PEBCO Dustless Loading Spouts User manual

MANUAL
Dustless Loading
&
Self-Contained Dustless
Loading Spouts

i
TABLE OF CONTENTS
1MANUAL OVERVIEW.........................................................................................1
1.1 MANUAL CONTENTS ............................................................................................................................1
1.2 PRODUCT OVERVIEW..........................................................................................................................1
1.3 STORAGE RECOMMENDATIONS........................................................................................................1
1.4 GENERAL INSTALLATION ....................................................................................................................1
1.5 OPERATION...........................................................................................................................................1
1.6 MAINTENANCE RECOMMENDATIONS ...............................................................................................1
1.7 WARRANTY............................................................................................................................................2
2PRODUCT OVERVIEW.......................................................................................3
2.1 STANDARD COMPONENTS .................................................................................................................3
2.2 OPTIONAL COMPONENTS...................................................................................................................4
2.3 SCDLS SYSTEMS..................................................................................................................................5
3STORAGE RECOMMENDATIONS.....................................................................7
3.1 GENERAL REQUIREMENTS.................................................................................................................7
3.2 ELECTRICAL EQUIPMENT ...................................................................................................................7
3.3 SCDLS SPECIFIC EQUIPMENT............................................................................................................8
3.4 ADDITIONAL REQUIREMENTS ............................................................................................................8
4GENERAL INSTALLATION................................................................................9
4.1 RECEIVING INSPECTION .....................................................................................................................9
4.2 INSTALLATION WARNING....................................................................................................................9
4.3 MOUNTING AND INSTALLATION.........................................................................................................9
4.3.1 Installation of Assembled Units..................................................................................................9
4.3.2 Installation of Unassembled Units............................................................................................10
4.3.3 Installation of Dust Collection Systems on SCDLS Units ........................................................13
4.3.4 SCDLS Fan Motor Burn-in Instructions....................................................................................13
5OPERATION .....................................................................................................15
6MAINTENANCE RECOMMENDATIONS ..........................................................16
6.1 MAINTENANCE PROGRAM IMPORTANCE.......................................................................................16
6.2 WEAR PARTS ......................................................................................................................................16
6.3 MAINTENANCE SCHEDULE ...............................................................................................................16
6.3.1Suggested Maintenance Schedule..........................................................................................17
6.3.2 Spare Part Installation Log.......................................................................................................17
6.4 SAFETY PRECAUTIONS.....................................................................................................................17
6.5 GENERAL INSPECTION......................................................................................................................18
6.6 LUBRICATION......................................................................................................................................18
6.6.1 Flange Bearings.......................................................................................................................18
6.6.2 Gear reducer............................................................................................................................18
6.6.3 Drive Motor...............................................................................................................................18
6.6.4 Drive Bearings..........................................................................................................................18
6.6.5 Lifting Cables ...........................................................................................................................19
6.7 ROTARY LIMIT SWITCH ADJUSTMENT ............................................................................................19
6.8 INTERNAL CONE INSPECTION AND REPLACEMENT.....................................................................20
6.14.1 Intermediate Cone Replacement/Inspection (Lower Half).......................................................20

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6.14.2 Intermediate Cone Replacement/Inspection (Upper Half).......................................................21
6.9 CABLE INSPECTION AND REPLACEMENT.......................................................................................21
6.9.1 Lift Cable Inspection and Replacement...................................................................................22
6.9.2 Cone Support Cable Inspection and Replacement..................................................................23
6.10 DUST SLEEVE REPLACEMENT .........................................................................................................24
6.11 SHORTENING OF TRAVEL.................................................................................................................25
6.12 MOUNTING BOLT INSPECTION.........................................................................................................26
6.13 SCDLS FILTER INSPECTION AND REPLACEMENT.........................................................................26
6.14 SCDLS VALVE INSPECTION ..............................................................................................................27
6.14.1 Diaphragm Valve Inspection....................................................................................................27
6.14.2 Pilot Valve Inspection...............................................................................................................28
6.14.3 Drain Valve Inspection.............................................................................................................29
6.15 TROUBLESHOOTING..........................................................................................................................29
6.16 HYDRAULIC SYSTEMS.......................................................................................................................31
7WARRANTY......................................................................................................32

