Dorner Ready-To-Run Mini Conveyors Maintenance and service guide

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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]
851-712 Rev. C
Ready-To-Run Mini Conveyors
Installation, Maintenance & Parts Manual

Dorner Mfg. Corp. 2 851-712 Rev. C
Ready-To-Run Mini Conveyors
Table of Contents
Introduction ......................................................................... 3
Warnings −General Safety ................................................. 4
Product Description ............................................................. 5
Specifications ...................................................................... 5
Models: ............................................................................ 5
Conveyor Assembly Model Number: .......................... 5
Fixed Speed Control: 9 ft/min .................................. 5
Fixed Speed Control: 15 ft/min ................................ 5
Fixed Speed Control: 21 ft/min ................................ 5
Fixed Speed Control: 35 ft/min ................................ 6
Variable Speed Control: 3 to 15 ft/min..................... 6
Variable Speed Control: 6 to 35 ft/min..................... 6
Variable Speed Control: 10 to 58 ft/min................... 6
Adjustable Height Stand Models: ................................ 6
Support Stand Cross Brace Models:............................. 6
Surface Mounting Bracket Models: ............................. 6
Conveyor Supports: ......................................................... 7
Maximum Distances:.................................................... 7
Specifications: .............................................................. 7
Installation ........................................................................... 8
Required Tools................................................................. 8
Recommended Installation Sequence .............................. 8
Support Stand Mounting Brackets................................... 8
Surface Mount Brackets................................................... 9
Adjustable Cross Brace.................................................. 10
Required Tools ........................................................... 10
Stand Attachment........................................................... 10
Variable Speed Controller ............................................. 11
Variable Speed Controller
Mounting to Conveyor ............................................... 11
Variable Speed Controller
Mounting to Stand Leg............................................... 12
Preventive Maintenance and Adjustment.......................... 13
Required Tools............................................................... 13
Standard Tools............................................................ 13
Special Tools .............................................................. 13
Checklist ........................................................................ 13
Lubrication..................................................................... 13
Maintaining Conveyor Belt ........................................... 13
Troubleshooting ......................................................... 13
Cleaning ..................................................................... 13
Conveyor Belt Replacement .......................................... 13
Conveyor Belt Replacement Sequence ...................... 13
Belt Removal for Conveyor With
Stands and Gearmotor Mounting Package ................. 14
Belt Installation for Conveyor with Stands
and Gearmotor Mounting Package............................. 14
Conveyor Belt Tensioning ............................................. 15
Conveyors with 1.25¨ (32 mm) Diameter Pulleys...... 15
Conveyor Belt Tracking................................................. 16
V-Guided Belts........................................................... 16
Pulley Removal.............................................................. 16
A −Idler Pulley Removal........................................... 16
B −Drive Pulley Removal ......................................... 17
Bearing Removal & Replacement.................................. 17
Removal ...................................................................... 17
Replacement................................................................ 18
Drive Pulley and Idler Pulley Installation ...................... 18
Drive Pulley Installation ............................................. 18
Idler Pulley Installation............................................... 19
Stand Height Adjustment ............................................... 19
Height Adjustment for Fixed
and Adjustable Height Stands..................................... 19
Required Tools ........................................................ 19
Gearmotor Mounting Package Removal ........................ 20
Timing Belt Tensioning.................................................. 21
Timing Belt Replacement............................................... 21
Drive or Driven Timing Pulley Replacement................. 21
Gearmotor Replacement................................................. 22
Notes .................................................................................. 23
Service Parts....................................................................... 24
2” (51 mm) Wide Conveyor........................................... 24
3” (76 mm) to 6” (152 mm) Wide Conveyor ................. 26
8” (203 mm) to 12” (305 mm) Wide Conveyor ............. 28
−04 3” (76 mm) Aluminum Side.................................... 30
−05 1.5” (38mm) Aluminum Side.................................. 31
−07 Low to Side Wiper .................................................. 32
−09 Low to High Side .................................................... 33
−13 Adjustable Guiding ................................................. 34
−14 Tool-Less Adjustable Guiding ................................ 35
Flared Side Guiding........................................................ 36
Flat Belt Stand Mount Assembly ................................... 37
2” (51mm) to 6” (152mm)
Flat Belt Return Roller ................................................... 38
8” (203mm) to 24” (610mm)
Flat Belt Return Roller ................................................... 38
Gearmotor Mounting Package........................................ 39
Conveyor Belt Part Number Configuration.................... 40
Notes .................................................................................. 41
Return Policy...................................................................... 42

851-712 Rev. C 3 Dorner Mfg. Corp.
Ready-To-Run Mini 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 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 2200 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.

