connecting rod replacement

REV DESCRIPTION REV EC DATE REV EC DATE

Completely re-written. Edited for format, style, and clarity.

4 015739 3-21-123 010904 5-14-032 010579 3-17-031 010692 7-2-020 010101 4-17-02

4

PAGE 1 OF 11

CUSTOMER TECHNICAL BULLETIN

NOTE: For a complete listing of all available Ariel Customer Technical Bulletins, visitwww.arielcorp.com and click Support/Customer Technical Bulletins.

CTB-105REV 4

Main and Connecting Rod Bearing ReplacementMain and connecting rod bearings for reciprocating compressors consist of two half bearing shells that join together to form the bearing. They are tri-metal (steel, bronze, and babbitt with a tin flash coat) and precision split. Over time, bearings wear and require replacement. Typically, it is a good idea to replace all main and/or connecting rod bearings at the same time.NOTE: Where bearings are identified with an ink pictograph of a connecting rod or a com-pressor frame on the bearing, connecting rod bearings and main bearings are not inter-changeable. DO NOT put connecting rod bearings in main bearing locations or vice versa. Also, see Customer Technical Bulletins 192 and 208 for important information regarding JGE:K:T:C:D connecting rods and connecting rod bearings.NOTE: Main and connecting rod bearing wear and replacement intervals are heavily depen-dent on many factors including speed, load, oil temperature, oil cleanliness, and oil quality. Depending on the severity of service, the bearing maintenance interval may be longer or shorter than what is stipulated in the recommended maintenance intervals.

TABLE 1 New Bearing Assembly Tolerances, in. (mm)

Model Crankshaft Thrust Clearance

Main BearingJack Clearance

Connecting Rod Bearing Jack

Clearance

Connecting Rod Thrust Clearance

JG:A:M:N:P:Q 0.0035 to 0.0110 (0.089 to 0.279)

0.0005 to 0.0035 (0.013 to 0.089)

0.0015 to 0.0040 (0.038 to 0.102)

0.0070 to 0.0160 (0.178 to 0.406)

JGI 0.0090 to 0.0250 (0.229 to 0.635) N/A N/A 0.0090 to 0.0150

(0.229 to 0.381)

JGJ:R:W 0.0085 to 0.0190 (0.216 to 0.483)

0.0010 to 0.0040 (0.025 to 0.102)

0.0020 to 0.0050 (0.051 to 0.127)

0.0100 to 0.0210 (0.254 to 0.533)

JGH:E:K:T/2 /4 0.0085 to 0.0200 (0.216 to 0.508) 0.0015 to 0.0050

(0.038 to 0.127)0.0035 to 0.0070 (.089 to 0.178)

0.0070 to 0.0180(0.178 to 0.457)

JGE:K:T/6 0.0140 to 0.0330 (0.356 to 0.838)

JGC:D 0.0135 to 0.0300 (0.343 to 0.762)

0.0040 to 0.0070 (0.102 to 0.178)

0.0040 to 0.0090 (0.102 to 0.229)

0.0150 to 0.0330 (0.381 to 0.838)

JGZ:U, KBZ:U 0.0150 to 0.0300(0.38 to 0.76)

0.0055 to 0.009(0.14 to 0.23)

0.0055 to 0.009(0.14 to 0.23)

0.0115 to 0.0275 (0.29 to 0.70)

JGB:V 0.0150 to 0.0370 (0.381 to 0.940)

0.0040 to 0.0085 (0.102 to 0.216)

0.007 to 0.012(0.178 to 0.305)

0.0150 to 0.0330 (0.381 to 0.838)

KBB:V 0.0150 to 0.0370 (0.381 to 0.940)

0.0040 to 0.0085 (0.102 to 0.216)

0.0070 to 0.0120 (0.178 to 0.305)

0.0150 to 0.0330 (0.381 to 0.838)

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Connecting Rod Bearing RemovalNOTE: See Customer Technical Bulletins 192 and 208 for important information regarding JGE:K:T:C:D connecting rods and connecting rod bearings.FOR JGH:E:K:T:C:D:Z:U:B:V AND KBZ:U:B:V COMPRESSORS:1. Remove frame top cover, all crosshead guide covers and applicable distance piece covers to

access the wiper packing gland bolts.2. Remove the bolts attaching the wiper packing housing to the crosshead guide. Slide the entire

wiper packing assembly towards the cylinder.3. Remove all head end heads.4. Remove the middle frame spacer bar of the three over each pair of throws. If replacing main and

rod bearings, remove all spacer bars. If spacer bar bolts are difficult to loosen, use a 12-point slugging wrench and hammer. Spacer bars fit snugly, but should slide out by hand without ham-mering. They should not fall out. If fit is too loose or tight, contact your packager or Ariel before proceeding.

