User Instruction Manual Modular Davit Arm and Mounting Base

Transcription

1 User Instruction Manual Modular Davit Arm and Mounting Base This manual is intended to meet the Manufacturer s Instructions as required by ANSI Z and ANSI A , and should be used as part of an employee training program as required by OSHA. Copyright 2003 DB Industries, Inc.

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3 WARNING: This product is part of a personal fall arrest, work positioning, personnel riding, or rescue system. The user must read and follow the manufacturer's instructions for each component or part of the complete system. These instructions must be provided to the user of this equipment. The user must read and understand these instructions or have them explained to them before using this equipment. Manufacturer's instructions must be followed for proper use and maintenance of this product. Alterations or misuse of this product or failure to follow instructions may result in serious injury or death. IMPORTANT: If you have questions on the use, care, or suitability of this equipment for your application, contact DBI/SALA. IMPORTANT: Record the product identification information from the ID label in the inspection and maintenance log in section 9.0 of this manual. DESCRIPTIONS DAVIT ARM ONLY: Part No See Figure 1. Davit arm: anodized aluminum, zinc-plated steel, stainless steel, adjustable reach: 12 in., 18 in., and 24 in. Mast: zinc-plated steel DAVIT BASE ONLY: Part No See Figure 2. Davit base: anodized aluminum, zinc-plated steel, stainless steel, adjustable width from: 48 in. to 60 in.; 9 in. leveling adjustment in each foot. DAVIT ARM WITH MODULAR MOUNTING BASE: Part No (PN and PN ). See Figure 3. Figure 1 - Davit Arm OPTIONS: Additional combinations of winches, self retracting lifelines, davit arms, and bases are available. Figure 2 - Davit Base Figure 3 - Davit Arm and Base 3

4 1.0 APPLICATIONS 1.1 PURPOSE: DBI/SALA modular davit arm and mounting base combinations are intended to be used as part of a work positioning, personnel riding, personal fall arrest, material handling, or rescue system. The davit arm and mounting base are intended to act as a support structure or anchorage for these systems. 1.2 LIMITATIONS: Consider the following application limitations before using this equipment: A. CAPACITY: The maximum working load for this product is 350 lbs. B. FREE FALL: Personal fall arrest systems must be rigged to limit the free fall to six feet (according to ANSI Z359.1, or five feet according to ANSI A10.14). C. FALL CLEARANCE: Ensure that adequate clearance exists in your fall path to avoid striking an object. The amount of clearance required is dependent upon the type of connecting subsystem and anchorage location. See subsystem manufacturer s instructions for more information. D. ENVIRONMENTAL HAZARDS: Use of this equipment in areas where environmental hazards exist may require additional precautions to limit the possibility of injury to the user or damage to the equipment. Hazards may include, but are not limited to: high heat, caustic chemicals, corrosive environments, high voltage power lines, explosive or toxic gases, moving machinery, and sharp edges. E. TRAINING: This equipment is intended to be installed and used by persons trained in its correct application and use. See section APPLICABLE STANDARDS: Refer to applicable standards, including ANSI Z359.1, ANSI A10.14, ANSI Z117.1, and local, state, and federal (OSHA 26 CFR , , ) requirements for more information on the application of this equipment. 4

