Dorner SmartSlot DustPruf 2300 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]
851-701 Rev. C
2300 Series DustPruf
Center Drive Conveyors
Installation, Maintenance & Parts Manual
Featuring:

Dorner Mfg. Corp. 2 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Table of Contents
Introduction ......................................................................... 2
Warnings −General Safety ................................................. 3
Product Description ............................................................. 4
Specifications ...................................................................... 4
Installation ........................................................................... 6
Required Tools................................................................. 6
Recommended Installation Sequence .............................. 6
Conveyors Up to 8 ft (2438 mm)..................................... 6
Conveyors Longer Than 8 ft (2438 mm) ......................... 6
Mounting Brackets........................................................... 7
Return Rollers .................................................................. 8
8–24¨ (203–610 mm) Wide Flat Belt Conveyors ............ 8
Proper Methods of Attachment to Side Rails .................. 9
Self-Drilling Screws..................................................... 9
Pre-Drill for Standard Screws ...................................... 9
Guiding .......................................................................... 10
Preventive Maintenance and Adjustment.......................... 11
Required Tools............................................................... 11
Standard Tools............................................................ 11
Special Tools .............................................................. 11
Checklist ........................................................................ 11
Lubrication..................................................................... 11
Conveyor Pulley Bearings.......................................... 11
Drive Module Idler Pulley Bearings .......................... 11
Drive Module Drive Pulley Bearings......................... 11
Return Rollers ............................................................ 11
Maintaining Conveyor Belt ........................................... 11
Troubleshooting ......................................................... 11
Cleaning ..................................................................... 11
Conveyor Belt Replacement .......................................... 11
Conveyor Belt Replacement Sequence ...................... 12
Belt Removal for Conveyor Without Stands or
Gearmotor Mounting Package ................................... 12
Belt Removal for Conveyor
With Stands and Gearmotor Mounting Package ........ 12
Gearmotor Mounting Package Removal .................... 14
Drive Module Removal.............................................. 15
Belt Removal from Drive Module ............................. 15
Conveyor Belt Installation ......................................... 16
Conveyor Tension End Adjustment ........................... 17
Conveyors with 1.25¨ (32 mm) Diameter Pulleys...... 18
Conveyors with Nose Bar Idlers ................................ 18
Mid Drive Belt Replacement ......................................... 19
Conveyor Belt Tensioning.............................................. 19
Conveyor Belt Tracking ................................................. 20
V-Guided Belts ........................................................... 20
Non V-Guided Belts ................................................... 20
Pulley Removal .............................................................. 20
Conveyor End Pulley Removal................................... 21
Drive Module Drive Pulley Removal ......................... 21
Drive Module Idler Pulley Removal........................... 21
Conveyor Pulley Bearing Removal and Replacement ... 22
Removal ...................................................................... 22
Replacement................................................................ 22
Conveyor Pulley Installation .......................................... 23
Drive Module Drive Pulley......................................... 23
Drive Module Idler Pulley .......................................... 23
Nose Bar Bearing Replacement ..................................... 23
Mid Drive Spindle Replacement .................................... 24
Service Parts....................................................................... 26
Discharge Tail ................................................................ 26
Idler Tail ......................................................................... 27
2" (51mm) and 12" (305mm) Wide Frame Assembly ... 28
18" (457mm) and 24" (610mm) Wide Frame Assembly 29
2300 Center Drive Module............................................. 30
Nose Bar Idler End ......................................................... 32
Mid Drive Module.......................................................... 33
−04 3” (76 mm) Aluminum Side.................................... 34
−05 1.5” (38 mm) Aluminum Side................................. 35
−07 Low to Side Wiper .................................................. 36
−09 Low to High Side .................................................... 37
−10.5” (13 mm) Extruded Plastic................................... 38
−13 Adjustable Guiding ................................................. 39
−14 Tool-Less Adjustable Guiding ................................ 40
Flared Side Guiding........................................................ 41
Flat Belt Stand Mount Assembly ................................... 42
Flat Belt Stand Mount Assembly
for 2’ (610 mm) Conveyors........................................... 42
Flat Belt Stand Mounts Assembled to the Tail............... 43
Connecting Assembly without Stand Mount.................. 43
Flat Belt Connecting Assembly with Stand Mount........ 44
2” (51 mm) to 6” (152 mm) Flat Belt Return Roller...... 44
8” (203 mm) to 24” (610 mm) Flat Belt Return Roller.. 45
Conveyor Belt Part Number Configuration.................... 45
Return Policy...................................................................... 46
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 instruc-
tions for installation.
Dorner’s 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 2300 series conveyors are covered by Patent
Numbers 5,174,435, 6,298,981, 6,422,382 and
corresponding patents and patent applications in other
countries.
Dorner reserves the right to make changes at any time
without notice or obligation.
IMPORTANT
Some illustrations may show guards
removed. Do NOT operate equipment without
guards.

