WORK INSTRUCTIONS. Tapered Pin Adjustment. Table of Contents. Instruction Number: WI0020 Revision: A

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1 TITLE: Tapered Pin Adjustment Instruction Number: WI0020 Revision: A Description: Applicable Product(s): Adjustment of 2012 and 2013 design tapered pins in nut retained spherical bearings for stabilizer hull unit hydraulic cylinders QC2600 and QC3600 hull units Table of Contents Warnings and Precautions... 2 Warnings... 2 Vessel Status... 2 Background... 3 Purpose of Adjustment... 3 Tapered Pin Adjustment Methodology... 4 Getting Started... 5 Equipment... 5 Hardware and Tools... 5 Adjustment Wrench... 6 Nut Clip... 6 Reference Material... 7 Time to Complete... 7 Instructions... 7 Secure the Stabilizer System... 7 Lock Tapered Pin Position... 8 Compress the Bearing... 9 Return System to Normal Operating Conditions Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

2 Warnings and Precautions Tapered Pin Adjustment, Rev A Warnings Fin Movement The fin will be rotated in this procedure. Fin collision with a person may result in fatal injuries. Fin collision with an object will most likely result in damage to the fin or object. While performing this procedure, maintain awareness of fin position and any obstacles to its movement located outside of the vessel. Only perform this procedure while the vessel is in the water. Fin movement may cause the vessel to roll; notify the crew before rotating the fins. Moving Equipment This procedure requires working around moving equipment, capable of causing serious physical injury. While performing this procedure, carefully follow all instructions. Controller and valve setting adjustments listed in the instructions are included for safety. Failure to perform those steps may result in personal injury or equipment damage. Be aware of the placement of body parts and loose items such as loose fitting clothing. Hot Equipment This procedure requires working on hydraulic equipment, which may be hot. Elevated equipment temperatures can be enough to cause skin burns. Be aware of the placement of body parts and loose items such as loose fitting clothing. Torque Value Heed indicated torque values and DO NOT OVERTIGHTEN. Exceeding specified torque values for fasteners can drastically reduce bearing adjustability and service life. Vessel Status This task requires the stabilizer controller and system to be on standby and operating during certain periods of the procedure. It is strongly recommended to perform this maintenance while the vessel is dockside or in a very gentle sea state at anchor. For safety reasons, do not perform procedure while underway. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

Background Tapered Pin Adjustment, Rev A Purpose of Adjustment Loads from the hull unit cylinders are transferred to the hull unit shaft via a pin and bearing.

3 Background Tapered Pin Adjustment, Rev A Purpose of Adjustment Loads from the hull unit cylinders are transferred to the hull unit shaft via a pin and bearing. The bearing consists of an inner and outer race separated by a liner. The liner is designed to wear over time in order to keep the inner and outer race properly lubricated. As a result of the liner wear, the clearance between the inner and outer race increases over time. Although the bearing is still fully functional, the increased clearance can result in a knocking sound which can be disruptive to those onboard the vessel. To reduce the clearance and associated sound without the work of replacing the bearings, Quantum employs tapered pins. These pins are used to compress the outer race onto the inner race to compensate for increased clearances due to liner wear. Figure 1: Illustration of spherical bearing with portion of outer race removed Based on internal testing, cooperation with bearing manufacturers, and experience, Quantum recommends adjustment of the pins according to the intervals provided in the Quantum Maintenance Schedule. Adjusting less frequently than stated in the schedule should not affect the functionality or life of the bearing, but may result in unappreciated sounds. Adjusting more frequently than stated in the schedule may result in unnecessary wear and decreased life of the bearing. The wear and corresponding play of the tiller side bearings is likely to be greater than that in the housingside bearings. This divergence is due to the large difference in swivel angles both sets of bearings endure during typical hull unit operation. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

Tapered Pin Adjustment Methodology In essence, the objective of this procedure is simply to wedge a tapered bushing between the cylinder eye and bearing outer race.

Explained briefly and without detail, the process is to re engage the cylinder pin in the tiller or housing.

When adjustment is completed, a nut clip is installed to lock the clamping nut.

