Dorner AquaPruf 7400 Ultimate CE Series User manual

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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]
Installation, Maintenance and Parts Manual
851-669 Rev. B
7400 Ultimate Series
End Drive Conveyors
Flat Belt Conveyor

Dorner Mfg. Corp. 2 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Table of Contents
Introduction ......................................................................... 2
Warnings – General Safety.................................................. 3
Product Description ............................................................. 4
Specifications ...................................................................... 5
Flat Belt 7400 Series Conveyor ................................... 5
Cleated Belt 7400 Series Conveyor ............................. 5
Flat Belt 7400 Series LPZ Conveyor ........................... 5
Cleated Belt 7400 Series LPZ Conveyor ..................... 5
Conveyor Supports....................................................... 6
Installation ........................................................................... 7
Required Tools................................................................. 7
Recommended Installation Sequence .............................. 7
Conveyors Longer than 10 ft (3048 mm) ........................ 7
LPZ Conveyors ................................................................ 8
Knuckles....................................................................... 8
Belt ............................................................................... 8
Guides........................................................................... 9
All Conveyors .................................................................. 9
Stand Installation.......................................................... 9
Tail Assembly Installation ......................................... 10
Lifter Installation........................................................ 13
Wear Strip Installation ............................................... 13
Belt Installation .......................................................... 14
Belt Return Installation .............................................. 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
Wearstrips 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 1100 Series Belts .......................... 19
Replacing a Section of Belt .................................... 19
Replacing the Entire Belt ........................................ 20
Specialty Intralox 1600 Series Belts ........................... 20
Replacing a Section of Belt ..................................... 20
Replacing the Entire Belt ........................................ 20
Conveyor Belt Tensioning.............................................. 21
Sprocket and Puck Removal........................................... 21
A - Drive Sprocket Removal ...................................... 21
B - Idler Puck Removal .............................................. 22
C - Nose Bar Puck Removal ....................................... 23
Reassembling Tail Assembly ......................................... 24
Idler Tail ..................................................................... 24
Drive Tail .................................................................... 24
Nose Bar Idler ............................................................. 24
Bearing Replacement ..................................................... 25
LPZ Knuckles ................................................................. 25
Wearstrips and Belt Returns ....................................... 25
Service Parts....................................................................... 26
Drive End Components .................................................. 26
Tip Up Idler End............................................................. 28
Nose Bar Tip Up Idler End............................................. 29
Upper Knuckle for 5° - 15° ............................................ 30
Upper Knuckle for 30° - 60° .......................................... 31
Lower Knuckle for 5° - 15° ............................................ 32
Lower Knuckle for 30° - 60°.......................................... 33
Conveyor Frame and Extension ..................................... 34
Lifters ............................................................................. 35
3" (76 mm) High Sides................................................... 36
Adjustable Guiding......................................................... 37
Tool-Less Adjustable Guiding ....................................... 38
Cleated 1" (25 mm) Guides ............................................ 39
Cleated 3" (76 mm) Guides ............................................ 40
Returns for Flat Belt Conveyors
26” (660 mm) Wide and Wider ..................................... 41
Returns for Flat Belt Conveyors up to
24” (610 mm) Wide and Cleated Belt Conveyors......... 41
Flat Belt .......................................................................... 42
Cleated Belt .................................................................... 42
Ordering a Replacement Chain ...................................... 42
Belt Removal Tool ......................................................... 42
Service Parts....................................................................... 43
Configuring Conveyor Part Number .............................. 43
Flat Belt Conveyor...................................................... 43
Cleated Belt Conveyor................................................ 43
Return Policy...................................................................... 44
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 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 .
Dorner 7400 series conveyors are covered by Patent
Numbers 7,246,697, 7,207,435, 7,549,531 B2, 7,681,719
B2, 7,383,944, 8,042,682 B2 and corresponding patents and
patent applications in other countries.
Dorner reserves the right to make changes at any time
without notice or obligation.
Intralox is a registered trademark of Laitram L.L.C. in the
United States and / or other countries.
Introduction
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.

851-669 Rev. B 3 Dorner Mfg. Corp.
7400 Ultimate Series 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.

