SAFETY NOTE
• Safety rules must be taken into account when using cleaning machine and other electrical equipment.
• Wear appropriate particle dust mask during preparation and respirator during application.
• Wear safety bell when working overhead.
• Always read MSDS (material safety data sheet) for all chemicals before using.
I. PRECLEANING
Pre-cleaning, this as it implies, removes the gross contaminants before starting pure cleaning.
Rubbish such as debris, the piece of broken devices and other solids will be collected manually and bring to gathering point.
With furniture, use feather duster, towels or even vacuum to remove dust on its surface.
II. FINE CLEANING
Fine cleaning or pure cleaning is final step of cleaning process. Care must be taken into account during this step since you may damage cleaned objects if you are careless.
1. Cleaning glass
General note
• Never combine an acid and an alkali to clean glass. One partially neutralizes the other and you waste these neutralized materials. Thus do not mix vinegar and ammonia
• Do not drip alkaline or alcohol solutions on painted or varnished woodwork as it can damage the finish.
• Do not drip cleaning solution on woodwork.
• Avoid washing windows in direct sunlight because they tend to streak and are more difficult to clean.
Cleaning procedure
• Remove spot and the other stain such as dust, paint mark, grease… on glass surface and its frame by using specialized cleaning tools with dedicated chemicals solution such as ammonia, soda, alcohol…
• To remove hard water deposits and some soils, use a weak acid such as vinegar.
• Wring out a cloth, sponge, or chamois almost dry before wiping the glass surface. Dry the wet surface with paper towels, window wipes, or a chamois. Use rubber squeegees with long handles for large or high windows. When using a squeegee, stroke from top to bottom. Wipe the squeegee after each stroke.
• For glass which has had silver electro-deposited on the surface looks particularly unappealing when dirty, using liquid or cream silver-polish on a soft cloth and rubbing vigorously.
2. Cleaning sanitation areas
• Use brush and dedicated chemical solution to remove the spot and stain on all toilet parts (wall, lavabos, toilet seats, water taps….)
• Clean other equipments such as ventilation fans, hot water heaters…
• Clean lighting system such as light bulbs, light tubes…by using a clean cotton dust mop with Waterless Cleaner.
• Cleaning windows, window glass, doors… (see cleaning glass procedure)
• Use floor scraper, floor brush, wet mop and dedicated chemical solution to remove markings, stickers and other dirt such as soil, grease, gum …on floor. Using floor cleaning machine if needed.
• For the floor of toilet areas, see article (3): Cleaning and polishing floor
3. Cleaning carpet, furniture, partition
General note
• Keep windows and outside doors closed at all times during summer operations
• During unoccupied hours, turn exhaust fans off and close outside air dampers
• Keep lights on.
• Keep blinds open.
• Keep windows and doors closed.
• As a general note, carpets must be completely dry within 24 hours to ensure that mold growth does not occur.
Cleaning procedure
• Prepare Room:
Pick up all large objects such as crayons, paper, books, boxes, and other solid before vacuuming.
Use the vacuum to vacuum the area prior to cleaning. Assemble all the equipment and supplies and take them to the area to be cleaned.
• Vacuum carpet, furniture, partition
Go over entire carpet, furniture, partition with the vacuum cleaner to remove dirt, sand, and dust. This procedure requires the movement of all furniture including bookcases, cabinets, boxes, etc. in order to set up the room for cleaning.
• Remove gum and spots
Remove all gum and spots using gum removers and spot removers.
• Cut loose pile
Loose and frail carpet pile shall be cut to prevent the loose end from getting caught in the vacuum cleaner brush or the extractor machine therefore preventing damage to the carpet and to the equipment.
• Vacuum along baseboards and corners
Use a vacuum hose with crevice tool along the edge of the carpet and in corners where the upright vacuum cannot reach. Remove dirt, sand, dust and all foreign matter. Follow up with the upright vacuum.
• Pre-treat carpets
Using a pressure sprayer with a carpet cleaning solution, spray soiled areas such as doorways and traffic lanes before extracting. For very heavy soiled doorways, follow pre-treatment with one or two passes with the extractor machine to loosen dirt for normal cleaning.
• Extract carpets
With the extractor, floor machine, go over entire carpet to clean and remove dirt, soil, grime and stains. Repeat this process as needed in order to restore carpet to a sanitary condition keeping in mind not to go over wet carpet.
• Remove excess water from carpet
Extract as much water as possible using the extractor machine.
• Scrub along baseboards and corners
Use a wedge mop or brush dipped in a pail of diluted cleaner solution and clean along baseboards, corners and other areas where the extractor or floor machine cannot get to.
• Clean carpet doormats
Same with cleaning procedure as carpets, after cleaning, place mats on non-carpeted surface to dry. Do not put mats back on wet carpet floors.
• Turn on floor fans
Set up fans in rooms to assist with the drying process.
• Reset furniture
Put all furniture, cabinets, boxes, etc. back in their original position.
see Floor cleaning procedure on next post.
Source: PACO standard procedure,
Industrial cleaning procedure
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