Dorner Mfg. Corp. 4 851-712 Rev. C
Ready-To-Run Mini 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.

851-712 Rev. C 5 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Product Description
Refer to Figure 1 for typical components. Figure 1
Figure 1
Specifications
Models:
Conveyor Assembly Model Number:
Fixed Speed Control: 9 ft/min
Fixed Speed Control: 15 ft/min
Fixed Speed Control: 21 ft/min
1DriveEnd
2 Gearmotor Mounting Package
3 Guiding & Accessories
4 Idler/Tension End
5Conveyor
6 Mounting Brackets
7 Variable Speed Controller
8 Support Stand
9 Caster Wheels
2
9
1
6
7
34
8
5
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009199 75009203 75009207 75009211 75009215 75009219
5 foot 75009223 75009227 75009231 75009235 75009239 75009243
8 foot 75009247 75009251 75009255 75009259 75009263 75009267
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009200 75009204 75009208 75009212 75009216 75009220
5 foot 75009224 75009228 75009232 75009236 75009240 75009244
8 foot 75009248 75009252 75009256 75009260 75009264 75009268
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009201 75009205 75009209 75009213 75009217 75009221
5 foot 75009225 75009229 75009233 75009237 75009241 75009245
8 foot 75009249 75009253 75009257 75009261 75009265 75009269

Dorner Mfg. Corp. 6 851-712 Rev. C
Ready-To-Run Mini Conveyors
Specifications
Fixed Speed Control: 35 ft/min
Variable Speed Control: 3 to 15 ft/min
Variable Speed Control: 6 to 35 ft/min
Variable Speed Control: 10 to 58 ft/min
Adjustable Height Stand Models:
(Note: The stand bracket and conveyor add 5” to Top of Belt
Height.)
Support Stand Cross Brace Models:
Surface Mounting Bracket Models:
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009202 75009206 75009210 75009214 75009218 75009222
5 foot 75009226 75009230 75009234 75009238 75009242 75009246
8 foot 75009250 75009254 75009258 75009262 75009266 75009270
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009271 75009274 75009277 75009280 75009283 75009286
5 foot 75009289 75009292 75009295 75009298 75009301 75009304
8 foot 75009307 75009310 75009313 75009316 75009319 75009322
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009272 75009275 75009278 75009281 75009284 75009287
5 foot 75009290 75009293 75009296 75009299 75009302 75009305
8 foot 75009308 75009311 75009314 75009317 75009320 75009323
Length 1.75” 3” 4” 6” 8” 12”
3 foot 75009273 75009276 75009279 75009282 75009285 75009288
5 foot 75009291 75009294 75009297 75009300 75009303 75009306
8 foot 75009309 75009312 75009315 75009318 75009321 75009324
Height
24 to 36 inches high 75009327
30 to 48 inches high 75009328
Height
For 3’ Long Conveyor 75009329
For 5’ Long Conveyor 75009330
For 8’ Long Conveyor 75009331
Height
2” to 3” Top of Belt Height 75009325
3” to 5” Top of Belt Height 75009326

851-712 Rev. C 7 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Specifications
Conveyor Supports:
Maximum Distances:
1 = 18" (457 mm)
2 = 6 ft (1829 mm)
3 = 18" (457 mm)
Figure 2
Figure 2
Specifications:
Table 1: Conveyor Speed / Maximum Load Capacity
Fixed Speed Gearmotors
Variable Speed Motors
Table 2: Gearmotor Specifications
Table 3: Variable Speed Controller Specification
23
1
Load Capacity (lbs) Belt Width (in)
Speed(ft/min)1.75346812
9 303542607080
15 30 35 42 60 70 80
21 30 35 42 57 52 43
35 30 35 34 29 24 14
Load Capacity (lbs) Belt Width (in)
Speed(ft/min)1.75346812
3 to 15 30 35 42 60 70 80
6 to 35 30 35 42 52 47 37
10 to 58 30 35 27 22 17 8
NOTE
Maximum conveyor loads based on:
• Non-accumulating product
• Product moving towards gearmotor
• Conveyor being mounted horizontal
Part Number Output Hp Input Volts Input Phase Input Hz Amps FLA Ratio RPM Torque in-lb
62M060PL411FN 0.03 115V 1 60 0.46 60 25 38
62M036PL411FN 0.03 115V 1 60 0.46 36 42 26
62M025PL411FN 0.03 115V 1 60 0.46 25 60 18
62M015PL411FN 0.03 115V 1 60 0.46 15 100 12
62M036PL423EN 0.03 230V 3 10 to 60 0.22 36 42 37
62M015PL423EN 0.03 230V 3 10 to 60 0.22 15 100 16.8
62M009PL423EN 0.03 230V 3 10 to 60 0.22 9 167 10.6
Part Number Input Volts Input Phase Input Hz Output Volts Output Phase Output Hz Max Amps
22MV122BR 115V 1 60 230 3 10 to 60 2.4

