# Presentation: 194303

## Portable Tools

**Portable Tools**

## 1910.241 - Definitions. 
1910.242 - Hand and portable powered tools and equipment, general. 
1910.243 - Guarding of portable powered tools. 
1910.244 - Other portable tools and equipment. 

**1910.242 - Hand and portable powered tools and equipment, general. **
**1910.243 - Guarding of portable powered tools. **
**1910.244 - Other portable tools and equipment.**** **

**Part 1910 Subpart P - Hand and Portable **
**Powered Tools and **
**Other Hand-Held Equipment**

## 1910.242(a) General requirements. Employer is responsible for the safe condition of tools and equipment used by employees including those  which may be furnished by employees.

## 1910.242(b)  Compressed air 

**1910.242(b)  Compressed air **
**used for cleaning.**

## 1910.243(a) Guarding of portable powered tools

**The lower guard** shall cover the saw to the depth of the teeth.

**1910.243(a) Guarding of portable powered tools**

**Tools must be guarded**

## 1910.243 Switches and controls.

**(a)(2)(i)**** All hand-held powered circular saws must be equipped with a ****constant pressure switch**** or control that will shut off the power when the pressure is released. **

**1910.243 Switches and controls.**

## 1910.243 Switches and controls

**1910.243 Switches and controls**

## 1910.243(a)(3) Portable belt sanding machines.

**Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs onto a pulley. **

**Nip Point**

**1910.243(a)(3) Portable belt sanding machines.**

## 1910.243(a)(5) Grounding

**Portable electric powered tools shall meet the electrical requirements of subpart S of this part.**

**1910.243(a)(5) Grounding**

## 1910.243(b)(1) Tool retainer.

**1910.243(b)(1) Tool retainer.**

## LETTER OF INTERPRETAION

**Any other hazards not specifically covered in the standards which are associated with pneumatically driven staplers or similar equipment provided with automatic fastener feed, used in general industry may be cited under Section 5(a)(1) of the Act. An example would be not having a safety device on the muzzle to prevent the**
**tool from ejecting fasteners, unless the muzzle is in contact with the work surface. Each case must be evaluated on an individual basis. Alteration or misapplication of an otherwise safe piece of equipment could easily create a hazardous condition beyond the control of the manufacturer. **
**The Construction Standards, specifically 29 CFR 1926.302(b) must be observed by employers using pneumatic staplers at construction job sites. **

**LETTER OF INTERPRETAION**

## 1926.302(b)(1) “Securing hoses”

**Pneumatic power tools shall be secured to the hose or whip by some positive means to prevent the tool from becoming accidentally disconnected.**

**Wire used to secure hose**

**1926.302(b)(1) ****“Securing hoses”**

## 1910.243(b)(2) Airhose.

**1910.243(b)(2) Airhose.**

## 1910.243(c) Portable abrasive wheels 

**Abrasive wheels shall be used only on machine provided with safety guards as defined in paragraph (c) (1) through (4) of this section.**

**1910.243(c) Portable abrasive wheels **

## 1910.243(c)(3) Vertical portable grinders

**Safety guards used on machines known as right angle head or vertical portable grinders shall have a maximum exposure angle of 180 deg.**

**1910.243(c)(3) Vertical portable grinders**

**180 deg**

## 1910.243(c)(5)(i) Ring test

**1910.243(c)(5)(i) Ring test**

## 1910.243(c)(5)(i)

**The spindle speed of the machine shall be checked before mounting of the wheel to be certain that it does not exceed the maximum operating speed marked on the wheel.**

**Max RPM**

**1910.243(c)(5)(i)**

## 1910.243(d) Explosive actuated fastening tools

**1910.243(d) Explosive actuated fastening tools**

## 1910.243(d)(2)(i)(c) Design of tool

- Cut-Away View

**(d)(2)(i)(d)(1) Firing mechanism**
**(d)(2)(i)(a) The muzzle end of the tool shall have a protective shield or guard at least 3 1/2 inches in diameter**

**1910.243(d)(2)(i)(c) Design of tool**

## Specific charges specific fasteners

## 1910.243(d)(3)(iv) Fasteners

**1910.243(d)(3)(iv) Fasteners**

## Nail was designed for concrete not wood

## “FATAL FACT”

**Employee killed when struck in head by a nail fired from a powder actuated tool.  Tool operator was attempting to anchor a plywood form in preparation for pouring a concrete wall.**

## “FATAL FACT”

**Employees performing remodeling operations building a wall. Operator was attempting to anchor plywood to a 2”x 4” stud.  The nail penetrated the stud and struck the victim.  One worker killed when struck by a nail from a powder-actuated tool. **

## 1910.243(e)

**Power lawnmowers **

## MEMORANDUM FOR:     	REGIONAL ADMINISTRATORS

**FROM:               ****	****	****JOHN B. MILES, JR., DIRECTOR**
**                      ****	****	****DIRECTORATE OF FIELD OPERATIONS**
**SUBJECT:            ****	****Misapplication of Power Lawnmower Standard**** ****	****	****	****29 CFR 1910.243(e).**
**It has been brought to our attention that in some instances the OSHA standard for consumer type power lawnmowers at 1910.243(e) have been cited by field staff **_**when inspecting commercial lawnmowers.**_
**The OSHA standard at 1910.243(e) derived from ANSI B71.1-1968 pertains only to consumer type lawnmowers used by employees. **_**Commercial type lawnmowers are covered under 29 CFR 1910.212(a)(1) and (a)(3)(ii).**_
**When inspecting commercial type lawnmowers under 1910.212, industry consensus standards should be used to verify hazards, industry knowledge, and appropriate abatement. Whenever an employee hazardous exposure is identified relative to a commercial type lawnmower, ANSI B71.4-1984, Safety Specifications for Commercial, Turf Care equipment should be referred to.**

## 1910.243(e)(1)(i) Power lawnmowers of the walk-behind, riding-rotary, and reel power lawnmowers designed for sale to the general public  shall meet the design specifications in "American National Standard Safety Specifications for Power Lawnmowers" ANSI B71.1-X1968, which is incorporated by reference as specified in Sec. 1910.6. 

## 1910.243(e)(1)(ii) All power-driven chains, belts, and gears shall be so positioned or otherwise guarded to prevent the operator's accidental contact therewith, during normal starting, mounting, and operation of the machine.

## POWER LAWNMOWERS

**1910.243(e)(1)(iv)**All positions of the operating controls shall be clearly identified.

**1910.243(e)(1)(v) The words, "Caution.** Be sure the operating control(s) is in neutral before starting the engine,"

**POWER LAWNMOWERS**

## 1910.244(a)Jacks 

**1910.244 Other portable tools **
**and equipment. **

**1910.244(a)Jacks**** **
**(a)(1) ****Loading and marking.**
**(a)(2)**** Operation and maintenance.**

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