Dorner AquaGard 7350 Series User manual

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851-880 Rev. A Record Conveyor Serial Number Here
7350 Series Version 2
Positive Drive Conveyors
Installation, Maintenance and Parts Manual

Dorner Mfg. Corp. 2 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Table of Contents
Table of Contents ................................................................ 2
Introduction ......................................................................... 3
Warnings – General Safety.................................................. 4
Product Description ............................................................. 5
Specifications ...................................................................... 6
7350 Series Version 2 Positive Drive Conveyors............ 6
Conveyor Supports .......................................................... 7
Specifications................................................................... 7
Installation ........................................................................... 8
Required Tools................................................................. 8
Recommended Installation Sequence .............................. 8
Conveyors Longer than 10 ft (3048 mm) ........................ 8
Connecting Components .............................................. 8
Stand Installation ............................................................. 9
Belt Installation................................................................ 9
Return Shoe.................................................................... 10
Belt Returns ................................................................... 11
Belt Returns 660 mm Wide and Wider ...................... 11
Belt Returns Under 660 mm Wide............................. 12
Guide Installation........................................................... 13
High Side Guides ....................................................... 13
Adjustable Guides ...................................................... 14
Drive Package Installation ............................................. 14
Preventive Maintenance and Adjustment.......................... 15
Required Tools............................................................... 15
Checklist ....................................................................... 15
Cleaning ......................................................................... 15
Lubrication..................................................................... 15
Maintaining the Conveyor Belt...................................... 15
Troubleshooting ......................................................... 15
Conveyor Belt Replacement .......................................... 15
Wear Strips .................................................................... 17
Wear Strip Removal ................................................... 17
Side Rail Wear Strip Replacement............................. 17
Drive Spindle Replacement ........................................... 18
Idler Spindle Replacement............................................. 19
Bearing Replacement..................................................... 21
Drive and Idler Bearing Replacement........................ 21
Belt Return Maintenance ............................................... 21
Belt Returns 660 mm Wide and Wider ...................... 21
Belt Returns Under 660 mm Wide............................. 23
Service Parts ...................................................................... 24
End Drive Tail ............................................................... 24
Tip-Up Idler Tail............................................................ 26
Frame ............................................................................. 28
Connecting Assembly .................................................... 30
25 mm High Sides.......................................................... 31
75 mm High Sides.......................................................... 32
152 mm High Sides........................................................ 33
Fully Adjustable Round Guides..................................... 34
Tool-Less Fully Adjustable Round Guides ................... 35
Fully Adjustable Flat Guides ......................................... 36
Tool-Less Fully Adjustable Flat Guides........................ 37
Belt Returns 660 mm Wide and Wider.......................... 38
Belt Returns Under 660 mm Wide ................................ 39
Configuring Conveyor Belt Part Number...................... 40
Flat Belt Part Number Configuration ......................... 40
Notes.................................................................................. 41
Return Policy ..................................................................... 42

851-880 Rev. A 3 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
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 7350 Series conveyors have patents pending.
Dorner reserves the right to make changes at any time
without notice or obligation.
Dorner has convenient, pre-configured kits of Critical
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.
Recommended Critical Service Parts and Kits are marked in
the Service Parts section of this manual with the Key Service
Parts symbol .
CAUTION
Some illustrations may show guards
removed. DO NOT operate equipment without
guards.

Dorner Mfg. Corp. 4 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Warnings – General Safety
WARNING
The safety alert symbol, black triangle with white
exclamation, is used to alert you to potential
personal injury hazards.
DANGER
SEVERE HAZARD!
KEEP OFF CONVEYORS. Climbing, sitting,
walking or riding on conveyor will result in death
or 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.
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!
• 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.

