Dynabrade 61461 User manual

OPERATION AND MAINTENANCE MANUAL
EXPLOSION PROOF / DUST IGNITION PROOF VACUUM CLEANER SYSTEM
ELECTRICALLY OPERATED - IMMERSION SEPARATOR "WET (OIL) MIX"
MODEL 61461 DIVISION 1
EXP1-IT 85 EX CFE HEPA
File number: 090716
Designed and Certified for use in Class I - Group D, T3C
And Class II - Groups E, F & G Hazardous Locations
as defined in the National Electrical Code (NFPA 70)
READ ALL INSTRUCTIONS BEFORE OPERATING,
CLEANING OR SERVICING
IMPORTANT - SAVE THESE INSTRUCTIONS

ROUTINE MAINTENANCE FOR THE IMMERSION SEPARATOR
•This unit must be filled at all times with either mineral oil or any other neutralizing liquid required for
the precipitation of the dust being recovered.
•This unit must be filled up to the green liquid level indicator line shown on the immersion separator.
•Do not exceed the below recommended maximum dust recovery capacity.
Max. dust recovery capacity Volume of liquid required
22 lbs / 10 kg 7.9 gallons / 30 liters
We recommend proceeding with the following maintenance after each use and after a maximum of 8
hours of consecutive use (see section for maintenance and clean-up procedure):
•Before any maintenance shut the vacuum cleaner system off
•Drain the liquid by opening the manifold drain valve
•Discard all recovered material from inside of the immersion separator
•Thoroughly clean all parts of the unit, including the suction hoses
•Once unit is clean reinstall the parts inside the immersion separator and fill it with clean neutralizing
liquid before use
COALESCING FILTER ELEMENTS (CFE)
A Coalescing Filter Element (CFE) is assembled in the vacuum cleaner system at the exhaust port. Verify
if the CFE needs to be replaced as part of routine maintenance.
PLEASE CONSULT THE INSTRUCTION MANUAL AT ALL TIMES

Table of Contents
1.0 INSPECTION ....................................................................................................................2
2.0 APPLICATIONS ...............................................................................................................2
3.0 IMPORTANT SAFETY PRECAUTIONS...........................................................................4
4.0 PRE-USAGE INSTRUCTIONS.........................................................................................5
5.0 PRECAUTIONS FOR THE RECOVERY OF HAZARDOUS MATERIALS ......................7
6.0 GROUNDING INSTRUCTIONS........................................................................................8
7.0TESTING FOR GROUND CONTINUITY..........................................................................9
8.0 FILTRATION SYSTEM...................................................................................................10
9.0 OPERATING INSTRUCTIONS.......................................................................................12
10.0 CLEANING AND MAINTENANCE.................................................................................20
11.0 REPLACING THE COALESCING FILTER ELEMENTS (CFE).....................................25
12.0 ASSEMBLING AND REPLACING THE HEPA FILTER.................................................29
13.0 MOTOR MAINTENANCE ...............................................................................................32
14.0 STORAGE ......................................................................................................................32
15.0 TROUBLESHOOTING: ..................................................................................................32
June 21, 2017

1.0INSPECTION
Carefully unpack and inspect your vacuum cleaner system for shipping damage.
Each vacuum cleaner system is tested and thoroughly inspected before being
shipped; therefore, any damage is the responsibility of the delivering carrier, who
should be notified.
2.0APPLICATIONS
WARNING: A full Process Hazard Analysis has to be conducted by the user
for the recovery of dusts in hazardous locations. The
recommendations in this manual cannot, in any case, supplant
the conclusions of a full Process Hazard Analysis.
Model 61461 / EXP1-85 EX CFE HEPA is an explosion proof / dust ignition proof
vacuum cleaner system certified for use in Class I - Group D, T3C and Class II -
Groups E, F & G Hazardous Locations as defined in the NFPA 70 (National
Electrical Code and Canadian Electrical code).
Model 61461 / EXP1-85 EX CFE HEPA is designed for dry recovery only and for use
with vacuum assisted sanders and grinders. The dust is precipitated into an
immersion bath which neutralizes it.
WARNING: It is the user’s responsibility to determine the appropriate
liquid to use to neutralize the dust.
WARNING: This vacuum cleaner system is designed for the recovery of
dry materials only. Do not recover liquids.
WARNING: Only tools and accessories provided by the manufacturer shall
be used with this vacuum cleaner system. The use of other
tools and accessories may impair safety.