851-701 Rev. C 3 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Warnings −General Safety
A
WARNING
The safety alert symbol, black triangle with
white exclamation, is used to alert you to
potential personal injury hazards.
A
DANGER
Climbing, sitting, walking or riding on
conveyor will cause severe injury.
KEEP OFF CONVEYORS.
A
DANGER
DO NOT OPERATE CONVEYORS IN AN
EXPLOSIVE ENVIRONMENT.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
A
WARNING
Gearmotors may be HOT.
DO NOT TOUCH Gearmotors.
A
WARNING
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.
A
WARNING
Loosening stand height or angle adjustment
screws may cause conveyor sections to drop
down, causing severe injury.
SUPPORT CONVEYOR SECTIONS PRIOR TO
LOOSENING STAND HEIGHT OR ANGLE
ADJUSTMENT SCREWS.

Dorner Mfg. Corp. 4 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Product Description
Refer to Figure 1 for typical conveyor components. Figure 1
Figure 1
Specifications
2300 Series DustPruf Center Drive
Conveyor
* See Ordering and Specifications Catalog for details.
1Conveyor
2 Drive Module
3 Guiding & Accessories
4 Gearmotor Mounting Package
5 Gearmotor
6 Mounting Brackets
7 Support Stand
8 Variable Speed Controller
9 Fixed End
10 Tension End
6
123
1
7
8
10
5
4
9
25F M BB
PA
DLLLLWW PD
S
T
G
Idler Tail Type
Belt Type
Profile (D side)
Document Language
Motor Shaft Position
2300 Series DustPruf Center Drive Conveyor
-
Profile (A side)
Drive Tail Type
Tracking / Mounting Brackets
Conveyor Length
Conveyor Width

851-701 Rev. C 5 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Specifications
Conveyor Supports
Maximum Distances:
1 = 18¨ (457 mm)
2 = 6 ft (1829 mm)**
** For conveyors longer than 13 ft (3962 mm), install support at joint.
Figure 2
Figure 2
Specifications
* See Ordering and Specifications Catalog for details.
121
Conveyor Width Reference (WW) 02 04 06 08 12 18 24
Conveyor Belt Width 1.75¨
(44mm) 3.75¨ (95mm) 6¨ (152mm) 8¨ (203mm) 12¨ (305mm) 18¨ (457mm) 24¨ (609mm)
Maximum Conveyor Load*
(See NOTE Below) 36 lb (16kg) 50 lb (23kg) 72 lb (33kg) 84 lb (38kg) 96 lb (44kg) 96 lb (44kg) 96 lb (44kg)
Conveyor Startup Torque* 2 in-lb
(0.5Nm) 4 in-lb (0.7Nm) 8 in-lb (0.9Nm) 10 in-lb (1.1Nm) 14 in-lb (1.5Nm) 15 in-lb (1.7Nm) 20 in-lb (2.3Nm)
Belt Travel 4.0¨ (88 mm) per revolution of pulley
Maximum Belt Speed* 264 ft/minute (80.5 m/minute)
Belt Takeup 0.38¨ (10 mm) of stroke = 0.75¨ (19 mm) of belt take-up
Conveyor Length Reference (LLLL) 1.5 ft (457 mm) to 24 ft (7315 mm) in 0.12” (0.31 mm) increments**
NOTE
Maximum conveyor loads based on:
• Non-accumulating product
• Product moving towards gearmotor
• Conveyor being mounted horizontal