5. Turn the crankshaft until the throw is at its highest point. Loosen all four bolts, but keep them snug against the rod cap.

6. Turn the crankshaft until the throw is at outer dead center.

7. Loosen all the conn rod bolts approximately 3/4 in. (19 mm).

8. Use the connecting rod cap removal tool to jack against the bolt heads and pull the rod cap free from the dowels (see Fig. 2). If the cap does not separate easily from the rod, STOP; the rod cap may be in a bind, which can break the dowel pins. If binding occurs, re-tighten the conn rod bolts and repeat the procedure.NOTE: Do not pry or chisel to separate cap from rod; it damages the connecting rod and can break the alignment dowel pins.

9. After the cap separates from the rod, remove the cap removal tool and back out the conn rod bolts completely, but do not remove them. Do not remove the bolts and cap until step 11.

10. Support the cap and rod by hand or crane while another person pries the crank end of the crosshead toward the cylinder until it bottoms out. When the connecting rod is clear of the crankshaft, rest it on the cross-head guide slide. Do not allow the rod or cap to drop, as damage can occur.

CAUTION: To prevent personal injury, verify neither driver nor compressor cylinder gas pressure can turn the crankshaft during maintenance. Follow appropriate lock out proce-dures. Before any maintenance or component removal, relieve all pressure from com-pressor cylinders. See packager information to completely vent the system or call the packager for assistance. After maintenance, purge the entire system with gas prior to operation to avoid a potentially explosive air/gas mixture.

FIGURE 1 Rod and Rod Cap Separation

1 2

3

4

1. Conn Rod Bolts2. Top Face

3. Rod Cap4. Rod

FIGURE 2 Connecting Rod Cap Removal Tool

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11. Rotate the rod cap around the crankshaft until the bolts are vertical. Remove bolts, then remove cap. Always remove the bolts before the cap to prevent damage to the crankshaft.

12. Lift the cap while holding the bearing in the cap because oil causes the bearing to stick to the crankshaft pin.

13. Rotate the crank to inner dead center and remove the connecting rod bearing.14. After removing bearings, clean any coking or debris from both the rod and rod cap surfaces and

check for any raised edges on machined surfaces. All surfaces should be as clean and dry as possible.

FOR JG:A:M:N:P:Q:R:J:W COMPRESSORS:1. Remove frame top cover and all crosshead guide covers.2. On JG:A:R:J:W frames, remove the middle frame spacer bar of the three over each pair of

throws. If replacing main and rod bearings, remove all spacer bars. Spacer bars fit snugly, but should slide out by hand without hammering. They should not fall out. If fit is too loose or tight, contact your packager or Ariel before proceeding.

3. Rotate the crankshaft to approximately 45º (see Fig. 3).4. Loosen all the conn rod bolts approximately 1/8 in. (3.2 mm).5. Pry the crosshead toward the cylinder until it bottoms out. Work

the rod cap away from the rod as evenly as possible. Separating the two parts unevenly may break the rod cap dowels or cause them to bind in the rod dowel holes. If the two parts of the con rod do not separate easily by hand, loosen all bolts an additional 1/8 in. (3.2 mm) and pry the crosshead again.NOTE: Do not pry or chisel to separate cap from rod; it damages the connecting rod and can break the alignment dowel pins.

6. Remove all bolts from the cap first, and then remove the cap. Lift the cap while holding the bear-ing in the cap because oil causes the bearing to stick to the crankshaft pin. Do not remove the cap with bolts in place.

7. Support the rod by hand while another person rotates the crank away from the rod. When the connecting rod is clear of the crankshaft, rest it on the crosshead guide slide.

8. Rotate the crank to inner dead center and remove the connecting rod bearing.9. After removing bearings, clean any coking or debris from both the rod and rod cap surfaces and

check for any raised edges on machined surfaces. All surfaces should be as clean and dry as possible.

