Dorner AquaPruf 7600 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]
851-643 Rev. D
7600 Series CE End Drive
Conveyors
Installation, Maintenance and Parts Manual
Flat Belt Conveyor Cleated Belt Conveyor

Dorner Mfg. Corp. 2 851-643 Rev. D
7600 Series CE End Drive Conveyors
Table of Contents
Introduction ....................................................................... 2
Warnings – General Safety................................................ 3
Product Description........................................................... 4
Specifications .................................................................... 5
Flat Belt 7600 Series Conveyor..................................... 5
Cleated Belt 7600 Series Conveyor............................... 5
Flat Belt 7600 Series LPZ Conveyor............................. 5
Cleated Belt 7600 Series LPZ Conveyor....................... 5
Conveyor Supports ........................................................ 6
Specifications................................................................. 6
Installation......................................................................... 7
Required Tools............................................................... 7
Recommended Installation Sequence............................ 7
Conveyors Longer than 3048 mm ................................. 7
Connecting Components ............................................ 7
Wear Strip Installation ............................................... 8
Standard Wear Strips.............................................. 8
Stainless Steel Sheet Bed Plates (Optional)............ 8
Lifter Installation........................................................ 9
Belt Installation .......................................................... 9
Guide Installation..................................................... 10
LPZ Conveyors............................................................ 11
Knuckles................................................................... 11
Belt........................................................................... 11
Guides....................................................................... 12
All Conveyors.............................................................. 12
Belt Return Installation ............................................ 12
Flat Belt ................................................................ 12
Cleated Belt .......................................................... 12
Scraper Installation................................................... 13
Stand Installation...................................................... 14
Drive Package Installation ....................................... 15
Preventive Maintenance and Adjustment........................ 16
Required Tools............................................................. 16
Checklist ..................................................................... 16
Cleaning....................................................................... 16
Routine Cleaning...................................................... 16
Standard Conveyors.............................................. 16
Conveyors with Lifters......................................... 16
Periodic Cleaning..................................................... 17
Lubrication................................................................... 17
Conveyor Bearings .................................................. 17
Wearstrips and Belt Returns ........................................ 17
Scraper ......................................................................... 17
Maintaining the Conveyor Belt.................................... 17
Troubleshooting ....................................................... 17
Conveyor Belt Replacement ....................................... 17
Conveyors with Guides ............................................ 18
Standard Belts........................................................... 18
Conveyor Belt Tensioning........................................... 19
Conveyor Belt Tracking............................................... 19
Spindle Removal.......................................................... 20
A - Drive Spindle Removal ..................................... 20
B - Idler Spindle Removal ....................................... 22
C - .5" Nose Bar Idler Spindle Removal ................. 23
D - 1” Nose Bar Idler Spindle Removal .................. 24
E - 1.875" Nose Bar Idler Spindle Removal ........... 25
Reassembling Tail Assemblies .................................... 26
Gas Assist Replacement............................................... 26
Bearing Replacement .................................................. 26
Standard Bearings..................................................... 26
.5" and 1" Nose Bar Return Spindle Bearings.......... 27
1" Nose Bar Bearings............................................... 27
1.875" Nose Bar Bearings........................................ 28
LPZ Knuckles........................................................... 28
Wearstrips and Belt Returns ................................. 28
Removal................................................................ 28
Installation ............................................................ 28
NOTES ............................................................................ 29
Service Parts.................................................................... 30
Drive End Components................................................ 30
Idler End Components ................................................. 31
.5" Nose Bar Idler End................................................. 32
1" Nose Bar Idler End.................................................. 34
1.875" Nose Bar Idler End........................................... 36
Upper Knuckle for Flat Belt Conveyors...................... 37
Upper Knuckle for Cleated Belt Conveyors................ 38
Lower Knuckle for Cleated Belt Conveyors................ 39
Conveyor Frame and
Extensions with Standard Wear Strips......................... 40
Wear Strips with Stainless Steel Sheet Bed Plate........ 41
Lifters........................................................................... 42
Gas Assisted Tip Up .................................................... 42
3" High Sides ............................................................... 43
1" Cleated Guides ........................................................ 44
3" Cleated Guides ........................................................ 45
Flat Belt Returns .......................................................... 46
Cleated Belt Return...................................................... 46
Scraper ......................................................................... 46
Configuring Conveyor Belt Part Number.................... 47
Return Policy................................................................... 48
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 .
CAUTION
Some illustrations may show guards
removed. DO NOT operate equipment without
guards.