Dorner Mfg. Corp. 6 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Installation
Figure 3
Figure 3
Installation Component List
Required Tools
• Hex key wrenches:
4 mm, 5 mm
• Level
• Torque wrench
Recommended Installation
Sequence
• Install stands (see accessory instructions)
• Assemble conveyor (if required)
• Attach mounting brackets to conveyor
• Attach conveyor to stands
• Install return rollers on conveyor (optional)
• Mount gearmotor mounting package (see accessory
instructions)
• Attach guides/accessories (see “Service Parts” section,
page 26)
Conveyors Up to 8 ft (2438 mm)
No assembly is required. Install mounting brackets and
return rollers. Refer to “Mounting Brackets”, page 7 and
“Return Rollers”, page 8.
Conveyors Longer Than 8 ft (2438
mm)
1. Locate and arrange conveyor sections (Figure
4, item 1) by section labels.
Figure 4
Figure 4
2. On tension end of the conveyor, identified with a
label (Figure 5, item 1), push in head plate
assembly (Figure 5, item 2): On both sides of conveyor,
loosen and move cam tracking assemblies (Figure
5, item 3) (if equipped) away from head plates, then
loosen fastening screws (Figure 5, item 4) and push
head plate assembly inward.
Figure 5
Figure 5
3. Roll out conveyor belt and place conveyor frame
sections (Figure 6, item 1) into belt loop.
Figure 6
Figure 6
NOTE
Conveyor MUST be mounted straight, flat and
level within confines of conveyor. Use a level
(Figure 3, item 1) for setup.
Conveyor frame (two sections if longer than 8 ft)
Conveyor brackets
Return rollers (for longer conveyors)
1
11
4
2
3
1
1
1

851-701 Rev. C 7 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Installation
4. Join conveyor sections and install connector brackets
(Figure 7, item 1) or connector/mount brackets (Figure
7, item 2) and screws (Figure 7, item 3) on both sides
as indicated. Tighten screws to 60 in-lb (7 Nm).
Figure 7
Figure 7
5. With a 5 mm hex-key wrench, rotate pinion gear
(Figure 8, item 1) to tension the conveyor belt. Tighten
fastening screws (Figure 8, item 2) on both sides of
conveyor to 60 in-lb (7 Nm). For proper tensioning,
refer to “Conveyor Tension End Adjustment” on
page 17.
Figure 8
Figure 8
6. Install mounting brackets and return rollers. Refer to
“Mounting Brackets” on page 7 and “Return Rollers” on
page 8.
7. If equipped with cam tracking assemblies (Figure
5, item 3), adjust belt tracking. Refer to “Conveyor Belt
Tracking” on page 20.
Mounting Brackets
1. Locate brackets. Exploded views shown in Figure 9.
Figure 9
Figure 9
2. Remove screws (Figure 9, item 1), washers (Figure
9, item 2), nuts (Figure 9, item 3) a from brackets.
3. Locate and retain self-drilling screws (Figure
9, item 4).
4. Measure an equal distance (Figure 10, item 1) from end
of head plate (on both sides of conveyor) and mark
placement of mounting brackets (Figure 10, item 2).
Fasten mounting brackets to conveyor with mounting
screws (Figure 10, item 3) following proper methods of
attachment instructions on page 10.
1
32
2
1
IMPORTANT
For proper methods of attachment to
conveyor side rail see page 9.
NOTE
For maximum support distance see page 5.
NOTE
Mounting brackets for flat belt conveyors
shown.
4
3
2
1