851-880 Rev. A 5 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Product Description
Refer to (Figure 1) for typical conveyor components.
Figure 1
Figure 1
1Conveyor
2 Gearmotor
3Belt
4 Support Stands
5DriveEnd
6IdlerEnd
7 Guides
5
2
6
4
3
1
7

Dorner Mfg. Corp. 6 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Specifications
7350 Series Version 2 Positive Drive Conveyors
Conveyor Length
Drive Tail Type
Drive Shaft Position
Conveyor Width
73P M WWW LLLLL PA
Document Language
Profile A side
PD -
DA
Profile D side
Belt Type
-X12
Auxiliary Shaft Exists
BB
Tail 2 Auxiliary Shaft Option
Tail 1 Auxiliary Shaft Option
SS
Drive Stand Location
Idler Stand Location

851-880 Rev. A 7 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Specifications
Conveyor Supports Figure 2
Figure 2
Specifications
Maximum Distances:
1 = Support Stand on Drive End = 610 mm (24")
2 = Between Support Stands = 2438 mm (8 ft)**
3 = Support Stand on Idler End = 762 mm (30")
** For conveyors longer than 3048 mm (10 ft),
install stand mount kit at frame joint.
3 2 21
Conveyor Width Reference (WWW) 152, 203, 254, 305, 356, 406, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914
Conveyor Belt Width 152 mm (6") 203 mm (8"), 254 mm (10"), 305 mm (12"), 356 mm (14"), 406 mm (16"),
457 mm (18"), 508 mm (20"), 559 mm (22"), 610 mm (24"), 660 mm (26"), 711 mm (28"),
762 mm (30"), 813 mm (32"), 864 mm (34"), 914 mm (36")
Maximum Conveyor Load
(See NOTE Below) 97 kg/ m2(20 lbs. / ft2) with a maximum of 227 kg (500 lbs.)
Belt Travel 305 mm (12") per revolution of pulley
Maximum Belt Speed 71 m/minute (233 ft/minute)
Conveyor Length Reference (LLLLL) 00915 - 25000 in 00005 increments
Conveyor Length 915 mm (36") - 25000 mm (984") in 5 mm (.20") increments
NOTE
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

Dorner Mfg. Corp. 8 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Installation
Figure 3
Figure 3
Required Tools
• Level
• 10 mm wrench
• 13 mm wrench
Recommended Installation
Sequence
1. Assemble the conveyor (if required). Refer to
“Conveyors Longer than 10 ft (3048 mm)” on page 8.
2. Attach the stands. Refer to “Stand Installation” on
page 9.
3. Install the belt. Refer to “Belt Installation” on page 9.
4. Install belt returns. Refer to “Belt Returns” on page 11.
5. Install the gearmotor. Refer to “Drive Package
Installation” on page 14.
Conveyors Longer than 10 ft
(3048 mm)
Connecting Components
Typical connecting components (Figure 4).
Figure 4
Figure 4
1. Locate and arrange conveyor sections by section labels
(Figure 5, item 1).
Figure 5
Figure 5
2. Join both conveyor sections and install connecting
plates (Figure 4, item 1) with four screws
(Figure 4, item 2) on both sides. Tighten to 14-16 ft-lbs
(19-22 Nm).
CAUTION
Conveyor MUST be mounted straight, flat and
level within confines of conveyor. Use a level
(Figure 3, item 1) during setup.
11 Connecting Plate (x2)
2 Hex Head Cap Screw (x8)
3 Conveyor Frames
1
32
11

851-880 Rev. A 9 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Installation
Stand Installation
Typical stand components (Figure 6).
Figure 6
Figure 6
1. Position the stands on a flat, level surface.
2. Attach the stands (Figure 7, item 1) to the frame.
Tighten to 14-16 ft-lbs (19-22 Nm).
Figure 7
Figure 7
Belt Installation
1. Place temporary support stands (Figure 8, item 1) at
both ends of the conveyor. Place an additional support
stand (Figure 8, item 2) under the drive motor, if
equipped. See WARNING.
Figure 8
Figure 8
2. Remove fasteners (Figure 9, item 1) securing the stand
brackets from one side of the conveyor and remove
brackets.
Figure 9
Figure 9
NOTE
For detailed assembly instructions, please
see support stand manual 851-885.
1 Conveyor Frame
2 Stand
3 Carriage Bolt (x4)
4 Hex Nut (x4)
1
2
3
4
1
WARNING
Removing mounting brackets without support
under gearmotor will cause conveyor to tip,
causing severe injury.
PROVIDE SUPPORT UNDERNEATH THE
GEARMOTOR WHEN CHANGING THE BELT.
12
1
1
1

