Level 1 Comp PM - One Day. Includes Removing and Checking/Replacing all Compressor Valves, Checking Cylinder to Piston (Rider-Band) Clearance. Checking Packing Area Leaks, Check Crosshead Clearances, Replace Oil Filters.
Check the Lubricator System Operation and Rate.
*Recommended Quarterly or Semi-Annual Depending on Operating Conditions.
Level 2 Comp PM - Two Days. Everything in Level 1 Plus Removal of Both Piston and Rod Assemblies, In-depth Inspection of Pistons, Rings, Riders, Cylinders, Rods, Gas Packing Cases, Oil Wiper Packing. Rod Bearing Checks. Oil Pump Drive Chain Check and Adjustment.
* Recommended Annually
Level 3 Comp PM - Three Days. Everything in Level 1 and 2 PM's Plus Inspection of all Conn-Rod Bearings and Main Bearings, Check Coupling and Shaft Alignment.
(4-Days if Alignment or Coupling Needs Repair or Adjustment)
* Recommended at 20,000+ Hours.
* PM Based on 8-10 Hour Days and All Parts on Site. Custom PM Programs Available for High-Speed Separable Compressors and Low-Speed Integral Compressors Up to 6500 HP.
Level 1 Engine PM - One Day. Complete Visual Inspection. Replace Spark Plugs, Oil, and Air Filters. Perform Valve Adjustment and Compression Test, Lube all Grease Fittings, Adjust all Belts, Fill Starter Lubricator, Inspect Ignition Drive, Check and Adjust Ignition Timing.
*Recommended Quarterly or Semi-Annual Depending on Operating Conditions.
Level 2 Engine PM - Two Days. Includes Everything in the Level 1 Plus Complete Carburetor Inspection. Perform Oil Change, Remove Crankcase Doors/Covers, Inspect and Clean Crankcase, Clean Oil Pump Suction Screen as Needed.
*Recommended Annually
Level 3 Engine PM - Three Days. Includes Everything in Level 1 and Level 2 PM's Plus Borescope Inspection of all Cylinders, Dial Indicate Bearing Clearances, Check Crankshaft End Thrust. Perform Web Deflection as Required. Replace all Drive Belts as Needed.
*Recommended Every Other Year.
"Top End" Overhaul - Remove all Cylinder Heads, Pistons, and Piston Rods and Cylinder sleeves Liners. Replace all - Cylinder Heads, Pistons, Wrist Pins, Rings, and Cylinder Sleeves. Inspect all Connecting Rods, Mic and Crank Journals, Replace Rod Bearings. Reassemble Engine Using New Gaskets and Seal Rings. Also Includes all Tasks Listed in
Level 2 Engine PM. Start and Test.
*Recommended at 20,000+Hours. Based on Valve Recession/Borescope Reports.
"Complete" Overhaul - All Of the Above Plus Complete Crankshaft Inspection of all Bearing
Journals. Replace all Main Bearings. Complete Camshaft and Lifter Inspection. Replace Camshaft Bearings. Replace Drive Gear Bearings. R&R Oil Pump. R&R Water Pump. R&R Vibration Dampner as Needed. Replace all Seals and Gaskets.
*Recommended at 40,000+Hours.Based on Valve
Recession/Borescope Reports and Bearing Clearance Data/ Maintenance History.
* PM Based on 8-10 Hour Days and All Parts on Site. Custom PM/Overhaul Schedules Available.
This video shows we are performing an Ariel JGC-6 Overhaul, Grout, and Alignment. Note how easily the Crank is turned by hand. These long Cranks are essentially like “Spaghetti” and not an easy task to balance or align.
NORTHWEST WORKS ON MANY DIFFERENT TYPES OF COMPRESSORS. OUR KNOWLEDGE OF THE COMPRESSOR CORE ELEMENTS STANDS OUT IN OUR SERVICE AS A PREMIER INDUSTRIAL CONTRACTOR.
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