Dorner Mfg. Corp. 8 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Installation
Figure 10
Figure 10
5. Fasten brackets (Figure 13, item 1) to support stand
(Figure 13, item 2) with mounting screws (Figure
13, item 3), washers (Figure 13, item 4) and nuts
(Figure 13, item 5).
Figure 11
Figure 11
6. Fasten brackets (Figure 12, item 2) to conveyor with
mounting screws (Figure 12, item 3).
Figure 12
Figure 12
7. Fasten brackets to support stand with mounting screws
(Figure 12, item 4), washers (Figure 12, item 5) and
nuts (Figure 12, item 6).
8. Tighten screws (Figure 12, item 3 & 4) to 60 in-lb (7
Nm).
Return Rollers
2–6¨ (51–152 mm) Wide Flat Belt Conveyors
1. Locate return rollers. Exploded views shown in Figure
13.
Figure 13
Figure 13
2. Remove screws (Figure 13, item 1) and clips (Figure
13, item 1) from roller assembly.
3. Install roller assemblies (Figure 14, item 1) as shown.
Tighten screws (Figure 14, item 2) to 60 in-lb (7 Nm).
Figure 14
Figure 14
8–24¨ (203–610 mm) Wide Flat Belt
Conveyors
1. Locate return rollers. Exploded view shown in Figure
15.
Figure 15
Figure 15
2. Remove screws (Figure 15, item 1) and clips (Figure
15, item 2) from roller assembly.
2
3
1
5
4
23
1
13
2
6
5
4
2
1
2
1
2
1
1
12
1
2

851-701 Rev. C 9 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Installation
3. Install roller assembly as shown (Figure 16, item 1).
Tighten screws (Figure 16, item 2) to 60 in-lb (7 Nm).
Figure 16
Figure 16
Proper Methods of Attachment to
Side Rails
The 2300 DustPruf side rail is designed for self-drilling
attachment of brackets and accessories. This can be done in
two methods: self-drilling screws or pre-drill for standard
screws.
Self-Drilling Screws
All Dorner accessories are provided with 1/4-20 self-drilling
screws.
1. Locate and hold bracket (Figure 17, item 1) to side rail.
Hole should line up with notch (Figure 17, item 2) in
side rail.
Figure 17
Figure 17
2. With a cordless drill or equivalent install self-drilling
screws (Figure 17, item 3). Use high speed setting to
drill through side wall. Once the tap portion is started
switch drill power to a lower speed. Do not fully tighten
with drill.
3. Hand tighten the screws to secure (Figure 18).
Recommended torque is 150 in.lbs (17 Nm).
Figure 18
Figure 18
Pre-Drill for Standard Screws
The DustPruf side rail will also accept standard screws. M6-
1.0 and 1/4-20 are acceptable. Strength grade 8 is
recommended.
1. Locate and hold bracket (Figure 19, item 1) to side rail.
Hole should line up with notch (Figure 19, item 2) in
side rail. Mark the hole locations with a center punch
(Figure 19, item 3) and remove the bracket.
Figure 19
Figure 19
A
WARNING
Installing self-drilling screws into the
dustpruf side rail requires substantial force.
Failure to properly support the conveyor
while installing self-drilling screws may
cause the operator or conveyor to slip,
causing severe injury.
SUPPORT CONVEYOR FRAMES WHILE
INSTALLING SELF-DRILLING SCREWS.
2
1
1
23
21
3

Dorner Mfg. Corp. 10 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Installation
2. Drill the hole locations (Figure 20, item 1) with a 3/16"
drill bit (Figure 20, item 2).
Figure 20
Figure 20
3. Position and hold bracket (Figure 21, item 1) to side
rail. With a standard M6-1.0 or 1/4-20 screw, install
screws (Figure 21, item 2) with cordless drill or
equivalent. Do not fully tighten with drill.
Figure 21
Figure 21
4. Hand tighten the screws to secure (Figure 22).
Recommended torque is 150 in.lbs (17 Nm).
Figure 22
Figure 22
Guiding
Due to the DustPruf construction ALL guiding must be
located and installed by the end user. Take care in locating
retaining clips prior to final installation.
1. Lay out retaining clip (Figure 23, item 1) locations. The
end clips should be no greater than 12" (Figure
23, item 2) from end of the conveyor.
Figure 23
Figure 23
2. Hold guide (Figure 23, item 3) and retaining clips
(Figure 23, item 4) to conveyor side rail. Install self-
drilling screws (Figure 23, item 5) following the
“Proper Methods of Attachment to Side Rails” on
page 9 procedure.
1
2
1
2
A
WARNING
Installing self-drilling screws into the
DustPruf side rail requires substantial force.
Failure to properly support the conveyor
while installing self-drilling screws may
cause the operator or conveyor to slip,
causing severe injury.
SUPPORT CONVEYOR FRAMES WHILE
INSTALLING SELF-DRILLING SCREWS.
NOTE
Profile -09, Low to High Side shown below.
For other guide profile layouts see pages
page 34 thru page 41.
3
4
5
2
1