5 2.0 SYSTEM REQUIREMENTS 2.1 COMPATIBILITY OF COMPONENTS AND SUBSYSTEMS: This equipment is designed for use with DBI/SALA approved components and subsystems. Substitutions or replacements made with nonapproved components or subsystems may be incompatible, and may jeopardize the safety and reliability of the complete system. 2.2 COMPATIBILITY OF CONNECTORS: Connectors (hooks, carabiners, D-rings) must support at least 5,000 lbs. Connectors must be compatible in size, shape, and strength. Non-compatible connectors may unintentionally disengage (roll-out). Do not use non-locking connectors with this equipment. 2.3 STRUCTURAL STRENGTH: The structure or mounting surface to which this equipment is installed must meet the strengths specified below for the application selected: A. FALL ARREST: The structure selected for personal fall arrest applications must be capable of sustaining static loads applied in the directions permitted by the personal fall arrest system of at least: 3,600 lbs. with certification of a qualified person; or 5,000 lbs. without certification. See ANSI Z359.1 for certification definition. When more than one personal fall arrest system is attached to a structure, the strengths stated above must be met at each location independently. From OSHA and : Anchorages used for attachment of personal fall arrest systems shall be independent of any anchorage being used to support or suspend platforms, and capable of supporting at least 5,000 lbs. per user attached, or be designed, installed, and used as part of a complete personal fall arrest system which maintains a safety factor of at least two, and is under the supervision of a qualified person. B. WORK POSITIONING: The structure to which the work positioning system is attached must sustain static loads applied in the directions permitted by the work positioning system of at least 3,000 lbs., or twice the potential impact load, whichever is greater. See OSHA When more than one work positioning system is attached to an anchorage, the strengths stated above must be multiplied by the number of work positioning systems attached to the anchorage. 5

6 C. PERSONNEL RIDING: The structure selected for personnel riding applications must be capable of sustaining static loads applied in the directions permitted by the personnel riding system of at least 2,500 lbs. Each davit arm and base installation must be independently capable of sustaining this load. D. MATERIAL HANDLING: The structure selected for material handling applications must be capable of sustaining static loads applied in the directions permitted by the material handling system of at least 2,500 lbs. Each davit arm and base installation must be independently capable of sustaining this load. E. RESCUE: The structure selected for rescue applications must be capable of sustaining static loads applied in the directions permitted by the rescue system of at least 2,500 lbs. Each davit arm and base installation must be independently capable of sustaining this load. WARNING: Davit arms and mounting bases that are installed for personnel riding, material handling, or rescue applications only, must be labeled as such to prevent the system from being used for fall arrest or work positioning applications, which require greater structural strength. 3.0 OPERATION AND USE WARNING: Do not alter or intentionally misuse this equipment. Some subsystem and component combinations may interfere with the operation of the equipment. WARNING: Consult with your doctor if there is reason to doubt your fitness to withstand fall arrest forces. Pregnant women or minors must not use this equipment unless for unavoidable emergency use situations. 3.1 BEFORE EACH USE of this equipment, carefully inspect it according to section 5.0 of this manual. 3.2 PLAN your system before using this equipment. Consider all factors that will affect your safety during use of this equipment. Consider the following points when planning your system: A. HAZARD EVALUATION: An evaluation of job site hazards is necessary before starting work. Consult applicable OSHA and industry standards for guidelines and regulatory requirements on issues such as; confined space entry, personal fall arrest 6

7 systems, and single point suspended scaffolds. B. WORK SITE GEOMETRY: When suspending working lines from the davit arm, check for obstructions or sharp edges in the work path. Avoid working where the user may swing and hit an object, or where lines may cross or tangle with that of another worker. C. BACKUP FALL ARREST SYSTEM: When using the davit arm and mounting base as a support for suspending a worker at a work level, or for personnel riding applications, a backup fall arrest system is required. See OSHA 29 CFR and The davit arm has an auxiliary connection point for a backup personal fall arrest system. D. RESCUE: In the event of an accident with injuries or other medical emergency, it is critical to have a rescue system in place. Response time often plays an important role in the survival of an injured worker. It should be assumed that the fallen user will not be able to participate in their rescue. Users of this equipment must be trained in emergency procedures. 3.3 LOAD REQUIREMENTS: See section 2.3 for application types and supporting structure load requirements. 3.4 GEOMETRIC REQUIREMENTS: Select a level area near the work opening that will allow the mast to be leveled in accordance with the leveling bubble installed on the base. The location must also provide firm footing that will not allow the base to sink or shift while in use. Position the modular base so the arm will be directly over the work area. The winch/srl cable must remain parallel to the mast while in use. See Figure 4. Do not position the davit arm where the worker will have to swing under the davit arm to reach the work area. The acceptable working area is directly under the davit arm, between the stabilizer tubes. See Figure 5. Avoid positioning the davit arm where the working line may abrade against sharp edges when in use. Figure 4 - Cable Parallel to Mast Cable and mast must remain parallel during use 7

