Note: Flag off area where blasting equipment is positioned and blasting
operations are performed to keep unauthorized personnel out of harm’s way.

Note: Use whip check to secure at that connection

Note: Refer to Appendix D for sizing clarification

! CAUTION: When blowing out airline, have one person hold the hose securely while a second person cracks the valve open just enough to clear hose.

Note: Always use whip check and safety pins or wires

Note: Use whip check and safety pins or wires at each connection

Note: Ensure hoses are run as straight as possible and avoid tight curves.

Note: Ensure there is a sufficient amount of hose to do work efficiently

Note: Ensure whip has proper size nozzle

Note: Refer to Appendix D for nozzle sizing clarification

Note: Leave slack in control line to allow for movement between the two hoses

Note: Leave slack in control line to allow for movement between the two hoses

! CAUTION: Always esure a CO monitor is in place to verify good air quality for breathing.

! CAUTION: When blowing out airline, one person should hold the hose securely while a second person cracks the valve open
just enough to clear hose of any debris.

Note: Use whip check and safety pins at all times

Note: This requires manually moving 80 lb bags of blast media, so it is important to ensure there are no tripping hazards between the blast media and the blast pot.

Note: Adjustment may need to be made during blasting startup.

Note: Ensure a screen is in place to prevent unwanted objects from entering
blast machine

Note: Do not fill media above plunger to prevent leaking and damage.

! CAUTION: Blast media is heavy. Use proper lifting
techniques to avoid injury.

! CAUTION: To avoid serious injury never put your
hands or fingers in the plunger area of the blast machine.

Note: Refer to Appendix E for hand signal communication gestures,
blaster must give either a verbal or hand signal confirmation they are
ready.

! CAUTION: The system is now live and will be controlled by the blaster until the manual control at the blast machine is turned OFF.

! CAUTION: If any problems arise, immediately turn off manual control at blast machine.

Note: Blaster may give hand signals to turn grit up or down. Two fingers pointing up signals more media. Two fingers pointing down signals less media.

Note: A surging sound indicates too much blast media. A whistling sound indicates too little blast media.

Note: There are typically 2 ways for the blaster to signal they need a choke.

• Hand up to throat in a “choking” gesture
• Turning on and off the hose 3 times in a row

Note: First attempt, choke for approximately 2 seconds. If that does not clear the system, follow up with longer chokes until normal blasting resumes.

• Making sure there is a clear path for the blaster
• Assisting blaster with access (ex. Move ladders)
• Managing hoses as blaster moves
• Maintaining a tidy work area
• Monitoring to ensure unauthorized persons do not enter work area.
• Monitoring blasting process as another set of eyes to ensure we are only blasting what is required and not
  causing damage or disruption to other persons or equipment.

! CAUTION: Safety of Mandros personnel is our primary concern. Never enter an unsafe environment to assist
blaster.

Note: Ensure a screen is in place to prevent unwanted objects from entering blast machine.

Note: Do not fill media above plunger to prevent leaking and damage.

! CAUTION: Blast media is heavy. Use proper lifting techniques to avoid injury.

! CAUTION: NEVER turn off breathing air system when in use by blaster. Verify blaster is in safe location with blast hood off before shutting down.

Note: If long sections of hose are utilized or staged where rolling up entire
hose is inefficient, only roll up working sections to allow for efficient work and good housekeeping.

Note: This should be done during the last part of blasting.

Note: If any hoses are defective or need repairs, either repair in the field
(preferable) or mark with red tape for repairs at the shop.

Note: If returning to shop, ensure that everything gets put away in its proper
place.

Note: Loading heavy equipment may require additional personnel or lifting equipment (forklift).

Note: Ensure that the loads are secure for transportation.