Dorner AquaPruf Ultimate CE 7400 Series User manual

For other service manuals visit our website at:
www.dorner.com/service_manuals.asp
DORNER MFG. CORP. INSIDE THE USA OUTSIDE THE USA
P.O. Box 20 • 975 Cottonwood Ave. TEL: [phone] TEL: [phone]
Hartland, WI 53029-0020 USA FAX: [phone] FAX: [phone]
851-650 Rev. B
7400 Ultimate Series CE
Curved End Drive Conveyors
Installation, Maintenance and Parts Manual

851-650 Rev. B 2 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Table of Contents
Introduction....................................................................... 2
Warnings – General Safety ............................................... 3
Product Description........................................................... 4
Specifications.................................................................... 4
Specifications ................................................................ 4
Conveyor Supports........................................................ 5
7400 Series Frame Section Numbers ............................ 5
Straight Infeed Module / ldler Module ...................... 5
Straight Intermediate Module.................................... 5
Curve Module ............................................................ 5
Straight Exit / Drive Module ..................................... 5
Installation......................................................................... 6
Required Tools .............................................................. 6
Recommended Installation Sequence............................ 6
Conveyor Installation .................................................... 6
Frame Section Connection......................................... 6
Stand Installation ....................................................... 7
Tail Assembly Installation......................................... 8
Drive Tail ............................................................... 8
Tip Up Idler Tail .................................................... 9
Nose Bar Tip Up Tail........................................... 10
Lifter Installation ..................................................... 11
Wear Strip Installation............................................. 11
Straight Frame Sections ....................................... 11
Curved Frame Sections ........................................ 12
Belt Return Installation – Curved Frame Sections .. 13
Belt Installation........................................................ 13
Belt Return Installation – Straight Frame Sections . 15
Preventive Maintenance and Adjustment ....................... 16
Required Tools ............................................................ 16
Checklist...................................................................... 16
Cleaning....................................................................... 16
Routine Cleaning ..................................................... 16
Standard Conveyors ............................................. 16
Conveyors with Tip Up Tails and Lifters............. 17
Periodic Cleaning..................................................... 17
Lubrication .................................................................. 17
Conveyor Bearings................................................... 17
Wear Strips and Belt Returns....................................... 17
Maintaining the Conveyor Belt.................................... 17
Troubleshooting........................................................ 17
Conveyor Belt Replacement ....................................... 18
Conveyors with Guides ............................................ 18
Standard Belts........................................................... 18
Replacing a Section of Belt................................... 18
Replacing the Entire Belt...................................... 19
Specialty Intralox 2400 Series Belts......................... 19
Replacing a Section of Belt................................... 19
Replacing the Entire Belt...................................... 20
Conveyor Belt Tensioning ........................................... 20
Sprocket and Puck Removal ........................................ 21
A - Drive Sprocket Removal.................................... 21
B - Idler Puck Removal............................................ 22
Reassembling Tail Assembly....................................... 23
Tip Up Idler Tail....................................................... 23
Drive Tail.................................................................. 24
Bearing Replacement................................................... 26
NOTES ............................................................................ 27
Service Parts .................................................................... 28
Drive End Components................................................ 28
Tip Up Tension End..................................................... 30
Nose Bar Tip Up Tension End..................................... 31
Curve Conveyor Frame and Wear Strips ..................... 32
Straight Conveyor Frame and Wear Strips .................. 34
Conveyor Frame Connection ....................................... 35
76 mm High Sides........................................................ 36
Straight Belt Return...................................................... 37
Curve Belt Return ........................................................ 37
Curve Belt Chain Kit.................................................... 38
Belt Removal Tool....................................................... 38
Ordering a Replacement Chain.................................... 38
Configuring a Conveyor Part Number......................... 39
Curve Conveyor........................................................ 39
Return Policy................................................................... 40
Introduction
Upon receipt of shipment:
• Compare shipment with packing slip. Contact factory
regarding discrepancies.
• Inspect packages for shipping damage. Contact carrier
regarding damage.Accessories may be shipped loose.
• See accessory instructions for installation.
The Dorner Limited Warranty applies.
Dorner AquaPruf conveyors are covered by Patent
Numbers 7,207,435, 7,246,697, 7,383,944, additional
patent pending applications, and corresponding patents in
other countries.
Dorner reserves the right to make changes at any time
without notice or obligation.
Dorner has convenient, pre-configured kits of Key Service
Parts for all conveyor products. These time saving kits are
easy to order, designed for fast installation, and guarantee
you will have what you need when you need it. Key Parts
and Kits are marked in the Service Parts section of this
manual with the Performance Parts Kits logo .
Intralox is a registered trademark of Laitram L.L.C. in the
United States and / or other countries.
CAUTION
CAUTION
Some illustrations may show guards
removed. DO NOT operate equipment without
guards.
NOTE
Proper conveyor application, cleaning, and
sanitation are the responsibility of the end
user.