Dorner Mfg. Corp. 4 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Product Description
Refer to (Figure 1) for typical conveyor components.
Figure 1
Typical Components
1Conveyor
2 Belt (Flat Belt Shown)
3 Return
4 Support Stands
5DriveEnd
6 Tension End
1
2
3
5
4
6

851-669 Rev. B 5 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Specifications
Specifications
Flat Belt 7400 Series Conveyor
Cleated Belt 7400 Series Conveyor
Flat Belt 7400 Series LPZ Conveyor
Cleated Belt 7400 Series LPZ Conveyor
Document Language
Document Language

Dorner Mfg. Corp. 6 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Specifications
Conveyor Supports
Figure 2
Specifications
Maximum Distances:
1 = 3 ft (914 mm)
2 = 8 ft (2438 mm)**
3 = 3 ft (914 mm)
** For conveyors longer than 10 ft (3.05 m),
install support at frame joint.
1 2 3
Conveyor Width Reference (WW)06 – 36 in 02 increments
Conveyor Belt Width 6" (152 mm) – 36" (914 mm) in 2" (51 mm) increments
Maximum Conveyor Load 20 lb / ft2(97 kg / m2) with a maximum of 1000 lb / ft2(4882 kg / m2)
Belt Travel 12" (305 mm) per revolution of pulley
Maximum Belt Speed 233 ft / minute (71 m / minute)
Belt Take-up 2" (51 mm)
Conveyor Length Reference (LLL)036 – 999 in 001 increments
Conveyor Length 36" (914 mm) – 999" (25.4 m) in 1" (25 mm) increments
LPZ Section Lengths (LLL)024 – 252 in 001 increments
LPZ Section Length 24" (610 mm) – 252" (6401 mm) in 1" (25 mm) increments
Total LPZ Conveyor Length (L1 +L2 + L3) = Maximum 38' (11.6 m) long conveyor
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

851-669 Rev. B 7 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Installation
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. Attach the stands to the conveyor. Refer to “Stand
Installation” on page 9.
2. Attach the tail assemblies to the frame. Refer to “Tail
Assembly Installation” on page 10.
3. Attach the lifters, if applicable. Refer to “Lifter
Installation” on page 13.
4. Install the gearmotor, if applicable. Refer to the “7400
Series Drive Package Installation, Maintenance and
Parts Manual.”
5. Attach the wear strips. Refer to “Wear Strip Installation”
on page 13.
6. Install the belt. Refer to “Belt Installation” on page 14.
7. Attach the belt returns. Refer to “Belt Return
Installation” on page 15.
8. Attach any guides / accessories. Refer to the "Service
Parts" section starting on page 26.
Conveyors Longer than 10 ft
(3048 mm)
Typical Connection Components (Figure 4).
Figure 4
1. Locate and arrange conveyor sections by section labels
(Figure 5, item 1).
Figure 5
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 M10 x 1.5 mm hex head cap screws (x4)
2 Connector hex rods (x2)
3 Conveyor frame
4 O-rings (x8)
1
2
4
3
1
1

Dorner Mfg. Corp. 8 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Installation
2. Position the frame sections in the correct order.
3. Connect the frame sections by bolting the hex post
connectors (Figure 6, item 1) between frame sections.
Be sure O-rings are seated properly on hex post and hex
screws prior to tightening of screws to avoid damage to
O-rings.
Figure 6
LPZ Conveyors
Knuckles
1. Attach upper knuckle (Figure 7, item 1) to frame
(Figure 7, item 2) with hex rods (Figure 7, item 3) and
bolts (Figure 7, item 4).
Figure 7
2. Install wear strips (Figure 7, item 5).
3. Attach lower knuckle (Figure 8, item 1) to frame
(Figure 8, item 2) with hex rods (Figure 8, item 3) and
bolts (Figure 8, item 4).
Figure 8
4. Install wear strips (Figure 8, item 5).
Belt
1. Slide belt (Figure 9, item 1) over knuckles on top of the
wear strips.
Figure 9
CAUTION
CAUTION
Avoid damage to O-rings. Be careful not to
pinch or cut them.
1
1
2
2
3
4
5
6
1
2
23
4
5
1

851-669 Rev. B 9 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Installation
Guides
1. Slide guides (Figure 10, item 1) on to the knuckle
frame, and secure with pull pins (Figure 10, item 2).
Figure 10
2. Install return guides and secure with pull pin
(Figure 10, item 3).
3. Slide guides (Figure 11, item 1) onto lower knuckle
frame, and secure with pull pins (Figure 11, item 2).
Figure 11
All Conveyors
Stand Installation
Typical Stand Components (Figure 12).
Figure 12
1. Position the stands on a flat, level surface.
2. Attach the stands to the frame (Figure 13).
Figure 13
3. Tighten hex screws (Figure 13, item 1).
1
2
3
1
2
1 Conveyor frame
2 Stand
3 M10 - 1.5 x 16 mm hex head cap screws (x4)
1
2
3
1
2
3
1

Dorner Mfg. Corp. 10 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Installation
Tail Assembly Installation
Drive Tail
Typical Drive Tail Components (Figure 14)
Figure 14
1. Slide the bearing shafts (Figure 15, item 1) into the take
up blocks (Figure 15, item 2).
Figure 15
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 16, item 1).
Figure 16
Tip Up Assembly
Typical Tip Up Assembly Components (Figure 17)
Figure 17
1 Drive tail assembly
2 Pull pin (x2)
3 Conveyor frame
2
1
3
1
2
1HexBar
2 Stop Key (x2)
3 Tip Up Sleeve (x2)
1
3
2
1
2
3