Connecting Rod Bearing Installation1. Check new bearing shells for handling damage, scratches, burrs, and loose material at the tabs.

DO NOT RUB BEARING SURFACE WITH FINGERNAIL. New bearing shells and crankshaft crank pin bearing surfaces must be absolutely clean. Fit the tab of a new, dry half bearing shell into the rod notch.NOTE: Where bearings are identified with an ink pictograph, connecting rod bearings and main bearings are not interchangeable. DO NOT put main bearings in a connecting rod. Do not mix part numbers on an individual main or connecting rod. Both bearing half shells must have the same part number.

2. Thoroughly inspect the crank pin for dings and scratches. If needed, use an Arkansas stone to dress dings and scratches (Norton Hard Translucent Arkansas Stone, 3” x 1/2” x 1/2”, product

FIGURE 3 Rotating the Crankshaft

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number HF-43). Lightly slide the stone around the circumference of the crank pin surface to remove any high spots; do not slide it back and forth over the length of the crank pin. After dress-ing, ensure the crank pin is clean and dry. If the crank is scored around the circumference, use 600 grit emery cloth to remove high spots.

3. Apply clean, new lube oil liberally to the crank pin.

4. Fit the tab of the other bearing shell into the rod cap notch.

5. Attach the rod cap to the rod:FOR JGH:E:K:T:C:D:Z:U:B:V AND KBZ:U:B:V COMPRESSORS:a. Rotate crankshaft to approximately

outer dead center.b. Carefully lower the connecting rod

cap (WITHOUT BOLTS!) onto the crank pin. Verify rod bolts are undamaged and free of dirt. Lubricate them per ER-63, then place all four bolts into the rod cap.NOTE: Ariel stamps throw num-bers on all rod caps and rods. Install a rod cap in the correct throw location with the stamped numbers facing up.

c. Rotate cap so the bolts align with the connecting rod bolt holes. Support the rod cap while another person carefully pries the connecting rod towards the crankshaft until it bottoms out. Align the rod cap dowels with the rod dowel holes and push the rod cap onto the rod with even pressure. The rod cap fits onto the rod only one way. Do not force the rod cap onto the rod; the dowels should slide into the rod holes without difficulty. After ensuring the rod cap seats prop-erly on the rod, snug all four bolts and pre-torque according to ER-63.

d. Rotate the crankshaft until the throw is at its highest point and tighten all conn rod bolts to the torque listed in ER-63.

FIGURE 4 Connecting Rod Bearing Installation

Apply lube oil liberally to this surface.

6 6

5. Bearing Shell6. Bearing Shell Tab7. Rod Cap Dowels8. Rod Cap Notch9. Rod Cap

873

1

4 9

2

1. Rod2. Rod Bushing3. Rod Dowel

Holes4. Rod Notch

5 5

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FOR JG:A:M:N:P:Q:R:J:W COMPRESSORS:a. Support the connecting rod by hand while another person

rotates the crank towards the rod. Stop rotating the crank at about a 45º angle (see Fig. 5)

b. Keep supporting the connecting rod by hand while the second person pries the crosshead towards the crank until the rod bottoms out on the crankshaft.

c. Carefully lower the connecting rod cap (WITHOUT BOLTS!) onto the crank pin. Verify rod bolts are undamaged and free of dirt. Lubricate them per ER-63, then place all four bolts into the rod cap.NOTE: Ariel stamps throw numbers on all rod caps and rods. Install a rod cap in the correct throw location with the stamped numbers facing up.

d. After ensuring the rod cap seats properly on the rod, tighten all conn rod bolts to the torque listed in ER-63.

6. Repeat steps 1-5 for all remaining connecting rods.7. Measure each connecting rod bearing jack and thrust clearance

as detailed in this document. If clearance readings are not within Table 1 tolerances, contact your packager or Ariel before proceeding.

NOTE: If replacing main bearings, continue to "Main Bearing Removal". If not replacing main bearings, continue to Step 8.8. Install spacer bars so the match mark is up and next to the spacer bar boss with the same mark.

Tighten all spacer-bar cap screws to the torque listed in the technical manual or ER-63.9. Account for all tools, equipment, supplies, and parts to ensure none are left inside the crankcase. 10. Examine top cover and side cover gaskets. If there is doubt about their condition, replace them.

