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NACD SP214AM Installation Operation & Maintenance

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NACD Power Take-Off Service Manual
1022763AM
SP214AM and SP314AM Clutches
Includes Installation, Operation, Maintenance and Overhaul Instructions

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Summary of Contents for NACD SP214AM

  • Page 1 NACD Power Take-Off Service Manual 1022763AM SP214AM and SP314AM Clutches Includes Installation, Operation, Maintenance and Overhaul Instructions...
  • Page 2 Phone: (800) 383-9204 (815) 282-7960 North American Clutch & Driveline Fax (815) 282-9160 Rockford, Illinois www.naclutch.com...
  • Page 3 NACD. WARRANTY: NACD’s limited Warranty is described in detail in this publication. It is the responsibility of the original purchaser or manufacturer, successive buyers, users, third parties or employees to make themselves aware of this warranty and all conditions it contains.

  • Page 4: Table Of Contents

    TABle Of CONTeNTS INTRODUCTION General Information Replacement Parts Preventive Maintenance/Troubleshooting Safety Sources of Service Information Warranty DeSCRIPTION AND SPeCIfICATIONS General Information Identifying the Power Take-Off Model Identifying the SAE Housing Size Specifications PTO Support Plate Specifications Wear Limits Torque Values for Fasteners INSTAllATION Installation Tips Prior to Installation (Ref;SAE J1033 and J617)
  • Page 5 TABle Of CONTeNTS Friction Plate Replacement Field Adjustment - Tapered Roller Bearing End Play DISASSeMBly Power Take-Off Removal From The Engine Clutch Removal Clutch Disassembly Bronze Collar Disassembly Ball Bearing Collar Disassembly Remove the Operating Shaft and Throwout Yoke Clutch Shaft and Housing Disassembly - Configuration A Clutch Shaft and Housing Disassembly - Configuration C CleANINg AND INSPeCTION Cleaning and Inspection...

  • Page 6: Introduction

    If shipping instructions are not specified, the equipment will be shipped the best way, considering time and expense. NACD will not be responsible for any charges incurred by this procedure.

  • Page 7: Preventive Maintenance/Troubleshooting

    NACD having stipulated the bill of material number on the unit’s nameplate absolves itself of any responsibility resulting from any external, internal or installation changes made in the field without the express written approval of NACD. All returned parts, new or old, emanating from any of the above-stated changes will not be accepted for credit.

  • Page 8: Safety

    NACD. SOURCeS Of SeRVICe INfORMATION Each series of maintenance manuals issued by NACD is current at the time of printing. When required, changes are made to reflect advancing technology and improvements in state-of- the-art.

  • Page 9: Warranty

    DeSCRIPTION AND SPeCIfICATIONS geNeRAl INfORMATION The SP214AM and SP314AM Series NACD Power Take-Offs are engine-mounted power take- offs that use cast iron one-piece housings and contain an integral clutch 14 inches in diameter. The engine drives the clutch through a drive ring that is bolted to the engine flywheel and connected to the clutch through internal teeth that mesh with external teeth on the clutch friction plate(s).

  • Page 10: Identifying The Sae Housing Size

    21.75 530.22 20.875 12.29 0.484 SPeCIfICATIONS Maximum Safe Operating Speeds for NACD Take-offs (Refer to BOM and NACD Power Take-Off Reference Listing) Table 2: Maximum Safe Operating Speeds Ductile Iron Drive Ring Grease PTO Model Lubricated Main Solid Drive Plate(s)
  • Page 11 Tapered Roller Bearings Used in Side-Loaded applications Recommended End Play Model Number inches SP114AM Series 0.15 – 0.25 0.006 – 0.010 SP214AM Series 0.15 – 0.25 0.006 – 0.010 SP314AM Series 0.15 – 0.25 0.006 – 0.010 Table 5. Recommended Bearing End Play...
  • Page 12 Table 6. Torque at operating shaft to engage clutch Required Torque on Operating Shaft Model Number Lb.-Ft. SP114AM Series 295 - 391 218 - 289 SP214AM Series 295 - 391 218 - 289 SP314AM Series 295 - 391 218 - 289 PTO Deflection PTO deflection due to loads imposed by the application should not exceed 0.254 mm (0.010 in.).