8 WARNING: Never allow the working line to extend outside the legs of the portable base, tipping of the base could occur. IMPORTANT: All mounting bases must be positioned so the davit arm will be directly over the work area. The davit arm must be positioned to ensure a safe working area for the user. Figure 5 - Davit Arm Positions Acceptable working area Approx REQUIREMENTS FOR PERSONAL FALL ARREST SYSTEMS: Personal fall arrest systems used with the davit arm and base typically include, full body harness, connecting subsystem (self retracting lifeline or lifeline and rope grab), and necessary hardware to connect the system. Personal fall arrest systems used with this davit arm and mounting base must meet applicable OSHA requirements. Personal fall arrest systems that use a full body harness must limit the fall arrest forces to 1,800 lbs., and arrest the fall within 42 inches. Body belts, unless part of a full body harness, are not recommended for use with this equipment. 3.6 ASSEMBLY OF DAVIT BASE AND DAVIT ARM: A. BASE ASSEMBLY: See Figure 6. Step 1. Step 2. Remove all parts from the carrying bags (carrying bags are optional) and inspect for damaged, defective, or missing parts. If any components are found to be damaged, defective, or missing, contact DBI/SALA immediately for replacements Insert a width adjustment tube into each side of the base and secure each tube with the attached detent pin. The base width can be adjusted to widths of 48 in., 54 in., or 60 in. For a 48 in. width, push both width adjustment tubes completely into the base and secure them with attached detent pins. For a 54 in. width, unpin one of the width adjustment tubes and pull it out six inches to the second hole position and secure it with the attached detent pin. For a 60 in. width, pull both width adjustment tubes out to the second hole position and secure them with the attached detent pins. 8

9 Detent Pins Mast Socket Base Figure 6 - Base Assembly Stabalizer Tube Width Adjustment Tube Leveling Foot SALA Logo Step 3. Insert a stabilizing tube into each of the width adjustment tubes. The stabilizer tubes must be oriented so that the longer section extends out from the side of the base with the SALA logo. See Figure 6. Each stabilizer tube must be secured with the detent pin attached to the width adjustment tube. IMPORTANT: If the stabilizer tubes aren t positioned properly and secured in place, the base may rock or tip during use. Step 4. Step 5. Insert a leveling foot into both ends of each stabilizing tube. Secure each leveling foot with its attached detent pin. To level the base, adjust each foot as necessary by swiveling the leveling foot handle up and rotating the handle in a clockwise direction to lower the foot or counterclockwise to raise the foot. A leveling bubble is located on the base near the mast socket. B. DAVIT ARM ASSEMBLY: Step 1. Step 2. Insert the mast into the mast socket in the base. The arm rotation locking lever may be positioned either toward the front or the back of the base. Secure the mast in place with the supplied detent pin. See Figures 6 and 8. The davit arm has three position settings. The arm position may be adjusted by removing the locking detent pin, rotating the arm to the desired position and replacing the detent pin. See Figure 7. Make sure the arm is secured in a 9

10 position before assembling to the mast. Figure 7 - Davit Arm Positions Step 3. Step 4. Slide the davit arm into the mast and secure in place with the included detent pin. See Figure 8. The davit arm can rotate around the axis of the mast. The rotation range is limited to approximately 120. Tighten the arm rotation locking lever to secure the arm position before using the davit arm. Check the davit arm for position above the work area. Adjust the arm and base position as required. Davit Arm Locking Detent Pin Locking detent pin Figure 8 - Mast Assembly 3.7 CONNECTING EQUIPMENT TO THE DAVIT ARM: The davit arm is equipped with three system connection points (see Figure 9). Two connection points are quickmount attachment points for the Salalift winch or self retracting lifeline. The third connection point is an auxiliary connection for other DBI/SALA systems. Detent Pin Quick Mount Attachment Point Arm Rotation Locking Lever A. WINCH MOUNTING: Mount the winch on the top quickmount Mast attachment point as shown in Figure 10. Slide the slots in the base of the winch onto the bar in the quick-mount attachment point. Use the attached locking detent pin to secure the front of the winch base into the attachment point. The winch cable must be routed over the sheave at the end of the arm. The davit arm may be lowered by pulling the locking detent pin at the base of the davit arm and allowing the arm to rotate forward. The weight of the winch on the back of the arm may cause the arm to rotate backwards. When the arm is lowered, 10