PEBCO® DUSTLESS LOADING/SELF-CONTAINED DUSTLESS LOADING SPOUTS MANUAL OVERVIEW
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1 MANUAL OVERVIEW
1.0 MANUAL CONTENTS
This Section of the manual will familiarize you with the contents of the other manual sections. This
manual is general in approach and may not include everything you want to know about the specifics
of your particular application. Specific technical information can be found on the drawings which are
a part of this manual.
If you have any questions, which cannot be answered by the written material provided, call PEBCO®
[phone] or FAX [phone].
2.0 PRODUCT OVERVIEW
Section 2details both standard and optional components for PEBCO®Dustless Loading Spout
(DLS) and Self-Contained Dustless Loading Spout (SCDLS) units.
3.0 STORAGE RECOMMENDATIONS
Section 3covers recommendations for proper storage. In some cases, scheduling requirements or
construction delays result in the equipment being stored prior to installation. The guidelines
suggested in this section are to aid the installer in selection of proper storage conditions. Because of
variability in site conditions/facilities, proper equipment storage/protection is the responsibility of the
purchaser or his agent.
PEBCO® is not responsible for any equipment damage which results from inadequate
storage/protection efforts.
4.0 GENERAL INSTALLATION
Section 4covers installation and start-up procedures. Pay special attention to the !!! WARNING !!!
in Section 4.2. Generally, installation of DLS systems requires working aloft, and may require
applying power to the unit to move between the retracted and extended positions of the spout.
Extreme care and good safety procedures should be used whenever working at height or around
moving equipment.
5.0 OPERATION
Section 5is designed to familiarize you with the operation of the PEBCO®Dustless Loading Spout.
6.0 MAINTENANCE RECOMMENDATIONS
Section 6covers recommendations for maintenance procedures. Information is presented on
lubrication, rotary limit switch adjustment, internal cone inspection, cable inspection, and outer sleeve
replacement. Maintenance specific to SCDLS units is also presented.

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7.0 WARRANTY
Section 7is PEBCO®’s Warranty to the purchaser of Dustless Loading/Self-Contained Dustless
Loading Spouts.

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2 PRODUCT OVERVIEW
The PEBCO®Dustless Loading Spout (DLS) is a device of two or more conical sections that bridges the gap
between a load-out controls device such as a cutoff gate, conveyor, etc. and a hopper, truck, railcar or barge. The
DLS is retracted to allow the moveable transport device to be positioned and then it is lowered to facilitate dust-
free loading of the bulk solid product. Product is dropped into the inlet cone and travels down the cone assembly,
out of the outlet cone, and into the container being loaded. As product moves down the spout, dust is contained in
the dust sleeve encasing the cone assembly, and routed to a dust collection system through an outlet in the tub.
2.1 STANDARD COMPONENTS
The following components can be found on all PEBCO®DLS units:
DRIVE MOTOR AND GEAR REDUCER
The motor and gear reducer are mounted to the outside of the housing assembly to provide easy
access. The motor is powered by a three phase power source and is engaged by a command from
the operator. Motor and gear reducer combinations vary depending on the application; see the
manufacturer’s component data in the associated cut sheet for detailed manufacturer data.
DRIVE SHAFT AND LIFT CABLES
The drive shaft is supported by flange bearings mounted on either side of the housing assembly and
raises and lowers the spout by way of three lifting cables which run from cable drums on the shaft to
the outlet assembly. For lifting cable inspection and replacement, refer to Section 6.9.1.
ROTARY LIMIT SWITCH
The rotary limit switch is connected to the shaft by a chain drive. The rotary limit switch dictates the
limits of travel for the DLS by dropping out the motor contactor to stop the motor when the adjustable
cams within the switch reach positions which correspond to the upper and lower limits of travel.
These limits can be changed as desired by adjusting the switch; for more information on rotary limit
switch adjustment, see Section 6.7. Refer to the associated cut sheet for manufacturer data.
INLET CONE
The inlet cone is contained within the housing, and connects the spout to the equipment above by
way of a sealed flange. Material enters through the inlet cone and is passed down either to the
outlet assembly or an intermediate cone assembly.
CONE SUPPORT CABLES
The cone support cables ensure that each cone is suspended level and at the correct height. The
cable runs from the housing assembly to the outlet assembly with intermediate cones connected
to the cable via U-bolt cable clamps. For cone suspension cable inspection and replacement, see
Section 6.9.2.