  • Page 13: Pto Support Plate Specifications

    NACD PTO SUPPORT PlATe SPeCIfICATIONS NACD requires that a support plate be used with SP214AM and SP314AM Series models used in side-load applications and recommends that a support plate be used for certain in-line applications. Figure 2. Typical Support Plate Illustration Table 7.

  • Page 14: Wear Limits

    WeAR lIMITS Figure 1 & 3: Housing/Bearing Carrier Illustrations Bearing Bore Dim. Housing Housing Illustration A (Maximum) Part Part Number Number inches Number 127.025 5.001 8424AM 127.025 5.001 8424FAM A5194AM 152.425 6.001 152.425 6.001 A5195AM Main Bearing Main Bearing Pilot Bearing Shaft Illus.

  • Page 15: Torque Values For Fasteners

    Figure 4. Clutch Shaft Illustrations TORQUe VAlUeS fOR fASTeNeRS Note: The tables below provide information for several different types of fasteners: U.S. Standard Fine and Coarse Thread Capscrews, Bolts, and Nuts; Metric Coarse Thread Capscrews, Bolts, and Nuts; Tapered Pipe Plugs (with thread lubricant); Straight Threaded Tube Fittings, Hose Fittings, and O-ring Plugs.
  • Page 16 Table 10. U.S. Standard Fine and Coarse Thread Capscrews, Bolts, and Nuts Thread SAE Grade 5 SAE Grade 8 Diameter lb.-ft. lb.-ft. 8 – 11 6 – 8 14 – 16 10 – 12 18 – 23 13 – 17 27 –...
  • Page 17 Table 12. Tapered Pipe Plugs (with thread lubricant) NPTF In Cast Iron or Steel In Aluminum Size (in.) N-m (+ or - 5%) lb.-ft. (+ or - 5%) N-m (+ or - 5%) lb.-ft. (+ or - 5%) 11.5 1/6-27 10.5 1/8-27 21.5...
  • Page 18 Table 13. Straight Threaded Tube Fittings, Hose Fittings, and O-ring Plugs Nominal N-m (+ lb.-ft (+ Nominal N-m (+ lb.-ft (+ Thread or – 5%) or -5%) Thread or – 5%) or -5%) Diameter Diameter 5/16 M10X1.0 11.5 M12X1.5 7/16 M14X1.5 M16X1.5 9/16...

  • Page 19: Installation

    INSTAllATION TIPS Tapered Roller Bearing Adjustment 1. Tapered roller bearing end play adjustment is different in SP114AM, SP214AM and SP314AM Series Power Take-Offs for side load applications than it is for in-line applications. Insure that the adjustment is correct for the application.
  • Page 20 10. When mounting the engine and Power Take Off in the machine, a customer-supplied support plate may be required to support the output end of the pto housing. See the information about customer-supplied support plates, in the NACD Support Plate Specifications contained in the Description and Specifications section of this manual.
  • Page 21 Belt Or Chain Tension/Allowable Side load Pulls 11. Avoid excessive tightening of belts or chains. See the Allowable Side Load tables in this Installation section. 12. Avoid excessively loose belts or chains. Belt tension or chain adjustment that is below specifications can cause belt/chain “whip”...
  • Page 22 The throwout collar is lubricated by grease through a grease fitting on the outside of the main housing. b. All SP114AM, SP214AM and SP314AM Series main bearings are lubricated by grease through a grease fitting in the housing or bearing carrier.

  • Page 23: Prior To Installation (Ref;Sae J1033 And J617)

    NACD will not be responsible for system damage caused by engine to Power Take-Off match- up regardless of the cause of interference. This engine crankshaft end play check is considered mandatory.
  • Page 24 3. Rotate the shaft through on entire revolution and note the runout. The total indicator reading (T.I.R.) must not exceed: SAE #1 Housing 0.30 mm. (0.012 in.) Note: The flywheel and crankshaft of the engine must be held against either the front or rear of the crankshaft thrust bearing while the total indicator sweep (T.I.R.) is being made.
  • Page 25 7. Rotate the shaft through one entire revolution and note the face runout of the flywheel. The total indicator reading (T.I.R.) must not exceed 0.01mm. (0.0005 in.) per 25.4 mm. (per inch) of flywheel diameter. Note: The flywheel and crankshaft of the engine must be held against either the front or rear of the crankshaft thrust bearing while the total indicator sweep (T.I.R.) is being made.