Apply Never-seez Regular Grade to both sides of the gasket to ease future removal. Replace top cover and crosshead guide covers. Tighten all cap screws hand wrench tight.

11. Reverse lockout procedures.12. After replacing bearings, thoroughly pre-lube compressor to ensure bearing lubrication and to

help remove foreign materials from the lube system.13. Run the compressor according to the form on page 10, and shutdown after each run. Remove

the frame top cover. Measure main and connecting rod bearing cap temperatures with a hand held thermocouple probe or infrared thermometer and record them on a copy of the form on page 10. Complete the form and email or fax it to Ariel Field Service.

FIGURE 5 Attaching Rod to Crankshaft

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Main Bearing Removal1. Remove top cover and

spacer bars. If spacer bar bolts are difficult to loosen, use a 12-point slugging wrench and hammer. Spacer bars fit snugly, but should slide out by hand without hammering. They should not fall out. If fit is too loose or tight contact your packager or Ariel before proceeding.

2. Remove main (journal) bearing cap screws. Pull caps straight up to prevent damage to the dowel fit. If cap is tight, use a bearing cap puller (see Fig. 6). Remove shells from main bearing caps.

3. Remove main journal bear-ing shells from under the crankshaft one at a time. If needed, attach clean nylon straps around the crank-shaft and lift it 0.003 - 0.005 inch to lessen weight on the bearings and allow easier removal. To remove, rotate shell under the crankshaft tab side out first, by pushing or tapping with a non-metallic tool on the opposite split face side. Ariel optional tool (B-3340) can be used on JGH:E:K:T:C:D:Z:U:B:V and KBZ:U:B:V models to push shell completely out. Do not damage crankshaft bearing surfaces. Replace with new bear-ing shell, before rotating out the next main bearing shell.

4. Clean any coking or debris from both the saddle and main bearing cap surfaces and check for raised edges on machined surfaces. Verify all surfaces are as clean and dry as possible. Verify no bolting is damaged.

Main Bearing Installation1. Check new bearing shells for damage, scratches, burrs, and loose material at the tab. DO NOT

RUB BEARING SURFACE WITH FINGERNAIL. Keep the backs of shells dry and clean; instal-lation requires perfectly clean bearing shells. Install bearing shells in caps, and frame journals, properly located in the tab notch, (rotate in the un-tabbed end first).JG:A:M:N:P:Q units use a thrust bearing, where the thrust plate is integral to one bearing shell, and the other shell has no thrust plate. Install the bearing shell with the integral thrust plate into the #1 main bearing cap.NOTE: Where bearings are identified with an ink pictograph, main and connecting rod bearings are not interchangeable. Do not put connecting rod bearings in main bearing locations. Do not mix part numbers on an individual main or connecting rod. Both bearing half shells must have the same part number.

MODELTHREADED ROD RECTANGULAR STEEL

BAR STOCKNom. SizeIn. -- TPI

Length In. (cm)

Clearance Hole In. (mm)

Length In. (cm)

JG:JGA:M:N:P:Q 1/2 -- 13 10 (25) 5/8 (15) 16 (40)JGR:J:W

5/8 -- 11

7 (18)

11/16 (18)

16 (40)JGH:E:K:T 11(28) 21 (53)

JGC:D 12 (30) 28 (70)JGZ:U:B:V KBZ:U:B:V 17 (45) 35 (90)

Turn nut to pull bear-ing cap straight up.

Drill hole

RectangularSteel Bar

Puller Hole

Lock Nut

Threaded Rod

Crankshaft

FIGURE 6 Main Bearing Cap

Puller

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2. Apply a liberal amount of clean, new lube oil to crankshaft bearing surfaces.3. Main bearing caps have position match-marks corresponding with frame spacer bars and spacer

bar bosses. Install main bearing caps with new bearing shells in their correct locations. Do not manually force the cap to seat. It is a machined fit, not a press fit, and the cap should not rock in the jaw fit when it seats. Do not use bolting to force the cap to seat. Snug the cap screws. Start-ing at the thrust end, use the torque procedure in the technical manual to tighten the main bear-ing cap bolts to the torque listed in the manual or ER-63.

4. Verify proper alignment of main bearing cap dowels with the holes in the crankcase base. A set screw on top of each dowel prevents it from backing out.