851-650 Rev. B 3 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Warnings – General Safety
DANGER
SEVERE HAZARD!
KEEP OFF CONVEYORS. Climbing, sitting,
walking or riding on conveyor will result in
death or serious injury.
DANGER
EXPLOSION HAZARD!
• DO NOT OPERATE CONVEYORS IN AN
EXPLOSIVE ENVIRONMENT. The electric
gearmotor generates heat and could ignite
combustible vapors.
• Failure to comply will result in death or
serious injury.
WARNING
CRUSH HAZARD!
• DO NOT place hands or fingers inside the
conveyor while it is running.
• DO NOT wear loose garments while
operating the conveyor. Loose garments
can become caught up in the conveyor.
• Failure to comply could result in serious
injury.
WARNING
CRUSH HAZARD!
• SUPPORT CONVEYOR SECTIONS PRIOR
TO LOOSENING STAND HEIGHT OR ANGLE
ADJUSTMENT SCREWS.
• Loosening stand height or angle
adjustment screws may cause conveyor
sections to drop down, causing serious
injury.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
WARNING
BURN HAZARD!
DO NOT TOUCH the motor while operating, or
shortly after being turned off. Motors may be
HOT and can cause serious burn injuries.
WARNING
PUNCTURE HAZARD!
Handle drive shaft keyway with care. It may
be sharp and could puncture the skin,
causing serious injury.
WARNING
SEVERE HAZARD!
• Dorner cannot control the physical
installation and application of conveyors.
Taking protective measures is the
responsibility of the user.
• When conveyors are used in conjunction
with other equipment or as part of a
multiple conveyor system, CHECK FOR
POTENTIAL PINCH POINTS and other
mechanical hazards before system start-up.
• Failure to comply could result in serious
injury.

851-650 Rev. B 4 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Product Description
Refer to (Figure 1) for typical conveyor components.
Figure 1
Specifications
Typical Components
1Conveyor
2 Gearmotor
3Belt
4 Return
5 Support Stands
6 Motor Controller
7DriveEnd
8 Tension End
2
1
4
3
8
7
6
5
Specifications
Conveyor Width Reference (WW)08 – 36 in 02 increments
Maximum Conveyor Load 97 kg / m2(20 lb / ft2) with a maximum of 4882 kg / m2(1000 lb / ft2)
Belt Travel 305 mm (12”) per revolution of pulley
Belt Take-up 51 mm (2”)
Conveyor Length Reference (LLL)020 – 999 in 001 increments
Conveyor Length 508 mm (20”) – 25.4 m (999”) in 25 mm (1”) increments
IMPORTANT
Maximum conveyor loads are based on:
• Non-accumulating product
• Product moving toward gearmotor
• Conveyor being mounted horizontally
• Conveyor being located in a dry environment
• Conveyor equipped with standard belt only

851-650 Rev. B 5 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Specifications
Conveyor Supports
Figure 2
7400 Series Frame Section Numbers
Straight Infeed Module / ldler Module
Straight Intermediate Module
Curve Module
Straight Exit / Drive Module
Maximum Distances:
1 (Infeed) = 914 mm (3ft)
2 (Outfeed) = 914 mm (3ft)
** Stand positions will be determined by the factory.
1 2
7U WW D C #BB
Module Serialized
Drive Shaft Position
AD
Sequence: 1 thru 9
Belt Material
Stand Location
S
Cleaning Options
Drive/ Pulley Type
Length
Belt Width
LLL
Guide Profile
G

