Dorner AquaGard 7350 Series User manual

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851-879 Rev. C Record Conveyor Serial Number Here
7350 Series Version 2
Belted Conveyors
Installation, Maintenance and Parts Manual

Dorner Mfg. Corp. 2 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Table of Contents
Introduction ......................................................................... 3
Warnings – General Safety.................................................. 4
Product Description ............................................................. 5
Specifications ...................................................................... 6
7350 Series Version 2 Conveyors.................................... 6
Flat Belt End Drive 7350 Series Version 2 .................. 6
Flat Belt Center Drive 7350 Series Version 2.............. 6
Cleated Belt End Drive 7350 Series Version 2 ............ 6
Flat Belt LPZ 7350 Series Version 2 ........................... 7
Cleated Belt LPZ 7350 Series Version 2 ..................... 7
Conveyor Supports .......................................................... 8
Specifications................................................................... 8
Installation ........................................................................... 9
Required Tools................................................................. 9
Recommended Installation Sequence .............................. 9
Conveyors Longer than 10 ft (3048 mm) ........................ 9
Connecting Components .............................................. 9
Z-Frame Conveyors ....................................................... 10
Upper Knuckles.......................................................... 10
Lower Knuckles ......................................................... 11
Stand Installation ........................................................... 12
Belt Installation.............................................................. 12
Belt Returns ................................................................... 13
Flat Belt Returns 508 mm Wide and Wider............... 13
Cleated Belt and Flat Belt Returns
Under 508 mm Wide .................................................. 15
Guide Installation........................................................... 16
High Side Guides ....................................................... 16
Adjustable Guides ...................................................... 17
Drive Package Installation ............................................. 17
Preventive Maintenance and Adjustment.......................... 18
Required Tools............................................................... 18
Checklist ....................................................................... 18
Cleaning ......................................................................... 18
Lubrication..................................................................... 18
Maintaining the Conveyor Belt...................................... 18
Troubleshooting ......................................................... 18
Conveyor Belt Replacement .......................................... 18
Center Drive Conveyor Belt Replacement .................... 20
Belt Removal.............................................................. 20
Belt Installation .......................................................... 24
Conveyor Belt Tensioning ............................................. 25
Center Drive Conveyor Belt Tensioning ....................... 25
A - With Pneumatic Tensioning................................. 25
B - With Manual Tensioning...................................... 26
Conveyor Belt Tracking................................................. 27
Center Drive Module Tracking...................................... 27
V-Guided Belts........................................................... 27
Non V-Guided Belts................................................... 27
Drive Spindle Replacement ........................................... 28
Idler Spindle Replacement............................................. 29
Nose Bar Idler Spindle Replacement............................. 30
Center Drive Spindle Replacement................................ 32
A - Tensioner Pulley Removal ................................... 32
B - Idler Spindle Replacement ................................... 34
C - Drive Spindle Replacement.................................. 35
Bearing Replacement..................................................... 36
Drive and Idler Bearing Replacement........................ 36
Center Drive Bearing Replacement............................ 36
Knuckle Maintenance..................................................... 37
Lower Knuckle ........................................................... 37
Bearing Replacement .............................................. 37
Puck Replacement................................................... 37
Upper Knuckle............................................................ 39
Bearing Replacement .............................................. 39
Puck Replacement................................................... 39
Belt Return Maintenance................................................ 41
Flat Belt Returns 508 mm Wide and Wider ............... 41
Cleated Belt and Flat Belt Returns
Under 508 mm Wide................................................... 42
Notes .................................................................................. 43
Service Parts....................................................................... 44
End Drive Tail ................................................................ 44
Tip-Up Idler Tail ............................................................ 46
Fixed Idler Tail for Center Drive Conveyors ................. 48
Tip-Up Nose Bar Idler Tail ............................................ 50
Fixed Nose Bar Idler Tail for Center Drive Conveyors . 52
Center Drive Module...................................................... 54
Frame.............................................................................. 56
Upper Knuckle ............................................................... 58
Lower Knuckle ............................................................... 60
Connecting Assembly..................................................... 62
25 mm High Sides .......................................................... 63
75 mm High Sides .......................................................... 64
152 mm High Sides ........................................................ 65
Fully Adjustable Round Guides ..................................... 66
Tool-Less Fully Adjustable Round Guides .................... 67
Fully Adjustable Flat Guides.......................................... 68
Tool-Less Fully Adjustable Flat Guides ........................ 69
25 mm Cleated High Sides ............................................. 70
75 mm Cleated High Sides ............................................. 71
152 mm Cleated High Sides ........................................... 72
Flat Belt Returns 508 mm Wide and Wider ................... 73
Cleated Belt and Flat Belt Returns
Under 508 mm Wide ...................................................... 74
Roller Transfer ............................................................... 75
Configuring Conveyor Belt Part Number ...................... 76
Flat Belt Part Number Configuration.......................... 76
Cleated Belt Part Number Configuration.................... 76
Notes .................................................................................. 77
Return Policy...................................................................... 78

