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Air Driven Gas Booster Compressor, 8” Drive AG Series • OM-12J 

4. Operation and Safety Considerations 

NOTE: Before operation be sure the gas supply has been turned on to the booster inlet and allowed to 
flow through and equalize into the downstream system and/or receivers. 

4.1 Starting the Drive 

Turn on the drive air (or gas) gradually. The pump will automatically start to cycle with the application of 
approximately 25 psi to the inlet and air pilot. 

NOTE: On initial start, or if unit has been idle for an extended period of time, the starting drive pressure 
may have to be somewhat higher. 

Observe the buildup in output pressure with a conveniently located gauge rated for the maximum system 
pressure. 

Maximum output pressure can be automatically controlled by a Haskel air pilot pressure switch or similar 
device backed up by a safety relief valve. (Refer to current catalogs for complete details.) In some 
applications, the unit may also be allowed to simply pump-up to its maximum pressure and stall - provided 
that ample strength allowance for outlet system piping and valves has been included. 

Leaving the drive and liquid sections pressurized for extended periods is not detrimental to the unit but 
may be inadvisable for safety considerations depending on the installation. 

5. Maintenance 

5.1 General 

WARNING: Use any cleaning solvent in a well ventilated area. Avoid excessive contact with skin. Keep 
away from extreme heat and open flame. 

Disassemble equipment only to the extent required to repair or replace defective parts. Do not disturb 
unaffected component parts or plumbing connections. 

NOTE: Detailed assembly drawings particular to your specific model have been included as a part of 
these maintenance instructions. Consider these maintenance instructions as general information while 
the assembly drawings reflect detail information, directly related to your particular drive/pump unit. 

Certain assemblies, rarely requiring disassembly for servicing, have been assembled with Loctite CV 
(Blue) No. 242, as a locking compound. (Refer to NOTES column in assembly drawing.) If disassembly of 
these parts is essential, they should be carefully cleaned and then reassembled using Loctite CV. Use 
care to avoid getting compound into other joints or moving parts. 

It is good maintenance practice to replace bearings, seals, o-rings and backup rings (refer to NOTES 
column on applicable assembly drawing for seal kit (s) available) whenever equipment is opened for part 
inspection and/or replacement. 

Air Drive Section 

Parts removed for inspection should be washed in an aqueous based industrial cleaner, free of V.O.C., 
such as Blue Gold or equivalent. Avoid use of Trichlorethylene, Perchlorethylene, etc. Such cleaners will 
damage seals and finish on air barrel and end caps. 

Gas Pumping Section 

Parts should preferably be washed in an aqueous based industrial cleaner, free of V.O.C., such as Blue 
Gold or equivalent. 

Inspect moving parts for evidence of wear (scoring or scratches) due to foreign material. Inspect all 
threaded parts for crossed or damaged threads. Replace part if thread damage exceeds 50 percent of 
one thread, if less than 50 percent, chase threads with appropriate tap or die. 

5.2 Cycling Valve Assembly 

While continually referring to your detailed assembly drawing, disassemble cycling valve assembly in the 
following manner: 

Summary of Contents for Haskel 8AGD-1

Page 1: ...OM 12J www haskel com Operating and Maintenance Instructions Air Driven Gas Booster Compressors 8 Drive AG Series 8 8 AG 8 AG...

Page 2: ...ion and to boost inlet gas to desired output free of hydrocarbon contamination Exhaust from the air drive chilled due to the expansion after performing work is used to cool the gas piston barrels thro...

Page 3: ...a compression ratio of approximately 25 1 because the inlet check valve will no longer open at any point during the suction stroke to admit fresh gas Therefore applications requiring high compression...

Page 4: ...her pressure output line from the second stage pump is then aftercooled by passing through the plenum cooler prior to the final output port Figure 2 8AGT Series Intercooling Aftercooling Diagram Under...

