AKRON NEW YORKER MULTIVERSAL NOZZLE

Transcription

1 TRAINING BULLETIN TOOLS 17 June, INTRODUCTION 1.1 This training bulletin is issued to govern the operation, use, and maintenance of the Akron New Yorker Multiversal Nozzle. 1.2 Information contained in this bulletin shall take precedence over information contained in the Manufacturer's Manual or on prior Department Orders The Akron New Yorker Multiversal Nozzle (Figure 1) has been referred to on prior Department Orders and in the Manufacturer's literature as the "Akron style 3420, Apollo Portable Monitor and Akron Ground Hugger." In order to standardize the identification of this appliance, only the name Akron New Yorker Multiversal Nozzle shall be used. Figure 1

2 Figure 2 To Fire 2. NOMENCLATURE AND IDENTIFICATION 2.1 Above is a diagram of the Akron New Yorker Multiversal Nozzle with it's parts labeled. A. Portable Ground Base - The base must be used if the Multiversal Nozzle is removed from the apparatus truck mount and operated in the portable position. B. Safety Chain - May be used in addition to a utility rope (see Section 3.3.4) to secure the Multiversal Nozzle when used in the portable ground base. C. Elevation Control Hand Wheel - Used to raise or lower the elevation of the Multiversal Nozzle. The range of elevation is from 90 degrees above the horizontal to 15 degrees below the horizontal. D. Safety Stoplock and Release Pin - Prevents lowering the elevation below 35 degrees above the horizontal unless the release pin is pulled. The release pin should be pulled before reaching 35 degrees. Note: The New Yorker Multiversal is designed with a safety stop at 35 degrees above horizontal to maintain stability when used in the portable base. Do not release the elevation stop and operate below that point unless the unit is secured in the truck mount fixture, or is securely restrained by ropes using the procedure outlined in Section No operation below the horizontal shall be attempted unless the unit is secured in the truck mount.

3 June, 1983 T. B. TOOLS 17 E. Horizontal Friction Lock - When tightened, holds the Multiversal Nozzle in a stationary position; if released, permits 180 degrees to be traversed horizontally. F. Locking Plunger - Moves into a recess in the portable ground base or the apparatus truck mount and secures the Multiversal Nozzle to the base or the mount. To remove the multiversal Nozzle from the truck or ground base, the locking plunger is pulled. G. Locking Plunger Retaining Latch Assembly (bright orange in color) - Prevents the locking plunger from disengaging and so guards against accidental release of the locking plunger while the appliance is being supplied with water. H. Carry Handle - Used to transport the Multiversal Nozzle to the point of portable operation. I. Stacked Tips 1 1/4" - 1 1/2" - 2". J. Siamese - Used to supply the Multiversal Nozzle through two three inch (3") clapper type swivels with F.D.N.Y. threads. K. Stream Shaper - Straightens the stream and increases reach. 3. PORTABLE OPERATION 3.1 Removal from Apparatus Two members shall be used to remove the Multiversal Nozzle from the apparatus and lower it to the ground The removal of the Multiversal Nozzle from the apparatus is achieved by, first, lifting the Locking Plunger Retaining Latch Assembly, thereby exposing the Locking Plunger. (See Figure 3A) The Locking Plunger is then pulled outward. When the Locking Plunger is pulled outward, the Multiversal Nozzle is then free to be lifted from the truck mount. (Figure 3B). Figure 3A Figure 3B 3

4 3.2 Transportation to Point of Operation Since the nozzle has a carry handle and is not heavy, only one member is required to carry it to the point of operation A second member should transport the portable ground base and a utility rope to the point of operation. 3.3 Procedure at Point of Operation The portable ground base should be placed at the point of operation with the front leg (leg with the safety chain attached) pointing toward the fire or desired point of operation. (Figure 2) The Multiversal Nozzle shall be held with the 2 inlets of the siamese facing directly to the rear and in line with the front leg of the portable ground base and with the locking plunger directly in line with the front leg. (Figure 2) After lifting the locking plunger retaining latch, as shown in Figure 3C, place the Multiversal Nozzle into its portable ground base, pushing down forcefully. (Figure 3D) As you do this, the lower end of the locking plunger automatically fits into a recess at the top of the ground base. Now drop the retaining latch over the head of the locking plunger, to its proper position. (Figure 3E) The retaining latch prevents the plunger from disengaging and so keeps the nozzle from separating from the ground base. Figure 3D Figure 3C Figure 3E

