gas to the 
atmosphere creating an explosion 
hazard, possibly causing severe 
personal injury or death. 

2.  Re-check the system piping and the piping supports 

to ensure that no piping loads are being placed on 
the compressor. 

 

 

Extreme Heat can 

cause personal injury 

or property damage 

Discharge piping surface temperatures 
may be hot during operation (over 
158°F, 70°C).  Temperatures should be 
monitored and adequate warnings 
posted. 

3.  If V-belt driven, check the alignment of the motor 

and the compressor sheaves.  The faces of the 
sheaves must be parallel.  

4.  Ensure that pressure gauges are installed on both 

inlet and discharge of the compressor. 

5.  Blackmer compressors are shipped from the factory 

without oil in the crankcase.  Fill with a high quality 
non-detergent oil of the proper viscosity.  See 
"Crankcase Lubrication" in this manual. 

6.  Check the electrical connections for proper wiring, 

grounding, etc. 

7. With the power disconnected, remove the 

compressor nameplate.  Squirt oil onto each 
crosshead while rotating the compressor by hand to 
verify smooth operation. 

8.  Ensure that all guarding is properly installed. 

 

Hazardous 

machinery can 

cause serious 

personal injury. 

Operation 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 be a source of ignition in 
explosive atmospheres causing severe 
personal injury or death 

 

STARTUP PROCEDURE 

NOTICE: 

Consult the 'troubleshooting' section of this manual if 
difficulties during startup are experienced. 

1.  Start the compressor.  Oil pressure should register 

25 psig (1.7 bar-g) within 10 seconds.   

 

If proper oil pressure is not present, stop the 
compressor and correct the problem. 

 

Operating the compressor with low oil pressure will 
cause severe damage to the unit. Adjust if 
necessary.  See "Setting the Oil Pressure" in this 
manual.   

 

Hazardous gases 

can cause property 

damage, personal 

injury or death

Operation of the compressor with low or 
no oil may result in extreme 
temperature in the crankcase.  This 
could be an ignition source in the 
presence of explosive gas and could 
lead to severe personal injury or death. 

 

The oil pump on these models will operate in either 
direction of crankshaft rotation. 

2.  Verify that the suction and discharge pressures are 

within the expected ranges. 

 

Operating limits listed in the "Compressor Data" 
section must not be exceeded.

 

3.  Check for leakage from the piping and equipment, 

and repair as necessary. 

4.  If the seals (packing) have just been replaced, or if 

the compressor has been out of service for over 6 
months, the lower seal MUST be manually 
lubricated during the first 60 minutes of operation.  
See "Seal (Packing) Replacement" section.  New 
compressors have had the packing broken in at the 
factory. 

5.  On newly rebuilt units, the valve hold down screws, 

valve cover plate bolts and cylinder head bolts 
MUST have their torque checked after 60 minutes 
running time.  Also re-tighten all hold down bolts, 
flywheel bolts, etc. after 60 minutes running time.  
See the "Bolt Torque." table. 

Содержание HD942A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 28: ...1528 3 e 5...

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