LADDERS 6 TOWER LADDERS Flashcards Preview


Flashcards in LADDERS 6 TOWER LADDERS Deck (20)
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Two FF’s are preparing to operate from a TL basket on a roof of questionable stability. Prior to operating on the roof the OIC of the operation insured that the member on the roof was tied off to the basket via a bowline with a _______ foot loop! which limits the member to a radius of not more than_____ feet from the basket


15 foot loop

10 feet from basket


What equipment should not be placed in a TL basket when the TL is used for ventilation purposes on a flat roof


Utility rope


When preparing to cut a hole in a peaked roof private dwelling from a TL basket the following procedures are followed


*Position the basket on the roof as close to the ridge pole as possible
*Saw is started in the basket and then held outside the basket. It shall be kept outside until shut off
*Operator shall where installed safety belt. The belt gives enough play to reach the edge of the platform and have one foot on the roof
If the safety belt is not used, for any reason, the LSR shall be tied to a substantial part of the basket, other than the railing, with a bowline. The loop of the bowline shall be large enough to reach the edge of the basket platform
*Back up holds operators personal harness or life belt
*Make 1st cut parallel to ridge pole
*Saw operator cuts with one foot on roof
*As an added precaution a utility cord shall be attached to the handle of the saw to prevent it from falling. Cord is to be lashed to basket or held by back up man
*The size of the cut will depend on the reach of the operator. He shall never over extend himself. Reposition basket if larger opening is necessary


When the instability of the roof is suspected

  • Keep the TL basket close to roof level
  • Secure members to the basket with the LSR
  • Do not engage in prolonged operations
  • Use portable ladder laid on flat roof to distribute the weight
  • If conditions permit place basket on roof and have members work from the basket

Who can order the use of TL streams at an operation


Only the Officer in Command


Large caliber streams generally should


Not be directed into OCCUPIED buildings. However life hazard or fire conditions or fire conditions may demand such use


The TL stream does not always have to be


Utilized at its full potential in order to be effective


Wen victims on a fire escape are endangered by fire emitting from widows BELOW them, a


FOG stream form a TL. Used at an acute angle to the building can be used to protect them while the basket moves in for removal


When breaching masonry walls with a power saw from the TL bucket

  • Insure correct blade (yellow)
  • Triangular cut made with the 1st two cuts at the brickwork
  • The apex of the triangle faced upward
  • The 3rd cut at the mortar joint may not be necessary
  • Opening should be large enough to insert the saw in order to cry the 2nd course of brick if necessary

Victim removal with TL basket

  • Middle railing of basket level with the sill
  • If obese or incapacitated top basket rail level with sill
  • Basket in line with building
  • Basket placed directly on roof if no parapet
  • To insure smooth operation use pedestal controls if conditions permit

When removing person with stokes via the TL basket

  • Speed is less important than a smooth operation
  • Stokes may be placed upright or diagonal, leaning OR lashed to a solid part of the basket railing
  • Stokes may also be lashed to the top railings of the basket, however this is more time consuming and limits administering 1st aide and a conscious victim will possibly feel insecure since part of his body will be beyond the basket railing. Stability of rails is to be considered
  • Diagonal placement of the stokes is easier and safer

When a fire building is heavily involved on several floors, heavy steam delivery should generally start at the


Lowest level and work upward


If fire has been burning for a considerable periods of time and the stability of the building is doubtful, the following guidelines are recommended

  • Keep basket beyond collapse area of the building WHEN possible
  • Expose a minimum section of the boom
  • Position apparatus so the basket can be placed at the edge of the building thereby limiting exposure of the apparatus in event of a collapse. Use two TL’s, one on each edge to obtain full coverage
  • Directing a steam from above the roof area into openings to attack a cockloft fire is generally counter productive, unless collapse has been extensive and an exterior attack is in progress

Water delivery to TL

  • Satellite unit is best source
  • Supply water at base 200-250 psi
  • Relief valve should be set at 250 psi
  • Generally one source at base of TL is used
  • Conventional pumper should be placed as close to TL as possible
  • Relay pumper can take water from more than one source
  • Relay pumper should have in excess of 80 psi with water flowing
  • Relay pumper operates in volume at 250 psi
  • Shut down at pumper not at TL base gated Siamese
  • Unless OOS can be greatly facilitated do not use TL as a standpipe
  • Whenever possible supply pumper should not be also supplying 1st due company hand lines
  • All hose connections spanner tight
  • Back pressures of 600 lbs or more must be expected

Upon shutting down the TL stream it shall be the duty of the ______
to survey each floor in regard to water run off, water laden stock, structural damage resulting from fire and/or operation of heavy caliber streams, or any other conditions that could be a danger to members IF interior mop up and overhaul contemplated


TL Officer


During an extended TL operation during sub freezing weather members of a TL lost all control of the basket due to an icing condition. What can we do to try and restore control of the basket


WITHOUT engaging the deadman control simultaneously DEPRESS and ROTATE the control handle vigorously several times


When overhauling a cornice what is the proper procedures when operating from a TL basket

  • Top of basket railing positioned slightly BELOW the work area
  • Power tools can be secured or supported by rope placed through windows above, or other substantial object above the operation, or a properly placed short ladder from the basket. Using a utility rope passed over an upper rung and secured to the power tool, the back up man holds the other end of the rope with enough tension to relive the weight of the tool
  • Basket shall not rest against the building

TL boom shall not be used for

  • To force timbers or cornices back into the building or onto roof
  • To pull or push objects
  • As a Derrick

Draining waterways and bedding the apparatus

  • Drains on main waterway should be opened while boom is elevated at a 60 Degree angle, feed lines at gated Siamese removed and gates of Siamese opened
  • AFTER boom has been bedded the drain plugs at the BASKET BASE shall be removed to insure the entire system is drained
  • After retracting the jacks and outriggers the boom shall be re-bedded
  • Hydraulic relief valve is to be opened after the boom is bedded and jacks and outriggers seated

Boom limit switch and limit switch finger

  • The limit switch finger can stick in a CANTED position
  • This can be caused by ice
  • If the boom is raised it cannot be lowered
  • Moving the limit switch finger with a 6 foot hook can correct this condition
  • If necessary to move the Limit Switch MANUALLY the fleet maintenance division MUST be notified