Nilfisk-Advance GWD 255 Bedienungsanleitung

CAUTION: This Nilfisk vacuum cleaner is not to be used in explosion-hazardous areas, as

serious injury could result.

Under no circumstances may this vacuum cleaner be used safely for the collection of hazardous

or toxic materials unless equipped with a HEPA filter. Be sure to install the HEPA filter according

to Nilfisk’s written instructions.

Do not use this cleaner for the removal of hazardous substances unless you are licensed and/or

certified for this work by the all authorities having jurisdiction.

EMPTYING: If this vacuum cleaner is used to collect hazardous material, do not attempt to open

or empty its contents without personal protective clothing and respiratory protection. This

procedure must be completed in a contained environment. Contact with the cleaner, filters and

all other accessories used when picking-up hazardous materials must be handled according to

federal (EPA, OSHA), state and local regulations valid for the vacuumed substance.

ATTENTION EMPLOYER: Please ensure these instructions for Use are made available and

understood by your employees or any other persons who may use this equipment.

To list all toxic and hazardous materials would be beyond the scope of these instructions. It is

the Employer’s responsibility to identify, for Employee’s and others’ information, hazardous or

toxic materials which may be collected by this equipment. Such information must be

communicated to your Employees and other potential users of this equipment.

Nilfisk-Advance America Inc.

300 Technology Drive

Malvern, PA 19355

Tel: 1.610.647.6420

Fax: 1.610.647.6427

www.pa.nilfisk-advance.com

e-mail: email@nilfisk-advance.com

Instructions/Spare Parts Manual

Nilfisk Model GWD255

Drum Top Vacuum

General Information

BEFORE CONNECTING THE MACHINE TO A POWER SUPPLY, check the electrical rating

plate located on the back of the motor head to see if the rated voltage agrees within 10% of the

voltage available.

DO NOT OIL the motor in this vacuum cleaner. It is permanently lubricated and sealed.

DO NOT OPERATE the vacuum cleaner without any filters. The Dry Filter, Wet/Dry Cartridge

Filter or HEPA filter should be installed to prevent dirt and dust from entering the motors.

This machine is equipped with a thermal breaker to protect the motor and other vital machine

parts from overheating. Should this breaker open, you will have to wait at least 5-10 minutes

before starting the machine again. You must reset the machine by switching the ON/OFF button.

While you are waiting, switch the machine off and unplug it. Check the hose and filters to be sure

that nothing is blocking the flow of air through the machine.

Service Information

UNPLUG THE MACHINE BEFORE PERFORMING ANY MAINTENANCE.

To obtain consistent performance over the life of your vacuum, read through these instructions

and keep them handy for future reference. If you require service, contact the dealer from whom

the vacuum was purchased, or the local authorized Service Station. Always refer to your Service

Station for complete service information. For prompt and complete service information, always

refer to the model, type and serial number indicated on the rating plate on the back of the motor

head.

IMPORTANT

The machine is equipped with a specially designed cord which if damaged, must be replaced by

a cord of the same type. This cord is available at authorized service centers and dealers and

must be installed by trained personnel.

Machine Setup

The GWD255 Drum Top Vacuum can be equipped for either dry or wet/dry collection. Follow the

instructions below before attempting to use your new machine to insure that you have assembled

the unit correctly. NOTE: For wet/dry collection, you must purchase the optional float chamber &

wet/dry cartridge filter assembly (5) shown below.

Dry Collection - Install the dry filter support (2) on the underside of the motor head (1). See next

page for installation instructions. Center the drum ring (4) onto a 30 or 55 gallon drum. Place the

dry filter (3) on top of the drum ring. Carefully place the motor head/filter support onto the drum

ring and clamp the entire assembly together using the latches.

The dry filter should be used when collecting dry powders or fine dust. This washable filter is easy

to clean and will dry much faster than the wet/dry cartridge filter. Small amounts of water can be

collected using the dry filter; however, it is best to allow the filter to dry completely before resuming

the collection of dry powder. An optional HEPA filter can be added in place of the filter support

(see HEPA filter installation).

Wet/Dry Collection - [Note: If the machine is configured for dry collection, remove the dry filter

support (2) and dry filter (3) before attempting to install the float chamber and wet/dry cartridge

filter assembly (5)]. Center the drum ring (4) onto a 30 or 55 gallon drum. Place the float chamber

and wet/dry cartridge filter assembly into the drum ring. Carefully place the motor head onto the

drum ring and clamp the entire assembly together using the latches.

The wet/dry cartridge filter is best used for collecting large amounts of water. The float ball inside

the float chamber will restrict the flow of air in the vacuum hose when the drum is approximately

75% full. This will stop the drum from overfilling and will prevent water from entering the motor

head. The vacuum’s motors are cooled by circulating outside air through the motor head and will

continue to run even after the flow of air in the hose has stopped. The wet/dry cartridge filter can

also serve as a dry filter; however, it is best to allow the filter to dry completely before switching to

dry collection. An optional HEPA filter can be added (see HEPA Filter installation).