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OUTLET ASSEMBLY
The outlet assembly is held at the desired height by the lifting cables, and consists of a housing,
outlet cone, a hatch adapter for loading sealed containers or an outlet skirt for loading open
containers, along with optional equipment.
FABRIC REINFORCED DUST SLEEVE AND RINGS
The fabric reinforced dust sleeve serves to contain dust and connects from the housing assembly to
the outlet assembly. Depending on the application, it may be constructed from Coverlight, neoprene
coated nylon, or silicone coated fiberglass. Reinforcing rings are spaced along the sleeve, allowing it
to maintain shape. For dust sleeve replacement, see Section 6.10.
DUST COLLECTOR OUTLET
The dust collector outlet may be located on the side or the top of the housing assembly, and serves to
route dust from the spout to a dust collection system.
2.2 OPTIONAL COMPONENTS
In addition to the standard components mentioned in Section 2.1, PEBCO®DLS units are also
available with the following:
INTERMEDIATE CONE ASSEMBLY
Depending on the length of travel, the DLS unit may contain an intermediate cone assembly between
the inlet and outlet cones. Intermediate cones are attached to the cone support cables using U-bolt
cable clamps. When the spout is retracted, these cones compactly nest inside one another. When
the spout is extended, the cones telescope to direct the product into the container being loaded. For
cone inspection and replacement, refer to Section 6.8.
SLACK CABLE SWITCHES
Slack cable switches are mounted inside the housing assembly and are held in a closed position
when the cable is taut. When the cable becomes loose due to the outlet assembly hitting an
obstruction, the slack cable switch will move to an open position, which will either stop the motor or
send a signal to the operator. See the associated cut sheet for manufacturer data.
AIR VIBRATOR
An air vibrator may be installed on the outlet assembly to assist in material flow. Air vibrators must be
connected to filtered, regulated, and lubricated air with pressure not to exceed 80 psi. Air is supplied
via a coil hose which stretches between the housing assembly and the outlet assembly. DO NOT
connect air vibrators to the same air supply as SCDLS headers; vibrator air must be lubricated, while
header air must be dry. For more information, see the manufacturer’s data provided in the associated
cut sheet.