Dorner Mfg. Corp. 8 851-712 Rev. C
Ready-To-Run Mini Conveyors
Installation
Figure 3
Figure 3
Installation Component List
Figure 4
Figure 4
Required Tools
• Hex-key wrenches:
4 mm, 5 mm
• Level
• Torque wrench
Recommended Installation
Sequence
• Attach mounting brackets to conveyor (see “Support Stand
Mounting Brackets” on page 8 for stand mounting brack-
ets and see “Surface Mount Brackets” on page 9 for sur-
face mounting brackets).
• Attach conveyor to stands (see “Stand Attachment” on
page 10).
• Install stand cross brace
• Install variable speed controller
Support Stand Mounting Brackets
1. Locate brackets. Exploded view shown in Figure 5.
Figure 5
Figure 5
2. Remove screws (Figure 5, item 1 & 2), washers
(Figure 5, item 3), nuts (Figure 5, item 4) and T-bars
(Figure 5, item 5) from brackets.
3. Insert T-bars (Figure 5, item 5) into conveyor side slots
(Figure 6, item 1). Fasten brackets (Figure 6, item 2)
to conveyor with mounting screws (Figure 6, item 3).
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.
1 Conveyor with Gearmotor Mounting Package
2 Variable Speed Controller (Optional)
3 Support Stand (Optional)
4 Support Stand Mounting Brackets (Optional)
5 Adjustable Stand Cross Bracket (Optional)
6 Surface Mount Brackets (Optional)
1
35
1
24
6
1
5
4
3
2
13
2
6
45

851-712 Rev. C 9 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Installation
4. Fasten brackets to support stand with mounting screws
(Figure 6, item 4), washers (Figure 6, item 5) and nuts
(Figure 6, item 6).
5. Tighten screws (Figure 6, item 3 & 4) to 60 in-lb (7
Nm).
6. See “Stand Height Adjustment” on page 19 for stand
height adjustment.
Surface Mount Brackets
1. Locate brackets. Exploded view shown in Figure 8.
Illustration References
Figure 7
Figure 7
2. Install M6 T-bar (Figure 8, item 1) in T-slot (Figure
8, item 2).
Figure 8
Figure 8
3. Set spacer (Figure 9, item 1) on conveyor lip (Figure
9, item 2).
Figure 9
Figure 9
4. Mount slotted bracket (Figure 10, item 1) to conveyor
frame with M6 screws (Figure 10, item 2).
Figure 10
Figure 10
5. Adjust height as required. Tighten M6 screws to 80 in-lb
(9 Nm).
6. Repeat for opposite side of conveyor.
NOTE
Mounting brackets for flat belt conveyors
shown.
1 Slotted Bracket (2x)
2 M6 T-Bar (2x)
3 Spacer Plate (2x)
4 M6 Screw (4x)
5 M6 Washer (4x)
45
1
3
254
2
1
12
2
1

Dorner Mfg. Corp. 10 851-712 Rev. C
Ready-To-Run Mini Conveyors
Installation
Adjustable Cross Brace
Required Tools
• 5 mm hex key wrench
• Torque wrench
Illustration References:
Figure 11
Figure 11
Stand Attachment
1. Loosen screw (Figure 12, item 1) of adjustable bar
(Figure 12, item 2).
Figure 12
Figure 12
2. Install T-bar (Figure 13, item 1) in inner T-slot of stand
leg (Figure 13, item 2).
Figure 13
Figure 13
3. Loosely attach adjustable bar (Figure 14, item 1) or
(Figure 15, item 1) to aluminum stand T-slot as
required.
• Attach outer tube end with screw (Figure 14, item 2).
Figure 14
Figure 14
• Attach inner channel end with screw (Figure 15, item 2).
Figure 15
Figure 15
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
1 M6 T-Bar (2x)
2 Adjustable Bar
3 M6 x 40 mm Socket Head Screw (2x)
1
3
2
2
1
1
2
21
2
1