851-701 Rev. C 11 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Required Tools
Standard Tools
• Hex key wrenches:
• Small flat blade screwdriver
• Adjustable wrench
• Arbor press
Special Tools
• 807−1716 Bearing Puller Tool (or equivalent)
• 450293 Bearing Installation Tool (Bearing Pusher)
• 456063 Bearing Removal Tool
Checklist
• Keep service parts on hand. See “Service Parts” for rec-
ommendations.
• Keep supply of belt cleaner.
• Clean entire conveyor and knurled pulley while disassem-
bled.
• Replace worn or damaged parts.
Lubrication
Conveyor Pulley Bearings
No lubrication is required. Replace pulley if worn.
Drive Module Idler Pulley Bearings
No lubrication is required. Replace pulley if worn.
Drive Module Drive Pulley Bearings
No lubrication is required. Replace bearings if worn.
Return Rollers
No lubrication is required. Replace bearings if worn.
Maintaining Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
• Stalling or slipping
Surface cuts and wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Improperly installed bottom wiper
• Accumulated dirt in wiper
• Foreign material inside the conveyor
• Improperly positioned accessories
• Bolt-on guiding is pinching belt
Stalling or slipping indicates:
• Excessive load on belt
• Conveyor belt or drive timing belt are not properly ten-
sioned
• Worn knurl or impacted dirt on drive pulley
• Intermittent jamming or drive train problems
Cleaning
Use Dorner Belt Cleaner. Mild soap and water may also be
used. Do not soak the belt.
For /05 woven polyester and /06 black anti-static belts, use a
bristled brush to improve cleaning.
Conveyor Belt Replacement
−2 mm −4 mm −2.5 mm
−5 mm −3 mm −6 mm
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
IMPORTANT
Do not use belt cleaners that contain alcohol,
acetone, Methyl Ethyl Ketone (MEK) or other
harsh chemicals.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.

Dorner Mfg. Corp. 12 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Replacement Sequence
• Remove old conveyor belt:
Conveyor without Stands or Gearmotor Mounting Package
Conveyor with Stands and Gearmotor Mounting Package
• Drive Module Removal
• Conveyor Belt Removal from Drive Module
• Install New Conveyor Belt
• Tension Conveyor Belt
Belt Removal for Conveyor Without Stands
or Gearmotor Mounting Package
1. If equipped, remove bottom wipers (Figure 24, item 1):
Remove fastening screws (Figure 24, item 2) then
remove wiper.
Figure 24
Figure 24
2. If equipped, remove return rollers and guiding and
accessories from one side of conveyor.
3. Loosen corner screws (Figure 25, item 1), on each side
of the drive module (Figure 25, item 2).
Figure 25
Figure 25
4. Remove tension door screws (Figure 25, item 3) on
each side of the drive module.
5. Using finger grip holes (Figure 25, item 4), open the
tension door (Figure 25, item 5) to release conveyor
belt tension.
6. On tension end of the conveyor, identified with a
label (Figure 26, item 1), push in head plate
assembly (Figure 26, item 2): On both sides of
conveyor, loosen and move cam tracking assemblies
(Figure 26, item 3) (if equipped) away from head
plates, then loosen fastening screws (Figure 26, item 4)
and push head plate assembly inward.
Figure 26
Figure 26
7. Remove conveyor belt from conveyor ends. See NOTE.
8. Proceed to “Drive Module Removal” on page 15 and
“Belt Removal from Drive Module” on page 15.
Belt Removal for Conveyor With Stands
and Gearmotor Mounting Package
1. If equipped, remove bottom wipers (Figure 27, item 1):
Remove fastening screws (Figure 27, item 2) then
remove wiper.
Figure 27
Figure 27
NOTE
See Table of Contents for beginning page
numbers of following procedures.
22
1
2
1
5
3
4
NOTE
On conveyors 4-ft (1219 mm) and shorter by
8¨ (203 mm) and wider, it is be necessary to
remove the drive module at the sametime the
conveyor belt is removed. See “Drive Module
Removal” on page 15.
4
2
3
1
22
1