851-879 Rev. C 3 Dorner Mfg. Corp.
7350 Series Version 2 Belted 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. 4 851-879 Rev. C
7350 Series Version 2 Belted 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.

851-879 Rev. C 5 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Product Description
Refer to (Figure 1) for typical conveyor components.
Figure 1
Figure 1
1Conveyor
2 Gearmotor
3 Belt (Flat Belt Shown)
4 Support Stands
5DriveEnd
6IdlerEnd
7 Guides
5
2
6
4
3
1
7

Dorner Mfg. Corp. 6 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Specifications
7350 Series Version 2 Conveyors
Flat Belt End Drive 7350 Series Version 2
Flat Belt Center Drive 7350 Series Version 2
Cleated Belt End Drive 7350 Series Version 2
Conveyor Length
V-Guide
Idler Type
Drive Position
Conveyor Width
73E M WWW LLLLL V PA
Document Language
Profile A side
PD -
IA
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
Conveyor Length
V-Guide
Idler Type
Drive Position
Conveyor Width
73M M WWW LLLLL V PA
Document Language
Profile A side
PD -
IA
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
M
Center Drive Type
Conveyor Length
V-Guide
Drive Type
Drive Position
Conveyor Width
73C M WWW LLLLL V P
Document Language
Profiles
B-
DP
Cleat Type
Cleat Spacing
-X12
Auxiliary Shaft Exists
SSSS
Tail 2 Auxiliary Shaft Option
Tail 1 Auxiliary Shaft Option
SS
Drive Stand Location
Idler Stand Location

851-879 Rev. C 7 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Specifications
Flat Belt LPZ 7350 Series Version 2
Cleated Belt LPZ 7350 Series Version 2
V-Guide
Idler Type
Drive Position
Conveyor Width
73E M WWW LLLL V
Document Language
Profiles
PP -
IA
Belt Type
-X12
Auxiliary Shaft Exists
BB
Tail 2 Auxiliary Shaft Option
Tail 1 Auxiliary Shaft Option
SS
Drive Stand Location
Idler Stand Location
-LLLL AA E
Direction
Angle
L2 Section Length
L1 Section Length
V-Guide
Drive Position
Conveyor Width
73C M WWW LLLL V
Document Language
Profiles
P-
A
Cleat Type
-X12
Auxiliary Shaft Exists
B
Tail 2 Auxiliary Shaft Option
Tail 1 Auxiliary Shaft Option
SS
Drive Stand Location
Idler Stand Location
-LLLL -LLLL AA E
Direction
Angle
L3 Section Length
L2 Section Length
L1 Section Length
SSSS
Cleat Spacing

Dorner Mfg. Corp. 8 851-879 Rev. C
7350 Series Version 2 Belted 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 229 mm (9") per revolution of pulley
Maximum Belt Speed 91 m/minute (300 ft/minute)
Conveyor Length Reference (LLLLL) 00915 - 12190 in 00005 increments
Conveyor Length 915 mm (36") - 12190 mm (480") 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

851-879 Rev. C 9 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Installation
Figure 3
Figure 3
Required Tools
• Level
• Torque wrench
•5/32"hex wrench
• 10 mm wrench
• 13 mm wrench
• 14 mm wrench
• 17 mm wrench
Recommended Installation
Sequence
1. Assemble the conveyor (if required). Refer to
“Conveyors Longer than 10 ft (3048 mm)” on page 9.
2. Attach the stands. Refer to “Stand Installation” on
page 12.
3. Install the belt. Refer to “Belt Installation” on page 12.
4. Install belt returns. Refer to “Belt Returns” on page 13.
5. Install the gearmotor. Refer to “Drive Package
Installation” on page 17.
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