Dorner Mfg. Corp. 10 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Installation
3. Rotate tip-up idler tail (Figure 10, item 1) upward as
shown.
Figure 10
Figure 10
4. Position the belt (Figure 11, item 1) onto the conveyor
(Figure 11, item 2).
Figure 11
Figure 11
5. Install stand brackets to conveyor with fasteners.
Figure 12
Figure 12
6. Repeat procedure for the opposite end of the conveyor
to fully install the belt.
Figure 13
Figure 13
Return Shoe
1. Attach one bracket (Figure 14, item 1) to each side of
the conveyor loosely with two screws
(Figure 14, item 2).
Figure 14
Figure 14
2. Insert return shoe (Figure 15, item 1).
Figure 15
Figure 15
3. Adjust bracket to engage belt. Tighten screws.
NOTE
Loosen nuts and adjust screws
(Figure 12, item 1) to level tail (as needed).
1
1
2
1
NOTE
To lower idler tail, push idler tail
(Figure 13, item 1) to its maximum up
position, and move locking lever
(Figure 13, item 2) up to disengage lock.
Lower tail slowly.
2
1
12
1

851-880 Rev. A 11 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Installation
Belt Returns
Belt Returns 660 mm Wide and Wider
Typical return components (Figure 16).
Figure 16
Figure 16
1. Install carriage bolt (Figure 17, item 1) through frame
rail.
Figure 17
Figure 17
2. Install return bracket (Figure 18, item 1).
Figure 18
Figure 18
3. Install return clip (Figure 19, item 1) and loosely secure
with nut (Figure 19, item 2).
Figure 19
Figure 19
4. Repeat on the opposite side of the conveyor.
5. Install belt return assembly (Figure 20, item 1) onto
return brackets (Figure 20, item 2).
Figure 20
Figure 20
1HexNut
2 Return Clip
3 Return Bracket
4 Carriage Bolt
5Shaft
6 Retaining Plate
7 Spacer
8Puck
5
2
1
3
7
8
4
6
1
1
1
2
12

Dorner Mfg. Corp. 12 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Installation
6. Rotate return clip (Figure 21, item 1) down against
shaft (Figure 21, item 2) on both sides of conveyor.
Tighten nuts (Figure 21, item 3).
Figure 21
Figure 21
Belt Returns Under 660 mm Wide
Typical return components (Figure 22).
Figure 22
Figure 22
1. Install carriage bolt (Figure 23, item 1) through frame
rail.
Figure 23
Figure 23
2. Install return bracket (Figure 24, item 1).
Figure 24
Figure 24
3. Install return clip (Figure 25, item 1) and loosely secure
with nut (Figure 25, item 2).
Figure 25
Figure 25
4. Repeat on the opposite side of the conveyor.
1 Spacer
2Puck
3 Stub Shaft
4HexNut
5 Return Clip
6 Return Bracket
7 Carriage Bolt
1
2
3
1
234
5
76
1
1
1
2

851-880 Rev. A 13 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Installation
5. Install each puck (Figure 26, item 1) onto return
bracket (Figure 26, item 2) with stub shaft
(Figure 26, item 3) and spacer (Figure 26, item 4).
Figure 26
Figure 26
6. Rotate return clip (Figure 27, item 1) down against
shaft (Figure 27, item 2) on both sides of conveyor.
Tighten nuts (Figure 27, item 3).
Figure 27
Figure 27
Guide Installation
High Side Guides
1. Remove the top screw (Figure 28, item 1) from the
conveyor side.
Figure 28
Figure 28
2. Assemble the mounting block (Figure 29, item 1) to the
conveyor side with the screw (Figure 29, item 2)
provided.
Figure 29
Figure 29
3. Install guide (Figure 30, item 1) into the slot
(Figure 30, item 2) of the mounting block and tighten
screws (Figure 30, item 3).
Figure 30
Figure 30
4. Install the connecting plate (Figure 31, item 1) over the
studs.
Figure 31
Figure 31
4
2
13
1
2
3
1
1
2
1
2
3
3
1