2.1. APPLICATIONS IN POTENTIALLY EXPLOSIVE ATMOSPHERES IN
PRESENCE OF FLAMMABLE GASES, VAPORS OR LIQUIDS
Model 61461 / EXP1-85 EX CFE HEPA can be used in use in Class I, Division 1 -
Group D, T3C which representative gas is Propane, Hazardous Locations, where
ignitable concentrations of flammable gases, vapors or liquids can exist all of the
time or some of the time under normal operating conditions.
WARNING: The maximum surface temperature of the vacuum cleaner (T3C
- 160oC) must always be lower than the ignition temperature of
the gas present in the hazardous location.
WARNING: This vacuum cleaner is designed for the recovery of dry
materials only. Do not recover liquids.
WARNING: It is the user’s responsibility to conduct a risk assessment in
regard to the compatibility of the dusts recovered and the
flammable gases, vapors or liquids and other combustible
dusts present in the hazardous location.
2.2. APPLICATIONS IN POTENTIALLY EXPLOSIVE ATMOSPHERES IN
PRESENCE OF COMBUSTIBLE DUST
Model 61461 / EXP1-85 EX CFE HEPA can be used in Class II - Groups E, F & G
hazardous locations, which representative dusts are metals, coal and grain,
Hazardous Locations, where ignitable concentrations of combustible dust can exist
all of the time or some of the time under normal operating conditions.
Model 61461 / EXP1-85 EX CFE HEPA can be used to recover a maximum of 22
lbs / 10 kg of combustible dusts in 7.9 gallons / 30 liters of neutralizing liquid:
Model 61461 / EXP1-85 EX CFE HEPA can be used to recover combustible dusts
such as:
•Combustible flyings
•Combustible carbonaceous dusts (Carbon black, charcoal, coal or coke
dusts)
•Flour, grain, wood, plastic and chemicals
•Conductive dusts or metal dusts
•Unspent gun powder, sulphur, heat powder, anode powders or any other
explosive dust.
WARNING: It is the user’s responsibility to determine the appropriate
liquid to use to neutralize the dust.
WARNING: DO NOT RECOVER ANY HOT EMBERS OR IGNITED DUSTS.

3.0 IMPORTANT SAFETY PRECAUTIONS
3.1. DEGASSING VENT (OPTIONAL)
A degassing vent is installed on the immersion separator as an optional safety feature
to prevent gas from building up in the immersion separator. Any gas which may develop
escapes through the vent.
IMPORTANT: Refer to separate operating & maintenance instructions for the
degassing vent.
WARNING: It is the user’s responsibility to conduct a risk assessment as
to determine which gas may develop both during operation
and idle time caused by chemical reactions between the liquid
present in the immersion separator and the dusts recovered
and to determine the safety measures to observe in presence
of the concerned gas.
3.2. LAYERS OF DUST
WARNING: Clean regularly the vacuum cleaner system surfaces with a
damped cloth to avoid dust accumulation which could create a
potential source of ignition.
3.3. FLAMMABLE LIQUIDS
WARNING: THIS VACUUM CLEANER SYSTEM IS NOT DESIGNED TO
RECOVER FLAMMABLE LIQUIDS. DO NOT USE THIS VACUUM
CLEANER SYSTEM TO RECOVER FLAMMABLE LIQUIDS.
3.4. IMPORTANT SAFETY PRECAUTIONS IN REGARD TO ELECTROSTATIC
CHARGES GENERATION
When the vacuum cleaner system is used as recommended in this manual it has
been determined that no significant or continuous electrostatic charge accumulation,
which could act as a potential ignition source, can occur.
Nevertheless, it is recommended for safe use not to perform any specific action on
the insulating items assembled on the vacuum cleaner system, such as a continuous
and intense manual rubbing, which could lead to a significant electrostatic charge
accumulation.
The above instructions are to be observed particularly in regard to the paint coating
on the vacuum cleaner system.

4.0PRE-USAGE INSTRUCTIONS
WARNING: It is the user’s responsibility to determine the appropriate
liquid to use to neutralize the dust.
WARNING: This vacuum cleaner system must be properly grounded.DO
NOT OPERATE UNIT WITHOUT A PROPER GROUND SOURCE.
WARNING: Use only original replacement parts from the manufacturer or
from one of its authorized distributors.
WARNING: The vacuum cleaner system is supplied without an electrical
plug. It is the user’s responsibility to install a suitable plug
certified for the hazardous location classification.
WARNING: The plug should be installed by a qualified electrician only.
The plug must be plugged into an appropriate outlet that is
properly installed and grounded in accordance with all local
codes and ordinances.
WARNING: This appliance is for dry use only and is not to be used or
stored outdoors in wet conditions.
WARNING: Before use, operators should be provided with information,
instruction and training for the use of the appliance and the
substances for which it is to be used, including the safe
method of removal and disposal of the material collected
WARNING: The immersion separator should be clean and dry before
operation.
WARNING: Improper use of this vacuum cleaner system will result in the
voiding of the warranty.
WARNING: Proceed with sound measurements in the working zone while
operating the vacuum cleaner. Hearing protection may be
required in accordance with the applicable regulations.