Page 5: ...he drive requires approximately 25 psi to trigger the valve spool and pilot piston as lubricated at the factory It is not necessary or desirable to use an airline lubricator 3 3 1 MUFFLERS For minimum...

Page 6: ...t parts or plumbing connections NOTE Detailed assembly drawings particular to your specific model have been included as a part of these maintenance instructions Consider these maintenance instructions...

Page 7: ...aged worn or swollen If any special tools are required it will be noted on the detailed assembly drawing 5 2 3 Reach inside valve body Remove first plastic bumper Carefully pull out spool Inspect 2 sp...

Page 8: ...seating tool 5 2 9 Repeat installation of remaining parts per paragraph 5 2 3 1 5 3 Pilot Stem Valves NOTE Before repair test according to paragraph 5 4 Disassemble pilot valves in the following manne...

Page 9: ...essure until pilot valve on cycling valve end is contacted by drive piston and it reverses direction Then gauge will read full pilot air pressure until opposite pilot valve on flow fitting end is cont...

Page 10: ...assembly drawing during repair 5 6 1 Disconnect all plumbing lines necessary to allow access to the check valves 5 6 2 Using suitable wrench unscrew port fitting from end cap Inspect O ring on fittin...

Page 11: ...gas barrel bore with a strong light It must be mirror smooth However if only slightly scratched it may be salvaged with a light hone NOTE DO NOT apply a lubricant of any kind to bearings seals O rings...

Page 12: ...ing at the piston seal and or the inlet check and or the outlet check 6 5 2 Symptom Observing Gauge Pointer Repair A Fast fall back from maximum A Outlet Check B Sluggish rise during pressure stroke B...

Page 13: ...sing it to stick open Then the pilot vent valve cannot dump enough pilot pressure so it remains held open by the drive piston Replace spring Defective o ring on pilot charge valve cycling valve end ca...

Page 14: ...8 OM 12J 14 1 8AG 8AGD 5 14 30 60 8AGT 5 14 5 30 14 60 30 60 8AGD 8AGT 8AGD 5 8AGT 5 14 2 2 1 2 2 NPT 2 2 1 5 2 3 1 54312...

Page 15: ...8 OM 12J 15 2 3 T 2 3 1 4 25 1 8AGT 8AGD 40 1 10 1 2 3 2 3 1 5 1 10 1 80 C...

Page 16: ...8 OM 12J 16 1 8AGD 8AGT 2 8AGT 25mm 145 C...

Page 17: ...8 OM 12J 17 3 3 1 3 2 3 3 19 05 mm 25 4 mm 3 4B 20A 3 4B 20A 1 4B 8A NPT 1 4B 8A NPT 1 8B NPT 1 bar 3 3 1 1 8 m 19 5 mm 3 3 2 1 8B 8A NPT 3 4 3 4B 20A...

Page 18: ...8 OM 12J 18 3 5 1 2 2 3 4 4 1 1 bar 5 5 1 CV No 242 CV O...

Page 19: ...8 OM 12J 19 IPA 50 50 5 2 5 2 1 5 2 2 3 O O 4 5 2 3 5 3 4 5...

Page 20: ...8 OM 12J 20 5 2 3 1 O 2 2 1 6 3 43N m 5 2 4 5 2 1 5 2 3 5 2 5 O 5 2 6 5 2 7 50866 O 5 2 8 O O O O 5 2 9 5 2 3 1 5 3 5 4 5 3 1 6 7...

Page 21: ...8 OM 12J 21 5 3 2 5 3 3 O 5 3 4 O 50866 5 3 5 5 3 6 O O 5 3 7 50866 5 4 5 4 1 17568 2 5 4 2 0 11 bar 1 8B 5 4 3 8...

Page 22: ...8 OM 12J 22 O 5 3 6 5 5 5 5 1 5 5 2 5 5 3 5 5 4 E O 5 5 5 O O O O O O 5 5 6 5 5 7 50866 O 5 5 8 28 4 34 3N m 5 6 8AGD 8ADT 5 6 1 9 O...