851-643 Rev. D 3 Dorner Mfg. Corp.
7600 Series CE 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. 4 851-643 Rev. D
7600 Series CE End Drive Conveyors
Product Description
Refer to (Figure 1) for typical conveyor components.
Figure 1
Figure 1
Typical Components
1Conveyor
2 Gearmotor
3 Belt (Flat Belt Shown)
4 Return
5 Support Stands
6 Motor Controller
7DriveEnd
8IdlerEnd
6
1
3
27
4
8
5

851-643 Rev. D 5 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Specifications
Flat Belt 7600 Series Conveyor
Cleated Belt 7600 Series Conveyor
Flat Belt 7600 Series LPZ Conveyor
Cleated Belt 7600 Series LPZ
Conveyor
7 6 U WW LLL S S C D G BB
Bed Type / V-Guide
Document Language
Conveyor Width
Conveyor Length
Drive Stand Location
Idler Stand Location
Cleaning Options
Tail Types / Position
Profile
Belt Type
7 A U WW LLL S S C SSSS
Cleat Spacing
Cleat Type
Document Language
Conveyor Width
Conveyor Length
Drive Stand Location
Idler Stand Location
Cleaning Options / V-Guide

Dorner Mfg. Corp. 6 851-643 Rev. D
7600 Series CE End Drive Conveyors
Specifications
Conveyor Supports Figure 2
Figure 2
Specifications
Maximum Distances:
1 = Support Stand on Idler End = 914 mm
2 = Between Support Stands = 2438 mm**
3 = Support Stand on Drive End = 914 mm
** For conveyors longer than 3.05 m,
install support at frame joint.
1 2 3
Conveyor Width Reference (WW) 06 – 60 in 02 increments
Conveyor Belt Width 6" (152 mm) - 60" (1524 mm) in 2" (51 mm) increments
Maximum Conveyor Load 181 kg (400 lbs.)
Belt Travel 286 mm (11.25") per revolution of pulley
Maximum Belt Speed 100 m/minute (325 ft/minute)
Belt Take-up 38 mm (1.5")
Conveyor Length Reference (LLL) 036 – 480 in 001 increments
Conveyor Length 36" (914 mm) - 480" (12192 mm) 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 11.6 m (38') 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

851-643 Rev. D 7 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Installation
Figure 3
Figure 3
Required Tools
• Level
• Torque wrench
Recommended Installation
Sequence
1. Assemble the conveyor (if required). Refer to “All
Conveyors” on page 12.
2. Attach the stands. Refer to “Stand Installation” on
page 14.
3. Install the gearmotor. Refer to “Drive Package
Installation” on page 15.
Conveyors Longer than 3048 mm
Connecting Components
Typical Connection Components (Figure 4)
Figure 4
Figure 4
1. Locate the section number sequence etched on each
section of frame (Figure 5, item 1).
Figure 5
Figure 5
2. Position the frame sections in the correct order.
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.
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 frames
3
1
2
1
2
3
1