a. Consult local electric code and authority having jurisdiction before operation.
Make sure the electrical installation is compatible with the voltage stated on the
nameplate.
b. Examine the vacuum cleaner system’s power cable for damage (cracking or
ageing) before use. Return to manufacturer for servicing if damaged. Use only
the power cable supplied with the unit or one purchased from the manufacturer.
c. Do not pull vacuum cleaner system by the power cable.
d. Inspect the vacuum cleaner system’s air supply hose before use. Return to
manufacturer for servicing if damaged. Use only air supply hose supplied with the
unit or purchased from the manufacturer.
e. Do not pull vacuum cleaner system by the air supply hose.
f. Turn off the vacuum cleaner system and unplug the power cable before servicing
or storing. Clean and service this vacuum cleaner system only in a NON-
HAZARDOUS LOCATION.
g. Always shut off main air supply and open ball valve on the vacuum cleaner
system to relieve the line pressure before disconnecting the air supply hose.
WARNING: Use caution when connecting and disconnecting
compressed air lines. When static air pressure is suddenly
released, it can cause the airline to whip.
h. This vacuum cleaner system is designed for indoor use only.
i. The appliance shall only be operated when all filters are in position and
undamaged. (See section regarding the filtration system)
j. Connect to a properly grounded outlet only. See Grounding Instructions.
k. Do not use extension cords

5.0PRECAUTIONS FOR THE RECOVERY OF HAZARDOUS MATERIALS
WARNING: Model 61461 / EXP1-IT 85 EX CFE not equipped with a HEPA
filter is not suitable for the recovery of hazardous materials.
DANGER: If the vacuum cleaner is used to recover toxic or nuisance
materials, the following safety precautions must be taken:
a. The vacuum cleaner must be equipped with a HEPA filter.
b. Service and operation should only be carried out by trained personnel.
c. Appropriate clothing and personal protective equipment should be worn when
operating or servicing the vacuum cleaner.
d. Dispose of collected materials responsibly. Follow applicable government
regulations for the disposal of hazardous materials.
WARNING: This appliance contains dust hazardous to health. Emptying
and maintenance operations, including removal of the dust
collection means, must only be carried out by authorized
personnel wearing suitable personal protection. Do not
operate without the full filtration system fitted.
NOTE: Any health hazard associated with the use of this vacuum
cleaner in conjunction with the recovery of asbestos and other
hazardous substances has not been investigated.

6.0GROUNDING INSTRUCTIONS
This vacuum cleaner system must be properly grounded. If it should malfunction, or
breakdown, grounding provides a path of least resistance for electric current to
reduce the risk of electric shock. This vacuum cleaner system is equipped with a
cord having an equipment-grounding conductor. The vacuum cleaner system is
supplied without an electrical plug. It is the user’s responsibility to install a suitable
plug certified for the hazardous location classification.
The plug shall be installed by a qualified electrician only. The plug must be plugged
into an appropriate outlet which is properly installed and grounded in accordance
with all local codes and ordinances. Ensure the fuse/breaker on the electrical panel
is of the correct rating and exceeds the maximum current rating shown on the
nameplate of the vacuum cleaner system. Test the electrical continuity of the
vacuum cleaner system prior use. (See section “Testing for ground continuity”).
WARNING: This vacuum cleaner system for hazardous locations is
equipped with conductive wheels, which allow for the system
to be grounded with the floor. Do not substitute the conductive
wheels and use only replacement conductive wheels supplied
by the supplier.
WARNING: Improper connection of the equipment-grounding conductor
can result in a risk of electric shock. Check with a qualified
electrician or service person if you are in doubt as to whether
an outlet is properly grounded. If the plug will not fit the outlet,
have a proper plug or outlet installed by a qualified electrician.
No adaptor should be used with this vacuum cleaner system.
WARNING: To effectively dissipate static electricity and to ensure spark-
free operation, this vacuum cleaner system must be grounded
during use.
DANGER: Do not operate the vacuum cleaner system if the electrical
outlet is not properly grounded or if the grounding is
questionable.

