
Chapter Objectives: Students will be able to identify the elements in a job hazard analysis (JHA): the task or procedure to be accomplished, the hazards associated with the task or procedure, abatement actions to eliminate or reduce the hazards, first-aid and emergency evacuation procedures.
Students will learn why personal protective equipment (PPE) is used, how it is used, and how it is maintained.
Students will be able to identify common safety mistakes made by sawyers.
Job Hazard Analysis
A JHA (see sample at the end of this chapter) must be prepared (preferably with the assistance of the involved employees) before beginning any work project or activity. The JHA must:
- Identify the task or procedure to be accomplished.
Such tasks could include limbing, bucking, or felling.
- Identify the hazards associated with the task or procedure.
These hazards may include physical, biological,
environmental, chemical, and other hazards. Examples
of hazards include:
- Physical hazards: Rocky terrain, slippery slopes.
- Biological hazards:
Insect bites, hantavirus.
- Environmental hazards: Weather-related hazards
such as hypothermia, wind, lightning.
- Chemical hazards: Hazardous materials
such as fuel mix for chain saws and oil for crosscut saws.
- Other hazards:
Personal security issues, public traffic, hunting seasons.
- Physical hazards: Rocky terrain, slippery slopes.
- Identify abatement actions that can eliminate or reduce hazards. Abatement actions in order of preference include:
- Engineering controls: The most desirable method
of abatement (such as ergonomic tools and equipment).
- Substitution: Such as
switching to high flashpoint, nontoxic solvents.
- Administrative controls:
Such as limiting exposure by reducing work schedules or establishing appropriate
work practices and procedures.
- PPE: The last method of abatement (such as using hearing protection when working with chain saws).
- Identify first-aid supplies and emergency evacuation
procedures. In the event of an emergency evacuation,
be prepared to provide the following information:
- Nature of the accident or
injury (avoid using the victim's name).
- Type of assistance needed (ground,
air, or water evacuation).
- Location where the accident occurred and best
access to the work site (road name or number).
- Radio frequencies.
- Contact person.
- Local hazards to ground vehicles or aviation.
- Weather conditions (windspeed
and direction, visibility, temperature).
- Topography.
- Number of individuals to be transported.
- Estimated weight of individuals for air or water evacuation.
- Nature of the accident or
injury (avoid using the victim's name).

Instructor:
Discuss with the students how a medical emergency and evacuation will be handled and each person's role.
First Aid
Refer to the Health and Safety Code Handbook chapter 20, sections 21.21 and 21.22, for information on handling a medical emergency. The onsite first-aid kit must have supplies that meet Occupational Safety and Health Administration (OSHA) specifications and requirements. A Type IV first-aid kit must be available as a minimum (General Services Administration national stock number NSN 6545-01-010-7754). A more complete kit meeting higher standards may be used.

Instructor:
Discuss with the students why an emergency evacuation plan is important.
Emergency Evacuation Plan
An emergency evacuation plan is essential for any field project, especially one involving chain saws and crosscut saws. All employees need to be proficient in using a radio. They need to know which frequencies to use and whom to contact in the event of an emergency. The latitude and longitude and/or the legal location for an emergency medical helispot shall be determined and included in the JHA before starting any work. The entire crew shall know where the helispot is located. The emergency evacuation plan needs to be updated when the work location changes.
The JHA and emergency evacuation plan shall be signed by employees, signifying that they have read and understood the contents, have received the required training, are qualified to perform the task or procedure, and will comply with all safety procedures.
A copy of the JHA, the bloodborne-pathogen exposure control plan, the material safety data sheets for products used on the work project or activity, and the emergency evacuation plan must be kept onsite during the project. The JHA can be reviewed and updated during tailgate safety sessions. These sessions take place before a new project or activity is begun, when changes are made (such as changing location, adding crewmembers, or changing job responsibilities), or whenever employees believe a session is needed. Topics often focus on the hazards associated with the job and methods to eliminate or abate them.

Instructor:
Review the required PPE for specific chain saw or crosscut saw operations.