Dorner Mfg. Corp. 6 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
Figure 3
Required Tools
• 17 mm wrench (for hexagonal head fasteners)
• 4 mm hex wrench (for bearing shaft assembly fasteners)
• Level
• Torque wrench
Recommended Installation
Sequence
1. Connect the frame sections together. “Frame Section
Connection” on page 6.
2. Attach the stands to the conveyor. Refer to “Stand
Installation” on page 7.
3. Attach the tail assemblies to the frame. Refer to “Tail
Assembly Installation” on page 8.
4. Attach the lifters, if applicable. Refer to “Lifter
Installation” on page 11.
5. Install the gearmotor, if applicable. Refer to the “7400
Series Drive Package Installation, Maintenance and
Parts Manual.”
6. Attach the wear strips. Refer to “Wear Strip
Installation” on page 11.
7. Attach the belt returns. Refer to “Belt Return
Installation – Straight Frame Sections” on page 15.
8. Install the belt. Refer to “Belt Installation” on page 13.
9. Attach any guides / accessories. Refer to the "Service
Parts" section starting on page 28.
Conveyor Installation
Frame Section Connection
Typical Connection Components (Figure 4)
Figure 4
CAUTION
CAUTION
Dorner recommends cleaning all the “food
zones” prior to placing conveyor into service.
Ensure adequate access is provided for
cleaning and servicing equipment so that the
required level of hygiene can be maintained.
NOTE
Proper conveyor application, cleaning, and
sanitation are the responsibility of the end
user.
CAUTION
CAUTION
Conveyor MUST be mounted straight, flat,
and level within confines of conveyor. Use a
level (Figure 3, item 1), during setup.
1
1 Conveyor frame section
2 Curved conveyor frame section
3 Hex post connector (x2)
4 Flat connector (x2)*
5 M10 - 1.5 x 12 mm hex head cap screw (x4)*
6 M10 - 1.5 x 16 mm hex head cap screw (x4)
7 O-rings (x8)
* For connections not supported by stands.
1
6
7
23
4
5

851-650 Rev. B 7 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
1. Locate the section number sequence etched on each
section of frame (Figure 5, item 1).
Figure 5
2. Position the frame sections in the correct order
(Figure 6).
Figure 6
3. Connect the frame sections by bolting the hex post
connectors (Figure 7, item 1) to the cross member
supports of each frame section.
Figure 7
4. Attach the flat connectors (Figure 8, item 1), if
applicable, to the inside of the frame sections.
Figure 8
Stand Installation
Typical Stand Components (Figure 9)
Figure 9
1
Infeed / Idler
Module (1)
Exit / Drive
Module (5)
Intermediate
Module (3)
Curve
Module (4)
Curve
Module (2)
1
1 Conveyor frame
2 Stand
3 M10 - 1.5 x 16 mm hex head cap screws (x4)
1
3
1
2

Dorner Mfg. Corp. 8 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
1. Position the stands on a flat, level surface.
2. Attach the stands to the frame (Figure 10).
Figure 10
Tail Assembly Installation
Drive Tail
Typical Drive Tail Components (Figure 11)
Figure 11
1. Slide the bearing shafts (Figure 12, item 1) into the
take up blocks (Figure 12, item 2).
Figure 12
2. Install the drive package, if applicable. Refer to the
“7400 Series Drive Package Installation, Maintenance
and Parts Manual.”
3. Insert the pull pins (Figure 13, item 1).
Figure 13
1 Drive tail assembly
2 Pull pin (x2)
3 Conveyor frame
1
2
3
1
2
1

851-650 Rev. B 9 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
Tip Up Idler Tail
Typical Tip Up Tail Components (Figure 14)
Figure 14
1. Slide the tip up shaft (Figure 15, item 1) through the
designated slots in the frame.
Figure 15
2. Attach the key stops (Figure 16, item 1) to the tip up
shaft (Figure 16, item 2). The rounded end of the key
stop should be facing the tail.
Figure 16
3. Slide the bearing shafts (Figure 17, item 1) into the
holes in the tip up shaft (Figure 17, item 2).
Figure 17
1 Tip up tail assembly
2 Pull pin (x2) & teather
3 Tip up shaft
4 Key stops (x2)
1
2
3
4
1
NOTE
Do not insert the pull pins on the tension end
of the conveyor until the belt has been
installed.
1
2
12

Dorner Mfg. Corp. 10 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
Nose Bar Tip Up Tail
Typical Nose Bar Tip Up Tail Components (Figure 18)
Figure 18
1. Slide the tip up shaft (Figure 19, item 1) through the
designated slots in the frame.
Figure 19
2. Attach the key stops (Figure 20, item 1) to the tip up
shaft (Figure 20, item 2). The rounded end of the key
stop should face the tail.
Figure 20
3. Attach nose bar idler shaft hands (Figure 21, item 1) to
the tip up shaft (Figure 21, item 2).
Figure 21
4. Attach the nose bar transfer post (Figure 22, item 1) to
the nose bar idler shaft hands (Figure 22, item 2).
Figure 22
1 Tip up tail assembly
2 Pull pin (x2) & teather
3 Tip up shaft
4 Key stops (x2)
1
4
2
3
1
1
2
1
2
2
1

