Preparation For Use; Cleaning Instructions; Maintenance - 3M Versaflo M Series Manual

Note: When regulators and compressed air supply tubes that are exclusively marked
EN1835 are used with M-Series headtops, the system will only meet the requirements of
EN1835.

PREPARATION FOR USE

Check apparatus is complete, undamaged and correctly assembled. Any damaged or
defective parts must be replaced with original 3M spare parts before use.
Scratched or damaged visors should be replaced.
Undertake pre-use checks on Air Delivery Unit assembly as outlined in the appropriate
user instruction.
Remove any protective film from the visor
Headtop adjustment
The headtop should be adjusted to give the best face seal and field of vision.
To adjust the head suspension, rotate the ratchet knob to tighten/loosen the suspension.
A size reducing ratchet comfort pad may be required to improve fit and stability.
Peel off the backing on the comfort pad and attach to the ratchet back plate.
The height on the head and the balance of the headtop can be adjusted by
tightening/loosening the fabric straps to raise/lower the headtop (Fig 1) (M-100/M-200
Series only).
Alternatively, the suspension headband can be adjusted in four locations (Fig 2).
Each position can be adjusted independently to give a custom fit.
OPERATING INSTRUCTIONS
DONNING
1. Select an approved breathing tube (Please see 3M M-Series Reference Leaflet for list
of 3M approved breathing tubes) and connect top end to the headtop assembly. Please
see Technical Specification for breathing tube lengths. (Note: An adaptor may be
required with some breathing tubes – see Reference Leaflet for details).
Inspect the gasket located on the bayonet end of the breathing tube (i.e. the end that
connects to the Powered Air Turbo) for signs of wear or damage. If the seal is worn or
damaged, the breathing tube should be replaced.
2. Connect the bottom end of the breathing tube to the outlet of the Air Delivery Unit.
3. Adjust and fit the Air Delivery Unit as outlined in the appropriate User Instruction.
4. Ensure the visor is in the raised position and fit headtop. Ensure headtop is held firm
and comfortable. If necessary adjust headtop as described earlier.
5. Switch on the Powered Air Turbo or connect the compressed air supply tube to the
Regulator.
6. (A) M-100/M-200/M-300 Series. Lower the visor into the down position by pulling on
the loop located on the face seal so that the face seal is under the chin. Check face seal
is correctly positioned all around the face.
(B) M-400 Series. Lower the visor frame into the closed position. Tighten the adjustable
chord on the inner shroud until there is less than a two finger gap between your skin and
the inner shroud.
^ Always properly assemble and wear both the inner and outer shroud.
^ Ensure the visor frame firmly latches in the closed position. Replace worn or
damaged parts if required.
7. Ensure at least minimum airflow into the headtop is achieved and adjust for maximum
comfort – see appropriate User Instruction.
8 . If needed, lift the visor and adjust the airflow deflector. When fully open, more airflow
is directed across the face. When partially closed, a portion of air is directed towards the
visor. After adjusting, lower the visor back into the down position (M-100/M-200/M-300
Series) or closed position (M-400 Series).
IN USE
Use in the power / air supply off state is not normal, there may be a rapid build up
of carbon dioxide, depletion of oxygen and little or no protection is provided,
vacate the contaminated area immediately.
Take care to prevent the breathing tube from becoming looped around protruding objects.
If this should occur vacate the contaminated area and check apparatus is undamaged.
If during use the air supply stops or is reduced, vacate the contaminated area
immediately and investigate the cause.
The 'in-use' life of the product will vary with frequency and conditions of use.
Headtops used in aggressive environments or outdoors in direct sunlight may need to be
replaced more frequently than headtops used occasionally indoors.
3M recommends a maximum life (shelf-life plus in-use life) of 5 years from the date of
manufacture when stored in accordance with the recommended storage conditions.
Note: Most plastic components have a moulded in date of manufacture and must be
replaced as described above regardless of outward appearance.
^ Do not use beyond the maximum life of the product.
DOFFING
Do not remove the headtop or turn off the air supply until you have vacated the
contaminated area.
1. M-100/M-200/M-300 Series. Grasp the face seal, lift the visor and lift the headtop off the
head.
M-400 Series. Loosen the inner shroud, grasp the visor surround and lift the visor, then
lift the headtop off the head.
2. Switch off the Powered Air Turbo or disconnect the compressed air supply tube from
the Regulator.
3. Unbuckle the waist belt.
NOTE If the respirator has been used in an area that has caused it to become
contaminated with a substance requiring special decontamination procedures it
should be placed in a suitable container and sealed until it can be decontaminated
or discarded.