Personal Protective Equipment
Refer to the Health and Safety Code Handbook chapter 70, section 72 for items that must be included in the JHA:
PPE | Chain Saw Operations | Crosscut Saw Operations |
---|---|---|
Forest Service-approved hardhat | Full brim or cap style | Full brim or cap style |
Wrap-around eye protection | Safety glasses or shield | Safety glasses or shield |
Hearing protection | Plugs or muffs rated for 85 decibels and higher | Not required |
Long-sleeved shirt | Required | Optional |
Gloves | Slip-resistant, appropriate for the weather conditions and shall be cut-resistant for chain filing | Slip-resistant, appropriate for the weather conditions |
Trousers | Loose fitting, without a solid hem, or that can be tucked into boots. Do not cut fire pants and allow them to ravel (stag). | Loose fitting, without a solid hem, or that can be tucked into boots. Do not cut fire pants and allow them to ravel (stag). |
Boots | Heavy-duty, cut-resistant or leather, waterproof or water-repellent, 8-inch-high, laced, with nonskid soles and adequate ankle support. Hard toes are optional (Health and Safety Code Handbook). Calked boots are recommended for wet, slippery conditions. | Heavy-duty, cut-resistant or leather, waterproof or water-repellent, 8-inch-high, laced, with nonskid soles and adequate ankle support. Hard toes are optional (Health and Safety Code Handbook). Calked boots are recommended for wet, slippery conditions. |
Chain saw chaps | Must overlap boots by at least 2 inches. Only saw chaps provided by the General Services Administration meeting the most current Forest Service specifications (6170-4) are approved for purchase and use. | Optional |
Type IV first-aid kit | Required. Employees should carry their own disposable gloves. | Required. Employees should carry their own disposable gloves. |
PPE should be used with engineering controls, substitution, administrative controls, or a combination of those approaches. Relying on PPE alone is not adequate.
General requirements should be followed for assessing the head, eye, face, hand, and foot hazards of a work project or activity.
General Requirements—
- Select PPE based on hazards identified in the JHA.
- PPE shall fit properly.
- Defective, damaged, or unsanitary PPE shall not be used.
- Supervisors shall assure the adequacy of PPE as
well as its proper maintenance and sanitation.
- Each employee shall be trained to wear the PPE required
by the JHA. Training shall include:
- The required PPE and when and how it should be worn.
- Proper care, maintenance, useful life, limitations,
and disposal of PPE.
- Before performing any work project or activity requiring
PPE, employees need to demonstrate an understanding
of its proper use. Employees are accountable
for accidents and injuries that result from failing to
use or from misusing required PPE.
- Additional training may be necessary. Circumstances
in which supervisors should provide additional training
include:
- Workplace changes that make earlier training obsolete.
- Changes in the PPE to be used.
- Evidence that an employee's knowledge or use of PPE is not adequate.
Specific Requirements—
- Eye and face protection: Appropriate protection
(including side protection) is needed when employees
are exposed to eye or face hazards such as flying
particles, chemical gases or vapors, or potentially
injurious light (such as ultraviolet light). Face shields
can be used in saw operations in addition to safety
glasses or safety goggles.
- Noise protection: To comply with 29 CFR 1910.95,
employees need to be in a hearing conservation program
and wear ear plugs or ear muffs or both when
working with equipment louder than 85 decibels
(Health and Safety Code Handbook chapter 20,
section 21.13b).
- Head protection: All hardhats and helmets should be
designed to provide protection from impact and penetration
hazards from falling objects. Inspect shells
daily for signs of dents, cracks, penetration, or any
other damage that might compromise protection.
Suspension systems, headbands, sweatbands, and any
accessories also should be inspected daily.
- Hand protection: Ensure that hand protection protects
employees from the specific hazards that will be
encountered. Gloves often are relied on to prevent cuts,
abrasions, burns, and skin contact with chemicals that
can cause local or systemic problems (29 CFR 1910.138).
- Foot protection: Footwear designed to prevent injury
from falling or rolling objects and from objects
that could pierce the soles. Heavy-duty, cut-resistant
or leather, waterproof or water-repellent, 8-inchhigh,
laced boots with nonskid soles and adequate ankle support are required for
chain saw use.
- Additional protection: Saw chaps, saw shoulder pads, or other PPE that provide cut resistance or puncture protection.
How Chain Saw Chaps Protect the User
When a chain saw strikes chain saw chaps, Kevlar fibers are pulled into the chain saw's drive sprocket, slowing and quickly stopping the chain.
A back-coated nylon shell covers the Kevlar protective pad inside the chaps. The shell resists water, oil, and abrasions. The protective pad consists of five layers of Kevlar in the following order: woven Kevlar, felted Kevlar, woven Kevlar, woven Kevlar, and felted Kevlar. Kevlar is an aramid fiber similar to the Nomex material used in firefighter's clothing. Kevlar is more resistant to flame than Nomex. When chain saw chaps are exposed to temperatures higher than 500 degrees Fahrenheit, the nylon shell may melt, but the protective Kevlar pad will not burn.
Chain saw users shall wear chaps. Chain saw chaps need to be adjusted properly and worn snug to keep them positioned correctly on the legs. The chaps should provide coverage 2 inches below the boot tops. Proper fit and correct length maximize protection!