7.0TESTING FOR GROUND CONTINUITY
WARNING: Test the electrical continuity of the vacuum cleaner before use.
This will ensure that any static electricity that is produced
while vacuuming will be discharged to ground.
WARNING: Use only original replacement parts from the manufacturer or
from one of its authorized distributors.
An ohm-meter is required to perform the following electrical continuity test.
a. Disconnect the power cable from the outlet.
b. Make sure all the latches on the vacuum cleaner system are fastened and the
connecting hose is properly installed between the filter chamber and the
immersion separator.
c. Disconnect the suction hose from the suction intake on the immersion separator.
d. Using an ohm-meter, test the electrical continuity of the vacuum cleaner system
from the ground pin at the end of the power cable to the suction intake on
the immersion separator. A reading between 106ohms and 109ohms or less is
satisfactory to ensure proper grounding and static dissipation.
e. Using the ohm-meter test for the electrical continuity of the suction hose from
one end to the other. A reading between 106ohms and 109ohms or less is
satisfactory to ensure proper grounding and static dissipation.
IMPORTANT: If you obtain a reading higher than what is indicated above it is
possible your vacuum cleaner system could not ensure a
proper dissipation of static electricity. In such case some
maintenance is needed.

8.0FILTRATION SYSTEM
Filter chamber
1. Main cloth filter (Additional pre-filter available as an option)
2. HEPA filter (Efficiency > 99.995% on 0.3 micron.)
3. Filter chamber
ASuction intake



A

Immersion separator
A Suction inlet
B Connection inlet
C Immersion separator
D Drain valve
1 Separator cone
2 Stainless steel screen
3 Sieve basket
4 Coalescing Filter Element (CFE)


9.0OPERATING INSTRUCTIONS
WARNING: Turn off the vacuum cleaner system and unplug the power
cable before servicing.
a. Shut off main air supply and open ball valve on the frame of the vacuum
cleaner system to relieve the pressure in the air supply hoses.
b. Once the pressure has been relieved close ball valve on the frame of the vacuum
cleaner system

Immersion separator
a. Detach the immersion separator

b. Remove the baffle system
c. Remove the sieve basket

WARNING: Before use the inside of the immersion separator, the
baffle system, the sieve basket and the hose should be
clean and dry
d. Fill the immersion separator with liquid. Check the liquid level indicator for the
appropriate level.
WARNING: It is the user’s responsibility to determine the appropriate
liquid to use to neutralize the dust.
e. If liquid foams upon agitation, use a de-foaming agent. Add the prescribed
amount of de-foaming agent into the immersion separator in order to prevent
foam from entering the powerhead.
WARNING: Do not add any foaming agent to liquid. Foam could damage
parts located in the powerhead of the vacuum cleaner system.

f. Put back the sieve basket
g. Put back the baffle system in place.

h. Put back the immersion separator in place:
Filter chamber
i. Disengage the latches and remove the powerhead from the filter chamber.
j. Optional: Install the pre-filter with elastic in the filter chamber by overlapping
the filter’s elastic over the lip of the filter chamber. Make certain that the elastic
covers the entire circumference of the filter chamber.
k. Install the main filter in the filter chamber. Make certain that the filter's gasket
covers the entire circumference of the filter chamber.
IMPORTANT:Do not use this vacuum cleaner if the main cloth filter is not
installed
l. Place the powerhead on the filter chamber and fasten the latches.

m. Connect the airline hose of one or two suction/air hose(s) to the air outlets placed
on the frame of the vacuum cleaner system
n. Connect one or two suction / air supply hose(s) to the suction intake(s). If using
only one suction hose with the vacuum cleaner, close the unused suction intake
with the storage plug to prevent loss of suction.
o. Connect sander/pneumatic tools to the end of the suction hose of one or two
suction/air hose.
WARNING: Always wear eye protection when sanding or grinding even if
using vacuum assisted tools.
WARNING: It is the user's responsibility to determine the type of
protective clothing and respiratory equipment required.
IMPORTANT:Carefully read and follow the instructions provided with the
vacuum assisted sander or grinder to ensure proper operation.
WARNING: This vacuum cleaner is designed for the recovery of dry
material only. Do not recover liquids.
p. Test the electrical continuity of the vacuum cleaner system before use. This will
ensure that any static electricity that is produced while vacuuming will be
discharged to ground. (see section “TESTING FOR GROUND CONTINUITY”)