Dorner Allegro 18" 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]
851-824 Rev. A
Allegro 18"Integral Conveyor
Maintenance & Parts Manual

Dorner Mfg. Corp. 2 851-824 Rev. A
Allegro 18" Integral Conveyor
Table of Contents
Table of Contents ................................................................ 2
Introduction ......................................................................... 2
Warnings −General Safety ................................................. 3
Product Description ............................................................. 4
Preventive Maintenance and Adjustment............................ 5
Conveyor Belt Replacement ............................................ 5
Conveyor Belt Tensioning/Tracking ............................... 5
Idler Pulley Removal ....................................................... 6
Drive Pulley Removal...................................................... 7
Bearing Removal & Replacement ................................... 8
Removal ....................................................................... 8
Replacement.................................................................. 8
Gearmotor Mounting Package Removal .......................... 9
Timing Belt Tensioning.................................................. 11
Timing Belt Replacement............................................... 11
Drive or Driven Timing Pulley Replacement................. 11
Gearmotor Replacement................................................. 12
Notes .................................................................................. 13
Service Parts....................................................................... 14
Drive Package and Gearmotor ....................................... 14
Frame Assembly............................................................. 16
Return Policy...................................................................... 18
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.
IMPORTANT
Some illustrations may show guards
removed. DO NOT operate equipment
without guards.

851-824 Rev. A 3 Dorner Mfg. Corp.
Allegro 18" Integral Conveyor
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. 4 851-824 Rev. A
Allegro 18" Integral Conveyor
Product Description
Refer to Figure 1 for typical components.
Figure 1
Figure 1
1DriveEnd
2 Gearmotor Mounting Package
3 Idler/Tension End
4Conveyor
5 Mounting Brackets
1
4
5
2
3

851-824 Rev. A 5 Dorner Mfg. Corp.
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
Conveyor Belt Replacement
1. Unlock spring plunger (Figure 2, item 1) by rotating
90 degrees. Pull spring plunger out and tip up the idler
tail (Figure 2, item 2).
Figure 2
Figure 2
2. Remove the belt (Figure 2, item 3) from the idler tail
and drive tail.
3. Install new belt.
4. Tip down idler tail (Figure 2, item 2) to the run
position. Pull spring plunger (Figure 2, item 1) out to
lock the idler tail into final position. Rotate the spring
plunger 90 degrees to lock.
Conveyor Belt Tensioning/Tracking
1. Confirm that the belt is on, the idler tail is in the down
position, and that the spring plunger has locked down
the idler tail.
2. Using an M10 wrench, loosen the M6 screw (Figure
3, item 1) on both sides of the conveyor to allow for
tensioning and tracking of the belt.
Figure 3
Figure 3
3. Using an M8 wrench, loosen (back out) the M5 screw
(Figure 4, item 1) on both sides of the conveyor to
tension the belt.
Figure 4
Figure 4
4. Tighten the M6 screws (Figure 4, item 2) on both sides
of the conveyor.
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
1
2
3
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
NOTE
During first installation, make sure that the M5
screws are backed out equally on each side.
1
12

Dorner Mfg. Corp. 6 851-824 Rev. A
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
5. Turn on the conveyor, set at a slow speed, and check belt
tracking.
6. If necessary, loosen the M6 screw (Figure 4, item 2)
and back out the M5 screw (Figure 4, item 1) as needed
to track the belt.
Idler Pulley Removal
1. Remove conveyor belt. See “Conveyor Belt
Replacement” on page 5.
2. On one side of the conveyor, using a wrench to hold the
hex bar (Figure 5, item 1) underneath, remove the
shoulder screw (Figure 5, item 2) and spacer (Figure
5, item 3).
Figure 5
Figure 5
3. On the same side of the conveyor, using a wrench to
hold the hex bar (Figure 6, item 1) underneath, remove
the M6 screw (Figure 6, item 2).
Figure 6
Figure 6
4. Remove the head plate (Figure 7, item 1) from the
conveyor frame, holding spindle in place.
Figure 7
Figure 7
5. Slide the spindle out.
6. To replace the idler tail pulley, reverse the removal
procedure.
7. Install belt on the conveyor, then tension the belt. See
“Conveyor Belt Tensioning/Tracking” on page 5.
NOTE
Tracking adjustment should be minimal as the
belt is v-guided on the edge of the frame.
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
1
2
3
NOTE
To prevent damage to the head plates, be
sure to remove them slowly because they are
not attached to pulley.
1
2
1