851-650 Rev. B 11 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
5. Ensure that the nose bar pucks (Figure 23, item 1) are
in line with the conveyor frame (Figure 23, item 2).
Figure 23
Lifter Installation
Typical Lifter Components (Figure 24)
Figure 24
1. Slide the belt lift pivot bar (Figure 25, item 1) through
the designated holes in the frame.
Figure 25
2. Attach the lifter bars (Figure 25, item 2) to the belt lift
pivot bar (Figure 25, item 1). Make sure the hooked
ends of the lifter bars are facing down when resting
against the frame.
3. Attach the lifter handle (Figure 25, item 3) to the belt
lift pivot rod.
Wear Strip Installation
Straight Frame Sections
Typical Wear Strip Components (Figure 26)
Figure 26
NOTE
Do not insert the pull pins on the tension end
of the conveyor until the belt has been
installed.
1 Belt lift pivot bar
2 Lifter bars
3 Belt lift handle
4 M8 - 1.25 x 16 mm hex head cap screw
2
1
180˚
1
2
4
3
1Wearstrip
3
2
1
1
1

Dorner Mfg. Corp. 12 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
1. Position the wear strips (Figure 27, item 1) on the
frame.
Figure 27
2. Make sure the wear strips are situated securely in the
frame slots (Figure 27, item 2).
Curved Frame Sections
Typical Curved Wear Strip Components (Figure 28)
Figure 28
1. Insert the inside curve top wear strip
(Figure 29, item 1) into the innermost slot
(Figure 29, item 2) on the inside of the frame.
Figure 29
2. Attach the hold down wear strip (Figure 30, item 1) to
the frame hooks (Figure 30, item 2) on the outside of
the frame.
Figure 30
3. Insert the wear strips (Figure 31, item 1) into the
appropriate slots in the frame (Figure 31, item 2),
starting with the shortest wear strip on the inside of the
curved section and working outward to the longest.
Figure 31
1 Hold down wear strip
2 Wear strip
3 Inside curve top wear strip
1
2
1
2
3
1
2
3
1
2
1
2
1
2

851-650 Rev. B 13 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
Belt Return Installation – Curved Frame
Sections
Typical Curved Belt Return Components (Figure 32)
Figure 32
1. Insert the inside return bottom wear strip
(Figure 33, item 1) into the slots (Figure 33, item 2)
on the lower inside section of the frame (figure shown
without the belt or wear strips).
Figure 33
2. Attach the chain return shoes (Figure 33, item 1) to
the curve return shafts (Figure 33, item 2).
3. Slide the long end of the curve return shaft
(Figure 34, item 1) through the center hole in the
return bottom wear strip (Figure 34, item 2).
Figure 34
4. Slide the return shaft up and through the large slot in
the frame. Make sure the holes in the return bottom
wear strip match up with the holes in the conveyor
frame.
5. Push up on the return shaft and slide the notched end
of the shaft through the small slot on the opposite side
of the frame (Figure 34, item 3).
6. Repeat steps 4 – 5 with the remaining returns.
Belt Installation
Typical Belt Components (Figure 35)
Figure 35
1 Return bottom wear strip
2 Curve return shaft
3 Chain return shoe
4 Inside return bottom wear strip
4
3
2
1
1
2
4
3
1
2
1 Chain belt
2 Belt rod
1
3
2
1
2
1
2

Dorner Mfg. Corp. 14 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
1. Position the belt on the conveyor frame (Figure 36).
Figure 36
2. Wrap the belt around the conveyor, making sure the
sprocket teeth have engaged the belt.
3. Bring the ends of the belt together (Figure 37).
Figure 37
4. Insert the belt rod (Figure 38, item 1).
Figure 38
5. Push the belt rod in as far as possible.
6. Lightly tap the head of the rod with a hammer until it
snaps into position.
7. Extend the tension end to remove excess slack in the
belt (Figure 39).
Figure 39
8. Insert the pull pins (Figure 40, item 1) on the tension
end of the conveyor.
Figure 40
9. If no more travel is available, remove one or more belt
links to take up the tension. Refer to “Standard Belts:
Replacing a Section of Belt” on page 18.
1
1