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TILT SWITCH AND JUNCTION BOX
Tilt switches are used to indicate the height of the material or a choked loading condition, and are
mounted on a chain beneath the outlet assembly. When the switch is pushed away from the vertical
position by the material pile, the switch sends a signal to the operator, indicating the spout should be
raised until the switch resets. Tilt switches are available in carbon steel, stainless steel, and PVC,
with an optional float ball for liquid applications. For specific manufacturer data, see the associated
cut sheet.
PENDANT CONTROL (WIRED OR UNWIRED)
PEBCO® can provide a pendant control for the unit if desired. Controls are engineered to meet
the needs of the customer, and vary in configuration depending on the application. See the
associated cut sheet for specific manufacturer data.
MOTOR BRAKE
Motor brakes are used to assist in stopping of the spout. DLS units without motor breaks rely on
friction in the gear reducer to stop the spout. If more precision is required, motor brakes are used so
that when the motor is not receiving a signal to operate, the brake engages.
2.3 SCDLS SYSTEMS
Unlike standard DLS systems, Self-Contained Dustless Loading System (SCDLS) are manufactured
with a dust collection system installed directly onto the housing assembly. This eliminates the need
for a stand-alone dust collection system, and also provides an easy way to put material back into the
product stream.
During the loading process, the dust filters, which are positioned within the spout, are periodically and
automatically purged by air blasts from the diaphragm valves. This forces product collected on the
filters back into the product stream and into the vehicle or container being loaded.
In addition to the components of the standard DLS system, the SCDLS contains the following:
AIR PLENUM
The Air plenum is a sealed chamber located directly above the housing assembly. Air is drawn into
the plenum through the filters, and expelled through the exhaust fan. The plenum also contains
inspection panels for easy access to the filters for inspection and replacement.
HEADERS FOR COMPRESSED AIR
The headers on an SCDLS serve as an air reservoir for the diaphragm valves. Air is supplied to the
headers through one of the fittings located on each header. Use 70-80 psi of clean dry air to charge
the headers.
DIAPHRAGM VALVES
Diaphragm valves pulse air onto the filters during operation to remove product buildup and force it
back into the product stream. The valves are located on top of the plenum to allow for easy access,

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and are pulsed automatically by the dust collector timer controller during operation. For more
information on diaphragm valves, refer to the manufacturer data in the associated cut sheet. For
maintenance, see Section 6.14.1.
MULTI PLEATED DUST COLLECTION FILTER PACK
The dust collection filters are mounted between the tub and the plenum and can be reached via the
access panels on the plenum. Filters remove product from the airstream before it enters the plenum,
allowing air to be routed directly out of the plenum into the atmosphere without further need for
processing. Each filter can accommodate a volume flow rate of 500 CFM. Manufacturer data can be
found in the associated cut sheet; for filter inspection and replacement, see Section 6.13.
ENCLOSURE CONTAINING THE DUST COLLECTOR TIMER CONTROLLER
The dust collector timer controller is located inside an enclosure on the side of the unit. The timer
controller regulates the purge sequence by signaling the pilot valve connected to each diaphragm
valve, controlling both the time between each purge and the duration of each purge. The controller
also monitors the pressure differential across the filters for maintenance purposes. Manufacturer
data can be found in the associated cut sheet.
SOLENOID DRAIN VALVE
The drain valve is connected to each header and serves to remove condensation accumulated in the
headers. After each purge cycle, the dust collector timer controller opens the drain valve, which
evacuates the water from the system. Manufacturer data can be found in the associated cut sheet.
For maintenance, see Section 6.14.3.
EXHAUST FAN
The exhaust fan is mounted to the top of the plenum and serves to drive air from the spout and the
container being loaded through the filters and out into the atmosphere. In some cases, air may be
ducted from the outlet of the exhaust fan; however, this is usually not necessary. Do not duct the
outlet air unless the system was originally designed with this specification in mind, as ducting the
outlet air induces a higher load on the exhaust fan. The volume flow rate is controlled by means of a
damper on the outlet of the fan. Use care when adjusting the volume flow rate to ensure that the
maximum flow rate for the filters and the maximum load on the exhaust fan motor is not exceeded.
See the manufacturer’s component data in the associated cut sheet for more information; for
exhaust fan burn-in instructions, see Section 4.3.4.

