511 EM 385-1-1 Chapters 9-15

Sections

13-8. General Requirements.

Chainsaws

Chainsaws must include safety features like a clutch, chain brake, and other ANSI/OPEI B175.1/A1 specified requirements.
Start and use chainsaws according to manufacturer's instructions, ensuring safety features like the chain brake are engaged and the area is clear of co-workers.
Adhere to safe operation practices such as not fueling chainsaws when hot or near flames, holding the saw with both hands during cutting, and avoiding cutting above shoulder height.

Abrasive Blasting Equipment

Hose and connections must prevent static electricity buildup and accidental disengagement, with safety lashings on all connections.
Nozzle attachments should be metal, fit on the hose's outside, and include a deadman-type control device to cut off flow if control is lost.
Consult chapter 6 for additional abrasive blasting requirements and ensure proper storage of the nozzle when not in use.

Knowledge Check Choose the best answer for the question.

13-7. What should be included on abrasive blasting equipment to prevent injury if control of the equipment is lost?

A deadman-type control device

A nozzle clamp

A Type I trigger devices

An automatic start switch

You forgot to answer the question!

EM 385-1-1 Paragraph 13-8 (i.–j.).

13-3. General Requirements (i.–j.).

i.  Chainsaws.  (13-8.i)

(1)  Chainsaws must have a clutch, automatic chain brake (gas only) or kickback device, throttle trigger latch, stop switch, rear hand guard, chain catcher, vibration damper, spark arrestor, and muffler, and must otherwise meet the requirements of ANSI/OPEI B175.1/A1.

(2)  Gas-powered chainsaws must be equipped with a control that will return the saw to idling speed when released.

(3)  Start and operate chainsaws only after all co-workers are clear and then according to the manufacturer’s instructions.

(4)  Start chainsaws on the ground or where otherwise firmly supported.  Do not drop start a chainsaw.

(5)  Start chainsaws with the chain brake engaged.

(6)  Adjust the idle speed so that the chain does not move when the engine is idling.

(7)  Do not fuel chainsaws while running, while hot, or near an open flame.  Do not start saws within 10 feet (3 m) of a fuel container.

(8)  The operator must hold the saw with both hands during all cutting operations.

(9)  Shut off the saw when carrying it over slippery surfaces, through heavy brush, and when adjacent to others. The saw may be carried running at idle speed with the brake set for short distances (less than 50 feet (15.2 m)) as long as it is carried to prevent contact with the chain or muffler.

(10)  Never use a chainsaw to cut above the operators' shoulder height.

(11) Keep chainsaw chains sharp and properly adjusted according to the manufacturer’s instructions.

(12)  See chapter 31 for tree maintenance and removal requirements.

j.  Abrasive Blasting Equipment.  (13-8.j)

(1)  Hose and hose connections must be designed to prevent build-up of static electricity.

(2)  Connections and nozzles must be designed to prevent accidental disengagement. Equip all connections with safety lashings.  (See chapter 20)

(3)  Nozzle attachments must be of metal and fit on the outside of the hose. Provide a deadman-type control device at the nozzle to cut off the flow if the operator loses control of the hose.  Provide a support on which the nozzle may be mounted when it is not in use.

(4)  Refer to chapter 6 for additional requirements on abrasive blasting.