851-669 Rev. B 11 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Installation
1. Slide stop keys (Figure 18, item 1) and tip up sleeves
(Figure 18, item 2) onto hex shaft (Figure 18, item 3).
The tabs on the tip up sleeves face outward and align
with the slotted ends of the hex shaft as shown.
Figure 18
2. Place hex shaft assembly (Figure 19, item 1) through
the conveyor frame tip up holes (Figure 19, item 2) and
center with conveyor.
Figure 19
3. Hex shaft assembly will need to be rotated (Figure 20)
for stop keys (Figure 20, item 1) to pass by the frame
stops (Figure 20, item 2).
Figure 20
4. Slide the tip up sleeves (Figure 21, item 1) and stop
keys (Figure 21, item 1) outward on hex shaft assembly
(Figure 21, item 3) until the sleeves seat in the holes of
the frame and stop keys are seated against frame stops
(Figure 21, item 4).
Figure 21
Idler Tail
Typical Idler Tail Components (Figure 22).
Figure 22
2
2
1
3
1
2
2
1 Tip up tail assembly
2 Pull pin (x2)
3 Conveyor frame
1
2
3
2
4
2
1
1
3
2
1

Dorner Mfg. Corp. 12 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Installation
1. Place the idler tail assembly (Figure 23, item 1) against
the holes in the tip up hex shaft assembly
(Figure 23, item 2) and secure with a pull pin
(Figure 23, item 3) on each side.
Figure 23
Nose Bar Idler Tail
Typical Nose Bar Tip Up Tail Components (Figure 24).
Figure 24
2. Attach nose bar idler shaft hands (Figure 25, item 1) to
the tip up shaft (Figure 25, item 2) with a pull pin
(Figure 25, item 3).
Figure 25
3. Attach the nose bar transfer post (Figure 26, item 1) to
the nose bar idler shaft hands (Figure 26, item 2).
Figure 26
4. Ensure that the nose bar pucks (Figure 27, item 1) are
in line with the conveyor frame (Figure 27, item 2).
Figure 27
CAUTION
CAUTION
To avoid injury and damage to parts, have an
assistant hold opposite end of idler tail when
removing or installing it.
1 Tip up tail assembly
2 Pull pin (x2)
3 Conveyor frame
3
3
2
1
1
32
1
2
3
2
1
2
1
180˚

851-669 Rev. B 13 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Installation
Lifter Installation
Typical Lifter Components (Figure 28).
Figure 28
1. Slide the belt lift pivot bar (Figure 29, item 1) through
the designated holes in the frame. The pins on the pivot
bar should be located to the inside of the frame side
rails.
Figure 29
2. Attach the lifter bars (Figure 29, item 2) to the belt lift
pivot bar (Figure 29, 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 29, item 3) to the belt
lift pivot rod.
Wear Strip Installation
Typical Wear Strip Components (Figure 30).
Figure 30
1. Position the wear strips (Figure 31, item 1) on the
frame.
Figure 31
2. Make sure the wear strips are situated securely in the
frame slots (Figure 31, item 2).
1 Belt lift pivot bar
2 Lifter bars
3 Belt lift handle
4 M8 - 1.25 x 16 mm hex head cap screw
1
4
3
2
3
2
1
1 Wear strip
1
1
1
2

Dorner Mfg. Corp. 14 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Installation
Belt Installation
Typical Belt Components (Figure 32).
Figure 32
1. Position the belt on the conveyor frame (Figure 33).
Figure 33
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 34).
Figure 34
4. Insert the belt rod (Figure 35, item 1).
Figure 35
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. Check belt sag by measuring from the top of the return
(Figure 36).
Figure 36
1 Chain belt
2 Belt rod
1
2
2
1
CAUTION
CAUTION
Belt sag should not exceed 4" (102 mm) from
the top of the returns.
1
(102 mm)
Up to 4"

851-669 Rev. B 15 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Installation
Belt Return Installation
Typical Belt Return Components (Figure 37).
Figure 37
1. Attach the chain return shoes (Figure 38, item 1) to the
return shaft (Figure 38, item 2).
Figure 38
2. Slide the return shaft (Figure 39, item 1) up and
through the large slot (Figure 39, item 2) in the frame
(picture shown without the belt or wear strips).
Figure 39
3. Push up on the return shaft (Figure 39, 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 40). Belt sag should not exceed 4" (102 mm).
Follow steps 7 – 9 in the “Belt Installation” section on
page 14 to remove slack from the belt.
Figure 40
1 Return shaft
2 Chain return shoe
1
2
1
2
1
2
CAUTION
CAUTION
Belt sag should not exceed 4" (102 mm) from
the top of the returns.
1
2
(102 mm)
Up to 4"