Dorner Mfg. Corp. 8 851-643 Rev. D
7600 Series CE End Drive Conveyors
Installation
3. Connect the frame sections by bolting the hex post
connectors (Figure 6, item 1) to the sections of frame.
Figure 6
Figure 6
Wear Strip Installation
Standard Wear Strips
Typical Standard Wear Strips (Figure 7)
Figure 7
Figure 7
1. Position the wear strips (Figure 8, item 1) on the
frame.
Figure 8
Figure 8
2. Make sure slots in the wear strips (Figure 8, item 2)
line up properly with frame slots (Figure 8, item 3).
Stainless Steel Sheet Bed Plates (Optional)
Typical Stainless Steel Sheet Bed Plates (Figure 9)
Figure 9
Figure 9
1. Attach the wear strips to the frame. Refer to “Standard
Wear Strips” on page 8.
2. Place the sheet bed plates (Figure 10, item 1) over the
wear strips (Figure 10, item 2).
Figure 10
Figure 10
1 Wear Strips
1
1
1
1
2
3
1 Bed Plates
2 Wear Strips
1
2
1
2
1
2

851-643 Rev. D 9 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Installation
Lifter Installation
Typical Lifter Components (Figure 11)
Figure 11
Figure 11
1. Slide the belt lift pivot bar (Figure 12, item 1) through
the designated holes in the frame. The pins on the belt
lift pivot bar should be located inside the frame side
rails.
Figure 12
Figure 12
2. Attach the lifter bars (Figure 12, item 2) to the belt lift
pivot bar (Figure 12, 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 12, item 3) to the belt
lift pivot rod.
Belt Installation
Typical Standard Belt (Figure 13)
Figure 13
Figure 13
1. Place the idler tail (Figure 14, item 1) in the UP
position.
Figure 14
Figure 14
1 Belt lift pivot bar
2 Lifter bars
3 Belt lift handle
4 M8 - 1.25 x 16 mm hex head cap screw
3
4
1
2
1
2
4
3
3
2
1
1Belt
WARNING
SEVERE HAZARD!
• ONLY DISCONNECT ONE PIVOT BRACKET
AT A TIME AND ONLY IF THE STANDS ARE
BOLTED TO THE FLOOR.
• Disconnecting more than one pivot bracket
at a time or not bolting the stands to the
floor can cause the conveyor to tip and may
result in serious injury.
1
1
1

Dorner Mfg. Corp. 10 851-643 Rev. D
7600 Series CE End Drive Conveyors
Installation
2. Lower the quick release arm (Figure 15, item 1) on one
of the stands. Note: if the conveyor is not equipped with
Quick Release (QR Type) stands, it will be necessary to
remove the entire stand. For detailed instructions, refer
to the “Sanitary Support Stands Installation,
Maintenance and Parts Manual.”
Figure 15
Figure 15
3. Slide the belt (Figure 16, item 1) on over the conveyor
frame (Figure 16, item 2).
Figure 16
Figure 16
4. Secure the quick release arm on the stand and repeat
steps 2 and 3 until the belt is around the entire length of
the conveyor.
5. Add tension to the belt by lowering the tip-up tail or by
sliding the idler tail out and tightening the nuts. Refer to
“Conveyor Belt Tensioning” on page 19.
6. Adjust the belt tracking as necessary. Refer to
“Conveyor Belt Tracking” on page 19.
Guide Installation
Typical Guide Components (Figure 17)
Figure 17
Figure 17
1. Position the guide (Figure 18, item 1) so that the flat
surface is facing the belt and then slide the guide onto
the frame rail (Figure 18, item 2).
Figure 18
Figure 18
2. Line up the guide holes with the holes in the frame.
1
1
2
1 Guide
2Pullpin
2
1
1
2
1
2