Dorner Mfg. Corp. 10 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Installation
Z-Frame Conveyors
Upper Knuckles
1. Attach upper knuckle (Figure 6, item 1) to frame using
four screws (Figure 6, item 2) and two plates
(Figure 7, item 1) on each side of the upper knuckle
assembly.
Figure 6
Figure 6
Figure 7
Figure 7
2. Remove screws (Figure 8, item 1).
Figure 8
Figure 8
3. Remove bearing guard (Figure 9, item 1) with bearing.
Figure 9
Figure 9
4. Install belt. Refer to “Belt Installation” on page 12.
5. Install bearing guard and bearing.
6. Tighten all screws to 14-16 ft-lbs (19-22 Nm).
NOTE
Be sure all frame sections are properly
supported during Z-Frame assembly.
1
2
2
22
1
1
1

851-879 Rev. C 11 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Installation
Lower Knuckles
1. Attach lower knuckle (Figure 10, item 1) to frame
using four screws (Figure 10, item 2) and two plates
(Figure 11, item 1) on each side of the lower knuckle
assembly.
Figure 10
Figure 10
Figure 11
Figure 11
2. Remove screws (Figure 12, item 1).
Figure 12
Figure 12
3. Remove bearing guard (Figure 13, item 1) with
bearing.
Figure 13
Figure 13
4. Install belt. Refer to “Belt Installation” on page 12.
5. Install bearing guard and bearing.
6. Tighten all screws to 14-16 ft-lbs (19-22 Nm).
1
2
2
2
1
1
1

Dorner Mfg. Corp. 12 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Installation
Stand Installation
Typical stand components (Figure 14).
Figure 14
Figure 14
1. Position the stands on a flat, level surface.
2. Attach the stands (Figure 15, item 1) to the frame.
Tighten screws to 14-16 ft-lbs (19-22 Nm).
Figure 15
Figure 15
Belt Installation
1. Place temporary support stands (Figure 16, item 1) at
both ends of the conveyor. Place an additional support
stand (Figure 16, item 2) under the drive motor, if
equipped. See WARNING.
Figure 16
Figure 16
2. Remove fasteners (Figure 17, item 1) securing the
stand brackets from one side of the conveyor and
remove brackets.
Figure 17
Figure 17
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

851-879 Rev. C 13 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Installation
3. Rotate idler end (Figure 18, item 1) upward as shown.
Figure 18
Figure 18
4. Position the belt (Figure 19, item 1) onto the conveyor
(Figure 19, item 2).
Figure 19
Figure 19
5. Install stand brackets to conveyor with fasteners.
Figure 20
Figure 20
6. Repeat procedure for the opposite end of the conveyor
to fully install the belt.
Figure 21
Figure 21
Belt Returns
Flat Belt Returns 508 mm Wide and Wider
Typical flat return components (Figure 22).
Figure 22
Figure 22
NOTE
Loosen nuts and adjust screws
(Figure 20, item 1) to level tail (as needed).
1
1
2
1
NOTE
To lower idler tail, push idler tail
(Figure 21, item 1) to its maximum up
position, and move locking lever
(Figure 21, item 2) up to disengage lock.
Lower tail slowly.
1HexNut
2 Return Clip
3 Return Bracket
4 Carriage Bolt
5 Shaft
6 Retaining Plate
7 Spacer
8Puck
2
1
5
2
1
3
7
8
4
6

Dorner Mfg. Corp. 14 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Installation
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.
5. Install belt return assembly (Figure 26, item 1) onto
return brackets (Figure 26, item 2).
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
1
1
1
2
12
1
2
3

851-879 Rev. C 15 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Installation
Cleated Belt and Flat Belt Returns Under
508 mm Wide
Typical cleated return components (Figure 28).
Figure 28
Figure 28
1. Install carriage bolt (Figure 29, item 1) through frame
rail.
Figure 29
Figure 29
2. Install return bracket (Figure 30, item 1).
Figure 30
Figure 30
3. Install return clip (Figure 31, item 1) and loosely secure
with nut (Figure 31, item 2).
Figure 31
Figure 31
4. Repeat on the opposite side of the conveyor.
5. Install each puck (Figure 32, item 1) onto return
bracket (Figure 32, item 2) with stub shaft
(Figure 32, item 3) and spacer (Figure 32, item 4).
Figure 32
Figure 32
1 Spacer
2Puck
3 Stub Shaft
4HexNut
5 Return Clip
6 Return Bracket
7 Carriage Bolt
1
234
5
76
1
1
1
2
4
2
13