851-712 Rev. C 11 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Installation
4. Tighten three screws (Figure 16, item 1), to 80 in-lb (9
Nm).
Figure 16
Figure 16
Variable Speed Controller
Variable Speed Controller Mounting to
Conveyor
Figure 17
Typical Variable Speed Mounting on Conveyor
Figure 17
Illustration References:
Figure 18
Shipping Package
Figure 18
1. Assemble mounting clips (Figure 19, item 1) with
screws (Figure 19, item 2) to the top of the controller.
Figure 19
Figure 19
A
WARNING
Failure to secure three screws (Figure
16, item 1), may cause conveyor sections to
drop down, causing severe injury.
TIGHTEN SCREWS AFTER ADJUSTMENT.
1
Item Part Number Description
1 920406M Socket Head Screw, M4-0.70 x 6 mm
2 202658 Mounting Clip (x2)
3 920612M Socket Head Screw,
M6-1.00 x 12 mm (x2)
4 639971M T-Bar, Single Drop-In (x2)
5 827-101 Controller
827-100 Reversing Controller
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
3
5
1
2
4
1
2

Dorner Mfg. Corp. 12 851-712 Rev. C
Ready-To-Run Mini Conveyors
Installation
2. Install T-bars (Figure 20, item 1) into T-slots of
conveyor.
Figure 20
Figure 20
3. Attach controller to conveyor with two screws (Figure
21, item 1).
Figure 21
Figure 21
4. Slide controller to its desired mounting location along
conveyor and tighten both screws.
Variable Speed Controller Mounting to
Stand Leg
1. Assemble mounting clips (Figure 22, item 1) with
screws (Figure 22, item 2) to the side of the controller.
Figure 22
Figure 22
2. Install T-bars (Figure 23, item 1) into T-slots of stand
leg.
Figure 23
Figure 23
3. Attach controller to stands with two screws (Figure
23, item 2).
4. Slide controller to its desired mounting location along
conveyor and tighten both screws.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
1
1
1
2
1
2

851-712 Rev. C 13 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
Required Tools
Standard Tools
• Hex-key wrenches:
2.5 mm, 4 mm, 5 mm
• Arbor press
Special Tools
• 807−1716 Bearing Puller Tool (or equivalent)
• 450292 Bearing Installation Tool (Pusher Sleeve)
• 450293 Bearing Installation Tool (Bearing Pusher)
• 456063 Bearing Removal Tool
Checklist
• Keep service parts on hand (see “Service Parts” section for
recommendations)
• Keep supply of belt cleaner (part # 625619)
• Clean entire conveyor and knurled pulley while disassem-
bled
• Replace worn or damaged parts
Lubrication
No lubrication is required. Replace bearings if worn.
Maintaining Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
• Stalling or slipping
• Damage to V-guide
Surface cuts and wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Improperly installed bottom wipers (if installed)
• Accumulated dirt in wipers (if installed)
• 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
Damage to V-guide indicates:
• Twisted or damaged conveyor frame
• Dirt impacted on pulleys
• Excessive or improper side loading
Cleaning
Use Dorner Belt Cleaner (part # 625619). 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
Conveyor Belt Replacement Sequence
Remove old conveyor belt:
- Conveyor with Stands and Gearmotor Mounting
Package
• Install new conveyor belt
• Tension conveyor belt
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. 14 851-712 Rev. C
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
Belt Removal for Conveyor With Stands
and Gearmotor Mounting Package
1. Place temporary support stands (Figure 24, item 1) at
both ends of the conveyor. Place an additional support
stand (Figure 24, item 2) under the drive motor (Figure
24, item 3), if equipped. See WARNING.
Figure 24
Figure 24
2. Remove mounting brackets (Figure 24, item 4) from
one side of conveyor. (Reverse steps in “Support Stand
Mounting Brackets” on page 8 or “Surface Mount
Brackets” on page 9.) If equipped with heavy load drive
package, remove brackets from side opposite drive
(Figure 25, item 1).
Figure 25
Figure 25
3. If equipped, remove return rollers, guiding (Figure
25, item 2) and accessories from side opposite drive
(Figure 25, item 1).
4. 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
5. Remove belt (Figure 27, item 1) from conveyor.
Figure 27
Figure 27
Belt Installation for Conveyor with Stands
and Gearmotor Mounting Package
A
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
11
2
4
4
3
2
1
A
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
2
43
1
1
1