Dorner Mfg. Corp. 14 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Installation
5. Install nuts (Figure 32, item 1) and tighten.
Figure 32
Figure 32
Adjustable Guides
1. Remove the top screw (Figure 33, item 1).
Figure 33
Figure 33
2. Install the guide post (Figure 33, item 2) resting on
lower screw (Figure 33, item 3). Reinstall top screw
and tighten.
3. Install guide rail (Figure 34, item 1) into rail clamp.
Tighten fastener (Figure 34, item 2) to secure.
Figure 34
Figure 34
Drive Package Installation
For detailed assembly instructions, refer to the appropriate
drive package manual:
• 851-881 7350 Series Version 2 Side Mount Drives
• 851-883 7350 Series Version 2 Bottom Mount Drives
1. Attach the motor (Figure 35, item 1) to the gear reducer
(Figure 35, item 2).
Figure 35
Figure 35
1
1
3
2
NOTE
See pages 34 to 37 for detailed view of guide
assembly.
2
1
1
2

851-880 Rev. A 15 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
Required Tools
•1/8"hex wrench
• 6 mm hex wrench
• 8 mm hex wrench
• 10 mm wrench
• 13 mm wrench
• 17 mm wrench
• Flat Blade Screwdriver
Checklist
• Keep critical service parts on hand. Refer to the "Service
Parts" section starting on page 24 for recommendations.
• Replace any worn or damaged parts.
Cleaning
Lubrication
No lubrication is required. Replace bearings if worn.
Maintaining the Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
Damage to the belt, surface cuts and/or wear indicates:
• 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
• Worn return shoe
Conveyor Belt Replacement
1. Remove guides (Figure 36, item 1) when required.
Figure 36
Figure 36
2. Remove belt returns:
a. For flat returns 660 mm wide and wider, refer to
“Belt Returns 660 mm Wide and Wider” on
page 21. Follow steps 1 and 2.
NOTE
Proper conveyor application, cleaning, and
sanitation are the responsibility of the end user.
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.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1

Dorner Mfg. Corp. 16 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
b. For cleated returns and flat returns under 660 mm
wide, refer to “Belt Returns Under 660 mm Wide”
on page 23. Follow steps 1 and 2.
3. Place temporary support stands (Figure 37, item 1) at
both ends of the conveyor. Place an additional support
stand (Figure 37, item 2) under the drive motor, if
equipped. See WARNING.
Figure 37
Figure 37
4. Remove fasteners (Figure 38, item 1) securing the
stand brackets from one side of the conveyor and
remove brackets.
Figure 38
Figure 38
5. Rotate idler end (Figure 39, item 1) upward as shown.
Figure 39
Figure 39
6. Remove the belt (Figure 40, item 1) from the conveyor
(Figure 40, item 2).
Figure 40
Figure 40
7. Repeat procedure for the opposite end of the conveyor
to fully remove the belt.
8. Replace the belt. Refer to “Belt Installation” on page 9.
Figure 41
Figure 41
WARNING
Removing mounting brackets without support
under gearmotor will cause conveyor to tip,
causing severe injury.
PROVIDE SUPPORT UNDERNEATH THE
GEARMOTOR WHEN CHANGING THE BELT.
12
1
1
1
NOTE
To lower idler tail, push idler tail
(Figure 41, item 1) to its maximum up
position, and move locking lever
(Figure 41, item 2) up to disengage lock.
Lower tail slowly.
1
1
2
2
1