Dorner Mfg. Corp. 16 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Installation
6. Rotate return clip (Figure 33, item 1) down against
shaft (Figure 33, item 2) on both sides of conveyor.
Tighten nuts (Figure 33, item 3).
Figure 33
Figure 33
Guide Installation
High Side Guides
1. Remove the top screw (Figure 34, item 1) from the
conveyor side.
Figure 34
Figure 34
2. Assemble the mounting block (Figure 35, item 1) to the
conveyor side with the screw (Figure 35, item 2),
provided.
Figure 35
Figure 35
3. Install guide (Figure 36, item 1) into the slot
(Figure 36, item 2) of the mounting block and tighten
screws (Figure 36, item 3).
Figure 36
Figure 36
4. Install the connecting plate (Figure 37, item 1) over the
studs.
Figure 37
Figure 37
5. Install nuts (Figure 38, item 1) and tighten.
Figure 38
Figure 38
1
2
3
1
1
2
1
2
3
3
1
1

851-879 Rev. C 17 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Installation
Adjustable Guides
1. Remove the top screw (Figure 39, item 1).
Figure 39
Figure 39
2. Install the guide post (Figure 39, item 2) resting on
lower screw (Figure 39, item 3). Reinstall top screw
and tighten.
3. Install guide rail (Figure 40, item 1) into rail clamp.
Tighten fastener to secure (Figure 40, item 2).
Figure 40
Figure 40
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
• 851-884 7350 Series Version 2 Center Drives
1. Attach the motor (Figure 41, item 1) to the gear reducer
(Figure 41, item 2).
Figure 41
Figure 41
NOTE
See pages 66 to 69 for detailed view of guide
assembly.
1
3
2
2
1
1
2

Dorner Mfg. Corp. 18 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Preventive Maintenance and Adjustment
Required Tools
•1/8"hex wrench
• 4 mm hex wrench
• 5 mm hex wrench
• 6 mm hex wrench
• 8 mm hex wrench
• 10 mm hex wrench
• 13 mm hex wrench
Checklist
• Keep critical service parts on hand. Refer to the "Service
Parts" section starting on page 44 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
Conveyor Belt Replacement
1. Remove guides (Figure 42, item 1) when required.
Figure 42
Figure 42
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

851-879 Rev. C 19 Dorner Mfg. Corp.
7350 Series Version 2 Belted Conveyors
Preventive Maintenance and Adjustment
2. Remove belt returns:
a. For flat returns 508 mm wide and wider, refer to
“Flat Belt Returns 508 mm Wide and Wider” on
page 41. Follow steps 1 and 2.
b. For cleated returns and flat returns under 508 mm
wide, refer to “Cleated Belt and Flat Belt Returns
Under 508 mm Wide” on page 42. Follow steps 1
and 2.
3. Place temporary support stands (Figure 43, item 1) at
both ends of the conveyor. Place an additional support
stand (Figure 43, item 2) under the drive motor, if
equipped. See WARNING.
Figure 43
Figure 43
4. Remove fasteners (Figure 44, item 1) securing the
stand brackets from one side of the conveyor and
remove brackets.
Figure 44
Figure 44
5. Rotate idler end (Figure 45, item 1) upward as shown.
Figure 45
Figure 45
6. Remove the belt (Figure 46, item 1) from the conveyor
(Figure 46, item 2).
Figure 46
Figure 46
7. Repeat procedure for the opposite end of the conveyor
to fully remove the belt.
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
1
1
2

Dorner Mfg. Corp. 20 851-879 Rev. C
7350 Series Version 2 Belted Conveyors
Preventive Maintenance and Adjustment
8. Replace the belt. Refer to “Belt Installation” on page 12.
Figure 47
Figure 47
Center Drive Conveyor Belt
Replacement
Belt Removal
1. Remove guides (Figure 48, item 1) when required.
Figure 48
Figure 48
2. Remove belt returns:
a. For flat returns 508 mm wide and wider, refer to
“Flat Belt Returns 508 mm Wide and Wider” on
page 41. Follow steps 1 and 2.
b. For flat returns under 508 mm wide, refer to
“Cleated Belt and Flat Belt Returns Under 508 mm
Wide” on page 42. Follow steps 1 and 2.
3. Remove air supply and remove hose
(Figure 49, item 1) from the center drive.
Figure 49
Figure 49
4. Tip up tail (Figure 50, item 1).
Figure 50
Figure 50
NOTE
To lower idler tail, push idler tail
(Figure 47, item 1) to its maximum up
position, and move locking lever
(Figure 47, item 2) up to disengage lock.
Lower tail slowly.
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
WARNING
Exposed moving parts can cause severe
injury.
REMOVE COMPRESSED AIR SUPPLY before
removing guards or performing maintenance.
2
1
1
1
1