851-650 Rev. B 15 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Installation
Belt Return Installation – Straight Frame
Sections
Typical Belt Return Components (Figure 41)
Figure 41
1. Attach the chain return shoes (Figure 42, item 1) to
the return shaft (Figure 42, item 2).
Figure 42
2. Slide the return shaft up (Figure 43, item 1) and
through the large slot (Figure 43, item 2) in the frame
(picture shown without the belt or wear strips).
Figure 43
3. Push up on the return shaft (Figure 43, item 1) and
slide the notched end of the shaft through the small slot
on the opposite side of the frame.
4. Check belt sag by measuring from the top of the return
(Figure 44). Belt sag should not exceed 102 mm.
Follow steps 7 – 9 in the “Belt Installation” section on
page 13 to remove slack from the belt.
Figure 44
1 Return shaft
2 Chain return shoe
1
2
1
2
1
2
CAUTION
CAUTION
Belt sag should not exceed 102 mm from the
top of the returns.
1
2
Up to 102 mm

Dorner Mfg. Corp. 16 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Preventive Maintenance and Adjustment
Preventive Maintenan ce and Adjustment
Required Tools
• 17 mm wrench (or adjustable wrench)
• 4 mm hex wrench (for bearing shaft assembly fasteners)
• 3 mm hex wrench
• Punch and hammer (to remove belt rod)
Checklist
• Keep service parts on hand. Refer to the "Service Parts"
section starting on page 28 for recommendations.
• Replace any worn or damaged parts.
Cleaning
Routine Cleaning
Dorner recommends cleaning the inside and the outside of
the conveyor on a daily basis. Refer to the following steps to
access the inside of the conveyor.
Standard Conveyors
1. Remove the guides, if applicable, by removing the pull
pins (Figure 45, item 1) that connect the guide
(Figure 45, item 2) to the frame.
Figure 45
2. Remove the pull pin (Figure 46, item 1) on the tension
end of the conveyor to release belt tension.
Figure 46
3. Lift up on the belt (Figure 47).
Figure 47
NOTE
Proper conveyor application, cleaning, and
sanitation are the responsibility of the end
user.
CAUTION
CAUTION
Dorner recommends cleaning all the “food
zones” prior to placing conveyor into service.
Ensure adequate access is provided for
cleaning and servicing equipment so that the
required level of hygiene can be maintained.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
2
1

851-650 Rev. B 17 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Preventive Maintenance and Adjustment
Conveyors with Tip Up Tails and Lifters
1. Remove the guides, if applicable, by removing the pull
pins (Figure 45, item 1) that connect the guide
(Figure 45, item 2) to the frame.
2. Use the lifter handle (Figure 48, item 1) to raise the
lifters (Figure 48, item 2) and raise the tip up tail
(Figure 48, item 3).
Figure 48
Periodic Cleaning
Dorner recommends complete disassembly of the conveyor
periodically for thorough cleaning.
For conveyor disassembly and reassembly instructions:
• Refer to “Conveyor Belt Replacement” on page 18.
• Refer to “Sprocket and Puck Removal” on page 21.
• Refer to “Reassembling Tail Assembly” on page 23.
Lubrication
Conveyor Bearings
Conveyor bearing lubrication is required. Dorner
recommends using an H-1 food grade grease.
1. Add grease to the bearing using the zerk fitting
(Figure 49, item 1) on the exterior of the bearing shaft
assembly.
Figure 49
2. Replace the bearings if they become worn.
Wear Strips and Belt Returns
Replace the wear strips and belt returns if they become
worn.
For wearstrip and belt return installation instructions:
• Refer to “Wear Strip Installation” on page 11.
• Refer to “Belt Return Installation – Straight Frame Sec-
tions” on page 15.
Maintaining the Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
• Skipping
Damage to belt links or rods, surface cuts and / or
wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Accumulated dirt
• Foreign material inside the conveyor
• Improperly positioned accessories
Skipping indicates:
• Excessive load on belt
• Worn sprockets or impacted dirt on drive pulley
Damage to belt links or rods indicate:
CAUTION
CAUTION
DO NOT submerge or soak bearing
assemblies. This will reduce the life of the
bearing.
NOTE
Although bearings are sealed, re-greasing is
recommended to increase bearing life. An
H-1 food grade grease is recommended. The
frequency of bearing re-greasing is
dependent upon the application in which the
conveyor is being used. Frequency of re-
greasing will increase with the frequency of
conveyor washing.
3
2
1
NOTE
Visit www.dorner.com for complete list of
troubleshooting solutions.
1