Dry

Collection

Wet/Dry

Collection

Dry Filter Support / Optional HEPA Filter

The dry filter support is used to prevent the dry filter from collapsing under vacuum pressure.

The dry filter support and the optional HEPA filter are mounted in the same location under the

motor head. If the optional HEPA filter is used, the dry filter support must be removed. Once

installed, the HEPA filter will serve as the support for the dry filter. If the HEPA filter is removed

from the machine, be sure to reinstall the dry filter support before continuing to use the dry filter.

Installation / Removal of Dry Filter Support

1. To install the dry filter support, align the arrow on the support with the arrow on the underside

of the motor head. Twist the support clockwise until you feel it lock into place.

2. To remove the dry filter support, twist the support counterclockwise until it unlocks from the

motor head. Remove the support and inspect the condition of the foam motor gasket

underneath. If gasket is dirty or damaged, replace it.

Installation / Removal of Optional HEPA Filter

EMPTYING: If this vacuum cleaner is used to collect hazardous material, do not attempt to open

or empty its contents without personal protective clothing and respiratory protection. This

procedure must be completed in a contained environment. Contact with the cleaner, filters and

all other accessories used when picking-up hazardous materials must be handled according to

federal (EPA, OSHA), state and local regulations valid for the vacuumed substance.

1. Before installing the optional HEPA filter, make sure the dry filter support has been removed

from the underside of the motor head. Align the arrow on the HEPA filter with the arrow on the

motor head and twist the HEPA filter clockwise until you feel it lock into place.

2. To remove the HEPA filter, twist the filter counterclockwise until it unlocks from the motor

head. Remove the HEPA filter and inspect the condition of the foam motor gasket underneath. If

gasket is dirty or damaged, replace it.

Underside of GWD255

motor head

Dry Filter

Support

Optional

HEPA

Filter

Installation / Removal of Optional Wet/Dry Cartridge Filter

EMPTYING: If this vacuum cleaner is used to collect hazardous material, do not attempt to open

or empty its contents without personal protective clothing and respiratory protection. This

procedure must be completed in a contained environment. Contact with the cleaner, filters and

all other accessories used when picking-up hazardous materials must be handled according to

federal (EPA, OSHA), state and local regulations valid for the vacuumed substance.

1. To remove the wet/dry cartridge filter, place the float chamber and filter assembly upside-

down on a flat working surface and remove the wing nut and washer that secures the filter to the

float chamber assembly. Hold the filter by the end cap and gently twist the filter back and forth to

separate the gasket from the float chamber. Lift the filter off of the threaded stud and inspect the

float ball cavity underneath to insure that the float ball moves freely. Make sure the filter sealing

surface is clean before installing a new filter.

2. To install the wet/dry cartridge filter, carefully place the filter down over the threaded stud and

center the filter on the float chamber assembly. Reinstall the washer and wing nut. Tighten the

wing nut by hand until the filter bottoms out on the lock nut underneath. The position of the lock

nut is set at the factory and is designed to provide the proper amount of gasket compression for

the filter. Use the figure below to check the position of the lock nut and to readjust the nut if

necessary.

1” to 1-1/8”

Lock

Nut

Cleaning the Dry Filter and Wet/Dry Cartridge Filter

The dry filter is washable. To clean the filter, remove it from the machine and shake off all excess

debris. Wash the filter gently in water. A mild detergent can be used. Allow the filter to dry

thoroughly before reusing. To reduce drying time, replace the filter inside the machine and turn

the vacuum on. The incoming air created by the vacuum will help to dry the filter. Do not collect

any material while the filter is drying.

The wet/dry cartridge filter is also washable. To clean the filter, remove it from the float chamber

assembly and tap against the end caps to remove any loose debris. Hold the filter underneath a

faucet at and angle so that the stream of water falls directly against the wire screen surface on

the inside of the filter. The force of the water should dislodge the dirt from between the folds of

filter. Rotate the filter underneath the stream of water and continue rinsing until the filter is clean.

Be careful not to puncture or damage the filter material. Do not use compressed air to remove

dirt or to dry the filter as this could damage the filter material. Allow the filter to dry thoroughly

before collecting any dry material. To reduce drying time, replace the filter inside the machine

and turn the vacuum on. The incoming air created by the vacuum will help to dry the filter.

The HEPA filter is not washable and no maintenance should be performed on the HEPA filter.

Once the HEPA filter becomes clogged it should be disposed of in accordance with federal (EPA,

OSHA), state and local regulations.

Parts Explosion - Motor head Assembly

Parts List for Motor head Assembly

Filter support (for dry filter only)

M90023 2 Latch Keeper (uses #6 x ¼” screw)

Filter support (for dry filter only)

M90023 2 Latch Keeper (uses #6 x ¼” screw)

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