5 June, 1983 Figure 4A T. B. TOOLS 17 Figure T Handle Portable Ground Base Figure Figure After seating the Multiversal nozzle into its portable ground base, locate the notched stud protruding from the tapered post which is visible below the underside of the mount. (Figure 4C) Firmly seat the slide lock (Figure4A) on the stud. Make sure the "T" handle is up. (Figure 4D) Use the same procedure for seating the nozzle into the truck mount. (Figure 4E) Figure 4E Truck Mount To be used in conjunction with Figures 9A and 9B on page 9 5

6 Figure 5A Figure 5B A. To make certain that the nozzle is secure in the ground base, hold the base down with both your feet, putting them on two of its legs (one on each side of the base), and then try to lift the nozzle from the base (without pulling the plunger). Also check that the retaining latch is in position, with its locking swivel placed securely under the head of the locking plunger. (Figure 5A.) Check by pushing up on the retaining latch, being careful not to swivel it out of its proper position. (Figure 5B) To prevent backward movement of the Multiversal Nozzle, it must be secured in position by means of a utility rope, in the following manner: A. Place the middle of the rope on top of the siamese, over the identification plate. (Figure 6A) B. Bring the two sides of the rope under the siamese and up between the two inlets. (Figure 6B). C. Bring the two sides of the rope up over the siamese (Figure 6C) and bring each side forward to the large leg of the ground base on each side of the front leg. Make a half hitch on each of these two legs. Note that the hitch must be made as shown in Fig, 7A Figure 6A Figure 6B Figure 6C

7 June, 1983 T. B. TOOLS 17 Figure 7A Figure 7B Substantial Object D. Bring the rest of each end of the rope forward, and secure each end to a substantial object which is forward and at an angle to the nozzle, using a clove hitch and binder on the taut part of the rope. The ropes must be taut and all slack removed in order to secure the appliance in a fixed position. (Figure 7B). E. Remove all slack in the safety chain and secure it to a substantial object, if one is close enough. The safety chain alone should never be relied on to secure this appliance. A rope is needed. Note: Do not connect the hose lines to the siamese before tying the required knots, as this would greatly increase the time required to tie the knots. 7

8 3.4 Supplying the Multiversal Nozzle The supply inlets of the siamese are provided with two three inch (3") female swivels The use of two hose lines to supply the Multiversal Nozzle is recommended. When two hoses are used, bring them straight back a distance of 15 feet from the siamese, parallel to each other, before making any sharp bends or turns in the hose lines If only one hose line is used, bring it straight back for 15 feet before making any sharp bends or turns When the Multiversal Nozzle is being operated in the portable position, do not move the ground base or the 15 feet of supply hose that is closest to the unit, unless the water supply is shut down When used in the portable ground base, the unit should not be operated at more than 800 gallons per minute with any type of straight stream or Fog Tip. A. In order to avoid operating at more than 800 gallons per minute with straight stream tips, the following pressures shall not be exceeded: 1¼" tip - not more than 100 psi 1½" tip - not more than 70 psi 2" tip - not more than 50 psi Note: In regulating pressure, the gauge provided on the Multiversal Nozzle may be used as a guide When the supply lines feeding the Multiversal Nozzle are long, so that communication with the engine company chauffeur may be difficult, insert single gate one length from the nozzle. A member can be stationed at these gates to assure that proper pressures are maintained. 3.6 Taking Up. After each use, the spikes in the portable ground base shall be inspected. If the flats on the end of the spikes exceed 1/16" in diameter, the spikes must be sharpened or replaced in accordance with the instructions contained in the Manufacturer's Manual, which has been issued to units.