5. Check crankshaft journal bearing jack (at each bearing) and crankshaft thrust clearances to val-ues in Table 1. Record readings on a copy of the form on page 10. If readings are out of tolerance after new bearing installation, contact your packager or Ariel before proceeding.

6. Install spacer bars so the match mark is up and next to the spacer bar boss with the same mark. Tighten all spacer-bar cap screws to the torque listed in the technical manual or ER-63.

7. Account for all tools, equipment, supplies, and parts to ensure none are left inside the crankcase. Reinstall gaskets and top cover(s). Tighten cover bolts hand wrench tight.

8. Reverse lockout procedures.9. After replacing bearings, thoroughly pre-lube compressor to ensure bearing lubrication and to

help remove foreign materials from the lube system.10. Run the compressor according to the form on page 10, and shutdown after each run. Remove

the frame top cover. Measure main and connecting rod bearing cap temperatures with a hand held thermocouple probe or infrared thermometer and record them on a copy of the form on page 10. Complete the form and email or fax it to Ariel Field Service.

Bearing Jack and Thrust Clearance MeasurementTable 1 values are new assembly tolerances. Measure main and connecting rod bearing clearances in accordance with Ariel Recommended Maintenance Intervals. Compare measurements to initial as-built or previous measurement to determine bearing wear. Do not remove connecting rod cap or main journal cap to check bearing wear. If a cap is removed, replace the bearing. DO NOT REUSE BEARING SHELLS. Check clearances after new bearing installation. Use calibrated dial indicators with 0.0005 inch (0.005 mm) increments and magnetic bases to check clearances.

Connecting Rod Bearing Vertical Jack Clearance Measurement1. Turn the crankshaft pin of the desired throw to its highest position. For JGH:E:K:T:C:D:Z:U:B:V

and KBZ:U:B:V models, thread an eye bolt into the connecting rod (see Fig. 7).2. Attach the magnetic base of a needle dial indicator to the crankshaft web adjacent to the con-

necting rod. Place the point of the dial indicator against the top of the connecting rod near the center of the cap seam.

3. Zero the dial indicator. Insert a pry bar into the eye bolt and pry against the frame to force the connecting rod up until the dial indicator needle stops moving. For JG:A:M:N:P:Q:R:J:W models, pry against the top conn rod bolts. While maintaining upward pressure, note the reading.

4. Release upward pressure and push downward on the rod until the indicator reads zero again. If a zero reading cannot be obtained, zero the indicator again and repeat steps 3 and 4. Repeat the measurement process until the measurement returns to zero twice in a row to verify accuracy.

5. Repeat measurement process for every rod. If a reading is outside Table 1 tolerances, contact your packager or Ariel.NOTE: Remove eye bolts, magnetic bases, dial indicators, and pry bars after measurement.

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Connecting Rod Thrust (Side) Clearance Measurement1. Turn the crankshaft pin of the desired throw to its highest position.2. Attach the magnetic base of a button dial indicator to the side of the crankshaft web adjacent to

the connecting rod. Place the button of the dial indicator against the thrust surface of the con-necting rod (see Fig. 8).

3. Use a pry bar to pry against the crankshaft web and thrust the connecting rod tight toward the dial indicator (do not pry on rod cap). Release pressure and zero the dial indicator.

4. Thrust the connecting rod tight in the opposite direction until the dial indicator needle stops mov-ing. Release pressure and note reading. Repeat steps 3 and 4 to verify measurement accuracy.

5. Repeat the measurement process for every rod. If a reading is outside Table 1 tolerances, con-tact your packager or Ariel.NOTE: Remove magnetic bases, dial indicators, and pry bars after measurement.

Main Bearing Vertical Jack Clearance Measurement1. Turn the crankshaft until the web adjacent to the desired main bearing is vertical (see Fig. 9).2. Loop a lifting strap around the crankshaft web adjacent to the main bearing and attach the strap

to a crane.3. Attach the magnetic base of a needle dial indicator to the top of the main bearing cap. Place the

point of the dial indicator against the top of the adjacent web and zero it.4. GENTLY lift crankshaft with a crane. The dial indicator needle moves steadily until the crane

overcomes crankshaft oil stiction, at which point the needle jumps a little. Stop lifting immediately at this point, and note the reading.

Dial indicator magnetic base placement on top of crankshaft web, and pry bar inserted into eye bolt.

Use pry bar to check jack clearance.