11 pull out the sheave pins at the end of the arm, route the cable over the guide roller and through one of the pulleys and then replace the sheave pins. Do not operate the winch without the sheave pins in place to capture the winch cable. B. SELF RETRACTING LIFELINE MOUNTING: Mount the self retracting lifeline on the top or bottom quick-mount attachment point as shown in Figure 11. Use the bottom quick-mount attachment point when the top attachment point is occupied by a winch or other equipment. Route the self retracting lifeline cable through the unused side of the double pulley at the end of the davit arm as shown in Figure 11. Route cable under the sheave pins as described in section A above. The SRL cable may also be routed through a separate (optional) snatch block that is attached to the auxiliary connection instead of using the davit arm sheave. Figure 9 - Connecting Points Figure 10 - Winch Quick-mount Sheave Pin Guide Roller Auxillary Connection Quick-mount Attachment Points The self retracting lifeline can be hung from the auxiliary connection point using a selflocking, carabiner as shown in Figure 12. When connecting other equipment to the auxiliary connection point, DBI/SALA recommends using a self locking hook or carabiner. 11

12 C. ROPE AND ROPE GRAB: A rope lifeline may be hung from the auxiliary connection point and used in conjunction with a rope grab as shown in Figure 13. Figure 11 - Winch and SRL IMPORTANT: Knots must not be used for load bearing end terminations (see ANSI Z359.1). Some knots reduce strength of the lifeline by fifty percent or more. 4.0 TRAINING 4.1 It is the responsibility of the user and purchaser of this equipment to be trained in the correct care and use of this equipment. The user and purchaser must be aware of the operating characteristics, application limits, and consequences of improper use of this equipment. IMPORTANT: Training must be conducted without exposing the trainee to a fall hazard. Training should be repeated on a periodic basis. 5.0 INSPECTION Figure 12 - SRL Mounting Option Figure 13 - Rope Mounting Option 5.1 FREQUENCY: Before Each Use: Inspect according to steps listed in section 5.2 and 5.3. Monthly: A formal inspection of the davit arm and base should be done by a competent person other than the 12

13 user. See sections 5.2 and 5.3. Record inspection results in the inspection and maintenance log in section 9.0 of this manual. After a Fall Arrest: Inspect entire davit arm and base according to section 5.2. WARNING: If the davit arm and mounting base have been subjected to fall arrest forces, they must be immediately removed from service and inspected. If the davit arm or mounting base fails inspection remove from service and contact DBI/SALA for repair or replacement. IMPORTANT: Extreme working conditions (harsh environments, prolonged use) may require increasing the frequency of inspections. 5.2 DAVIT ARM INSPECTION: Step 1. Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. Step 8. Inspect all detent pins, bolts, and nuts to ensure they are secure and operate properly. Check for missing, substituted, or altered parts. Davit arm and mast must be straight and free of cracks, dents, distortion, or any other damage. Arm Rotation: locking lever on mast must prevent the davit arm from turning when locked. Davit arm must rotate through its three positions properly and can be locked into place with locking detent pin. Inspect sheave at end of davit arm. Sheave must be clean and rotate freely. Auxiliary fall arrest anchorage point must be free of cracks, dents, distortion, or any other damage. Ensure davit base stabilizer tubes on portable davit base are positioned correctly and detent pins lock properly. Ensure adjustable feet on portable davit base can move freely. Ensure davit base is free of cracks, dents, distortion, or any other damage. Inspect entire system for corrosion which may weaken or otherwise affect parts in their function. Step 9. All labels must be present and fully legible. See section