851-701 Rev. C 13 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
2. If equipped, remove return rollers and guiding and
accessories from one side of conveyor.
3. Remove Gearmotor Mounting Package. See
“Gearmotor Mounting Package Removal” on page 14.
4. Loosen corner screws (Figure 28, item 1), on each side
of the drive module (Figure 28, item 2).
Figure 28
Figure 28
5. Remove tension door screws (Figure 28, item 3) on
each side of the drive module.
6. Using finger grip holes (Figure 28, item 4), open the
tension door (Figure 28, item 5) to release conveyor
belt tension.
7. On tension end of the conveyor, identified with a
label (Figure 29, item 1), push in head plate
assembly (Figure 29, item 2): On both sides of
conveyor, loosen and move cam tracking assemblies
(Figure 29, item 3) (if equipped) away from head
plates, then loosen fastening screws (Figure 29, item 4)
and push head plate assembly inward.
Figure 29
Figure 29
8. Place temporary support stands (Figure 30, item 1) at
both ends of the conveyor.
Figure 30
Figure 30
9. Remove mounting brackets (Figure 30, item 2) from
one side of conveyor. (Reverse steps 3 & 4 of
“Mounting Brackets” on page 7.)
10. Remove conveyor belt from conveyor ends. See NOTE.
11. Proceed to “Drive Module Removal” on page 15 and
“Belt Removal from Drive Module” on page 15.
NOTE
With vertically mounted gearmotors, tension
door screws (Figure 28, item 3) are removed
from one side when the gearmotor mounting
package is removed.
2
1
5
3
4
NOTE
On conveyors 4-ft (1219 mm) and shorter by
8¨ (203 mm) and wider, it is be necessary to
remove the drive module at the sametime the
conveyor belt is removed. See “Drive Module
Removal” on page 15.
4
2
3
1
1
2

Dorner Mfg. Corp. 14 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Gearmotor Mounting Package Removal
1. Remove cover screws (Figure 31, item 1) and remove
cover (Figure 31, item 2).
Figure 31
Figure 31
2. Loosen belt tensioner (Figure 32, item 1) then remove
timing belt (Figure 32, item 2).
Figure 32
Figure 32
Figure 33
Figure 33
3. Remove three mounting screws (Figure 34, item 1) and
remove gearmotor.
Figure 34
Figure 34
NOTE
Figure 31 & Figure 32 show vertically
mounted gearmotor. Horizontally mounted
gearmotor is similar.
NOTE
If the timing belt does not slide over the pulley
flange, loosen the driven pulley set screws
(Figure 33, item 1) and remove the pulley
(Figure 33, item 2) with the belt (Figure
33, item 3).
2
1
1
2
1
1
2
3
1

851-701 Rev. C 15 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Drive Module Removal
1. Place temporary support (Figure 35, item 1) underneath
the drive module.
Figure 35
Figure 35
2. Loosen clamp screws (Figure 35, item 2) on each
corner of the module. Remove the module.
Belt Removal from Drive Module
1. Remove drive plate screws (Figure 36, item 1).
Remove the tension drive plate (Figure 36, item 2).
Figure 36
Figure 36
2. Remove drive pulley (Figure 37, item 1).
Figure 37
Figure 37
Figure 38
Figure 38
3. Remove grooved idler pulley:
• For 2” (44 mm), 3” (70 mm) or 4” (95 mm) wide con-
veyor, detach E-ring clip (Figure 37, item 2). Remove
pulley shaft (Figure 37, item 3) and remove pulley (Fig-
ure 37, item 4).
• For 5” (127 mm) or wider conveyor, depress both sides of
spring-loaded shaft and remove pulley (Figure
38, item 5).
4. Remove the conveyor belt.
A
WARNING
Removing drive module without support
under the module may lead to personel
injury.
PROVIDE SUPPORT UNDERNEATH THE
DRIVE MODULE BEFORE REMOVING THE
MODULE.
NOTE
If desired, mark position of drive module on
conveyor before removal.
1
2
1
2
1
4
3
2
51

