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Night Scan Chief

 

CHAPTER 4  

MAINTENANCE AND SERVICE INSTRUCTIONS 

4.1   INTRODUCTION 

This section of the manual describes routine maintenance procedures and covers general service 
information.  Refer to Chapter 5 for exploded views of the Night Scan Chief and the accompanying Tables 
with item descriptions and part numbers, which may be used for ordering replacement parts. 

4.2   SCHEDULED MAINTENANCE 

   Cleaning and Lubrication - Mast   

Will-Burt pneumatic telescoping masts should be cleaned and lubricated on a regular basis to insure 
smooth operation and to prolong useful life. This maintenance should be performed typically about once a 
month depending upon local environmental conditions and frequency of use. Signs that cleaning and 
lubrication are needed can be: 

 

A noticeable gritty film on the exterior surfaces of the mast sections  

 

Erratic extension or retraction of the mast  

 

Noisy operation of the mast  

 

Sticking of one or more mast sections when mast is extending or retracting  

 

A pneumatic telescoping mast is a pressure vessel. 

Caution must be exercised to stay clear when the mast 

is being extended. Do not lean directly over the mast. 

Proper eye protection should be worn when working on 

the mast.

 

PROCEDURE: 

1.  One person operating hand held remote control should slowly pressurize the mast just enough to 

extend the top mast section. Another person may need to hold down the larger mast section 
collars to assure the proper sequence of extension. Release “Mast Up” button as soon as the 
mast section is up. 

2.  Wipe down the extended mast section using a non-abrasive cleanser or solvent such as lacquer 

thinner. Do not allow the cleaning fluid or solvent to run down inside the collar. 

3.  Repeat steps 2 and 3 for the next larger mast section. 

4.  Inject approximately 1/2 oz. of TMD Mast Lubricant* or a lightweight machine oil into the weep 

hole (drain) of the exposed mast section. The weep holes are located approximately 10 inches 
below the collar on each tube except the top one. 

5.  Repeat steps 2, 3 and 5 for each of the remaining mast sections.  

Revision 1 

 

4-1 

Summary of Contents for Night Scan Chief

Page 1: ...Night Scan Chief NIGHT SCAN CHIEF INSTALLATION OPERATION MAINTENANCE MANUAL The Will Burt Company 169 S Main Street Orrville OH 44667 www willburt com Revision 1 December 2007 Revision 1 i ...

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Page 3: ...EPRESENTATIVE IS AUTHORIZED TO CHANGE THIS WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY ON BEHALF OF MANUFACTURER Claims for defects in material and workmanship shall be made in writing to Manufacturer within thirty 30 days of the discovery of defect Failure to provide notice as required hereby shall be conclusive evidence that the product was in conformity with the warranty and the Manufacture...

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Page 5: ...g the Warning Light 2 6 2 10 MULTIPLEX SYSTEMS OPERATING AT 24 VOLTS 2 6 2 11 Pre operational Check 2 6 3 OPERATING INSTRUCTIONS 3 1 3 1 Theory of Operation Mechanical 3 2 3 2 Theory of Operation Electrical 3 3 3 3 Push Pull Switch NFPA INSTALLATIONS 3 3 3 4 Push Pull Switch non NFPA INSTALLATIONS 3 4 3 5 Remote Controls Hand held 3 4 3 6 Raising the Mast 3 5 3 7 Aiming the Remote Control Position...

Page 6: ... Figure 4 5 DIP switch location Chief RCP board 4 6 Figure 4 6 NFPA Handheld Remote Wiring 4 7 Figure 4 7 Non NFPA Hand Held Remote Wiring 4 7 Figure 4 8 Night Scan Chief Base Wiring 4 8 Figure 4 9 Night Scan Chief Remote Control Positioner RCP Schematic 4 9 Figure 5 1 Exploded View Base Left Side 5 2 Figure 5 2 Base Right Side 5 3 Figure 5 3 Exploded View Mast Pivot Assembly 5 3 Figure 5 4 Explod...

