Vacuum Maintenance Manual (EXCERPT Tim Benedict)

Transcription

1 1. Position a ladder, scaffold, or work stand, on the right side of Vacuum Skid where the blower motors are installed. 2. Locate the six (6) vacuum hoses connecting the blower motors to the HEPA housings (Figure 117). Figure 117. Vacuum Hose Blower to HEPA Housing 3. Loosen nuts (1, Figure 118) on each of the twelve (12) hose clamps (2) found at either end of hose with open end wrench. 4. Pry hose (3, Figure 118 ) from the collar of the attached elbows and set aside for reassembly. 115

2 3 1 Figure 118. HEPA Vacuum Hose Clamps 2 5. Elbow (1, Figure 119) is attached to HEPA housing number 2 and elbow (2) is attached to HEPA housing number 5. Note the difference in orientation of these two elbow joints for proper reassembly. Remove four (4) bolts (3) on each elbow Figure 119. HEPA Housing Elbows 6. Remove nut and bolt combination located on outside of HEPA housing number 1 (1, Figure 120) and HEPA housing number 5 (2). 116

3 1 2 Figure 120. HEPA Assembly Bolted To Frame 7. Install lifting lugs on top of HEPA assembly numbers 1 and 5 if not in place (Figure 121). 8. Attach lift rigging to lifting lugs. Figure 121. HEPA Assembly Rigging 117

4 9. Apply slight lift to assembly in order to remove pressure on pins that secure bottom of assembly. Pins are found on either side of HEPA housing number 4 (Figure 122). Figure 122. Pin Secures Bottom Of HEPA Assembly 10. Apply pressure to center of pins with thumb and pull back to release. 11. Lift HEPA assembly straight up while observing proper clearances. Reverse procedure to reinstall HEPA assembly Replace Air Cleaner Element 1. Remove end cap wing nut and washer (1 and 2, Figure 123) from end cap (3). (Door 6) 118

5 Figure 123. Air Filter End Cap Mounting 2. Remove end cap (2, Figure 124) from housing (1). Figure 124. Removing Filter End Cap 3. Remove wing nut and bolt (3, Figure 125) holding air filter cover plate (2) to housing (1). 119

6 Figure 125. Filter Securing Wing Nut 4. Gently pull filter element (2, Figure 126) from the housing (1) and set it aside. Figure 126. Removing Filter Element 5. Clean inside filter housing (1, Figure 127). Wipe with a clean, damp cloth to remove dust and dirt. 120

7 Figure 127. Inside Filter Housing 6. Gently slide new filter element into housing. 7. Replace filter cover plate (3, Figure 125) and Secure filter with wing nut and bolt (3). 8. Replace end cap (3, Figure 123) and secure with wing nut and washer (2 and 1) Replace Ingersoll Rand Winch Wire Rope Ensure wire rope diameter provides an adequate safety factor. Minimum diameter is 5 mm (3/16 inch). Maximum diameter is 10 mm (3/8 inch). Maximum wire rope diameter is limited by size of wire rope anchor hole in drum. Always use gloves when handling wire rope. Never use wire rope that is frayed or kinked. Ensure first layer of wire rope is tight. Avoid injury from lifting heavy weights. Winch housing weights about 23 kg (50 lb). Use handles to lift, or get another person to help. 121

8 Install wire rope on drum in an overwind position (so it feeds from top of drum, not bottom). After installation, maintain at least three (3) wraps of wire rope on drum at all times. Use 8 mm (5/16 inch) wire rope. Maximum length Is 25 m (82 feet). 1. Cut wire rope to length. 2. Fuse wire rope ends together to prevent fraying. 3. Feed fused end of wire rope (2, Figure 128) over and around drum on winch base (3), into anchor hole in drum and under anchor setscrew (1) then almost against inside of drum. 4. Tighten setscrew (1). Setscrew must be below the drum surface when tightened to ensure even winding of the wire rope on the drum. 122

9 5. Wind wire rope on drum. Keep tension on wire rope while winding. Make sure first wrap of wire rope is flush against drum flange. Maintain a slight angle to ensue even winding. Figure 128. Winding Wire Rope on Drum Adjust Winch Drive Belt Tension Disconnect load before servicing winch. Falling loads could cause death, injury or property damage. Winch Motors can only be operated when the generator is running. Accidental operation could cause injury. Apply Out OF SERVICE FOR REPAIRS tag on winch controls. Avoid injury from lifting heavy weights. Winch housing weighs about 23 kg (50 lb). Use handles to lift, or get another person to help. 123

10 6. Remove screw from each corner of the winch housing cover to gain access (Figure 129). Figure 129. Winch Housing 7. At mid point between sheaves (2, Figure 130), apply a downward pressure on the belt (3) with your thumb (1). There should be about 3 mm (1/8 inch) deflection. A more accurate reading might be obtained by placing a straight edge on top of drive belt spanning both sheaves, applying a downward pressure on the belt, then measuring deflection from the bottom of the straight edge. 124