  • Page 26: Drive Ring Installation

    DRIVe RINg INSTAllATION Refer to information regarding cleaning and inspection of the drive ring in the Cleaning and Inspection section of this manual before proceeding. 1. Clean the drive ring and flywheel of any dirt or debris as necessary. 2. Use crocus cloth or emery cloth to remove any surface imperfections such as nicks, burrs, and sharp edges on the O.D.

  • Page 27: Roller-Type Pilot Bearing Installation

    Some NACD Power Take-Offs are designed with roller-type pilot bearings. All of the roller-type bearings available from NACD are the separate race type, i.e. the inner race is removable from the outer race and seal assembly. Due to its design configuration, axial alignment of the inner and outer races is extremely important.
  • Page 28 Figure 13. Support the PTO standing on the end of the shaft 2. Heat in an oven or press the pilot bearing inner race on the clutch shaft so it is flush with the input end of the shaft. 3. Carefully measure dimension (a). Record the measurement. 4.

  • Page 29: Pto Installation To Engine Or Driving Member

    PTO INSTAllATION TO eNgINe OR DRIVINg MeMBeR 1. Clean the PTO housing flange, flywheel housing flange, and pilot bearing bore of any debris. 2. Make sure the housing flange and flywheel housing flange are free of surface imperfections such as nicks, burrs, and sharp edges. Remove them using fine emery cloth or crocus cloth. 3.

  • Page 30: Hand Lever Position For Power Take-Offs

    8. Align the sheaves as described in Position and Measure Alignment of the Sheave in this section. 9. Install the support plate if it is to be used. Refer to support plate information in NACD PTO Support Plate Specifications Description and Specifications section. Install eight M12 x 1.75 pitch 8.8 Property Class quality capscrews per ISO 989-1.
  • Page 31 Position the hand lever as described above and also position and lock a stop collar on the operating shaft so that the throwout yoke is centered on the throwout collar. Contact NACD's Sales and/or Service Department for information on use of a stop collar.

  • Page 32: Position And Measure Alignment Of The Sheave

    POSITION AND MeASURe AlIgNMeNT Of THe SHeAVe 1. Align the driveR and driveN shafts so that the faces of the sheaves are aligned and parallel to each other. Misalignment must be LESS THAN 1/2 of 1 degree between the faces. 2.

  • Page 33: Allowable Side Loads

    (crushers, chippers, planers) A support plate must be attached at the rear of the PTO if it is subjected to side load operation of the shaft. See the NACD Support Plate Specifications in the Description and Specifications section of this manual.

  • Page 34: Alignment-U-Joint-Type Installation

    AlIgNMeNT - U-JOINT-TyPe INSTAllATION Refer to illustration on next page. To realize the longest possible life of the power take-off bearings, the best possible alignment must be maintained between the center line of the power take-off shaft and the center line of the driven unit shaft.

  • Page 35: Setting Up Air Engagement On Power Take Offs

    Figure 21. Alignment - U-Joint-Type Installation SeTTINg UP AIR eNgAgeMeNT ON NACD POWeR TAKe OffS 1. The cylinder should be located so that the piston moves forward and backward in exactly the same direction as the engagement lever and is aligned so it travels in exactly the same plane.
  • Page 36 Note: The hand lever length is the distance from the center of the operating shaft to the point where the cylinder will be connected to the lever. Table 15. Engaging Stroke Travel at 25.4 mm. (1 in.) Engaging Stroke Travel at 25.4 mm. (1 in.) Model Inches SP114AM, SP214AM Series 7.925 0.312 SP314AM Series 7.950 0.313 Determine the engaging force in pounds required at the cylinder.
  • Page 37 Note: Periodically disconnect the power cylinder to measure the clutch engagement force. Table 16. Engaging Force Required at Cylinder at 25.4 mm. (1 in.) Engaging Force in Cylinder Model Force (newtons) Force (pounds) SP114AM, SP214AM and 14012 3150 SP314AM Series NOTES Phone: (800) 383-9204 (815) 282-7960 North American Clutch &...

  • Page 38: Operation

    OPeRATION geNeRAl INfORMATION NACD model SP114AM, SP214AM and SP314AM Series Power Take-Offs consist of a manually engaged and disengaged disconnect clutch mounted on an output shaft in a cast iron housing that is bolted to the engine. Clutch engagement and disengagement is accomplished by means of an operating lever on the outside of the PTO housing, which actuates an internal linkage mechanism.