Page 7: ...nted sources of electricity Do not operate mast in lightning Be certain electrical cables are undamaged and properly terminated Always disconnect power before performing service repair or test operations Safety Instruction Read Manual Failure to follow operating instructions could result in death or serious injury Read and understand the operator s manual before using the mast Tip Over Hazard Mast...

Page 8: ...azard Relocating the mast during operation or after extension could result in death or serious injury Do not relocate the mast during operation or while extended This applies especially to masts mounted to vehicles Operate the mast only if the vehicle is stationary and the vehicle engine is off Mast Extension Hazard Extending mast into obstructions could result in death or serious injury and could...

Page 9: ...nsure control cables are not tangled and are free to pay out as mast is extended Safety Instruction Installation At all times while using pipe and hose during installation recognize that 1 Pipe and hose should be routed mounted and restrained to protect from damage 2 Do not use second hand piping for installation 3 Do not bend air pipe and hose at a radius less than specified by the manufacturer 4...

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Page 11: ...ht Scan Chief is a transportable lighting system consisting of a directionally adjustable group of lights attached to a self erecting extensible mast Air pressure required to extend the mast is provided by a compressor unit mounted within the Night Scan Chief The unit is designed for installation on any vehicle for the purpose of providing on the scene temporary lighting Refer to Figure 1 1 for id...

Page 12: ... psi 20 psi 20 psi 20 psi 20 psi Required DC Electrical Power Supply 12V 20 amp 24V 10 amp 12V 20 amp 24V 10 amp 12V 20 amp 24V 10 amp 12V 20 amp 24V 10 amp 12V 20 amp 24V 10 amp 12V 20 amp 24V 10 amp Required Electrical Supply for Lights 12V 12 amp 24V 6 amp 12V 25 amp 24V 13 amp 220V 10 amp 220V 15 amp 220V 25 amp 220V 30 amp Maximum dimension is the largest dimension on all specified models Wei...

Page 13: ...y mounted to a sturdy platform which will not overturn during operational loading of the mast Figure 1 2 provides loading information for the mast which can be expected during operation All values given are in lbs 35 200 200 575 575 Figure 1 2 Mast Loads Revision 1 1 1 ...

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Page 15: ...ally by a competent person according to the Lifting Operations and Lift Equipment Regulations 1998 Equivalent regulations exist in other EU states 2 1 INTRODUCTION The Chief has been designed to provide for ease of installation This section of the manual provides the procedures that must be followed to insure a successful installation Be sure to read and understand the entire installation procedur...

Page 16: ...erse environmental conditions it cannot be submerged The mounting holes provided on the unit are 9 16 inches in diameter There are four holes in the base plate and two holes in the RCP saddle Studs or bolts not provided shall be located on the vehicle in accordance with Figure 2 2 It is important that the surface be flat such that the saddle and base plate are in the same plane The areas to which ...

Page 17: ...ion box also serves as a location to which DC power is routed by the installer for the unit It may be flush or surface mounted Hardware for mounting is not supplied PUSH PULL SWITCH HHRC CONNECTOR JUNCTION BOX ENCLOSURE CORD GRIP FOR DC CONTROL CABLE TO NIGHT SCAN HOLES PROVIDED FOR OPTIONAL FLUSH MOUNTING KNOCK OUT Figure 2 3 Standard Junction Box Flush Mounting For a flush mount installation fou...

Page 18: ...ber 9001SKR8RH25 should be used Other manufacturers of Industrial Control Pilot Devices should have equivalent switches This switch is available as part of a pre wired kit part 913316 for NFPA or part 4204201 for non NFPA installations from Will Burt Refer to the schematics in section 4 4 for wiring detail 2 6 CONNECTING THE REMOTE CONTROL S Hand Held Remote Control HHRC In the event that the acce...

Page 19: ...res and is available on pins J4 8 and 9 Please refer to the schematics in section 4 4 Its usage is at the discretion of the integrator It can be used in conjunction with a customer supplied relay to drive a flashing warning light refer to Figure 2 6 2 8 CONNECTING INTERLOCK INPUT CONTACTS OPTIONAL Some customers may require preventing operation of the Chief unless other conditions are first met An...