4 Tapered Pin Adjustment Methodology In essence, the objective of this procedure is simply to wedge a tapered bushing between the cylinder eye and bearing outer race. The resulting pressure against the outer race of the spherical bearing causes it to compress and reduce play. Explained briefly and without detail, the process is to re engage the cylinder pin in the tiller or housing. Then, tighten the clamping nut to push the conical bushing down into the cylinder eye, reducing the clearance between the inner and outer race of the spherical bearing. When adjustment is completed, a nut clip is installed to lock the clamping nut. Figure 2: Cross section of 2012 design nut retained tapered pin Please note that the 2013 design tapered pin incorporates an additional plate directly under the top plate, which is used to facilitate pin removal. This plate has no effect on the adjustment procedure. Therefore, this instruction applies to both the 2012 and 2013 design tapered pin arrangements. For simplicity, the figures in this document illustrate the 2012 design arrangement. The steps in the following pages explain details of how to perform the adjustment. Please be sure to follow each step carefully. This procedure involves handling heavy equipment that is capable of moving quickly. Injury or damage is possible if safety precautions are not taken. Figure 3: 2012 design (top) and 2013 design (bottom) tapered pins WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

5 Getting Started Tapered Pin Adjustment, Rev A Equipment Before beginning work, ensure that the following equipment is on site and available: Item Type Quantity Source Adjustment Wrench Special tool 2 or 3 Quantum Fin Oscillation Simulator Special tool 1 Quantum Nut Clip Special hardware 1 Quantum Torque Wrench (Range 0 40Nm)* Tool 1 Customer Wrench* Tool 2 Customer Hammer Tool 1 Customer Punch (7mm diameter, 150mm [6 ] length) Tool 1 Customer Hose: Test port connection Tool 1 Customer Test gauge Tool 1 Customer Molykote P 37 Consumable As needed Customer Safety glasses Personal protective equipment (PPE) 1 Customer Table 1: Equipment needed for tapered pin adjustment *For wrench and socket sizes, consult the Hardware and Tools table below. Hardware and Tools Tapered pin adjustment requires manipulation of hardware, which varies with the nominal pin size. Nominal pin size is measured as the bore diameter in the tiller or housing. Consult the Cylinderpin Assembly drawing(s) provided in the manual for the installed nominal pin size(s). Below is a list of the hardware to be manipulated, their sizes for reference, and the tool type and size required. Hardware and Tools Quantity** Nominal Pin Size 70mm 90mm 110mm Stud Nuts: M10 M12 M12 Wrench 2 17mm 19mm 19mm Deep Socket 1 17mm 19mm 19mm Set Screw Nuts: M8 M8 M8 Wrench 1 13mm 13mm 13mm Table 2: Hardware and associated tools required, by nominal pin size ** Indicates quantity to be sourced by customer. Items indicated with are supplied in the pin assembly. Hardware is to be torqued per the instructions to a maximum torque, which is indicated below. Hardware Stud Nuts (Maximum) Set Screw Nut Table 3: Hardware torque specifications Torque Units Nominal Pin Size 70mm 90mm 110mm Nm Ft*lbs Kg*m Nm Ft*lbs Kg*m WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

Adjustment Wrench When torquing the clamping nut, a thin wrench is required to access the clamping nut in the clearance between the cylinder and tiller or housing.

Variations of the wrench offer assorted handle configurations to allow access to the nut at different equipment positions.

6 Adjustment Wrench When torquing the clamping nut, a thin wrench is required to access the clamping nut in the clearance between the cylinder and tiller or housing. Quantum has designed a series of thin wrenches for this purpose. Each wrench is fitted with a round head and tooth to engage the clamping nut. Variations of the wrench offer assorted handle configurations to allow access to the nut at different equipment positions. Figure 4: Sample adjustment wrenches Nominal Pin Size 70mm 90mm 110mm Handle Configuration Straight Part Number QCPIN90261 AA00 45 C QCPIN90262 AA00 45 S QCPIN90263 AA00 Straight QCPIN90361 AA00 30 QCPIN90362 AA00 Straight QCPIN90363 AA00 30 QCPIN90364 AA00 Table 4: Adjustment wrench part numbers The adjustment wrenches must be removed and safely stored elsewhere after the adjustment procedure is completed. Nut Clip Once adjustment is complete, a mechanism is required to maintain the clamping nut in the adjusted position. For this purpose, a nut clip is provided. The nut clip has teeth which engage in the clamping nut, and is held in position by a set screw. Because of the geometry of the cylinder, the nut clip is longer on the bore end of the cylinder than on the rod end. In addition, to facilitate use of the nut clip for various clamping nut torque positions, the nut clips are available in two (2) teeth configurations. Part numbers for the available nut clips are provided in Table 5. Figure 5: 2 teeth (left) and 3 teeth (right) nut clips Nominal Pin Size Teeth Configuration Part Number Bore End (Long) Part Number Rod End (Short) 70mm 3 Teeth QCPLA26122 AA00 QCPLA26121 AA00 2 Teeth QCPLA26124 AA00 QCPLA26123 AA00 90mm 3 Teeth QCPLA36134 AA00 QCPLA36133 AA00 2 Teeth QCPLA36143 AA00 QCPLA36144 AA00 110mm 3 Teeth QCPLA36160 AA00 2 Teeth QCPLA36168 AA00 Table 5: Nut clip part numbers WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