Dorner Mfg. Corp. 18 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Preventive Maintenance and Adjustment
Skipping indicates:
• Excessive load on belt
• Dirt impacted on sprockets
• Excessive or improper side loading
• Improperly positioned accessories
Conveyor Belt Replacement
Conveyors with Guides
1. Remove the pull pins (Figure 50, item 1) that connect
the guide (Figure 50, item 2) to the frame.
Figure 50
2. Remove the guide (Figure 51, item 1).
Figure 51
3. Follow the belt replacement procedures described in
“Standard Belts” on page 18, or “Specialty Intralox
2400 Series Belts” on page 19.
Standard Belts
Replacing a Section of Belt
1. Remove the pull pins (Figure 52, item 1) on the
tension end of the conveyor to release tension on the
belt.
Figure 52
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
2
1
1

851-650 Rev. B 19 Dorner Mfg. Corp.
7400 Ultimate Series CE Curved End Drive Conveyors
Preventive Maintenance and Adjustment
2. Secure the retaining head side of the belt. Use the belt
removal tool (Figure 54, item 1) for 1" pitch belts. For
all other belts, position the section of belt so that it is
braced by the flanged puck (Figure 53, item 2).
Figure 53
3. Use a punch and hammer to push the belt rod out by
striking the rod end opposite the retaining head
(Figure 54).
Figure 54
4. Remove the belt rods on both sides of the section of
belt being replaced.
5. Replace the old section with a new section of belt.
Replacing the Entire Belt
1. Remove the belt returns by pushing up on the return
shaft (Figure 55, item 1) and sliding it through the
large hole (Figure 55, item 2) in the frame.
Figure 55
2. Lower the opposite end of the return shaft
(Figure 55, item 1) and slide it out of the frame.
3. Follow steps 1 – 3 in "Standard Belts: Replacing a
Section of Belt" on page 18.
4. Remove the belt.
5. Replace the damaged or worn belt. Refer to “Belt
Installation” on page 13 and “Belt Return Installation”
on page 15.
Specialty Intralox 2400 Series Belts
Replacing a Section of Belt
1. Remove the pull pins (Figure 58, item 1) on the
tension end of the conveyor to release tension on the
belt.
Figure 56
CAUTION
CAUTION
Secure the retaining head side of the belt
prior to removing a belt rod in order to
prevent damaging the belt.
CAUTION
CAUTION
DO NOT reuse belt rods that are damaged or
show signs of wear.
21
1
2
1

Dorner Mfg. Corp. 20 851-650 Rev. B
7400 Ultimate Series CE Curved End Drive Conveyors
Preventive Maintenance and Adjustment
2. Use a punch and hammer to push the belt rod out by
striking the rod end opposite the retaining head
(Figure 57, item 1).
Figure 57
3. Remove the belt rods on both sides of the section of belt
being replaced.
4. Replace the old section with a new section of belt.
Replacing the Entire Belt
1. Remove the belt returns by pushing up on the return
shaft (Figure 58, item 1) and sliding it through the
large hole (Figure 58, item 2) in the frame.
Figure 58
2. Lower the opposite end of the return shaft
(Figure 58, item 1) and slide it out of the frame.
3. Follow steps 1 – 3 in "Specialty Intralox 2400 Series
Belts: Replacing a Section of Belt" on page 19.
4. Remove the belt.
5. Replace the damaged or worn belt. Refer to “Belt
Installation” on page 13, and “Belt Return Installation –
Straight Frame Sections” on page 15.
Conveyor Belt Tensioning
1. Remove both pull pins (Figure 59, item 1) on the
tension end of the conveyor.
Figure 59
6. Extend the idler tail to the next groove
(Figure 59, item 2) on the bearing shaft.
CAUTION
CAUTION
Secure the retaining head side of the belt
prior to removing a belt rod in order to
prevent damaging the belt.
CAUTION
CAUTION
DO NOT reuse belt rods that are damaged or
show signs of wear.
1
1
2
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
CAUTION
CAUTION
Belt sag should not exceed 102 mm from the
top of the returns.
1
2