851-712 Rev. C 15 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
1. Ensure temporary support stands (Figure 24, item 1)
are placed at both ends of the conveyor. Place an
additional support stand under the drive motor (Figure
24, item 3), if equipped. See WARNING.
2. Orient belt so splice leading fingers (Figure 28, item 1)
point in the direction of belt travel as identified by the
conveyor directional label (Figure 28, item 2).
Figure 28
Figure 28
3. Install belt (Figure 29, item 1) on conveyor. Lift
conveyor slightly to avoid pinching belt on temporary
support stands.
Figure 29
Figure 29
4. Re-install conveyor mounting brackets. Refer to
“Support Stand Mounting Brackets” on page 8 or
“Surface Mount Brackets” on page 9.
5. Tension belt. Refer to “Conveyor Belt Tensioning” on
page 15.
6. If equipped, re-install return rollers and guiding.
Conveyor Belt Tensioning
Conveyors with 1.25¨ (32 mm) Diameter
Pulleys
1. On tension end of the conveyor, identified with a
label (Figure 30, item 1), adjust head plate
assembly (Figure 30, item 2): On both sides of
conveyor, loosen fastening screws (Figure 30, item 3)
and rotate pinion gear (Figure 30, item 4) to adjust head
plate assembly.
Figure 30
Figure 30
2. Adjust head plate assembly so end of conveyor frame
aligns with or between the head plate tensioning marks
(Figure 31, item 1 & 2). Replace belt if proper
tensioning can not be obtained while aligning the end of
the conveyor frame with or between the tensioning
marks. See NOTE.
Figure 31
Figure 31
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
1
2
11
NOTE
On pinion gear, do not exceed a torque of 25
in-lb (2.8 Nm) for 2 – 12¨ (44 – 305 mm) wide
conveyors and 50 in-lb (4.5 Nm) for an 18 –
24¨ (457 – 610 mm) wide conveyor. Over
tensioning the conveyor belt could cause
excessive pulley bearing load and early
failure.
35
214
12

Dorner Mfg. Corp. 16 851-712 Rev. C
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
3. After adjusting proper tensioning, tighten fastening
screws (Figure 32, item 1) on both sides of conveyor to
60 in-lb (7 Nm).
Figure 32
Figure 32
4. If equipped with cam tracking assemblies (Figure
32, item 2), position against head plates and adjust belt
tracking. Refer to “Conveyor Belt Tracking” on
page 16.
Conveyor Belt Tracking
V-Guided Belts
V-guided belts do not require tracking adjustment.
Pulley Removal
Leaving the conveyor belt in place, remove the desired
pulley following the corresponding instructions below:
•A−Idler Pulley Removal
•B−Drive Pulley Removal
A −Idler Pulley Removal
1. On one side of the conveyor, loosen two (2) head plate
fastening screws (Figure 33, item 1) and remove them.
Figure 33
Figure 33
2. Remove the head plate (Figure 34, item 1) from the
conveyor frame.
Figure 34
Figure 34
3. Pulley will slide out of opposite head plate and drop into
slack of belt (Figure 35).
Figure 35
Figure 35
4. Slide spindle out of the belt loop.
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
NOTE
To prevent damage to the head plates and
pulley, be sure to remove them slowly
because they are not attached to pulley.
12
1
1