Page 23: ...8 OM 12J 23 5 6 2 O 5 6 3 O 5 6 4 5 1 5 6 5 5 6 6 5 7 21703 2 5 7 1 5 7 2 5 5 3 5 5 4 5 7 3 O 5 7 4 O O 5 7 5 O 5 7 6 5 1 5 7 7...

Page 24: ...8 OM 12J 24 O 5 7 8 5 7 9 6 6 1 6 2 70 bar 6 3...

Page 25: ...8 OM 12J 25 6 4 6 5 6 5 1 bar 8AGD 5 15 5 8AGD 14 15 5 8AGD 30 17 2 8AGD 60 21 7 6 5 2 A A B B B 5 5 34 5 bar...

Page 26: ...8 OM 12J 26 7 7 1 7 2 7 3 1 4 bar 5 2 O O O 9 5 5 5...

Page 27: ...8 AG OM 12J 27 1 8AG 8AGD 5 14 30 60 8AGT 5 14 5 30 14 30 14 60 30 60 1 8AGD 2 8AGT 8AGD 5 5 8AGT 5 14 1 5 2 14 2 2 1 4 2 2 2 2 4 2 2 NPT 1 1 2 2 2 1 Haskel 28442 5 2 3 1 54312...

Page 28: ...8 AG OM 12J 28 2 3 T 1 2 2 3 1 psi 0 4 25 1 0 2 8AGT 2 8AGD Haskel 40 1 10 1 2 3 2 3 1 5 1 10 1 150 F...

Page 29: ...8 AG OM 12J 29 8AGD 8AGT 8AGD 1 2 1 1 8AGD 8AGT 2 2 1 2 2 2 8AGT...

Page 30: ...8 AG OM 12J 30 1 in 300 F 3 3 1 3 2 3 3 3 4 1 3 4 3 4 NPT 1 4 NPT 1 4 NPT 1 8 NPT 15 psi 3 3 1 6 ft 3 4 3 3 2 1 8 NPT 3 4 3 4...

Page 31: ...8 AG OM 12J 31 3 5 1 2 2 3 4 4 1 15 psi 5 5 1 Loctite CV Blue 242 Loctite CV O...

Page 32: ...8 AG OM 12J 32 Stoddard 50 50 5 2 5 2 1 4 5 2 2 3 O O 4 3 4 Pilot shaft end seal...

Page 33: ...8 AG OM 12J 33 5 2 3 2 5 5 2 3 1 O 2 2 1 6 4 30 in lb 5 2 4 5 2 1 5 2 3 7 5 2 5 4 O 5 2 6 5 2 7 O Haskel 28442 5 2 8 O 2 O O 4 O 5 2 9 5 2 3 1 5 6 7...

Page 34: ...8 AG OM 12J 34 5 3 5 4 5 3 1 5 3 2 5 3 3 2 O 5 3 4 O Haskel 28442 5 3 5 5 3 6 O O 2 8 Tru Arc 5 3 7 Haskel 28442 5 4 5 4 1 17568 2 5 4 2 1 8 NPT 0 160 psi 5 4 3 O 8...

Page 35: ...8 AG OM 12J 35 5 3 6 5 5 5 5 1 5 5 2 5 5 3 4 8 5 5 4 1 E 1 1 O 5 5 5 O O O O 9 5 5 6 5 5 7 O Haskel 28442 5 5 8 250 300 in lb 5 6 6 8AGD 2 8AGT 5 6 1 5 6 2 O 9 O...

Page 36: ...8 AG OM 12J 36 5 6 3 O 5 6 4 5 1 5 6 5 5 6 6 5 7 21703 2 5 7 1 5 7 2 4 5 5 3 5 5 4 5 7 3 O 5 7 4 O O 5 7 5 O 5 7 6 5 1 5 7 7 O 5 7 8 5 7 9 6 6 1...