FIGURE 7 Typical Connecting Rod Bearing Vertical Jack Clearance Measurement

Dial indicator magnetic base placement.

Button dial indicator placement. Rod thrust tight toward and away from dial indicator.

FIGURE 8 Typical Connecting Rod Thrust (Side) Clearance Measurement

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NOTE: If the crane does not have a fine adjustment, attach a chain hoist to the crane lifting hook to prevent excessive force on the crankshaft and crane.

5. Release crane pressure and repeat step 4 to verify the measurement.6. Repeat the measurement process for each main bearing. If a reading is outside Table 1 toler-

ances, contact your packager or Ariel.NOTE: Remove magnetic bases, dial indicators, and lifting strap after measurement.

Crankshaft Thrust (End) Clearance Measurement1. Attach the magnetic base of a button dial indicator to the top of a main bearing cap. Place the

button of the dial indicator against the side of the adjacent crankshaft web (see Fig. 10).2. Use a pry bar to pry against the compressor frame and thrust the crankshaft tight toward the dial

indicator. Release pressure and zero the dial indicator.3. Thrust the crankshaft tight in the opposite direction until the dial indicator needle stops moving,

then release pressure. Note reading. Repeat steps 2 and 3 to verify measurement accuracy.4. If the measurement is outside Table 1 tolerances, contact your packager or Ariel.NOTE: Remove magnetic bases, dial indicators, and pry bar after measurement.

FIGURE 9 Typical Crankshaft Journal Bearing Vertical Jack Clearance Measurement

Dial indicator magnetic base place-ment on top of a main bearing cap.

Needle dial indicator placement on top of adjacent crankshaft web.

Lifting strap placement around adja-cent web - attach strap to a crane.

FIGURE 10 Typical Crankshaft Thrust (End) Clearance Measurement

Dial indicator magnetic base place-ment on top of main bearing cap.

Button type dial indicator placement against the side of crankshaft web.

Pry against compressor frame to thrust crankshaft back and forth.

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Compressor Clearance, Oil, and Temperature RecordSERIAL NO. F-_____________________ MODEL Date ___________________

After new bearing installation, if measured clearances exceed tolerances of Table B-1 in Appendix B, contact your packager or Ariel before proceeding.

CRANKSHAFT THRUST (END) CLEARANCE, In. (mm)

Crankshaft Serial Number Thrust Clearance, In. (mm)

CONNECTING ROD THRUST (SIDE) CLEARANCE, In. (mm)

Throw 1 Throw 2 Throw 3 Throw 4 Throw 5 Throw 6

JACK CLEARANCES, In. (mm)

Throw # 1 2 3 4 5 6

Main Bearing

Conn. Rod Bearing

OIL PRESSURE AND TEMPERATURE

Date Time RPMFilter Inlet

Oil Pressurepsig (barg)

Filter OutletOil Pressurepsig (barg)

Oil Temp.into Frame

°F (°C)Remarks

Throw

BEARING CAP TEMPERATURE, °F (°C), AFTER RUN TIME OF:

3 Minutes Idle Speed(engine, VFD)

1 Minute (single speed motor)No Gas Load

Additional 3-5 MinutesFull Speed

No Gas Load

Additional 10-15 MinutesFull SpeedGas Load

Main Rod Main Rod Main Rod

1

2

3

4

5

6

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Ariel Contact Information

Ariel Response Center Technicians or Switchboard Operators answer telephones during Ariel busi-ness hours, Eastern Time - USA or after hours by voice mail. Contact an authorized distributor to purchase Ariel parts. Always provide Ariel equipment serial number(s) to order spare parts.The after-hours Telephone Emergency System works as follows:1. Follow automated instructions to Technical Services Emergency Assistance or Spare Parts

Emergency Service. Calls are answered by voice mail.2. Leave a message: caller name and telephone number, serial number of equipment in question

(frame, cylinder, unloader), and a brief description of the emergency.3. Your voice mail routes to an on-call representative who responds as soon as possible.

Contact Telephone Fax E-MailAriel Response Center 888-397-7766

(toll free USA & Canada) or 740-397-3602 (International)

740-397-1060 [email protected] Parts 740-393-5054 [email protected] Entry 740-397-3856 ---

Ariel World Headquarters740-397-0311 740-397-3856

[email protected] Services [email protected]

Web Site: www.arielcorp.com

connecting rod replacement

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