Dorner Mfg. Corp. 16 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Preventive Maintenance and Adjustment
Preventive Maintenance and
Adjustment
Required Tools
• 17 mm wrench (or adjustable wrench)
•1/8"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 26 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 41, item 1) that connect the guide
(Figure 41, item 2) to the frame.
Figure 41
2. Tip up idler tail assembly (Figure 42).
Figure 42
3. Lift up on the belt (Figure 43).
Figure 43
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

851-669 Rev. B 17 Dorner Mfg. Corp.
7400 Ultimate Series 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 41, item 1) that connect the guide
(Figure 41, item 2) to the frame.
2. Use the lifter handle (Figure 44, item 1) to raise the
lifters (Figure 44, item 2) and raise the tip up tail
(Figure 44, item 3).
Figure 44
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 24.
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 45, item 1) on the exterior of the bearing shaft
assembly.
Figure 45
2. Replace the bearings if they become worn.
Wearstrips and Belt Returns
Replace the wearstrips and belt returns if they become worn.
For wearstrip and belt return installation instructions:
• Refer to “Wear Strip Installation” on page 13.
• Refer to “Belt Return Installation” 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:
• Excessive load on belt
• Dirt impacted on sprockets
• Excessive or improper side loading
• Improperly positioned accessories
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
1

Dorner Mfg. Corp. 18 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Replacement
Conveyors with Guides
1. Remove the pull pins (Figure 46, item 1) that connect
the guide (Figure 46, item 2) to the frame.
Figure 46
2. Remove the guide (Figure 47, item 1).
Figure 47
3. Follow the belt replacement procedures described in
“Standard Belts” on page 18, “Specialty Intralox 1100
Series Belts” on page 19, or “Specialty Intralox 1600
Series Belts” on page 20.
Standard Belts
Replacing a Section of Belt
1. Tip up idler tail assembly (Figure 48).
Figure 48
2. Secure the retaining head side of the belt. Use the belt
removal tool (Figure 49, 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 49, item 2).
Figure 49
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
2
1
CAUTION
CAUTION
Secure the retaining head side of the belt
prior to removing a belt rod in order to
prevent damaging the belt.
21

851-669 Rev. B 19 Dorner Mfg. Corp.
7400 Ultimate Series End Drive Conveyors
Preventive Maintenance and Adjustment
3. Use a punch and hammer to push the belt rod out by
striking the rod end opposite the retaining head
(Figure 50).
Figure 50
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 51, item 1) and sliding it through the large
hole (Figure 51, item 2) in the frame.
Figure 51
2. Lower the opposite end of the return shaft
(Figure 51, 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 14 and “Belt Return Installation”
on page 15.
Specialty Intralox 1100 Series Belts
Replacing a Section of Belt
1. Place the edge of a flat head screwdriver between the
the two belt links and turn clockwise (Figure 52).
Figure 52
2. Use a second belt rod of the same size to push on the
opposite end of the belt rod. (Figure 53).
Figure 53
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.
CAUTION
CAUTION
DO NOT reuse belt rods that are damaged or
show signs of wear.
1
2
CAUTION
CAUTION
DO NOT reuse belt rods that are damaged or
show signs of wear.

Dorner Mfg. Corp. 20 851-669 Rev. B
7400 Ultimate Series End Drive Conveyors
Preventive Maintenance and Adjustment
Replacing the Entire Belt
1. Remove the belt returns by pushing up on the return
shaft (Figure 54, item 1) and sliding it through the large
hole (Figure 54, item 2) in the frame.
Figure 54
2. Lower the opposite end of the return shaft
(Figure 54, item 1) and slide it out of the frame.
3. Follow steps 1 – 2 in "Specialty Intralox 1100 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 14 and “Belt Return Installation”
page 15.
Specialty Intralox 1600 Series Belts
Replacing a Section of Belt
1. Lift up on the belt to gain access to the underside
2. Use a flat head screwdriver to raise the end of the belt
rod above the retention lip (Figure 55).
Figure 55
3. Remove the bet rod by gripping the end with a set of
pliers and pulling (Figure 56).
Figure 56
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 57, item 1) and sliding it through the large
hole (Figure 57, item 2) in the frame.
Figure 57
2. Lower the opposite end of the return shaft
(Figure 57, item 1) and slide it out of the frame.
3. Follow steps 1 – 2 in "Specialty Intralox 1600 Series
Belts: Replacing a Section of Belt" on page page 20.
4. Remove the belt.
5. Replace the damaged or worn belt. Refer to “Belt
Installation” on page 14 and “Belt Return Installation”
page 15.
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CAUTION
CAUTION
DO NOT reuse belt rods that are damaged or
show signs of wear.
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