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3 STORAGE RECOMMENDATIONS
3.1 GENERAL REQUIREMENTS
If PEBCO®equipment is to be stored for a period of time longer than three weeks prior to installation,
the following procedures are recommended:
•Equipment should be stored in enclosed areas. Indoor storage area should be clean and dry.
Storage should be off of the floor, preferably on skids or pallets.
•Storage area should be free from rapid temperature changes. If necessary, an additional heat
source should be used.
•Storage area should not subject equipment to vibration.
•All interior and exterior surfaces of the spout must be thoroughly coated with Cosmoline. Any
unpainted surfaces, such as shafts, rollers, bearings, and pins should be given special
attention to ensure a thorough covering of Cosmoline.
•Storage must be above any possible water or snow line.
•All bearings must be fully charged with grease.
•Periodic inspections should be made, checking the covering, any moisture present,
cleanliness and general appearance to ensure the absence of corrosion and the integrity of
the Cosmoline coating.
•If outdoor storage is necessary, the equipment should be fully covered with weather-proof
material, vented so as not to trap moisture, but drip-proof so the water cannot enter or splash
up into it.
3.2 ELECTRICAL EQUIPMENT
•All electrical device enclosures must be opened and coated with CRC Stor & Lube.
•All electrical connections (terminations) must be coated with CRC Stor & Lube.
•All electrical openings must be capped or plugged as necessary to be sealed to atmosphere.
•Minimum Field Wiring 16ga AWG.
•Electrical junction boxes included with the equipment should be opened and any exposed
wire and terminations should be coated with CRC Stor & Lube. Open conduit connections
should be plugged or capped to atmosphere and the enclosure door should be securely
tightened to ensure sealing integrity.

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3.3 SCDLS SPECIFIC EQUIPMENT
•Headers should be sealed from the environment, and inspected for rust or corrosion prior to
installation if stored for a period longer than six months. If rust is found, it must be removed
before the unit is installed.
•Filters should be stored in an area protected from pests and excess humidity. Temperature
should not exceed 100°F (38°C). Do not stack. Storing filters mounted inside the assembly is
acceptable so long as all these conditions are satisfied by the storage area for the assembly.
•Hose assemblies must be removed & capped/plugged.
3.4 ADDITIONAL REQUIREMENTS
Prior to long-term storage, and start-up after storage, please refer to any and all applicable
instructions published by individual component manufacturers.

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4 GENERAL INSTALLATION
4.1 RECEIVING INSPECTION
Upon receipt of the equipment, a thorough inspection of the equipment should be made. The
following points should be noted:
•Condition of the shipping crate/skid that would indicate rough handling or possible equipment
damage
•Condition of the equipment itself; obvious dents, bent flanges, loose or broken accessories, oil
leaks, etc.
•Check packing list to see if any parts were shipped loose, and if they are packed with the
equipment.
REPORT ANY DAMAGE OR MISSING COMPONENTS TO THE DELIVERING CARRIER.
4.2 INSTALLATION WARNING
!!! WARNING !!!
Installation requires that the unit be moved between its retracted and extended positions. Before
repositioning the unit, ensure that all personnel are standing clear of the unit. After repositioning of the unit,
fully isolate the unit from all power sources.
Follow all local fall protection/falling object protection requirements whenever working aloft. Anchor all
large equipment that is to be installed BEFORE lifting. If a Loading Spout Positioner system is
present, this system should be fully isolated from all power sources before any lifting systems are
positioned. Moving the unit while lifting systems are in place may result in equipment damage or
tipping of the lifting system.
4.3 MOUNTING AND INSTALLATION
PEBCO® Dustless Loading Spouts (DLS) are normally shipped in a nearly retracted position and
suspended from a wooden frame. Larger units, however, are often shipped with subassemblies on
separate skids. Section 4.3.1 covers installation for assembled units. For large units, see Section 4.3.2.
SCDLS units mount in the same way as DLS units; however, some additional steps will be required.
These steps can be found in Section 4.3.3.
4.3.1 Installation of Assembled Units
1. Remove the bolts and straps holding the DLS in the shipping frame.
NOTE:Do not remove packing or skid until the spout has been bolted in place, with
provided bolts, nuts, and lock-washers secure tightly.