  • Page 39: Clutch Engagement Procedure

    ClUTCH eNgAgeMeNT PROCeDURe Normal Clutch engagement An NACD PTO clutch should normally be engaged with the engine at the lowest RPM possible. The clutch should be engaged quickly to avoid an extended period of slippage during engagement. The clutch should be engaged with the engine operating below 1,000 RPM .
  • Page 40 Clutch engagement To Clear A Jammed Driven Device Never engage the PTO to unjam a stuck load. Doing so could result in injury to the operator, and damage to the equipment. Always shut the engine off and disengage the clutch before clearing a jammed load. The jam should be cleared, and the output shaft must be rotated to be certain that the jam is completely removed before starting the engine and engaging the PTO.

  • Page 41: Maintenance

    Clutch Adjustment in this Maintenance section. Failure to do so will result in premature clutch wear and failure. Note: NACD will not be responsible for any damage or injury resulting from improper adjustment and/or lubrication. This includes any accessory drives and loads.
  • Page 42 Hand lever Position 5. Throwout bearing failures may be, among other causes, the result of improper hand lever position. See Hand Lever Adjustment for NACD Power Take-Offs in the installation section of this manual. Alignment 6. The flywheel and flywheel housing alignment should have been set within specifications prior to installation of the power take-off and must be maintained for long service life of the components.
  • Page 43 Air engagement Mechanisms 10. Air engagement mechanisms are to remain properly adjusted at all times. See Setting Up Air Engagement on NACD Power Take-Offs in the Installation section. lubrication Grease Specifications Use NLGI Grade 2 Lithium grease with a minimum 149° C. (300° F.) drop point for all lubrication.
  • Page 44 Pilot Bearing All SP114AM, SP214AM and SP314AM Series with sealed for life pilot bearings. The pilot bearing supplied with most NACD power take-offs are pre-lubricated and sealed for life.
  • Page 45 Clutch linkage All Models Lubricate the clutch linkage mechanism, cotter pins, clevis pins and levers, with engine oil every 500 hours of operation. DO NOT OVeRgReASe! Lubricate sufficiently but sparingly. Excess oil can splash or drip onto the friction plates, causing clutch slippage that may result in clutch failure.

  • Page 46: Friction Plate Replacement

    All SP114AM, SP214AM and SP314AM Series: The only approved method for field adjustment of tapered roller bearings (39, 40, 41, 42) in NACD Power Take-Off units is by the use of a dial indicator to read actual bearing end play. Adjustment: Refer to the procedure in (Final Setting) Measure and Set Bearing End Play as described for your bearing housing configuration in the Assembly section of this manual.
  • Page 47 ADJUSTMeNT - TAPeReD ROlleR BeARINg eND PlAy - (IN-lINe PTO APPlICATIONS) All SP114AM, SP214AM and SP314AM Series: 1. Field experience for tapered roller bearings (39, 40, 41, 42) used with in-line drive installations indicates that extra care must be taken when adjusting the power take-off tapered roller bearings.

  • Page 48: Disassembly

    DISASSeMBly The following procedure is for complete disassembly of the unit. Prior to this procedure, the power take-off should be removed from the engine. Qualified personnel should do the work in a fully equipped facility. Note: Illustrations used here are to aid in understanding and completing the procedure, and may not appear to be consistent with the previous disassembly steps.

  • Page 49: Clutch Removal

    6. Straighten the bent portion of the hub nut lock washer. Use the following size wrench or socket to remove the hub nut from the clutch shaft; SP114AM - 2.50", SP214AM - 4.00" and SP314AM - 3.50". Remove the hub nut lock washer.

  • Page 50: Clutch Disassembly

    7. Use a gear puller with threaded legs for 1/2"-13 UNC tapped holes to pull the clutch assembly from the clutch shaft. Install the puller so the threaded legs screw into the holes provided in the hub-and-back plate and the jackscrew exerts force on the end of the clutch shaft. The thread puller holes are not to be used as jackscrews.

  • Page 51: Ball Bearing Collar Disassembly

    BAll BeARINg COllAR DISASSeMBly 6. Remove the internal snap ring (31) from the sleeve side of the collar (28) and let it hang on the sliding sleeve. 7. Tap the collar from the release bearing (30). 8. Remove the external snap ring (29) from the sliding sleeve. 9.

  • Page 52: Remove The Operating Shaft And Throwout Yoke

    Proceed to Clutch Shaft and Housing Disassembly: Two main bearing configurations are illustrated. Refer to the NACD Power Take-Off Reference Listing in the Description and Specifications section to determine which configuration is used in your PTO.