Page 20: ...o the 12 vdc motors is the system As a result of this starting and stopping voltage might be fed back through the power wires and into the power supply In some instances this may lead to unexpected behavior in a multiplex system In order to mitigate this back feeding of voltage an 820uF capacitor Will Burt Part Number 204001 can be placed across the positive and negative input terminals TB3 5 and ...

Page 21: ...f be sure that there are no overhead obstructions and that there are no power lines within 20 feet of the mast Visually inspect the unit for any damage If damage is apparent do not use the mast Have it serviced prior to use Check for any objects which might obstruct motion of the mast or cause binding Remove any material that may hinder mast function ...

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Page 23: ...ric Code Do not use in the presence of flammable gases or liquids such as paint gasoline or solvents Do not use in areas of limited ventilation or where high ambient temperatures are present Contact with combustible materials can cause ignition resulting in fire or explosion Before operating make certain that the area is free of overhead power lines and other unwanted sources of electricity Be sur...

Page 24: ...from a magnetic switch that the mast has fully retracted and may be safely restored to its fully nested horizontal position If the double click unattended stow sequence was not used the RCP will begin the autostow sequence to insure that the RCP is properly positioned for engagement with the saddle If the autostow double click sequence was used the RCP will have properly positioned itself as the m...

Page 25: ... contact will be open Even if the emergency stop feature is used prior to the mast completely stowing the contact will still remain open If the Night Scan has been stopped using the emergency stop button or by some other interruption of power the initiate circuit will need to be activated again in order to continue operation When stowing the mast to horizontal position the control monitors the cur...

Page 26: ...ator Secondly it functions as an emergency stop when the switch operator is pushed all the way in When using Will Burt s accessory kit push pull switch accidental initiating is extremely unlikely since it would require pulling the switch button The Push portion of the Push Pull switch functions as an Emergency Stop If it is pushed the mast will immediately be disconnected from power and stop It sh...

Page 27: ...momentarily to turn the desired lights on and off Press the Mast Down button until the mast has completely stowed Note In the Night Scan Chief during the process of raising the mast the mast will first be inclined to a position perpendicular to its mounting surface by an actuator Once the control senses it is in this position air pressure will be applied to the tube sections to raise the mast furt...

Page 28: ...extend unexpectedly 3 9 EMERGENCY STOW LOSS OF POWER Make sure all power has been disconnected from the Night Scan prior to manually lowering mast Make sure lights have cooled completely before manually panning or tilting the RCP In the event of power loss or an unrecoverable error condition the Night Scan Chief will automatically exhaust all air and nest However the mast will NOT return to its fu...

Page 29: ...Night Scan Chief Revision 1 3 7 COVER SCREWS PIN E CLIP RIGHT SIDE COVER KNURLED PIN Figure 3 3 Cover and Screw Removal for Manual Stow Night Scan Chief only ...

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Page 31: ...e mast sections when mast is extending or retracting A pneumatic telescoping mast is a pressure vessel Caution must be exercised to stay clear when the mast is being extended Do not lean directly over the mast Proper eye protection should be worn when working on the mast PROCEDURE 1 One person operating hand held remote control should slowly pressurize the mast just enough to extend the top mast s...

Page 32: ...es of the lights should be cleaned using standard glass cleaner and a soft towel 4 3 ADJUSTMENTS Adjusting the 90º Proximity Switch The proximity switch sensor is intended to stop the actuator when the mast is at 90 degrees when being raised It senses the magnet that is threaded into the clevis and signals the base circuit board to cut power when the actuator is in the correct position In the even...

Page 33: ...ecking that the mast is plumb each time Adjust the switch if necessary 8 Replace cover GAP UPPER JAM NUT LOWER JAM NUT MAST 90 PROX SWITCH PROX SWITCH MAGNET Figure 4 1 Proximity Switch Adjustment S2 Figure 4 2 LED Location and Function Revision 1 4 3 ...