851-643 Rev. D 11 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Installation
3. Insert the pull pins (Figure 19, item 1) into the holes
in the guide (Figure 19, item 2).
Figure 19
Figure 19
LPZ Conveyors
Knuckles
1. Attach upper knuckle (Figure 20, item 1) to frame
(Figure 20, item 2) with hex rods (Figure 20, item 3)
and bolts (Figure 20, item 4).
Figure 20
Figure 20
2. Attach lower knuckle (Figure 21, item 1) to frame
(Figure 21, item 2) with hex rods (Figure 21, item 3),
and bolts (Figure 21, item 4).
Figure 21
Figure 21
3. Install hold down sleeve bearing (Figure 21, item 5),
and secure with cap screw. Repeat on opposite side.
4. Install return sleeve bearing (Figure 21, item 6), and
secure with clamp. Repeat on opposite side.
Belt
1. Slide belt (Figure 22, item 1) over knuckles and onto
top and bottom of wear strips.
Figure 22
Figure 22
1
2
1
2
2
3
3
4
2
4
6
5
4
3
3
1
2
1

Dorner Mfg. Corp. 12 851-643 Rev. D
7600 Series CE End Drive Conveyors
Installation
Guides
1. Install the belt return (Figure 23, item 1).
Figure 23
Figure 23
2. Slide the guides (Figure 24, item 2) onto the knuckle
frame, and secure with two pull pins
(Figure 24, item 3).
Figure 24
Figure 24
3. Repeat for opposite side of conveyor.
All Conveyors
Belt Return Installation
Flat Belt
Typical Flat Belt Components (Figure 25)
Figure 25
Figure 25
1. Slide the return shaft (Figure 26, item 1) up and
through the large slot (Figure 26, item 2) in the frame.
Figure 26
Figure 26
2. Push up on the return shaft (Figure 27, item 1) and
slide the notched end of the shaft through the small slot
(Figure 27, item 2) on the opposite side of the frame.
Figure 27
Figure 27
3. Repeat the procedure for all other belt returns.
Cleated Belt
Typical Cleated Belt Components (Figure 28)
Figure 28
Figure 28
1 Flat belt returns
1
3
2
1
1
1 Cleated belt returns
1
2
2
1
1
1

851-643 Rev. D 13 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Installation
1. Insert the notched end of the return shaft
(Figure 29, item 1) through the small hole
(Figure 29, item 2) in the inside of the conveyor
frame.
Figure 29
Figure 29
2. Repeat the procedure for all other belt returns.
Scraper Installation
Typical Scraper Components (Figure 30)
Figure 30
Figure 30
1. Attach the scraper adjust plate (Figure 30, item 1) and
the scraper mount plate (Figure 30, item 5) to the
frame using four M10-1.5 x 12 mm hex head cap
screws.
2. Slide the notched end of the scraper shaft
(Figure 31, item 1) through the adjustment plate
(Figure 31, item 2).
Figure 31
Figure 31
3. Insert the notched end of the scraper shaft
(Figure 32, item 1) so that it is situated within the
groove in the mounting plate (Figure 32, item 2).
Figure 32
Figure 32
4. Attach the scraper bar holders (Figure 33, item 1) to
the scraper shaft (Figure 33, item 2).
Figure 33
Figure 33
5. Attach the UWHM scraper (Figure 33, item 3) to the
scraper bar holders (Figure 33, item 1).
1 Scraper adjust plate
2 Scraper shaft
3 Scraper bar holder
4 UHMW scraper
5 Scraper mount plate
6 Pull pin
7 Handle
8 M10-1.50 hex head cap screws (x4)
2
1
8
1
3
7
2
5
4
6
1
2
3
4
5
6
7
8
2
1
2
1
1
2
3

Dorner Mfg. Corp. 14 851-643 Rev. D
7600 Series CE End Drive Conveyors
Installation
6. Insert the pin (Figure 34, item 1) to lock the scraper bar
in place (Figure 34, item 2).
Figure 34
Figure 34
7. Adjust the scraper to the desired position using the
scraper bar handle (Figure 34, item 3).
Figure 35
Figure 35
8. Secure the scraper by tightening the handle
(Figure 36, item 1).
Figure 36
Figure 36
Stand Installation
Typical Stand Components (Figure 37)
Figure 37
Figure 37
1. Properly support the conveyor.
CAUTION
CAUTION
Apply minimal pressure between the scraper
(Figure 35, item 1) and the belt
(Figure 35, item 2).
Positioning the scraper so that it is digging
into the belt will increase resistance, cause
unnecessary strain on the motor and lead to
premature belt failure.
1
2
3
1
2
1
2
1Conveyor
2 Stand
3 Knob
4 M10-1.50 x 12 mm hex head cap screws (x2)
1
3
1
4
2
1
4
2
3