14 Step 10. Record results of inspection in the inspection and maintenance log in section 9.0 of this manual. Step 11. Inspect each system component in accordance to manufacturer s instructions. 5.3 If inspection reveals an unsafe or defective condition, remove the davit arm and mounting base from service and destroy, or contact an authorized service center for repair. NOTE: Only DBI/SALA or parties authorized in writing may make repairs to this equipment. 6.0 MAINTENANCE, SERVICING, STORAGE 6.1 Periodically clean the exterior of the davit arm and base using water and mild detergent. Clean labels as required. 6.2 If moving parts such as pulleys and leveling feet don t move freely, they may be lubricated with a light machine oil. 6.3 Replacement parts and additional maintenance and servicing procedures must be completed by an authorized service center. An authorization and return number must be issued by DBI/SALA. 6.4 Clean and store system components according to manufacturer s instructions. 6.5 Store this equipment in a clean and dry environment out of direct sunlight. Avoid areas with chemical vapors. Inspect equipment after any period of extended storage. 7.0 SPECIFICATIONS 7.1 STANDARDS: Complies with OSHA and as an anchor point. Complies with OSHA , ANSI Z117.1 when used with a DBI/SALA winch/retrieval mechanism. 7.2 MATERIAL: Davit Arm: Side Frames: Anodized aluminum and zinc-plated steel components Guide Roller: Delrin Pulley: Galvanized powdered metal Fasteners: Stainless steel and zinc-plated steel Mast: zinc-plated steel, 3 1/2 in. X 3/16 in. wall tube. 14

15 Davit Base: Stabilizer Tubes: Anodized aluminum 3 in. dia. X 1/4 in. wall tube. Width Adjustment Tubes: Anodized aluminum Leveling feet: Anodized aluminum with steel alloy shaft and foot, and rubber pad. 7.3 LENGTHS AND WEIGHTS: Stabalizer Tube 10 lbs each Davit Arm 33 lbs Mast 30 lbs Base 28 lbs Width Adjustment Tube 8 lbs each 22½ in 44 in 45 in 46½ in 48 in 15

16 7.4 HEIGHT AND REACH: 24 in 18 in 12 in NOTE: Heights are measured with foot at mid-adjustment point. Add 4 in. if foot is extended maximum amount, subtract 4 in. if foot is retracted full amount. 91in ±4 in 87 in ±4 in 93 in ±4 in 3 in 5 in 50 in 3 in Adjustable: 48 in. 54 in. 60 in. 16

17 8.0 LABELING The following labels must be present and fully legible: Base Label Arm Label 17

18 9.0 INSPECION AND MAINTENANCE LOG SERIAL NUMBER: MODEL NUMBER: DATE PURCHASED: INSPECTION DATE INSPECTION ITEMS NOTED CORRECTIVE ACTION MAINTENANCE PERFORMED 18

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20 WARRANTY Equipment offered by DBI/SALA is warranted against factory defects in workmanship and materials for a period of two years from date of installation or use by the owner, provided that this period shall not exceed two years from date of shipment. Upon notice in writing, DBI/SALA will promptly repair or replace all defective items. DBI/SALA reserves the right to elect to have any defective item returned to its plant for inspection before making a repair or replacement. This warranty does not cover equipment damages resulting from abuse, damage in transit, or other damage beyond the control of DBI/SALA. This warranty applies only to the original purchaser and is the only one applicable to our products, and is in lieu of all other warranties, expressed or implied. USA Canada 3965 Pepin Avenue 260 Export Boulevard Red Wing, MN Mississauga, Ontario L5S 1Y9 Toll Free: Toll Free: Phone: (651) Phone: (905) Fax: (651) Fax: (905) This manual is available for download at I S O Certificate No. FM From No: Rev: B