Page 34: ...h the lights in home position Home position is established by setting small flags in the RCP that engage photo interrupters on the RCP board It orients the lights such that the light bars are parallel to the axis of the mast and are facing downward when nested On all models the RCP shafts should contact the saddle simultaneously during nesting when correctly set It should be noted that having the ...

Page 35: ... set appropriately to determine operational mode This takes the place of setting the operational mode through software by changing a variable To set the operational mode for the Base board locate the DIP switch S2 see Figure 4 4 and set the DIP switch as follows Position 1 DO NOT CLOSE Position 2 Close if the system is a non NFPA compliant installation Position 3 Close if the system does not have ...

Page 36: ... for the RCP board locate the DIP switch S1 see Figure 4 5 and set the DIP switch as follows Position 1 Close to cause the RCP to self stow if there is an error Position 2 DO NOT CLOSE Position 3 DO NOT CLOSE Position 4 DO NOT CLOSE J4 Figure 4 5 DIP switch location Chief RCP board Revision 1 4 6 ...

Page 37: ...ED PAIRS BLU BRN 4032504 16 FT CABLE 4032505 30 FT CABLE 4032506 50 FT CABLE BLK RED TB3 Figure 4 6 NFPA Handheld Remote Wiring J1 TO HHRC WHT BLK RED BLK A B C D E F G H J K L GRN GRY VIO 18 GA 20 GA TWISTED PAIRS BLK RED init kill com BATTERY 10 GA BATTERY 10 GA BRN BLU BLK WHT BLK RED GRY VIO GRN J4 18 GA 20 GA TWISTED PAIRS BLU BRN 4032504 16 FT CABLE 4032505 30 FT CABLE 4032506 50 FT CABLE BL...

Page 38: ... J2 J2 TB1 TB2 BASE 18 GA 20 GA TWISTED PAIRS SHIELD VALVE GND GND GND ANTENNA S3 BLK RED BLK 1 WHT 2 BLK 2 WHT 1 INCLINATION MOTOR AIR COMPRESSOR TB3 4206101 CABLE CUSTOMER SUPPLIED S2 MAST 90 BLU BRN 10 GA WHT BLK WHT RED BEEPER _ M M BRN BLU ORG BLK 4032504 16 FT CABLE 4032505 30 FT CABLE 4032506 50 FT CABLE TO RCP O JUNCTION BOX J4 WITH NO J BOX APPLICATIONS REMOVE JUMPER IF PARKING BRAKE INTE...

Page 39: ...GHTS RED WHT GRN YEL GRN YEL WHT RED TO LEFT LIGHTS OPTIONAL STROBE J1 J1 J4 TB1 RCP PAN TILT S1 POINTERS HOME POSITION 8 YEL GRN 7 10 9 YEL GRN 5 6 3 4 TO RIGHT LIGHTS RED BLK BLK RED TO LEFT LIGHTS DC LIGHTS AC LIGHTS TO MAST Figure 4 9 Night Scan Chief Remote Control Positioner RCP Schematic Revision 1 4 9 ...

Page 40: ...7 then the LED would flash three times pause flash seven times pause longer and the repeat the flash sequence During normal operation the LED should flash a slow steady on off pattern The codes are as follows 4 5 1 1 Base Board The Base board is located in the base of the mast and is assigned unit number one 1 The Base board may generate the messages of Table 4 1 Table 4 1 List of Base Board Fault...

Page 41: ...20 000 cycles which is unlikely to happen Replace the base board Err 1 11 Saddle Location The internal linear actuator limit switch has opened before preload occurred The saddle is too low with respect to the Chief base Shim the saddle up as needed Refer to section 2 4 for flatness requirement Err 1 12 Actuator 90 Proximity Switch Disagreement The proximity switch sensing the mast actuator at 90 h...