851-643 Rev. D 15 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Installation
2. Attach the non-quick release side of the stand
(Figure 38, item 1) to the MOTOR SIDE of the
conveyor (Figure 38, item 2) using two M10-1.5 x
12mm hex head cap screws (Figure 38, item 3).
Figure 38
Figure 38
3. Attach the quick-release arm to the stand with the knob
(Figure 37, item 3).
For detailed assembly instructions, refer to the “Sanitary
Support Stands Installation, Maintenance and Parts
Manual.”
Drive Package Installation
Typical Motor Components (Figure 39) (end drive shown)
Figure 39
Figure 39
1. Attach the motor (Figure 40, item 1) to the gear
reducer (Figure 40, item 2).
Figure 40
Figure 40
For detailed assembly instructions, refer to the “7600
Series End Drive Packages Installation, Maintenance and
Parts Manual.”
1 End drive package
2 Motor
3
2
1
1
2
1
2
1
2

Dorner Mfg. Corp. 16 851-643 Rev. D
7600 Series CE End Drive Conveyors
Preventive Maintenance and Adjustment
Required Tools
• 14 mm wrench (or adjustable wrench)
• 4 mm or 5/32 in. hex wrench (for bearing shaft assembly
fasteners)
• 8 mm wrench
• 10 mm wrench
• 17 mm wrench
• 3 mm hex wrench
• 5 mm hex wrench
Checklist
• Keep service parts on hand. Refer to the "Service Parts"
section starting on page 30 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
Figure 41
2. Place the tip up tail (Figure 42, item 1) in the up
position.
Figure 42
Figure 42
3. Lift up on the belt (Figure 42, item 2).
Conveyors with Lifters
1. Remove the guides, if applicable, by removing the pull
pins (Figure 43, item 1) that connect the guide
(Figure 43, item 2) to the frame.
2. Place the tip up tail in the up position.
3. Use the lifter handle (Figure 43, item 1) to raise the
belt (Figure 43, item 2).
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.
CAUTION
CAUTION
DO NOT submerge or soak bearing
assemblies. This will reduce the life of the
bearing.
1
2
1
2
2
1

851-643 Rev. D 17 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Preventive Maintenance and Adjustment
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 17.
• Refer to “Spindle Removal” on page 20.
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 44, item 1) on the exterior of the bearing shaft
assembly.
Figure 44
Figure 44
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 8.
• Refer to “Belt Return Installation” on page 12.
Scraper
Replace the UHMW scraper if it becomes worn.
Refer to “Scraper Installation” on page 13 for scraper
installation instructions.
Maintaining the Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
Damage to the belt, surface cuts and / or
wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Accumulated dirt
• Foreign material inside the conveyor
• Improperly positioned accessories
• Excessive load on belt
• Dirt impacted on spindle
• Excessive or improper side loading
• Improper tracking
Skipping indicates:
• Excessive load on belt
• Worn spindle or impacted dirt on drive spindle
• Improper tracking
Conveyor Belt Replacement
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.
1
NOTE
Visit www.dorner.com for complete list of
troubleshooting solutions.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.

