1333 West Loop North, Suite 800 GE Houston, Texas 77027 U.S.A. OIL & GAS compressor ____ Subject: Upgraded Frame Group: Frames Number: 05-013 Rev 2 Sub Group: All Date: 29 Feb 07 Series: F, FS______

GE Oil and Gas has upgraded the running gear of the “F” frame. These upgrades include changes to the crosshead, crosshead pin, and connecting rod. Frames containing these upgraded components began shipping in early 2005, and are identified with the designation “FS” frame. All new frames being shipped from GE Oil & Gas contain these upgraded components. These upgrades are a further expansion of the upgrades available for the Chicago Pneumatic and Energy Industries “FE565DH, FE665DH, and FE765DH” frames.

Building on technology from its proven Nuovo Pignone API618 process compressors, GE Oil & Gas has upgraded the running gear to provide greater robustness. The upgraded frames are now identified as the GE Oil & Gas, DS, ES and FS Tradition Series of high-speed compressors.

(1) Upgrade Summary–F to FS Connected Rod and Crosshead

(2) (6)

(3) (7)

(4) (8)

(5)

Connecting Rod: Crosshead:

(5) Single piece forged steel crankshaft with (1) Cap Alignment pin has been added, also, integral counterweights. the pin is offset to ensure proper cap installation. (6) Adjustable aluminum shoes have been replaced with babbitted integral shoes. (2) Bolts are 12 point capscrew type with hardened washers. (7) FS crosshead is now a single piece ductile iron casting. (3) Clamping force of the connecting rod cap has been increased with the upgraded (8) FS crosshead pin is increased from components and an upgraded attachment 3.875” inches to 5.25” in diameter, increasing procedure. pin surface area over 183%.

(4) Tri-Metal bearings, babbit coated bronze (9) The “F” piston rod locking pin device has bearings with steel backs are now standard. been discontinued.

The FS frame upgrades also increase the rod load rating of the “F” series frame from 60,000 compression and 50,000 lbs tension, to the “FS” rating of 60,000 lbs, compression and 57,000 lbs, tension.

1 OF 2 Compressor News\CN 05-013 1333 West Loop North, Suite 800 GE Houston, Texas 77027 U.S.A. OIL & GAS compressor

Summary of FS Frame Ratings

Frame Series FS502 FS602 FS702 FS504 FS604 FS704 FS506 FS606 FS706 Number of Throw 2 22444666 Stroke - Inches 5 67567567 RPM max 1500 1200 1000 1500 1200 1000 1500 1200 1000 Max BHP 2400 2400 2400 4800 4800 4800 7200 7200 7200 Max Rod Loads 000's lb Compression 60 60 60 60 60 60 60 60 60 Tension 57 57 57 57 57 57 57 57 57 Total 117 117 117 117 117 117 117 117 117 Rod Dia - Inches 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Crankpin Bearing Dia-inches 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 Crankpin Bearing Width - inches 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 Main Bearing Dia - inches 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 Main Bearing Width - Inches 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 3.25 Connecting Rod Bushing Dia- Inches 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25 Connecting Rod Bushing Length - Inches 4 44444444 Conn Rod C/L-C/L inches 18 18 18 18 18 18 18 18 18

Items of Importance: • Proper throw balancing of the compressor frame is critical to safe and smooth operation. The FS running gear has a different weight (before balance adjustment) than the “F” running gear. To prevent vibration, this weight must be accounted for when balancing the frame. The nominal crosshead weight of the FS frame is 128.01 lbs. This represents an increase of 12.11 lbs over the F crosshead weight of 115.9 lbs. F and FS frame balance weights are interchangeable.. • Proper running gear clearances are critical to safe and smooth compressor operations. Due to the change in running gear dimensions and materials, the recommended FS frame clearance specifications are not the same as those applicable to the F frame, consult the FS operations manual. • Proper connecting rod cap bolt torque is critical to safe compressor operation. The four connecting rod cap bolts have a recommended torque of 165 ft/lbs plus an additional 90 degree rotation. • New special tools – A connecting rod cap removal tool part number: 427-6200 and connecting rod cap tightening 90 degree gauge 427-6292.

Details and instructions on the proper procedures and settings for the above points can be found in the FS frame operations and maintenance manual, or contact the Technical Assistance hotline – 832-978-9780.

Attached is a parts listing for the FS connecting rod and crosshead, these items can be purchased in a kit form as part number: Kit 907. This kit includes the parts necessary for one throw of running gear upgrades, including the crankpin bearings.

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