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2. Check the alignment of the bolt holes on both the mating flange and the support steel
to determine if the bolt holes will match correctly with the unit. Do not attempt to
correct alignment by drilling through the flange, as this will possibly weaken the
flange and result in a poor seal. Check the mating flange for level.
3. Install the appropriate gasket material or sealant on the top flange surface of the
housing.
4. Using a fork truck or other appropriate equipment, lift the spout to the mating flange.
5. Install nuts and washers. Use only a high grade hex head bolt with an equal grade of
nut, flat and lock washer. Lock washers and/or a thread locking material should be
used. Angle supports on top of the housing assembly must be utilized for additional
support to the hopper or other rigid steel structure to ensure that the housing assembly
is installed securely; the unit CANNOT be supported solely by the flange.
6. The skid and packing can now be removed.
7. Install the dust collection hose/pipe to the side outlet of the housing using an appropriate
gasket material. (Not necessary for SCDLS units)
8. Electrical connections to the drive motor, rotary limit switch, and optional equipment can
now be made. Refer to the provided wiring diagrams for more information.
!!! WARNING !!!
Until the Rotary Limit Switch has been checked to ensure proper adjustment, DO NOT
FULLY RETRACT THE SPOUT, as over retracting may cause damage to the unit.
PEBCO® DLS systems are shipped extended approximately 4 inches from the fully
retracted position to protect against over retracting during installation.
9. Check the motor for correct rotation.
10. Continue to Section 6.7 for rotary limit switch adjustment.
11. If the DLS contains automatic-raise or level switches, they should be tested by manually
tilting the sensing probe. Make sure that this activates the spout motor or relays a signal
to the operator.
12. For SCDLS units, continue to Section 4.3.3.
NOTE:After one week of service, it is recommended that a complete check of all
fasteners be made to ensure tightness.
4.3.2 Installation of Unassembled Units
Large DLS units are generally shipped with subassemblies on separate skids as follows:
•Housing assembly, including drive assembly and lift cables wound on single-groove lift
pulleys
•Outlet assembly

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Figure 1: Cone Assembly Placement
(a) Cone Support Tabs
(b) Discharge Cone
(a) (b)
•Cone assembly, including cone support cable harness
•Outer flexible sleeve
•Miscellaneous parts including: fasteners, cable fittings, and other items as identified on
the parts list or packing list.
Installation and assembly of the unit is completed as follows:
1. Remove the bolts and straps holding the DLS in the shipping frame.
2. Check the alignment of the bolt holes on the housing assembly to determine if the
bolt holes will match correctly. Do not attempt to correct alignment by drilling through
the flange, as this will possibly weaken the flange and result in a poor seal. Check the
mating flange for level.
3. Install the appropriate gasket material or sealant on the top flange surface of the
housing assembly.
4. Using a fork truck or other appropriate equipment, lift the housing assembly to the
mating flange.
5. Install nuts and washers. Use only a high grade hex head bolt with an equal grade of
nut, flat and lock washer. Lock washers and/or a thread locking material should be
used. Angle supports on top of the housing assembly must be utilized for additional
support to the hopper or other rigid steel structure to ensure that the housing assembly
is installed securely; the unit CANNOT be supported solely by the flange.
6. Install the dust collection hose/pipe to the side outlet of the housing using an appropriate
gasket material. (Not necessary for SCDLS units)
7. Position the outlet assembly
beneath the housing assembly at
the published extended length.
The junction box for the product
sensor probes, if provided, should
be aligned with the junction box
for that purpose on the housing
assembly. Align the lift cable
attachment points on discharge
with the sheaves in the housing
assembly.
8. Place the cone assembly in the
discharge cone as shown in
Figure 1, aligning the cone
support tabs with tabs on
discharge cone. Attach the cone
support cables to the discharge
cone.