Dorner Mfg. Corp. 18 851-643 Rev. D
7600 Series CE End Drive Conveyors
Preventive Maintenance and Adjustment
Conveyors with Guides
1. Remove the pull pins (Figure 45, item 1) that connect
the guide (Figure 45, item 2) to the frame.
Figure 45
Figure 45
2. Remove the guide (Figure 46, item 1) from the
conveyor (Figure 46, item 2).
Figure 46
Figure 46
Standard Belts
1. Place the idler tail (Figure 47, item 1) in the UP
position.
Figure 47
Figure 47
2. Lower the quick release arm (Figure 48, item 1) on one
of the stands. Note: if the conveyor is not equipped with
Quick Release (QR Type) stands, it will be necessary to
remove the entire stand. For detailed instructions, refer
to the “Sanitary Support Stands Installation,
Maintenance and Parts Manual.”
Figure 48
Figure 48
3. Slide the old belt (Figure 49, item 1) off the conveyor
frame (Figure 49, item 2).
Figure 49
Figure 49
4. Secure the quick release arm on the stand and repeat
steps 2 and 3 until the entire belt is off the conveyor.
5. Replace the old belt with a new one. Refer to “Belt
Installation” on page 9.
1
2
1
2
1
WARNING
SEVERE HAZARD!
• ONLY DISCONNECT ONE PIVOT BRACKET
AT A TIME AND ONLY IF THE STANDS ARE
BOLTED TO THE FLOOR.
• Disconnecting more than one pivot bracket
at a time or not bolting the stands to the
floor can cause the conveyor to tip and may
result in serious injury.
1
1
2

851-643 Rev. D 19 Dorner Mfg. Corp.
7600 Series CE End Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Tensioning
1. Loosen the back nuts (Figure 50, item 1)on both sides
of the idler tail shaft.
Figure 50
Figure 50
2. Turn the front nuts closest to the tail
(Figure 51, item 1) clockwise in order to increase
tension on the belt.
Figure 51
Figure 51
Figure 52
Figure 52
3. Tighten the back nuts (Figure 51, item 2) to secure the
tail.
Conveyor Belt Tracking
Adjust the lengths of the idler tail shafts to correct
conveyor belt tracking.
For v-guide belts, track until the bulge in the conveyor belt
(Figure 53, item 1) lies flat.
Figure 53
Figure 53
To adjust conveyor belt tracking:
1. Loosen the back nut (Figure 51, item 2) on the idler
tail shaft that needs to be adjusted.
2. Tighten or loosen the front nut (Figure 51, item 1) on
the idler tail shaft adjust the belt tracking.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
CAUTION
CAUTION
Over-tensioning of conveyor may stretch
conveyor belt and reduce bearing life.
CAUTION
CAUTION
Ensure that there is at least 152 mm from the
frame to the end of the tail.
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CAUTION
CAUTION
Ensure that there is at least 152 mm from the
frame to the end of the tail.
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Dorner Mfg. Corp. 20 851-643 Rev. D
7600 Series CE End Drive Conveyors
Preventive Maintenance and Adjustment
a. Loosen the nut to shorten the length of the idler tail
shaft and bring the belt closer to that side of the
conveyor (Figure 54).
Figure 54
Figure 54
b. Tighten the nut to increase the length of the idler
tail shaft and move the belt away from that side of
the conveyor (Figure 55).
Figure 55
Figure 55
3. Tighten the back nut on the idler tail shaft when
finished.
Spindle Removal
1. Remove the conveyor belt to access the spindles. Refer
to “Conveyor Belt Replacement” on page 17.
2. Remove the spindle by following the instructions for
the specific spindle type:
• A - Drive Spindle Removal
• B - Idler Spindle Removal
• C - .5" Nose Bar Idler Spindle Removal
• D - 1" Nose Bar Idler Spindle Removal
• E - 1.875" Nose Bar Idler Spindle Removal
A - Drive Spindle Removal
1. Remove the plastic cap on the end of the motor and
remove the socket head screw(Figure 56, item 1) and
the bore plug (Figure 56, item 2).
Figure 56
Figure 56
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
WARNING
PUNCTURE HAZARD!
Handle drive shaft keyway with care. It may
be sharp and could puncture the skin,
causing serious injury.
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