1	Hoisting Modules
2	Overview Rigging a Module to Hoist Determining the Center of Gravity of the Module to Lift Hoisting the Module
3	Rigging the Load Single most important job of a crane operation is rigging the load Poor rigging could result in personal injury, property damage, or other serious hazards
4	Rigging Equipment Do not use Synthetic webbing slings with: Abnormal wear, torn stitching, broken or cut fibers, or discoloration or deterioration. Steel chain slings with: Cracked or bent links, hooks, or other components.
5	Rigging Equipment Do not use Wire rope slings with: Kinking, crushing or other distortions Evidence of heat damage, cracks, deformations, or worn end attachments Randomly broken wires
6	Wire Rope
7	Broken Wires On Wire Rope
8	Broken Wires Do not use wire rope if: In any length of 8 diameters, the total number of visible broken wires exceeds 10 percent of the total number of wires.
9	Crushed Wire Rope
10	Measuring Wire Rope Wire rope measured across strand crowns Remove if reduction is 5% or more of the original diameter Abrasion Corrosion Inner broken wires Rope stretch
11	Measuring Diameter of Wire Rope
12	Kinking
13	Birdcaging
14	Steel Chains
15	Rigging Equipment
16	Shackles
17	Shackles
18	Poor Rigging
19	Poor Rigging
20	Rigging Determine the proper size for slings and components based on box weight and sling angles. As the sling angle decreases, the load on the sling legs increases.
21	Sling Protection Protect slings from damage with padding Use sufficient size and strength Also protects home from damage
22	Wood Block Padding
23	Padding Material Padding for slings can either be homemade or commercially bought Homemade Wood blocks Metal pipe, cut in half lengthwise
24	Protecting slings
25	Notches Made For Rigging Slings (video)
26	Chainsaw PPE & Safety
27	Chainsaw Injuries
28	Leg protection
29	Basic Chainsaw Safety Operate saw according to manufacturer’s instructions. Always cut at waist level or below Do not wear loose fitting clothing Properly sharpen and lubricate blade Shut off saw or engage chain break when walking over uneven terrain. Gas powered chainsaw must have a protection device to minimize kickback To avoid kickback, do not saw with the tip
30	"Potential for Kickback" Potential for Kickback
31	Protection Against Kickback Chain break
32	Loose Items in Box Before lifting module make sure all items are secure within the module to prevent them falling out during lift Shingles Appliances Tools
33	Determine Center of Gravity of Module A load is stable when the hook is directly above the center of gravity. Estimate center of gravity Lift load just enough to get off the ground. Check the tilt of the load. Correct the balance if needed
34	Determining the Center of Gravity
35	Balance
36	Cranes The central consideration in preparing the site for a modular set is the crane. The crane operator determines whether the site is unsafe he can call off the set. Provide easy access and a level crane pad as close to the foundation as possible.
37	Rough Terrain Unit 75 tons, 125 foot boom
38	Cranes Specific requirements for cranes use on site are: - 30-foot wide area for crane and module(s) depending on the size of box; - Appropriate and close location with reference to foundation; - Additional cribbing may need to be provided by the builder; - Site graded and hard-packed.
39	Crane Location 30 foot wide area for crane to sit As close to foundation as possible
40	Supporting Surface
41	Blocking Blocking Spreads out the load so the supporting surface can support it.
42	Blocking Blocking Transmits the load without bending or breaking.
43	Ground Did Not Support Outrigger
44	Blocking
45	Blocking Long wood blocks bolted together. Bolting together blocking prevents the blocking from shifting under the weight of the outriggers.
46	Blocking
47	Poor Blocking
48	Calculating Blocking/Cribbing Area Method 1 Area of outrigger pad ( ft²) x 3 = Blocking area Method 2 Capacity of crane (tons) / 5 = Blocking area
49	Calculating Area What should the blocking area be : Method 1: If the outrigger pad is 3.5 ft² 3.5 square feet X 3 = 10.5 ft² Method 2: If the capacity of crane is 75 tons 75 tons / 5 = 15 ft²
50	Crane Safety Cranes should be operated by only trained and qualified personnel. Depending on which state your in you may require crane operator’s certification.
51	Swing radius barricaded
52	Load Capacity Chart The load chart specifies the rated (maximum) capacity of the crane for every possible configuration and situation. It also specifies the operation limitations and the conditions necessary for safe operation.
53	Crane Capacity Most cranes used in residential modular sets are rated from 75 to 90 tons. The weight of a typical box, with materials that have been “shipped-loose,” is about 45 lbs. per square foot. A 14- by 40-foot box (560 square feet) weighs weigh about 13 tons.
54	Crane accident
55	Improperly Unloading a Module (video)
56	Load Chart Several factors are considered when calculating load capacity: Load radius Boom length Parts of line Quadrant of operation Boom angle Weight of load, attachments, handling devices
57	Causes of Reduced Load Capacity Off-level Wind hazard Eccentric reeving Swing out Side loading Impact loading
58	Leveling
59	Wind
60	Eccentric Reeving Blocks that are not symmetrically reeved will tilt When a hoist line runs on the center sheeve, torque is minimized or even eliminated
61	Swing Out Swinging the load forward Causes operating radius to increase Reduction in capacity
62	Side Loading
63	Impact Loading Rapid acceleration and deceleration Can increase the effective load on the crane to 2 times the actual weight To prevent impact loading or shock loading: Start and stop crane slowly
64	Crane Safety Remove all flammable or combustible objects away from the crane. All employees should be kept clear of all loads to be lifted and those suspended Maintain at least a 10 foot distance from overhead lines.
65	Working Around Load
66	Working Around Load
67	Working Around Loads
68	Working Under Loads (video) Do not move a load over people. Do not work under a suspended load unless the load is sufficiently supported.
69	Working Under Live Loads (video)
70	Moving Loads Center the hook over the load to keep the cables from slipping and prevent the load from swinging. Use a tag line when moving long distances Plan and check travel path for obstructions
71	Overhead Powerline Hazards Electrocutions Typically lethal Electrical shock Fires Falls A result of contact with line
72	Awareness of Overhead Power Lines
73	Crane contacts power line causing fire
74	Overhead Power Line Safety Survey the area before work begins for the presence of overhead wires Never assume an overhead wire is safe to touch Don’t touch a fallen overhead power line Maintain at least a 10 foot distance from the power line during all activities An employee should be designated to monitor the cranes proximity to power lines
75	Power Line Clearance Volts <50 kV 200 kV 350 kV 500 kV 650 kV 800 kV Distance from Power Line 10 Feet 15 Feet 20 Feet 25 Feet 30 Feet 35 Feet
76	Power Line Contact Current can flow outward through the ground in a ripple effect from the equipment in contact with the power line.
77	What If Crane Contacts Power Line Don’t panic Stay at controls Try to move boom away from line If you must get out of machine: Jump clear and don’t touch machine while on ground. Keep feet together and hop away or shuffle your feet until you have cleared area.
78	What If Crane Contacts Power Line If a co-worker contacts a power line do not try to rescue them or you could be shocked too. Do not touch any equipment that is in contact with live power lines Contact the power company to check whether lines are live
79	Proximity of Trees
80	Review Rigging a Module Properly is vital to a safe lift and placement of the home. Modular home installers must understanding proper rigging techniques and safe and proper use of equipment. Personal Protective Equipment is required during this activity The crane operator must ensure that the crane can safely lift the module and that the site is adequate to sustain the crane and outriggers. A safe distance from overhead powerline must be maintained.