Chain Saw Chaps Specifications (6170-4)—The Forest Service has provided cut-resistant protective chaps for chain saw sawyers since 1965. Chain saw chaps have prevented thousands of serious injuries.
The protective pad in the original Forest Service chain saw chaps consisted of four layers of ballistic nylon. Tests of chain saw chaps conducted by the Missoula Technology and Development Center (MTDC) concluded that four layers of ballistic nylon offered protection to a chain speed of 1,800 feet per minute without a cut through. In 1981 Forest Service chain saw chaps were redesigned to improve the level of protection to a chain speed of 2,500 feet per minute without a cut through. The weight of the chaps was reduced by 40 percent, making them more comfortable.
The center monitors chain saw injuries. Because chain saws require right-hand operation, the majority of chain contact injuries occur on the left leg. In 2000, the Forest Service chain saw chaps were redesigned. The new design provides protection to a chain speed of 3,200 feet per minute without a cut through and increases the area of coverage for the left side of the left leg by about 2½ inches, and for the left side of the right leg by about 1½ inches. The higher level of protection and larger area of protection increased the weight of each pair of chaps by 6 to 8 ounces, depending on the length (32, 36, or 40 inches). Only saw chaps provided by the General Services Administration that meet the most current Forest Service specifications (6170-4) are approved for purchase and use by Forest Service employees.

Instructor:
ONLY saw chaps provided by the General Services Administration meeting the most current Forest Service specifications (6170-4) are approved for purchase and use.
Inspection and Replacement
Chain saw chaps need to be inspected and replaced when appropriate. Replace chain saw chaps when:
- The outer shell has numerous holes and cuts.
Holes in the outer shell allow bar oil to be
deposited on the protective pad. The oil acts
as an adhesive, preventing fibers in the pad
from moving freely, decreasing the protection.
- Wood chips and sawdust are evident in the
bottom of the chaps.
- Repairs have stitched through the protective
pad. Machine or hand stitching the protective
pad prevents the fibers from moving freely,
decreasing the protection.
- Cleaning has been improper. Detergents
with bleach additives decrease the protection.
- High-pressure washing has destroyed the
protective pad.
- The chaps have a cut that is more than 1 inch long in the first layer of yellow Kevlar.
Caring for Chain Saw Chaps
Treat your chain saw chaps as a CRITICAL piece of safety equipment. Keep them as clean as possible. Appropriate and timely cleaning reduces the flammability of the chaps and keeps them from soiling your clothing. Do not use your chaps as a chain stop.
Use Citrosqueeze, a commercially available citrus-based cleaning product, to clean chain saw chaps. Citrosqueeze has been tested and approved by Dupont for cleaning Nomex and Kevlar. Do not machine wash or machine dry chain saw chaps.
Cleaning Chain Saw Chaps
Hose and brush off chain saw chaps to remove dirt. Citrosqueeze must be diluted before use.
- For light soiling, use a Citrosqueeze solution
in a spray bottle (mix 1 part Citrosqueeze
concentrate to 10 parts water). Spray solution
on the area to be cleaned and brush the solution
into the chaps with a bristle brush. Wait
one-half hour, thoroughly rinse the chaps
with cold water, and allow them to air dry.
- For heavy petroleum contamination, soak chain saw chaps in Citrosqueeze solution for a minimum of 4 hours, overnight if possible. Brush the chaps with a bristle brush, rinse them thoroughly with cold water, and allow them to air dry. Many pairs of chain saw chaps can be cleaned in a single soak tank. Use 10 to 15 gallons of solution in a soak tank.
A United States manufacturer for Citrosqueeze is:
Emco Industries
2590 Jason Court
Oceanside, CA 92054
Phone: 760-305-5561
Fax: 760-305-5562
Repairs
Clean all chaps before repairing them. Repair cuts and holes in the outer shell as soon as possible to prevent the protective Kevlar pad from becoming contaminated with bar oil and petroleum products.
When repairing damage to the chaps' nylon shell, use a commercially available product called Seam Grip. Seam Grip provides a flexible, waterproof, and abrasion-resistant patch that will prevent petroleum products from contaminating the protective Kevlar pad.
Remove chain saw chaps from service if they have a cut longer than 1 inch in the top layer of Kevlar.
To repair holes and tears in the nylon shell:
- Cut a piece of notebook or printer paper
that extends about 2 inches beyond the
edge of the damage.
- Slip the paper inside the hole or tear so the
paper lies on top of the protective Kevlar
pad.
- Lay the chaps on a flat, level surface and
press the nylon shell onto the piece of paper.
- Squeeze Seam Grip onto the paper and
onto the sides of the tear so there is good
coverage on all sides of the tear or hole.
- Allow the patch to dry for at least 12 hours before using the chaps.