851-880 Rev. A 17 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
Wear Strips
Replace the wear strips if they become worn.
Typical standard wear strips (Figure 42).
Figure 42
Figure 42
Wear Strip Removal
1. Remove conveyor belt. Refer to “Conveyor Belt
Replacement” on page 15.
2. Remove worn wear strips (Figure 43, item 1) from the
frame notches.
Figure 43
Figure 43
3. Attach new wear strips by installing the locating hole
(Figure 43, item 2) over the tab (Figure 43, item 3) on
the crossmember.
Side Rail Wear Strip Replacement
1. Remove two self-tapping screws (Figure 44, item 1)
retaining the wear strip to the frame.
Figure 44
Figure 44
2. Remove the wear strip (Figure 44, item 2) from the
frame rail.
3. Replace with new wear strip and self-tapping screws.
1 Side Wear Strips
2 Center Wear Strips
2
1
NOTE
Angled end of the wear strip must face up.
12
3
21

Dorner Mfg. Corp. 18 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
Drive Spindle Replacement
1. Remove the gearmotor. For detailed instructions, refer
to the appropriate drive package manual.
2. Remove conveyor belt. Refer to “Conveyor Belt
Replacement” on page 15.
3. Remove two screws (Figure 45, item 1) securing drive
support brackets (Figure 45, item 2) to center member.
Repeat on opposite side of the conveyor.
Figure 45
Figure 45
4. Remove four headplate screws (Figure 46, item 1).
Repeat on opposite side of the conveyor.
Figure 46
Figure 46
5. Slide the drive spindle assembly (Figure 47, item 1)
and drive tail blocks (Figure 47, item 2) off of frame
(Figure 47, item 3).
Figure 47
Figure 47
6. Remove the bearing cover (Figure 48, item 1).
Figure 48
Figure 48
7. Loosen two set screws (Figure 49, item 1).
Figure 49
Figure 49
8. Slide the headplate with bearing off the shaft.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
2
1
1
31
2
1
1
1

851-880 Rev. A 19 Dorner Mfg. Corp.
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
9. Remove the retaining clip (Figure 50, item 1) off the
shaft (Figure 50, item 2).
Figure 50
Figure 50
10. Remove the sprockets (Figure 51, item 1) and sprocket
key (Figure 51, item 2) off the shaft
(Figure 51, item 3).
Figure 51
Figure 51
11. Repeat for opposite side headplate.
12. If necessary, refer to “Bearing Replacement” on page 21
for replacing bearing in each headplate.
13. Install parts in reverse order of removal.
Idler Spindle Replacement
1. Remove conveyor belt. Refer to “Conveyor Belt
Replacement” on page 15.
2. Remove four headplate screws (Figure 52, item 1).
Repeat on opposite side of the conveyor.
Figure 52
Figure 52
3. Slide the idler spindle assembly (Figure 53, item 1) off
the pivot tail blocks (Figure 53, item 2).
Figure 53
Figure 53
NOTE
Make note of the recessed areas
(Figure 50, item 3) of shaft where retaining
clip seats into.
1
2
3
3
2
3
1
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
1
2
1

Dorner Mfg. Corp. 20 851-880 Rev. A
7350 Series Version 2 Positive Drive Conveyors
Preventive Maintenance and Adjustment
4. Remove the headplate (Figure 54, item 1) from spindle.
Repeat on opposite side.
Figure 54
Figure 54
5. Slide off the round puck spacer (Figure 55, item 1).
Figure 55
Figure 55
6. Slide off puck (Figure 55, item 2) and replace if worn.
7. Repeat as needed.
8. Slide off wear belt shoe (Figure 56, item 1) and replace
if worn.
Figure 56
Figure 56
9. Repeat as needed.
10. Remove belt support J-Legs (Figure 57, item 1).
Figure 57
Figure 57
11. Install parts in reverse order of removal.
NOTE
Make note of the notch (Figure 54, item 2)
on the spindle where it seats into notched
area (Figure 54, item 3) in headplate.
1
2
3
1
2
NOTE
Make note of the notch (Figure 56, item 2)
where each belt shoe seats onto support
bracket (Figure 56, item 3).
NOTE
Before installing shoe, make sure narrow
surface (Figure 57, item 2) of J-Leg is to the
outside, and wider surface
(Figure 57, item 3) is installed toward the
inside of conveyor.
2
3
1
1
2
3