851-712 Rev. C 17 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
B −Drive Pulley Removal
1. Remove gearmotor mounting package. See “Gearmotor
Mounting Package Removal” on page 20.
2. On one side of the conveyor, loosen two (2) head plate
fastening screws (Figure 36, item 1) and remove.
Figure 36
Figure 36
3. Remove the head plate (Figure 37, item 1) from the
conveyor frame.
Figure 37
Figure 37
4. Drive pulley will slide out of opposite head and drop
into slack of belt.
5. Slide the drive pulley out of the belt loop.
Bearing Removal & Replacement
Removal
1. Place bearing removal tool part #456063 (Figure
38, item 1) below bearing (Figure 38, item 2) with lip
(Figure 38, item 3) located in gap (Figure 38, item 4)
between bearing and spindle hub (Figure 38, item 5) as
shown.
Figure 38
Figure 38
2. Using puller part #807−1716 (Figure 39, item 1),
remove and discard bearing.
Figure 39
Figure 39
A
WARNING
Drive shaft keyway may be sharp. HANDLE
WITH CARE.
NOTE
To prevent damage to the head plates, be
sure to remove them slowly because they are
not attached to pulley.
1
1
IMPORTANT
Do not use any removed bearings. Replace
them.
21
54
3
1

Dorner Mfg. Corp. 18 851-712 Rev. C
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
Replacement
1. Inspect the head plates bearing seating surface (Figure
40, item 1). If they are worn or damaged, replace. See
“Service Parts” on page 24.
Figure 40
Figure 40
2. Inspect spindle (Figure 41, item 1). Replace if worn.
3. Slide bearing (Figure 41, item 2) onto spindle.
Figure 41
Figure 41
4. Slide sleeve (Figure 42, item 1) of tool over bearing.
Figure 42
Figure 42
5. Place open end of pusher (Figure 43, item 1) into
sleeve.
Figure 43
Figure 43
6. Using an arbor press or similar device, press bearing
onto pulley shaft (Figure 44).
Figure 44
Figure 44
7. Repeat steps 1 through 5 for each bearing.
Drive Pulley and Idler Pulley
Installation
Drive Pulley Installation
1. With opposite head plate installed, position the drive
pulley through the loop of the belt, into the opposite
head plate.
2. Place the head plate (Figure 45, item 1) and attach the
head plate to the conveyor frame with the two (2)
screws removed. Tighten screws 60 in-lb (7 Nm).
Figure 45
Figure 45
1
2
1
1
1
1

851-712 Rev. C 19 Dorner Mfg. Corp.
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
Idler Pulley Installation
1. With opposite head plate installed, position the idler
pulley through the loop of the belt, into the opposite
head plate.
2. Place the head plate (Figure 46, item 1) and attach the
head plate to the conveyor frame with the two (2)
screws removed and hand tighten.
Figure 46
Figure 46
Stand Height Adjustment
Height Adjustment for Fixed and
Adjustable Height Stands
Required Tools
• 6 mm Hex Key Wrench
1. Using a support (Figure 47, item 1), raise conveyor and
stand off the floor.
Figure 47
Figure 47
2. Loosen button screws (Figure 47, item 2).
3. Raise or lower stand leg (Figure 47, item 3) to the
required height. Level stand from side to side using a
level (Figure 47, item 4).
4. Tighten button screws (Figure 47, item 2) to 150 in–lb
(17 N–m).
5. Repeat steps 2 through 4 on opposite stand leg.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
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.
1
A
WARNING
Failure to secure screws (Figure 47, item 2)
may cause conveyor sections to drop down
causing severe injury.
TIGHTEN SCREWS (Figure 47, item 2) AFTER
ADJUSTMENT.
1
42
3

Dorner Mfg. Corp. 20 851-712 Rev. C
Ready-To-Run Mini Conveyors
Preventive Maintenance and Adjustment
Gearmotor Mounting Package
Removal
1. Loosen two (2) screws (Figure 48, item 1).
Figure 48
Figure 48
2. Loosen timing belt tensioner screw (Figure 48, item 2).
3. Remove four (4) screws (Figure 49, item 1). Remove
gearmotor (Figure 49, item 2) and cover (Figure
49, item 3).
Figure 49
Figure 49
4. Remove timing belt (Figure 50, item 1).
Figure 50
Figure 50
5. Loosen set screws (Figure 51, item 1) and remove
driven pulley (Figure 51, item 2).
Figure 51
Figure 51
6. Replace drive or driven pulley. See “Drive or Driven
Timing Pulley Replacement” on page 21. Tighten
screws to 80 in-lb (9 Nm).
7. Complete steps 5-9 of “Timing Belt Replacement” on
page 21. See “Drive or Driven Timing Pulley
Replacement” on page 21.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
1
2
1
3
2
1
2
1