9 June, 1983 T. B. TOOLS INSTALLATION AND OPERATION IN THE TRUCK MOUNT 4.1 The apparatus truck mount is bolted to the apparatus. 4.2 Before installing the Multiversal in its mount, be sure the horizontal friction lock is tight enough to prevent horizontal movement. 4.3 The mount has 8 raised portions on its top (Figure 8A & 8B), which allows installation of the nozzle in 8 different positions. Figure 8A Figure 8B 4.4 There is a receptacle in the bottom of the Multiversal, on the underside of the siamese, directly opposite the locking plunger. (Figure 9A.) When installing the Multiversal in its truck mount, it is very important that one of the raised portions of the mount (Figure 8A) fit directly into the receptacle on the bottom of the siamese when the locking plunger retaining latch is pulled up and the nozzle is forcefully pushed down. (Figure 9B.) Now drop the retaining latch over the head of the locking plunger as shown in Figure 3D and Figure 3E Figure 9A Figure 9B 9

10 4.5 Check for proper installation Check that the retaining latch is in the proper position under the head of the locking plunger, as described in sec and shown in figures 5A and 5B Try to lift the Multiversal from its base without pulling the locking plunger Try to move the nozzle horizontally in both directions. Note: If the Multiversal can be lifted from its truck mount or there is horizontal movement, it is not properly installed. 4.6 It is mandatory that units make sure that the Multiversal is properly installed in the truck mount prior to starting water. 4.7 When operating the Multiversal Nozzle from its apparatus truck mount, a 50' length of hose should be used. This makes it easier to lift the nozzle from its base if it becomes necessary to cover an arc greater than 180 degrees. 4.8 Horizontal rotation is limited to 180 degrees in any one of the 8 different positions, as noted in Sec In order to rotate the nozzle beyond 180 degrees it is necessary to reposition the multiversal nozzle in its base When it becomes necessary to reposition the Multiversal Nozzle in its base, water supply shall be shut down before the nozzle is repositioned. Be certain that the nozzle is properly installed and checked as described in Section 4 of this bulletin before water is restarted. 4.9 When the unit is stored in the truck mount, it is recommended that during transportation, the nozzle or tip be lowered against a rigid support, or else removed. 5. OPERATING LIMITATIONS 5.1 In the portable position, the horizontal rotation of the nozzle is limited to 90 degrees in each direction from the straight-ahead position. 5.2 When the Multiversal is installed in the truck mount, the vertical range of the nozzle is from 15 degrees below the horizontal to 90 degrees above the horizontal There is a safety stop at 35 degrees above the horizontal. If it is necessary to operate below 35 degrees, release the safety stop by pulling up the release pin before reaching 35 degrees. This will result in a smooth operation and prevent the mechanism from jamming against the safety stop pin. See nomenclature letter D.

11 June, 1983 T. B. TOOLS While being operated in the portable position, the Multiversal Nozzle must be restrained by ropes as outlined in Section MAINTENANCE 6.1 Routine maintenance shall be conducted quarterly, following the maintenance instructions in the Manufacturer's Manual, which has been issued to units. 7. PRECAUTIONS 7.1 The Akron New Yorker Multiversal Nozzle shall never be operated in the portable position unless it is secured in the portable ground base and secured by using the prescribed knots, as shown in Figure 6 and 7, See Paragraph Whether it is being operated in the portable position, or from the apparatus, always be sure that the locking plunger, which secures the nozzle to its base, is fully seated. Test it by (1) trying to lift the nozzle from its base and (2) by trying to raise the retaining latch that holds the locking plunger in position, being careful not to swivel it out of it's proper position. (Figures 5A and 5B.) If the nozzle can be lifted out of its base or if the retaining latch is not in the proper position (Figure 5A), the nozzle is not properly secured in the base. 7.3 If for any reason units are unable to secure the Multiversal Nozzle in the portable ground base or the apparatus truck mount, the Multiversal shall be taken out of service and the Repairs and Transportation Unit shall be notified. 7.4 After supplying water to the Multiversal Nozzle, whether in the apparatus truck mount or in the portable ground base, units shall always make sure that the entire appliance is fully drained. This is especially important after operating in below freezing temperature because extensive damage can occur if water freezes in the unit To thoroughly drain the appliance, it is necessary to turn it upside down. 7.5 The maximum pressure to which any part of this appliance should be subjected is 200 psi. 11