OP-769 16" Three Gun Turrets Part 2 - Personal Page of GENE ...

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3. Remove the plunger cover. 4. Secure C-clamps to the guide ralls just to the rear of the plunger yoke. 5. Remove air valve cap Z and plug X. 6. Open air valve Z and completely bleed the recuperator air pressure. NOTE: It is not necessary to drain the liquid from the differential cylinder. Tbe position of tbe packing lead is such that only the liquid in the packing will be lost. 7. Remove the locking pin from the yoke, one plunge r only. 8. Remove the 12 stud nuts and lock washers from the cylinder gland and slide the gland forward. 9. Place a wood block and pad beneath the plunger in front of the cylinder. 10. Loosen the plunger from the yoke and withdraw it sufficiently t o remove the gland. 11. Refer to drawing 236064. Slide the plunger rearward sufficiently to assemble the connecting rod (236064-4) and the rail fixture (236064-2), with the eye nut (236064-7) on the forward end of the connecting rod, and with the stop rod (236064-6) and nut seated in the rail fixture. Attach a sheave to the yoke (use eye bolt in the plunger yoke seat). Reeve a line through the sheave and attach to the eye nut. Snub the line at the projectile holst cradle. SLIDES 12. Slide the plunger into the cylinder until the stop rod contacts the cylinder face. 13. Remove packing elements to a position on the connecting rod. 14. Draw the plunger forward until the eye nut is at the sheave. 15. Install a wood block under the forward end of the plunger. 16. Remove the eye nut and rail fixture . 17. Remove the old packing from the connecting rod and replace with new packing chevrons and gland. 18. Reassemble rail fixture and eye nut and remove the wood block. 19. Install the packIng in the cylinder and secure the gland. Do not move the plunger. 20. Remove rail fixture, connecting rod, sheave, and line. Support the plunger forward end until it is seated and secured in the plunger yoke. 21. Recharge the recuperator air pressure and replenish the differential cylinder liquid in accordance with the routines outlined in "Servlchlg the counterrecoil system" of this chapter. 22. Remove the C-clamps and replace the plunger cover. 4-17
The gun elevating equipments installed in each turret are three independent elevating gear assemblies. They are designated 16-inch E levating Gear Mk 5 Mod 0 for the right gun, 16-inch Elevating Gear Mk 5 Mod 1 for the center gun, and 16 -inch E levating Gear Mk 5 Mod 2 for the left gun. The three assemblies are identically power ed and cont rolled and differ only as to position and arrangeme nt of components. A typical elevating gear installation is illustr ated in figure 5-1. The elevating gear assemblies control and operate the gun laying movements of t he three gun s lides. T hese assemblies elevate and depr ess the guns thr ough 47 -degree a r co in tur rets I a nd m, and 45degr ee arcs in tur ret n. The a rcs are limited by stops at 45 degrees elevation in all turr ets, at 2 degrees depression in turrets I and m, and zero degrees depression in turret n. 16- inch Elevating Gear Mk 5 is an electric-hydr aulic machine with an elevating-s c r ew and oscillating-bearing type of final drive. The independent s elector fo r each gun permits selection of control of gun laying from a remote control station or hand control of gun laying from a local pOinter's station. The m ethod of gun elevation control is s e lected by the gun layer by positioning a control selector that is m ounted on the bulkhead adjacent to his station. Aut omatic pOSitioning of the gun at five degrees elevation for loading and r eturn of the gun to automatic control is provided by a switch at the gun captain's station. Each elevating gear comprises a power dr ive, an elevating screw and oscillating bearing, and cont r ol mechanisms which include 16-inch Receiver Regulator Mk 10 Mod O. Component locations (fig. 5- 1) are Similar for the thr ee tur ret assemblies; all are located forward and below the r es pective gun pock ets , in the pan floor and electric deck spaces, except for certain cont r ols. The motor contr ollers are located in the upper projectile handling deck machinery space. The ON-OFF push-button control is at the gun layer's station. The powe r drive is an electrically driven hydraulic tx:ans mission that drives the elevat ing screw through the oscillating bearing to elevate and depress the gun at maximum aver age rate of 12 degrees per second. The arr angement of the mechanical comp one nts of the elevating gear with respect t o the p ower drive is s hown in figur e 5- 2. In automatic control, the r eceive r-regulator receives gun elevation or der elect r ically fr om the remote control station. Actual gun elevation is automatically transmitted to the r eceive r -regulator Chapter 5 E LEVATlNG GEAR 16-inch Elevating Gear Mark 5, Mods 0, 1, and 2 l6-inch Elevating Receiver Regulator Mark 10 Mod 0 GENERAL DESCRIPTION through a mechanical response gear. A diff erence between elevation or der and actual elevation results in movement of the A-end tilting box (fig. 5-2), through a hydraulic control valve and the s ervo pis ton. The amount of tilt, determined by the gun position "error, " regulates the speed of the B-end as it drives t he elevating screw. "Follow-up" contr ol is provided by s hafting and gearing that feed B-end r e sponse back to t he r eceiver-regulator and to the Aend tilting box to retur n it to neutral. Control is entirely automatic; no action by turret personnel is r equired. In hand cont rol, the gun layer's handwheels are m echanically connected (through shafts, gear s , and a clutch) to a hydraulic directional valve, which ports servo pres sure to the servo piston. Movement of the handwheels moves the A-end tilting box thr ough the directional valve and the servo piston. The Bend elevates or depresses the gun at a rate corres ponding to the direction and speed of handwheel motion. Response is mechanically fed back to the A-end tilting box to r etu r n it to neutral. Because of this fo llow-up action, the gun will continue to move (within its limits) only as long as the handwheels are turned. In automatic loading control, a loading valve in the r eceiver-regulator controls hydraulic flow to the servo cylinde r t o bring the gun automatically to five degrees elevation for loading. Design differences The r ight - and center-gun elevating gears are identical, with the exception of some hydraulic pipes and the positions of certain par ts. In the cente r gun installation, the electric motor is located farther away fr om the A- end. The response gear s l'urlting is rearranged to conform to the offset-from - center installation of the center-gun elevating gear. The left-gun elevating gear differs from the right and center insta llations as follows: The B-end is mounted in the opposite way from the like units of the right and center installations; the hydraulic pipes are rearranged t o confor m to this mounting. The arrangement of the response gear is similar to that of the right gun. Elevating gear data. Gun moveme nt limits Maximum elevation, deg .. . . . . . ...... . . . 45 Maximum depr ess ion, deg . . . .. . . . . .... . -2 Maximum depression (turret n), deg. .... 0 Loading position, deg. .... . ... ... . . . .... 5 Speed, maximum gun laying, deg per sec. . 12 5-1
Page 1 and 2: CHAPTER 1 - GENERAL DESCRIPTION OF
Page 5: Flanged pipe fitting •......•.
Page 9: 12. Wipe the excess oil from the gu
Page 14: 9. Mount the breech opening buffer
Page 17: side of the gun slide . The deck lu
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Page 26: Always lubricate the gun slide line
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Page 47 and 48: Roller path and erosion cor r ectio
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1. Move the gun order signal s lowl
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OP 769 16 INCH THREE GUN T URRETS T
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OP 769 16 INCH THREE GUN TURRETS Th
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OP 76\J 16 I NCH T HREE G UN TURRET
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Starting Perform the following oper
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O P 7G 16 INCH THREE GUN TURRETS 4.
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OP 769 16 INCH THREE GUN TURRETS 2.
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OP 769 To adjust the main relief va
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OP-769 16" Three Gun Turrets Part 2 - Personal Page of GENE ...

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