Seam Grip is available through outdoor retailers. To learn of retailers close to you, contact:
McNett Corp.
Box 996
Bellingham, WA 98227
Phone: 360-671-2227
Fax: 360-671-4521
Web site: http://www.mcnett.com
Situational Awareness
The situational awareness checklist can be used for self-assessment during sawing operations. It also can be used for discussions, tailgate safety sessions, or oneon one problem solving (to overcome performance or skill deficiencies) in the field.
Checklist of Personal Safety Considerations and Attitude
- How do I feel about this sawing assignment?
- Am I exercising sound judgment and awareness?
- Is my attitude influencing me to go against my better
judgment (gut feeling)?
- Is my mind on my work project or activity?
- Do I have self-confidence?
- Am I overconfident?
- Am I doing this against my will? (Health and Safety
Code Handbook, chapter 20, section 22.48)
- Is peer pressure a factor?
- Am I professional enough to decline the assignment
and ask for assistance?
- Do I have all of the required PPE and sawing equipment
to do the job safely? Am I committed to using the PPE
and equipment correctly?
- Am I complacent?
- Am I violating any safe operating procedures?
- Do I feel hurried or unusually stressed to get the tree
on the ground or bucked?
- Have all options been considered and discussed with
others?
- Am I in an unfamiliar environment and timber type?
- Do I watch out for my coworkers, contractors, and the public?

Instructor:
PowerPoint presentations, Situational Awareness Exercise for Chain Saw Sawyers and Situational Awareness Exercise for Crosscut Sawyers , have been developed to help students recognize common mistakes that occur during sawing operations. Notes to the instructor are provided with each slide. Show the slides from the PowerPoint presentation that apply to the type of chain saw or crosscut saw course you are presenting. Have students identify safety violations and hazards shown in each slide. You may add slides for your location or to emphasize specific safety items. You may wish to ask some questions from the personal safety considerations and attitude checklist while reviewing the slides with the students. Choose the appropriate questions to generate discussion.
Evaluating the Complexity of the Assignment
The individual sawyer must determine the complexity of the assignment. The evaluation of the complexity of the assignment must be based on the individual sawyer's skill, knowledge, and an understanding of the sawyer's personal capabilities and limitations. The final decision to cut any tree is left up to the individual sawyer. You have the responsibility to say no and walk away from any sawing situation that is beyond your capabilities.
Once the specific situation has been assessed thoroughly, the decision to cut or not to cut will be determined by the following Go, No-Go process.
Deciding Whether To Cut a Tree
Go! I feel comfortable with the sawing situation—I will cut the tree. No Go! I don’t feel comfortable with the situation—I will walk away from the tree.
Never base your decision on what you think you might be able to do. Remember…your safety and the safety of your coworkers depends on the decisions you make.
Sample Job Hazard Analysis (Following pages)
U.S. Department of Agriculture Forest Service | 1. WORK PROJECT/ACTIVITY |
2. LOCATION | 3. UNIT |
---|---|---|---|
JOB HAZARD ANAYLYSIS (JHA) References: FSH 6709.11 and 6709.12 (instructions on reverse) | 4. NAME OF ANALYST | 5. JOB TITLE | 5. DATE PREPARED |
7. TASKS/PROCEDURES | 8. HAZARDS | 9. ABATEMENT ACTIONS (Engineering controls, substitution, administrative controls, PPE) | |
Chain Saw Operation |
Falling objects Flying or spraying objects Noise Sharp or pointed objects
Ergonomics, fatigue |
Qualifications
Elements include:
Personal Protective Equipment (PPE) Employees—Maintain PPE in a clean and fully functional condition. Required PPE:
Required chain saw features:
General equipment:
|
|
Transporting the Saw | Walking
Vehicle | Safety Practices
|
|
Situational Awareness and Sizeup |
Slips, trips, and falls Walking surfaces
Falling objects |
Analyze the cutting area by considering;
Primary and Secondary Escape Routes, and Safety Zones
|
|
Bucking, Brushing, and Limbing | Kickback Bind Rolling logs
Tension |
Procedures
|
|
Felling | Human factors Other hazards (kickback, binds, rolling logs) Darkness |
Procedures
|
|
Handling Flammable and Combustible Liquids | Burns, flammability, and toxic fumes |
Safety Practices
Transportation
Dispensing
|
|
Working Around Poisonous Plants | Accidental contact |
Procedures
|
|
Working Around Insects | Ticks and mosquitoes |
Procedures
|
|
Evacuation Plan (see attached Emergency Evacuation Plan) | |||
10. LINE OFFICER SIGNATURE | 11. TITLE | 12. DATE | |
Field Site EMERGENCY EVACUATION PLAN Work project/activity: General saw use_______________________
|