CLEANING INSTRUCTIONS

^ Use only the cleaning processes and agents described in this section to clean
the product.
Use a clean cloth dampened with a mild solution of water and liquid household soap.
Do not use petrol, chlorinated degreasing fluids (such as trichloroethylene), organic
solvents or abrasive cleaning agents to clean any part of the equipment.
To disinfect use wipes as detailed in Reference Leaflet. Allow product to dry before use.

MAINTENANCE

Maintenance, servicing and repair must only be carried out by properly trained personnel.
^ Use of unapproved parts or unauthorised modification could result in danger to
life or health and can invalidate any warranty.
WHAT WHEN
General Inspection Before use - Monthly if not in regular use
Cleaning After use
^ Helmets subjected to severe impact should be replaced.
Face seal replacement (M-100/M-200 Series) andM-300 Series).
Unhook the elastic loop from the headband and remove the plastic face seal tab from the
'T' attachment points (Fig 3A, 3B and 3C).
Pull the black face seal gasket slowly out of the visor frame (Fig 4).
Install the new face seal by aligning the gasket with the edge of the groove in the visor
frame.
Press the gasket firmly and fully into the groove around the whole visor frame.
Re-attach the plastic face seal tab and elastic loop.
Shroud replacement (M-400 Series).
Pull the black shroud gasket slowly from the headtop (Fig 5).
Release the suspension ratchet from the hole in the outer shroud and pull the large
plastic tab off the air inlet of the headtop.
Re-insert the air inlet into the new outer shroud making sure the plastic tabs are pushed
underneath the headtop shell.
Align the gasket with the edge of the groove and press firmly and fully into this groove
around the whole headtop.
Inner shroud replacement.
Un-zip the inner shroud from the outer shroud and replace.
^ Always properly assemble and wear both the inner and outer shroud.
Head suspension replacement (M-100/M-200 Series).
Remove the face seal as described above. Release the suspension from the headtop by
pulling the height adjustment slot off the peg at each of the four attachment points (Fig 2 ).
Attach the replacement head suspension using the same attachment points and attach the
face seal.
Head suspension replacement (M-300 and M-400 Series).
Remove the face seal as described above (M-300 Series only). With the headtop upside
down, release the suspension by pushing upward on the plastic hangers of the web
straps (Fig 6). Remove the centre web strap by pushing upwards on the plastic hangers.
Attach the replacement centre web strap and suspension by inserting the plastic hangers
into the appropriate slots. Ensure all hangers are fully inserted.
Forehead seal replacement (M-100/M-200 Series).
Unbutton the seal from the attachment point on the suspension (Fig 7). Pull the black
gasket slowly out of the groove. Install the new seal by aligning the gasket as shown in
Fig 8. Press the gasket firmly and fully into the groove. Re-attach the forehead seal to the
head suspension.
Forehead seal replacement (M-300 Series).
Remove current seals from headtop. Gently scrape off any residue by hand. Clean the
surfaces with wipe (see Reference Leaflet) or damp cloth and wipe dry with towel. Ensure
surfaces are completely dry before installing new forehead seals. Ensure replacement
seals adhere firmly to the headtop.
Replacement jaw gasket (M-400 Series).
Pull the black gasket slowly out of the headtop (Fig 9). Align the new gasket with the edge
of the groove in the visor frame. Press the new gasket firmly and fully into the groove.
Airflow deflector replacement.
With the visor in the open position, remove the damaged/broken airflow deflector (use a
tool if necessary) and replace.
Ratchet replacement.
Locate the ratchet attachment points on the suspension (Fig 10A). Press down on each
of the four sections on the attachment points (Fig 10B ). Hold the replacement ratchet so
that the attachment holes are curved in the up position (Fig 10C ). Snap attachment
points onto the suspension.
Visor replacement.
Release the visor frame buttons by pushing the buttons outward from inside the visor
(Fig 11). (Note: For M-400, it may be easier to push button with visor in the up position).
Remove the visor from the frame (Fig 12). Insert the replacement visor into the groove
in the visor frame and align the notches in the visor with the button holes in the frame.
Push the visor frame buttons into the frame to lock the visor in place (Fig 13). The
buttons should make an audible "click" when fully seated in the frame.
^ Ensure visor buttons are firmly secured and flush to the visor frame (Fig 14).
Replace worn or damaged parts if required.
Visor frame/pivot kit replacement.
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