Page 37: ...OM 12J 37 6 2 1000 psig 6 3 6 4 Install gauge Cycle drive at moderate speed until pressure stops rising Record maximum pressure 6 5 6 5 1 psig 8AGD 5 225 8AGD 14 225 8AGD 30 250 8AGD 60 315 6 5 2 A A...

Page 38: ...8 AG OM 12J 38 B 80 500 psi 7 7 1 7 2 7 3 20 psi 5 2 O O 9 5 5 6 O 6...

Page 39: ...8 AG OM 12J 39 1 8 AG 8AGD 5 14 30 60 8AGT 5 14 5 30 14 30 14 60 30 60 8AGD 8AGT 8AGD5 5 8AGT5 14 5 14 2 2 1 4 2 2 4 NPT T T 2 2 1 Haskel p n 28442 5 2 3 1 54312 2 3...

Page 40: ...8 AG OM 12J 40 I 2 2 3 1 psi 0 25 1 4 0 2 8AGT 2 8AGD Haskel 40 1 10 1 2 3 2 3 1 5 1 10 1 150 F 8AGD 8AGT 8AGD 1...

Page 41: ...8 AG OM 12J 41 1 8AGD 8AGT 2 2 8AGT 1 300 F...

Page 42: ...8 AG OM 12J 42 3 3 1 3 2 3 3 3 4 1 3 4 3 4 npt 1 4 npt 1 4 npt 1 8 npt 15 psi 3 3 1 6 3 4 3 3 2 T 1 8 npt 3 4 3 4 3 5 1 2 2 3 4...

Page 43: ...8 AG OM 12J 43 4 1 15 PSI 5 5 1 Loctite CV 242 Loctite CV O 50 50 5 2 5 2 1...

Page 44: ...8 AG OM 12J 44 5 2 2 3 O O 4 5 2 3 5 5 2 3 1 O 2 2 1 6 30 5 2 4 5 2 1 5 2 3 3 4 5 6...

Page 45: ...8 AG OM 12J 45 7 5 2 5 4 O 5 2 6 5 2 7 Haskel 28442 O 5 2 8 O O O 4 O 5 2 9 5 2 3 1 5 3 5 4 T 5 3 1 T 5 3 3 T T O 5 3 4 O 28442 5 3 5 5 3 6 T O O T 7 8...

Page 46: ...8 AG OM 12J 46 Tru Arc 8 5 3 7 Haskel 28442 5 4 5 4 1 p n 17568 2 5 4 2 1 8 NPT 0 160 PSI 5 4 3 T O T 5 3 6 5 5 5 5 1 5 5 2 T 5 5 3 4 8 5 5 4 E O 9 O...

Page 47: ...8 AG OM 12J 47 5 5 5 O O O O 9 5 5 6 5 5 7 Haskel 28442 O 5 5 8 250 300 5 6 6 8AGD 8AGT 5 6 1 5 6 2 O 5 6 3 O 5 6 4 5 1 5 6 5 5 6 6 5 7 21703 2 5 7 1 5 7 2 5 5 3 5 5 4...

Page 48: ...8 AG OM 12J 48 5 7 3 O 5 7 4 O O 5 7 5 O 5 7 6 5 1 5 7 7 O 5 7 8 5 7 9 6 6 1 6 2 1000 PSlG 6 3...

Page 49: ...8 AG OM 12J 49 6 4 6 5 6 5 1 PSlG 8AGD 5 225 8AGD 14 225 8AGD 30 250 8AGD 60 315 6 5 2 A A B B B 80 500 PSI...

Page 50: ...8 AG OM 12J 50 7 7 1 7 2 7 3 20 psi 5 2 O O 9 5 5 5 O 6...

Page 51: ...ance for lifting e Safety labels on the machines and meanings are as follows General Danger Read Operator s Manual f In an emergency turn off the air supply g Warning If the pump s were not approved t...

Page 52: ...ranty claim and to expedite the return of replacement to the owner If unit has been disassembled or reassembled in a facility other than Haskel warranty is void if it has been improperly reassembled o...

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