Page 42: ...ematics in section 4 4 Err 1 14 Mast Down Magnetic Switch Disagreement The magnetic switch sensing the mast is lowered referring to tube set has conflicting complementary outputs There may be a wiring problem or a defective proximity switch Check the voltages at J3 pins 5 and 7 with respect to pin 6 These two voltages should be opposite of each other as the magnetic switch is activated and inactiv...

Page 43: ...Switch Wiring Error The proximity switch sensing the mast actuator at almost nested position appears to have its complimentary outputs wired backwards This check is only made at power up when the mast thinks it is nested The black and brown wires on the proximity switch may need to be swapped The proximity switch not being energized could also cause it Place a magnet close to the switch to check b...

Page 44: ...t cloth If this does not get rid of the fault replace RCP board Err 2 02 Tilt Stuck The state of the tilt photosensor has not changed even though the motor has been told to move for some period of time Something is preventing movement of tilt mechanism or the motor is defective Check to see if voltage is being applied to the tilt motor If it is replace the gearmotor Otherwise the problem is in the...

Page 45: ...nsor is linear or defective Check to make sure the tilt flag is not located in between the two photosensors If it is slowly move the left light bank by hand with power off until it is in the proper position Readjustment of the flag may be necessary to set the proper home position If the flag is not in between replace the RCP board Err 2 10 Tilt Down Limit The tilt up photosensor was made before th...

Page 46: ...r was made before the left photosensor indicating wrap around or the left photosensor is linear or defective Check to make sure the pan flag is not located in between the two photosensors If it is slowly move the RCP head by hand with power off until it is in the proper position Readjustment of the flag may be necessary to set the proper home position If the flag is not in between replace the RCP ...

Page 47: ...rom the base board recently Bad or improper connection in communications link or Remote Control is not properly powered Check continuity of the data lines from the DC power cable connector to the Remote Control connector Refer to system schematics in section 4 4 Check to make sure that the base board software is 2 6 or newer Refer to section 0 on how to check software revision level Also check tha...

Page 48: ...ber is a two digit number indicating the warning Warning codes differ from Fault codes in that they do not require clearing If the condition causing the warning goes away so does the warning At that point normal operation continues The codes are as follows Table 4 4 List of Warning Codes Message Meaning Root Issue Potential Causes WRN 1 04 Lookup Light The output driving the Lookup light does not ...

Page 49: ... wound tight Reset home position Pan or tilt motor will not respond with no errors displayed on Remote Control s Broken or loose motor wire lead or faulty motor 1 Reconnect wire lead 2 Replace motor Mast fails to fully nest in saddle and disconnects power Binding of actuator software fault or control erroneously sensed an increase in current 1 Check that base board has software version 2 6 or late...

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Page 51: ...702 8 Right Side Plate 4122802 9 Interface Panel 4122902 10 Look Up Light Assembly 913422 11 Mast Magnetic Switch Assembly 915519 12 Tube Wireway 4123502 13 Knurled Shaft 4159201 14 Mast Stop 4121602 15 Rubber Pad 4123301 16 Proximity Sensor Mounting Bracket 4123001 17 Actuator Pivot Block 4138901 18 Actuator Shaft 4123401 19 Beeper Alarm 223002 20 Alarm Bracket 4204301 21 Strain Relief 4022403 22...

Page 52: ...1 Internal Retaining Ring 3783 32 Pivot Block 4121001 33 Sleeve Bearing 4120401 N A Base Cover Left 4143002 N A Base Cover Right 4141002 N A N A N A N A N A N A Handheld Remote Control 4183601 N A 7 6 11 19 20 3 22 9 2 10 12 21 14 15 8 1 Figure 5 1 Exploded View Base Left Side Revision 1 5 2 ...

Page 53: ...Night Scan Chief 16 24 23 18 5 17 4 13 Figure 5 2 Base Right Side 31 28 32 33 33 32 28 31 30 26 27 28 29 MAST BOTTOM 25 Figure 5 3 Exploded View Mast Pivot Assembly Revision 1 5 3 ...