  • Page 53: Clutch Shaft And Housing Disassembly - Configuration C

    1. Support the PTO on the bench with the input end up. Remove the hex head capscrew (35), lock washer (36) and the retainer clip (37) so the bearing retainer (38) may be rotated. 2. Rotate the bearing retainer counter-clockwise to remove it. 3.
  • Page 54 1. Turn the power take-off housing with attached parts over on the bench. Support the housing so the output end of the clutch shaft faces up and is free to rotate. There should be a clearance below the input end of the clutch shaft. 2.

  • Page 55: Cleaning And Inspection

    CleANINg AND INSPeCTION Bearings 1. Thoroughly wash bearings in clean solvent if they have been in service. Soak bearings in solvent if they are particularly dirty. Never dry bearing with compressed air. Do not spin bearings while they are not lubricated. Oil bearings with SAE 10 engine oil immediately after cleaning.
  • Page 56 Housings, Cast Parts and Machined Surfaces 5. Replace cast parts or housings that are cracked. 6. Inspect bearing bores for grooved, burred or galled conditions that would indicate that the bearing has been turning in its housing. If the damage cannot be repaired to like-new condition with a crocus cloth, replace the part.
  • Page 57 Shafts, Seal lip Contact Surfaces And Bearing Journals 9. Inspect machined surfaces for burrs, scratches, nicks and foreign matter. If such defects cannot be removed with crocus cloth or a soft stone, replace the part. 10. Inspect bearing journals on the shaft for grooved, burred or galled conditions that would indicate that the bearing has been turning on the shaft.

  • Page 58: Assembly

    Note: Illustrations used here are to aid in understanding and completing the procedure, and may not appear to be consistent with the previous assembly steps. Note: Two main bearing configurations are illustrated. Refer to the NACD Power Take-Off Reference Listing in the Description and Specifications section to determine which configuration is used in your PTO.

  • Page 59: Clutch Assembly

    ClUTCH ASSeMBly Bronze Throwout Collar only: (Ball Bearing Type Throwout Collar skip to step 3.) 1. Lubricate the shoulder of the sliding sleeve (27) with No. 30 engine oil prior to installation of the split collar. Place the throwout collar halves over the sliding sleeve shoulder. Install 2 hex head capscrews 1/2"-20 x 3 1/4".
  • Page 60 Figure 42. Assembly of Ball Bearing Type Throwout Collar 4. Press the ball bearing (30) on the sleeve. Press tight to stop against the shoulder. Note: Pack the bearing with grease before installing it on the collar. Note: Apply force only against the inner race of the bearing. Pressing against the outer race or contact with the balls will damage the bearing, leading to premature failure.
  • Page 61 SP214AM and SP314AM Series Plate Stack (SP314AM is shown) SP214AM and SP314AM Series Clutches only: (SP114AM Series Clutches, skip to step 14) 10. Install a center plate (7) so it rests flat on the friction plate, meshing the splines of the center plate and hub-and-backplate.
  • Page 62 Figure 44. Illustration - Levers, Links, Sleeve, Throwout Collar 16. Push down on the pin, compressing the spring while screwing the adjusting yoke (26) partially onto the threaded part of the hub-and-back plate. 17. Place the levers (9) between the lugs of the pressure plate and secure to the pressure plate with four clevis pins (11).
  • Page 63 19. Attach eight lever links (15) one on each side of each of the four clutch levers (9). Secure with four clevis pins (14) and four cotter pins (13). 20. Place the pre-assembled sliding sleeve (27) on the adjusting yoke, aligning the four lugs between the four pairs of lever links.