7 Reference Material Prior to beginning work, consult the Quantum manual for stabilizer controller operation guide and cylinder hydraulic pressure relief instructions. Also, consult Fin Oscillation Simulator operation instructions. Time to Complete With full accessibility to all components, it should take approximately 30 minutes to adjust each tapered pin. Instructions Secure the Stabilizer System 1. Activate the stabilizer controller and place the system in CENTER mode. 2. Put on safety glasses and take safety precautions as appropriate. 3. Extend the centering cylinders by engaging the extend manual over ride on the centering cylinder control valve on the stabilizer manifold as shown in Figure 6. Figure 6: Manual over ride to extend centering cylinders 4. Hydraulically isolate the hull unit by closing the ball valve on the stabilizer manifold P port or pressure filter. Close accumulator ball valve, if fitted. 5. Connect the Fin Oscillation Simulator to the local control module (FCM or ECM) and turn it ON. 6. Relieve hydraulic pressure in A and B cylinder lines. Confirm that the pressure is zero by connecting a gauge to the A and B gauge ports on the stabilizer manifold. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

Lock Tapered Pin Position 7. Use a hammer and punch to seat the cylinder pin. This will reduce the play between the cylinder pin and the bearing bushing.

Please store safely to prevent loss or damage. Figure 8: Stud locknuts (left) and stud nuts (right), shown in yellow. 9.

8 Lock Tapered Pin Position 7. Use a hammer and punch to seat the cylinder pin. This will reduce the play between the cylinder pin and the bearing bushing. Figure 7: Use of a punch through the holes in the top plate to seat the cylinder pin. 8. Remove the stud locknuts (quantity 6), using two wrenches. NOTE: This hardware will be reused. Please store safely to prevent loss or damage. Figure 8: Stud locknuts (left) and stud nuts (right), shown in yellow. 9. Check the torque on the stud nuts (quantity 6) on the top and bottom of the pin assembly. The nuts are to be torqued to the value provided in Table 3. NOTE: Monitor the position of the cylinder in the tiller or housing when torquing these nuts to avoid the cylinder or clamping nut from rubbing on the tiller or housing. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

10. Apply Molykote P 37 to the studs and install the locknuts (quantity 6). Tighten them firmly. 11. Repeat Steps 7 10 on all four (4) pin assemblies. Compress the Bearing 12.

9 10. Apply Molykote P 37 to the studs and install the locknuts (quantity 6). Tighten them firmly. 11. Repeat Steps 7 10 on all four (4) pin assemblies. Compress the Bearing 12. Remove the set screw locknut and the nut clip on all four (4) pin assemblies. NOTE: This hardware will be reused. Please store safely to prevent loss or damage. Figure 9: Nut clip and set screw locknut. 13. Open the P port or pressure filter ball valve. 14. Retract the centering cylinders by releasing the extend manual over ride and engaging the retract manual over ride on the centering cylinder control valve on the stabilizer manifold. Figure 10: Manual over ride to retract the centering cylinders. 15. Engage the Fin Oscillation Simulator in the SLOW position, and keep the MOVE button depressed while Step 16 is performed. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

16. Engage the adjustment wrench or a punch in the depressions of the clamping nut. Tighten the clamping nut by tapping the adjustment wrench or punch with a hammer firmly.

10 16. Engage the adjustment wrench or a punch in the depressions of the clamping nut. Tighten the clamping nut by tapping the adjustment wrench or punch with a hammer firmly. WARNING: Adjustment is performed while actuating the stabilizer hull unit. Actuate the hull unit using the Fin Oscillation Simulator for a few cycles, noting the range and speed of tiller and cylinder movement, before attempting the adjustment to avoid injury. Figure 11: Use of adjustment wrench to tighten clamping nut. 17. Release the MOVE button on the Fin Oscillation Simulator, and wait for the tiller to return to the CENTER position. 18. Apply Molykote P 37 to the set screw and install the nut clip and locknut. Tighten the locknut to the torque provided in Table 3. NOTE: Use either the 2 teeth or 3 teeth nut clip as best aligns with the clamping nut position. The clamping nut may require additional tightening to allow for nut clip installation. Figure 12: Nut clip and set screw locknut. 19. Repeat Steps on all four (4) pins assemblies. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

11 Return System to Normal Operating Conditions 20. Release the retract manual over ride on the centering cylinder control valve on the stabilizer manifold, and standby as the centering cylinders resume their normal operating position. 21. Hydraulically isolate the hull unit by closing the ball valve on the stabilizer manifold P port or pressure filter. Close accumulator ball valve if fitted. 22. Turn OFF the Fin Oscillation Simulator and disconnect it from the local control module (FCM or ECM). 23. Open the P port or pressure filter ball valve and accumulator ball valves. 24. Return the stabilizer controller to the desired operating mode. WI0020 Industriestraat HD Nuth The Netherlands Phone: Fax: of 11

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