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Figure 2: Cable Threading
(a) Slack Cable Limit Switch
(b) Cable Guides
(b)
(a)
9. Place the flexible sleeve over the cone stack and onto outlet assembly. Do not connect
to discharge at this time. The sleeve should be aligned such that the cable guides on the
sleeve are aligned with the lift cable attachment points on the outlet assembly.
10. Electrical connections can now be made to the drive motor, rotary limit switch, and
optional equipment. Refer to the provided wiring diagrams for more information.
a. If the pre-wire option has been purchased, all components on a sub-assembly, with
the exception of the motor and brake, are wired to a common junction box on the
sub-assembly. Components located on the outlet assembly are to be connected to
appropriate terminals in the junction box on the housing assembly. This is to be
done via the multiple-conductor cable festoon on the flexible sleeve or the cable reel
provided for this purpose. All other control terminations are made in the junction box
located on the housing assembly.
b. If the pre-wire option has not been purchased, the customer or his representative is
responsible for terminations at the various components, according to the drawing
provided. Connections for the tilt switch are located within a small terminal box
located on the outlet assembly. The rotary limit switch and slack cable limit switch
are located on the housing assembly, and should be wired through conduit suitable
for the expected environment. The motor and brake should be wired through a
separate conduit, as these are high-voltage, three-phase components.
11. Check the motor for correct rotation.
!!! WARNING !!!
Until the Rotary Limit Switch has been checked to
ensure proper adjustment, DO NOT FULLY
RETRACT THE SPOUT, as over retracting may
cause damage to the unit.
12. Lower the lift cables a minimum of 6 inches past
the attachment points on the outlet assembly,
threading each cable as seen in Figure 2: (a)
through the slack cable limit switch arm (if
provided), and (b) through the cable guides on the
flexible sleeve.
13. Attach the lift cables to the outlet assembly using
the lifting eyebolts, making necessary
adjustments to ensure the discharge will hang
level.
14. Continue to Section 6.7 for rotary limit switch
adjustment before proceeding to step 15.
15. Using the drive assembly, raise the outlet
assembly until the cone support cable harness
can be connected to the housing assembly using
the quick-links provided. Lower the discharge to

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the fully extended position to ensure the cone assembly will hang straight.
16. Raise the outlet assembly until the outer flexible sleeve can be connected to the housing
assembly. Insert the top ring into the tub on the housing assembly and tighten the
retaining bolts.
NOTE: It may be necessary to push the seal material in with a flathead screwdriver or similar
tool, as it has a tendency to bulge out of the tub.
17. Once the sleeve is secure, lower the assembly to the fully extended position. Connect
the sleeve to the outlet assembly, making sure there are no twists.
18. Raise and lower the spout several times to test the operation of the spout. If the outer
sleeve develops a twist, loosen the lower connection and straighten the sleeve while
extended. Make any necessary adjustments to the lift cable to level the outlet assembly.
19. If the DLS contains automatic-raise or level switches, they should be tested by manually
tilting the sensing probe. Make sure that this activates the spout motor or relays a signal
to the operator.
20. For SCDLS units, continue to Section 4.3.3.
NOTE:After one week of service, it is recommended that a complete check of all
fasteners be made to ensure tightness.
4.3.3 Installation of Dust Collection Systems on SCDLS Units
1. Check all air tubing for any signs of damage, and tool check each connection to ensure
tightness. Connections are tightened at the factory, but can become loose during shipping.
2. Connect the Dust Collector Timer Controller to power according to the provided wiring
diagrams.
3. The air supplied to the dust collection system should be clean and dry, as moisture and
contaminants can severely damage the filters and valves.
4. Connect the air supply to the header. Headers should be pressurized at 70 to 80 psi; over-
pressurizing could cause the filters to fail. It is recommended that a cutoff valve be installed
immediately before the header for maintenance purposes.
NOTE: Although each header contains an inlet for compressed air, it is only necessary to
connect the air supply to one header
4.3.4 SCDLS Fan Motor Burn-in Instructions
Before beginning the burn-in procedure, review the electrical connections to make sure the unit
has been wired properly. Check each connection for snugness and placement, and ensure that
overloads are properly set.

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Burn-in should take place with the damper closed; this will ensure minimum amp draw and
reduce the risk of damaged equipment. If for any reason it is required that the damper be
opened, DO NOT open the damper more than 25% of the way from the fully closed position.
Fully opening the damper will cause overload and may damage the system.
Once burn in is complete, the damper may be adjusted as necessary to obtain the desired
volume flow rate by measuring the static pressure at the outlet and referencing that
measurement to the fan curve provided in the manufacturer’s component data. Use care when
adjusting the volume flow rate to ensure that the maximum flow rate for the filters and the
maximum load on the exhaust fan motor is not exceeded.