  • Page 64: Clutch Shaft And Housing Assembly - Configuration A

    (See note below regarding alternative installation method. ) Note: Special tools are not available from NACD, but can be fabricated in any capable machine shop. Note: Use a piece of steel tubing approximately 5 cm. (2 inches) longer than the distance from the end of the shaft to the shoulder and just slightly larger in inside diameter than the bearing cone’s inside diameter.
  • Page 65 Figure 48. Install bearing cones on the shaft Note: An alternative method to install the bearing cones is to heat them in an oven at 135° C. (275° F.) for one hour and install them immediately on the clutch shaft. Let the bearing cone cool to room temperature after installation while continuing to apply force as the bearing cools.
  • Page 66 Note: Special tools are not available from NACD, but can be fabricated in any capable machine shop. Note: Installation Tip A scrap bearing cup the same size as the one being installed (41) may be used as an installation tool in addition to a flat plate.
  • Page 67 (Preliminary setting) Measure and set bearing end play. The only approved method for adjustment of tapered roller bearings in NACD Power Take- Offs is by use of a dial indicator to read actual bearing end play. This preliminary setting is for assembly purposes only.
  • Page 68 SP114AM Series with Bearing Retainer A3050AM: Back off 4 1/2 - 5 1/2 notches SP214AM, SP314AM Series with Bearing Retainer A3308AM or A3308BAM: Back off 3 3/4 - 4 3/4 notches Note: Bump the output end of the shaft with a soft mallet hard enough to move and seat the front bearing cup up against the bearing retainer and create the specified bearing clearance after each adjustment of the bearing retainer.
  • Page 69 Figure 51. Measuring and setting bearing end play 16. Carefully and gently lower the unit back onto the supports. Allow the hoist to go slack. Apply approximately 90.7 Kg. (200 lbs.) of downward force on the shaft while dial indicator reading is being taken.

  • Page 70: Clutch Shaft And Housing Assembly - Configuration C

    18. Once the bearing end play adjustment is completed, match-mark the bearing retainer and bearing housing so the bearing retainer may be removed and reinstalled in the same exact position. 19. After match-marking the bearing retainer and bearing housing, remove the bearing retainer (38) and front bearing cup (39).
  • Page 71 Clutch Shaft 1. Clean the tapered bearing cones (40 & 41) and clutch shaft (48) with isopropyl solvent to remove any oil or grease residue. Note: Do not use any oil or paraffin based solvents. 2. Use an arbor press to install the two bearing cones on the clutch shaft. Install the cones, one from each end, with the back faces (wide section) butting against the shoulder on the clutch shaft.
  • Page 72 Configuration C 1. Support the bearing carrier (47) on the bench so the input end is up. Use a piece of steel tubing or round plate slightly smaller in diameter than the outer diameter of the rear main bearing cup. Place the bearing cup (41) on the carrier, back face down. Be sure the steel tubing or plate does not press against the bearing contact surface in the cup.
  • Page 73 The only approved method for adjustment of tapered roller bearings in NACD Power Take- Offs is by use of a dial indicator to read actual bearing end play. This preliminary setting is for assembly purposes only. Final bearing end play must be adjusted as described below in (Final setting) Measure And Set Bearing End Play.
  • Page 74 SP114AM Series with Bearing Retainer A3050AM: Back off 3 1/2 - 4 1/2 notches SP214AM, SP314AM Series with Bearing Retainer A3308AM or A3308BAM: Back off 2 3/4 - 3 3/4 notches For in-line applications: Back off the bearing retainer (38) to create a clearance between the bearing retainer and bearing cup.
  • Page 75 13. Lift the unit off the supports using the hoist. Apply approximately 90.7 Kg. (200 lbs.) of downward force on the bearing carrier while dial indicator is being set. Mark a spot on the end of the shaft next to the stem as a starting reference point and set the dial indicator to “zero.” Figure 63.
  • Page 76 16. Once the bearing end play adjustment is completed, match-mark the bearing retainer and bearing housing so the bearing retainer may be removed and reinstalled in the same exact position. 17. After match-marking the bearing retainer and bearing housing, remove the bearing retainer (38) and front bearing cup (39).

  • Page 77: Install The Operating Shaft And Throwout Yoke

    (Proceed to Install the Operating Shaft and Throwout Yoke) INSTAll THe OPeRATINg SHAfT AND THROWOUT yOKe SP114AM, SP214AM and SP314AM Series: 1. Position the clutch housing on a bench with the input end facing up. Install the operating shaft (55) halfway into the clutch housing. Slip the throwout fork (54) onto the operating shaft and push the shaft through to the hole on the other side of the clutch housing far enough to expose one of the woodruff key slots at the center of the throwout fork.