Page 54: ...01 5 Horizontal Bearing 913435 6 Bearing Retainer 4124202 7 Pan Bearing Spacer 4124401 8 Pan Gear 4124901 9 Pan Flag 4125201 10 Card Guide 913881 11 Terminal Bracket 4125401 12 Shim Washer 4203701 13 Key 4120802 14 Terminal Block 215001 15 Snap Ring 3401 16 Motor Assembly 4205001 17 Pan Bearing 3868 18 Flat Washer 3872 19 Snap Ring 4208001 20 O Ring PTFE 3398 21 Tilt Flag 4125101 22 Flag Mounting ...

Page 55: ...Night Scan Chief Revision 1 5 5 8 13 4 20 6 5 2 3 17 17 7 19 8 13 9 18 26 14 11 1 15 12 5 6 20 10 21 22 16 16 Figure 5 4 Exploded View Remote Control Positioner RCP ...

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Page 57: ...PTER 6 REVISIONS Revision 0 October 2007 Initial Release Revision 1 December 2007 Update base schematic Figure 4 8 to correct inclination motor wiring and add capacitor Add 2 10 to address capacitor use in 24 vdc multiplex installations ...

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Page 59: ... revision 4 3 board 2 the RCP board has revision 4 2 and board 3 a Remote Control board has revision 4 2 To date all software revisions are backward compatible and require no hardware changes Table 7 1 Software Revision Log Board Board No Revision Comments Compatibility Issues Base 1 4 3 Initial Release to production None RCP 2 4 2 Initial Release to production None HHRC 3 4 2 Initial Release to p...

Page 60: ...Night Scan Chief CHAPTER 8 APPENDICES Revision 1 8 2 ...

Page 61: ...HEMICAL CHARACTERISTICS Boiling Point Specific Gravity Vapor Pressure Unknown 0 9 Unknown Volatile Vol Vapor Density Air 1 Evap Rate N BA 1 Unknown Unknown 1 Solubility in Water Ph N A Reactivity in Water Nil N A Nil Appearance Odor Blue Liquid Petroleum Odor Flash Point Flammable Limits In Air by Vol Auto Ignition 350 F Upper Unknown Lower Unknown Unknown Extinguisher Media Special Fire Fighting ...

Page 62: ...such as dermatitis or oil acne Wash thoroughly with soap and water prior to using toilet facilities eating drinking or smoking Eyes Contact with eyes may cause temporary irritation Inhalation The inhalation of vapors generated at high temperatures only or oil mist may cause a mild irritation of the mucous membrane of the upper respiratory tract Ingestion Considered no more than slightly toxic if s...

Page 63: ... worker contact Keep from sewers or waterways by diking or impounding Advise authorities if product enters waterways or extensive land areas Dispose of recovered material and residue in compliance with all federal state and local regulations Waste Disposal Dispose of all waste products in accordance with all applicable federal state and local regulations Handling and Storage Precautions Keep conta...

Page 64: ..._______________________________ WAS THE PRICE OF THIS PRODUCT COMPETITIVE YES __________ NO __________ WOULD YOU PURCHASE THIS PRODUCT AGAIN YES __________ NO__________ WOULD YOU RECOMMEND THE PURCHASE OF THIS PRODUCT TO YOUR FRIENDS OR THEIR ASSOCIATES YES __________ NO__________ DOES THE PRODUCT SATISFY YOUR NEEDS REQUIREMENTS IF NO EXPLAIN _______________________________________________________...

Page 65: ...VIEWED HOWEVER THE EVALUATION OF ANY PARTICULAR SUGGESTION NEITHER IMPLIES NOR GUARANTEES IMPLEMENTATION OF THE SUGGESTED CHANGE ALL REVISIONS MODIFICATIONS AND OR IMPROVEMENTS MADE TO THE WILL BURT PROPRIETARY PRODUCTS AS A RESULT OF SUGGESTIONS MADE ON THIS SHALL BE THE SOLE AND EXCLUSIVE PROPERTY OF THE WILL BURT COMPANY AND NO COMPENSATION OR CONSIDERATION OF ANY KIND WILL BE PAID FOR SUCH REC...

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