PEBCO® DUSTLESS LOADING/SELF-CONTAINED DUSTLESS LOADING SPOUTS OPERATION
15
5 OPERATION
!!! WARNING !!!
Before beginning a loading operation, make sure the area around the spout is clear of personnel. As direct
exposure to the product stream can result in seriously injury or death.
1. After the vehicle/container has been positioned with its hatch directly below the spout, open the
vehicle/container hatch.
2. Once the hatch has been opened, begin lowering the loading spout to the vehicle or container opening.
3. The dust extractor should be turned on at this point.
4. Continue to lower the outlet assembly until it is firmly seated in the vehicle/container hatch.
5. Start the product feed. The vehicle or container should be properly filled with little or no visible dust.
6. When the vehicle is full, raise the spout completely and turn off the dust extractor. This completes the
loading cycle.

PEBCO® DUSTLESS LOADING/SELF-CONTAINED DUSTLESS LOADING SPOUTS MAINTENANCE RECOMMENDATIONS
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6 MAINTENANCE RECOMMENDATIONS
6.1 MAINTENANCE PROGRAM IMPORTANCE
An inspection and maintenance program should be established to ensure the successful operation of
the equipment during its working life.
One of the most important aspects of any maintenance program lies in establishing a good set of
operating records. Daily log sheets should be set up to record all important operating parameters of
the equipment. Inspection at predetermined intervals is essential. The frequency of inspections may
vary with operating conditions and the environment of operation. Complete records will also indicate
spare parts used and on-hand, and the historical details of any maintenance or overhaul which takes
place.
The purpose of a good maintenance program is to achieve maximum operating performance while
holding down maintenance costs.
6.2 WEAR PARTS
Parts exposed to high frictional forces, whether due to the sliding of two parts against each other, or
due to exposure to the product flow, are expected to wear and may need to be replaced. PEBCO®
does not consider the wearing of Seals, Cones, Lift Cables, Cone Suspension Cables, Dust Sleeves
or SCDLS Filters due to friction to be a defect as covered under the product warranty, and
replacement of said parts is considered to be the responsibility of the purchaser.
6.3 MAINTENANCE SCHEDULE
Scheduled inspection of equipment and active preventive maintenance are essential for optimum
performance and long equipment life. This section lists suggested schedules for maintenance.
However, actual service conditions and environment greatly affect equipment reliability and such
schedules should be adjusted as necessary to suit the specific requirements of the installation.
Additional maintenance may be required for components not manufactured by PEBCO®; see the
manufacturer’s component data for manufacturer recommendations.

PEBCO® DUSTLESS LOADING/SELF-CONTAINED DUSTLESS LOADING SPOUTS MAINTENANCE RECOMMENDATIONS
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6.3.1 Suggested Maintenance Schedule
Weekly
Monthly
Quarterly
Yearly
Visually Check
for Loose
Hardware
□
Grease Flange
Bearings
□
Tool Check for
Loose
Hardware
□
Check all Wiring
for Fraying or
Damage
□
Check Air
Pressure ( Air
Vibrator)
□
Tool Check Air
Vibrator Mounting
Bolts
□
Check Gear
Reducer Oil
Level
□
Inspect Mounting
Bolts
□
□
□
Check Chains
□
□
□
□
Grease Drive
Bearings
□
□
□
□
Check Electric
Motors
□
□
□
□
Check Limit
Switch(es)
□
□
6.3.2 Spare Part Installation Log
Date
Part
Qty.
Comments
6.4 SAFETY PRECAUTIONS
!!! WARNING !!!
Before conducting any maintenance on or around the system, it should be fully isolated from all
power sources. Failure to do so may result in injury or death.
Follow all local fall protection/falling object protection requirements whenever working aloft. Anchor all
large equipment that is to be removed/installed BEFORE removing/lifting. If a Loading Spout