Dorner Mfg. Corp. 16 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Installation
Figure 39
Figure 39
Figure 40
Figure 40
1. Orient the conveyor belt so that the splice leading
fingers (Figure 41, item 1) point in the direction of belt
travel, indicated by the label (Figure 40, item 1).
Figure 41
Figure 41
2. Place loop of belt (Figure 42, item 1) into the drive
module between top idler pulleys (Figure 42, item 2).
Figure 42
Figure 42
3. Place grooved idler pulley (Figure 42, item 3) into the
belt loop and install it in the drive module. Refer to
“Belt Removal from Drive Module” on page 15 and
reverse step 3.
4. Place drive pulley (Figure 42, item 4) into the belt loop
and install it in the drive module. Refer to “Belt
Removal from Drive Module” on page 15 and reverse
steps 1 and 2. Tighten screws (Figure 36, item 1) to 80
in-lb (9 Nm).
1
IMPORTANT
On a center drive conveyors, belt travel
direction is identified by an arrow decal on the
side of the conveyor (Figure 40, item 1) &
(Figure 39, item 1).
NOTE
It is necessary to replace the drive module at
the same time the conveyor belt is replaced
on conveyors 4-foot (1219 mm) and shorter
by 8¨ (203 mm) and wider.
1
1
3
2
4
1

851-701 Rev. C 17 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
5. Install the drive module onto the conveyor and attach
clamps (Figure 35, item 2) in each corner. Tighten
screws to 80 in-lb (9 Nm).
6. Route and install the belt over both ends of the
conveyor.
7. On conveyors with stands, re-install conveyor mounting
brackets. Refer to “Mounting Brackets” on page 7, steps
3 through 5.
8. Adjust the conveyor tensioning end. See “Conveyor
Tension End Adjustment” on page 17.
9. Carefully close the drive module tension door (Figure
43, item 1). See WARNING.
Figure 43
Figure 43
10. Tighten corner screws (Figure 44, item 1) on each side
of the drive module to 80 in-lb (9 Nm).
Figure 44
Figure 44
11. If equipped, re-install the gearmotor mounting package.
Reverse steps of “Gearmotor Mounting Package
Removal” on page 14.
12. Re-install tension door screws (Figure 44, item 2) on
each side of the module. Tighten screws to 80 in-lb (9
Nm).
13. If equipped, re-install bottom wipers (Figure
45, item 1): Install wiper (Figure 45, item 2) then
install screws.
Figure 45
Figure 45
14. If equipped, replace guiding.
Conveyor Tension End Adjustment
A
WARNING
Tension door closes quickly, may cause
injury.
KEEP FINGERS CLEAR OF TENSION DOOR.
1
2
1
NOTE
With vertically mounted gearmotors, tension
door screws (Figure 44, item 2) are installed
on one side when the gearmotor mounting
package is installed.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
11
2