11 Figure 130. Checking Belt Tension Do not over tighten mounting bolts. Special 13 mm (½ inch) Flex Gear Wrench (Figure 132) is needed for bottom two (2) motor mounting bolts. Use is shown in Figure 133. Flip over to change rotation. 8. Adjust tension if needed. Loosen four (4) nuts on motor mounting bolts (1, Figure 131), then slide winch motor up or down to increase or decrease tension. Tighten motor mounting bolts when done. Upper two (2) bolts (Figure 131). Lower (Figure 133). 125

12 Figure 131. Adjusting Winch Drive Belt Figure 132. Flex Gear Wrench Figure 133. Lower Motor Mounting Bolts 9. Repeat Steps 2, and 3, if needed. 126

13 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE Figure 18. Side View Camera Cover 4. Remove four (4) screws/nuts (3, Figure 19) holding camera (1) to mount (2). Remove camera. Figure 19. Camera Mounting 5. Install new camera in base with four (4) screws/nuts (Figure 19). 6. Plug cable to CAT 5 coupler (Figure 16). 7. Advise Control Room Operator that installation is complete and camera is ready for adjustment. 8. Adjust camera position, as directed by Control Room Operator, using special adjusting tool (2, Figure 20) placed over camera lens (1). Revision 02D September 2014

14 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE Figure 20. Adjusting Lens Position 9. Replace cover (2, Figure 17) and secure with two (2) pin star screws (1) Replace Point/Tilt/Zoom (PTZ) Camera Each Blade MOOSE camera has been assigned specific network IP address. A control room network technician must program this address and configure the camera for proper video operation prior to installation. See Appendix D of Control System manual. Revision 02D September 2014

15 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE 1. Loosen three (3) mounting screws (1, Figure 21) holding camera (3) to mounting bracket (2). Use the supplied T30 star socket and ¼ ratchet driver (4) Figure 21. PTZ Camera Mounting 3. Turn camera and sun shield (4, Figure 22) clockwise (CW when viewed form above) to release it from mounting bracket (1). Camera supported by Lanyard (2) and clip (3) so it will not fall. Alignment pins (5) are exposed Figure 22. PTZ Camera Lanyard 4. Remove connector by pulling up on outer case (1, Figure 23) from camera (3). Revision 02D September 2014

16 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE 1 Figure 23. PTZ Camera Connection 5. Lift camera and sun shield (4, Figure 22) to remove clip (3) from lanyard (2). 6. Discard old camera and sun shield (Figure 24). Figure 24. PTZ Camera and Sun Shield 7. Attach clip (3, Figure 22) of new camera and sun shield to lanyard (2). 8. Connect cable (1, Figure 23) to new camera. 9. Insert alignment pins (5, Figure 22) of new camera into mounting bracket (1) and turn counterclockwise (CCW). 10. Tighten three (3) mounting screws (1,Figure 21) in mounting bracket (2) with supplied star socket and ¼ ratchet driver(4). 11. Advise Control Room Operator installation is complete. Revision 02D September 2014

17 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE Remove Blade and Clamshell 12. Control technician sets presets per Control Manual. If Clamshell and/or Blade is to be repaired or replaced, it is recommended that both be removed together, decontaminated, and further service be performed in maintenance shop. The following procedure outlines the best method for removal. 1. Request control room operator lower blade to ground or to blocking. 2. Request Control Room Operator to disable Blade MOOSE movement 3. Disconnect Blade hydraulic lines via two quick disconnect fittings (1, 2, Figure 25 ). Place a rag underneath fittings to absorb a drop that may fall from the fittings as the automatic internal valve engages. 1 2 Figure 25. Hydraulic Quick Disconnect Fittings 4. Remove the eight (8) ½ 20 x 1 inch long hex head cap screws (2, Figure 28) holding blade mounting bolts to yoke arms (1). There are four (4) bolts per side. Revision 02D September 2014

18 Maintenance Manual (EXCERPT Tim Benedict) Section 3 Blade MOOSE Replace Clamshell Figure 26. Remove Blade/Clamshell at Yoke 5. Request Control Room Operator lift yoke. 6. Request Control Room Operator to disable Blade MOOSE movement 7. Remove Blade/Clamshell assembly from, Blade MOOSE. 8. Following Service, position (align) Blade/Clamshell assembly for mounting on yoke arms. Request Control Room Operator move yoke, if needed. 9. Replace eight (8) blade mounting bolts. 10. Request that control room operator raise and lower blade and clamshell to test operation. The following procedure assumes that Blade/Clamshell assembly has been removed from MOOSE as above. Clamshell is held to blade with four (4) pins, two (2) pins, on each side, all secured with clips. 1. Remove spring clips from both sides of mounting pins (1 and 2, Figure 27), using neck ring pliers. Revision 02D September 2014