851-824 Rev. A 7 Dorner Mfg. Corp.
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
Drive Pulley Removal
1. Remove conveyor belt. See “Conveyor Belt
Replacement” on page 5.
2. On drive side of the conveyor, loosen four screws
(Figure 8, item 1) and remove timing belt covers
(Figure 8, item 2).
Figure 8
Figure 8
3. Remove tension on timing belt (Figure 9, item 1) by
loosening tensioner screw (Figure 9, item 2).
Figure 9
Figure 9
4. Loosen set screw (Figure 9, item 3) on driven pulley
(Figure 9, item 4). Remove driven pulley and timing
belt.
5. On the opposite drive side of the conveyor, using a
wrench to hold the hex bars (Figure 10, item 1)
underneath, remove the two M6 screws (Figure
10, item 2).
Figure 10
Figure 10
6. Remove the head plate (Figure 11, item 1) from the
conveyor frame, holding spindle in place.
Figure 11
Figure 11
7. Slide the spindle out.
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
1
1
2
1
2
34
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
2
1

Dorner Mfg. Corp. 8 851-824 Rev. A
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
8. To replace the drive tail pulley, reverse the removal
procedure.
9. Install belt on the conveyor, then tension the belt. See
“Conveyor Belt Tensioning/Tracking” on page 5.
Bearing Removal & Replacement
Removal
1. Place bearing removal tool part #456063 (Figure
12, item 1) below bearing (Figure 12, item 2) with lip
(Figure 12, item 3) located in gap (Figure 12, item 4)
between bearing and spindle hub (Figure 12, item 5) as
shown.
Figure 12
Figure 12
2. Using puller part #807−1716 (Figure 13, item 1),
remove and discard bearing.
Figure 13
Figure 13
Replacement
1. Inspect the head plates bearing seating surface (Figure
14, item 1). If they are worn or damaged, replace. See
“Service Parts” on page 14.
Figure 14
Figure 14
2. Inspect spindle (Figure 15, item 1). Replace if worn.
3. Slide bearing (Figure 15, item 2) onto spindle.
Figure 15
Figure 15
4. Slide sleeve (Figure 16, item 1) of tool (part #456085)
over bearing.
Figure 16
Figure 16
IMPORTANT
Do not use any removed bearings. Replace
them.
21
54
3
1
1
2
1
1

851-824 Rev. A 9 Dorner Mfg. Corp.
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
5. Place open end of pusher (Figure 17, item 1) into
sleeve.
Figure 17
Figure 17
6. Using an arbor press or similar device, press bearing
onto pulley shaft (Figure 18).
Figure 18
Figure 18
7. Repeat steps 1 through 5 for each bearing.
Gearmotor Mounting Package
Removal
1. Remove conveyor belt. See “Conveyor Belt
Replacement” on page 5.
2. Loosen four screws (Figure 19, item 1) and remove
timing belt covers (Figure 19, item 2).
Figure 19
Figure 19
3. Remove tension on timing belt (Figure 20, item 1) by
loosening tensioner screw (Figure 20, item 2).
Figure 20
Figure 20
4. Loosen set screw (Figure 20, item 3) on driven pulley
(Figure 20, item 4). Remove driven pulley and timing
belt.
A
WARNING
Exposed moving parts can cause severe
injury. LOCK OUT POWER before removing
guards or performing maintenance.
1
A
WARNING
Drive shaft keyway may be sharp. HANDLE
WITH CARE.
1
1
2
1
2
34

Dorner Mfg. Corp. 10 851-824 Rev. A
Allegro 18" Integral Conveyor
Preventive Maintenance and Adjustment
5. Loosen set screw on drive pulley (Figure 21, item 1).
Remove pulley.
Figure 21
Figure 21
6. Using a wrench to hold the hex bars underneath, remove
two M6 screws (Figure 22, item 1). Remove whole
gearmotor mounting package (Figure 22, item 2) and
spacer (Figure 22, item 3).
Figure 22
Figure 22
7. Remove four screws (Figure 23, item 1) and drive
mounting plate (Figure 23, item 2).
Figure 23
Figure 23
8. Remove four screws (Figure 24, item 1) from
gearmotor and mount plates (Figure 24, item 2).
Figure 24
Figure 24
9. Remove eight screws (Figure 25, item 1). Remove
gearmotor (Figure 25, item 2) and mount plates
(Figure 25, item 3) from motor mount plate (Figure
25, item 4).
Figure 25
Figure 25
1
2
1
3
1
1
2
1
2
2
1
1
3
2
1
3
4