Dorner Mfg. Corp. 18 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Conveyors with 1.25¨ (32 mm) Diameter
Pulleys
1. On tension end of the conveyor, identified with a
label (Figure 46, item 1), adjust head plate
assembly (Figure 46, item 2): On both sides of
conveyor, loosen fastening screws (Figure 46, item 3)
and rotate pinion gear (Figure 46, item 4) to adjust head
plate assembly.
Figure 46
Figure 46
2. Adjust head plate assembly so end of conveyor frame
aligns with first tensioning mark (Figure 47, item 1).
Tighten fastening screws (Figure 46, item 2) on both
sides of conveyor to 60 in-lb (7 Nm).
Figure 47
Figure 47
3. If equipped with cam tracking assemblies (Figure
46, item 1), reposition against head plates and adjust
belt tracking. Refer to “Conveyor Belt Tracking”,
page 20.
Conveyors with Nose Bar Idlers
1. On tension end of the conveyor, identified with a
label (Figure 48, item 1), adjust head plate
assembly (Figure 48, item 2): On both sides of
conveyor, loosen fastening screws (Figure 48, item 3)
and rotate pinion gear (Figure 48, item 4) to adjust head
plate assembly.
Figure 48
Figure 48
2. Adjust head plate assembly so the edge of the axle
support plate (Figure 49, item 1) is separated from the
end of the conveyor (Figure 49, item 2) by 1.125¨ (29
mm). Tighten fastening screws (Figure 48, item 1) on
both sides of conveyor to 60 in-lb (7 Nm).
Figure 49
Figure 49
3. If equipped with cam tracking assemblies (Figure
48, item 3) position against head plates and adjust belt
tracking. Refer to “Conveyor Belt Tracking” on
page 20.
3
2
5
1
4
1
214
5
3
12
1.125” (29 mm)

851-701 Rev. C 19 Dorner Mfg. Corp.
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Mid Drive Belt Replacement
1. Remove belt tension. See “Conveyor Belt Replacement”
on page 11 for belt releasing belt tension.
2. Remove two M6x25 socket head screws (Figure
50, item 1) from bottom of mid drive assembly (Figure
50, item 2).
Figure 50
Figure 50
3. Lower and remove mid drive module (Figure
51, item 1) from belt (Figure 51, item 2).
Figure 51
Figure 51
4. Remove belt (Figure 52, item 1) from conveyor frame.
Figure 52
Figure 52
Conveyor Belt Tensioning
The conveyor is equipped with an automatic tensioning
cylinder. No tensioning adjustment is required.
For a new belt, the tension plate (Figure 53, item 1) will be
in position indicated below left. When the tension plate
extends to position indicated below right, the conveyor belt
must be replaced.
Figure 53
Figure 53
A
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards or
performing maintenance. Exposed moving
parts can cause serious injury.
1
2
1
2
1
11

Dorner Mfg. Corp. 20 851-701 Rev. C
2300 Series DustPruf Center Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Tracking
V-Guided Belts
V-guided belts do not require tracking adjustment.
Non V-Guided Belts
Non V-guided belt conveyors are equipped with belt tracking
cam assemblies (Figure 54, item 1) for belt tracking
adjustment.
Figure 54
Figure 54
When adjusting belt tracking, always adjust the discharge
end of the conveyor first. To adjust belt tracking:
1. Ensure head plate fastening screws (Figure 54, item 2)
on both sides of conveyor are tightened.
2. On both sides of conveyor, loosen two (2) cam fastening
screws (Figure 54, item 3). Adjust cams (Figure
54, item 4) until indicator slots (Figure 54, item 5) are
horizontal and facing end of conveyor. Then slide cam
assemblies against head plates (Figure 54, item 6) and
re-tighten cam fastening screws (Figure 54, item 3) to
60 in-lb (7 Nm).
3. On the side toward which the belt is tracking, loosen
head plate fastening screws (Figure 54, item 2).
4. With the conveyor running, use a 5 mm hex-key wrench
to rotate the tracking cam (Figure 54, item 4) in small
increments until the belt tracks in the center of the
conveyor. Then while holding the cam in position, re-
tighten the head plate fastening screws (Figure
54, item 2) with a 4 mm hex-key wrench to 60 in-lb (7
Nm).
Pulley Removal
Remove the conveyor belt to access the pulley(s). Perform
the indicated steps of one of the following procedures:
• “Belt Removal for Conveyor Without Stands or Gearmo-
tor Mounting Package” on page 12, steps 1 through 7.
• “Belt Removal for Conveyor With Stands and Gearmotor
Mounting Package” on page 12, steps 1 through 10.
Remove desired pulley following procedures:
• Conveyor End Pulley Removal
• Module Drive Pulley Removal
• Module Idler Pulley Removal
5
6
43
21
BELT TRAVEL
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.