  • Page 78: Pto Final Assembly

    3. Push the operating shaft the other way to expose the other key slot in the center of the fork. 4. Install the other woodruff key (56). 5. Center the operating fork so the hex head capscrews will enter the bottom of the throwout fork and thread into the top section.
  • Page 79 Figure 79. Assemble clutch into Power Take-Off 4. Drive the hub key (29) into position slightly below the surface of the hub-and-back plate (4). Note: Do not use excessive hammer force when installing the key. 5. Install the hub nut lock washer (3) over the clutch shaft (33), locating its tab in the drilled hole on the hub-and-back plate (4).
  • Page 80 9. Install all remaining plugs and external components on the power take-off. Center The Clutch Plates 10. If not previously done, visually center the friction plates (6) on the clutch and align the teeth. Press down on the collar assembly to lock the plates in place. If necessary, pull the adjustment lock pin to compress the lock pin spring, and rotate the adjusting yoke assembly until the plates are locked in position when the collar is pressed down.
  • Page 81 final Assembly And lubrication 11. Install the power take-off according to instructions in the Installation section of this manual. 12. Adjust the clutch according to Clutch Adjustment in the Maintenance section of this manual. 13. Fill the main bearing cavity with grease or oil according to lubrication specifications in the Maintenance section and Filling the Main Bearing Cavity during initial assembly in the Description and Specifications section of this manual.

  • Page 82: Illustrations

    Of IllUSTRATIONS The following pages include illustrations that are specific to the model. The illustrations included are listed below. Parts Identification List - SP114AM, SP214AM and SP314AM Series Exploded View SP114AM and SP214AM Series Clutches Exploded View SP314AM Series Clutches...

  • Page 83: Parts Identification List - Sp114Am, Sp214Am And Sp314Am Series

    PARTS IDeNTIfICATION lIST - SP114AM, SP214AM AND SP314AM SeRIeS Pilot Bearing Washer Hub-and-back plate Ring, drive Plate, friction 1,2 or 3 Plate, center 1 or 2 Plate, pressure Lever Washer (lever to pressure plate) Pin, clevis (lever to pressure plate)
  • Page 84 PARTS IDeNTIfICATION lIST - SP114AM, SP214AM AND SP314AM SeRIeS Retainer, clip Retainer, bearing Bearing, cup-front Bearing, cone-front (or bearing-qty.1) Bearing, cone-rear (or bearing-qty. 1) Bearing, cup-rear Housing Plate, instruction Screw, machine Carrier, bearing Screw, hex-head Washer Fitting Fitting Plug Hand lever assembly...

  • Page 85: Exploded View Sp114Am And Sp214Am Series Clutches

    VIeW (SP114AM AND SP214AM SeRIeS ClUTCHeS) Typical SP114AM Series Clutch with Bronze Throwout Collar Typical SP214AM Series Clutch with Ball-Type Throwout Collar Phone: (800) 383-9204 (815) 282-7960 North American Clutch & Driveline Fax (815) 282-9160 Rockford, Illinois www.naclutch.com...

  • Page 86: Exploded View Sp314Am Series Clutches

    eXPlODeD VIeW (SP314AM SeRIeS ClUTCHeS) Typical SP314AM Series Clutch with Ball-type Throwout Collar Phone: (800) 383-9204 (815) 282-7960 North American Clutch & Driveline Fax (815) 282-9160 Rockford, Illinois www.naclutch.com...

  • Page 87: Exploded View (Configuration A)

    eXPlODeD VIeW (CONfIgURATION A) Note: Typical unit illustrated Phone: (800) 383-9204 (815) 282-7960 North American Clutch & Driveline Fax (815) 282-9160 Rockford, Illinois www.naclutch.com...

  • Page 88: Exploded View (Configuration C)

    eXPlODeD VIeW (CONfIgURATION C) Note: Typical unit illustrated Phone: (800) 383-9204 (815) 282-7960 North American Clutch & Driveline Fax (815) 282-9160 Rockford, Illinois www.naclutch.com...
  • Page 89 Off products and parts, such warranty shall extend for a period of twenty-four (24) months from the date of original shipment by NACD to the original customer, but not to exceed twelve (12 months of service or one thousand five hundred (1,500) hours of service, whichever occurs first.
  • Page 90 NOTICe NACD makes no warranty or guarantee of any kind, expressed, implied or otherwise, with regard to the information contained within this manual. NACD assumes no responsibility for any errors that may appear in this manual and shall not be liable under any circumstances for incidental, consequential or punitive damages in connection with, or arising out of, the use of this manual.
  • Page 91 P.O. Box 15130 Rockford, IL. 61132 Phone: (800) 383-9204 Fax: (815) 282-9160 www.naclutch.com...

This manual is also suitable for:

Sp314am

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