Dorner 3200 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]
851-516 Rev. H
3200 Series Flat Belt LPZ
Conveyors
Installation, Maintenance & Parts Manual

851-516 Rev. H 2 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Table of Contents
Introduction.......................................................................... 3
Warnings - General Safety................................................... 4
Product Description.............................................................. 5
Specifications ....................................................................... 5
Installation............................................................................ 7
Required Tools ................................................................. 7
Recommended Installation Sequence............................... 7
Conveyors Up to 13 ft (3962 mm) ................................... 7
Conveyors Longer Than 13 ft (3962 mm)........................ 7
Mounting Brackets ........................................................... 8
Return Rollers................................................................... 9
4–6” (51–152 mm) Wide Flat Belt Conveyors ............. 9
8–48” (203–1219 mm) Wide Flat Belt Conveyors....... 9
Preventive Maintenance and Adjustment .......................... 10
Required Tools ............................................................... 10
Standard Tools ............................................................ 10
Checklist ......................................................................... 10
Lubrication ..................................................................... 10
Maintaining Conveyor Belt ............................................ 10
Troubleshooting .......................................................... 10
Cleaning ...................................................................... 10
Conveyor Belt Replacement........................................... 10
Conveyor Belt Replacement Sequence....................... 10
Belt Removal for Conveyor Without Stands or
Gearmotor Mounting Package .................................... 11
Belt Removal for Conveyor With Stands and Gearmotor
Mounting Package ...................................................... 12
Belt Installation for Conveyor without Stands or
Gearmotor Mounting Package .................................... 13
Belt Installation for Conveyor with Stands and
Gearmotor Mounting Package .................................... 13
Conveyor Belt Tensioning.............................................. 14
Conveyor Belt Tracking ................................................. 15
V-Guided Belts ........................................................... 15
Non V-Guided Belts ................................................... 15
Conveyor Angle Adjustment.......................................... 16
Pulley Removal .............................................................. 17
A −Idler Pulley Removal ........................................... 17
B −Drive Pulley Removal.......................................... 18
C −Transfer Tail Pulley Removal.............................. 21
D −Knuckle Idler Pulley Removal............................. 22
E −Knuckle Return Roller Removal .......................... 23
Bearing Replacement...................................................... 23
A −Idler Bearing Replacement .................................. 23
B −Drive Bearing Removal and Replacement........... 23
Removal .................................................................. 23
Replacement ............................................................ 24
C −Transfer Tail Bearing Replacement ..................... 24
D −Knuckle Idler Bearing Replacement.................... 24
E −Knuckle Return Roller Bearing Replacement...... 24
Pulley Replacement ........................................................ 24
Idler Pulley.................................................................. 24
Drive Pulley ................................................................ 24
Transfer Tail Pulley .................................................... 24
Knuckle Pulley............................................................ 24
Knuckle Return Roller ................................................ 24
Notes.................................................................................. 25
Service Parts ...................................................................... 26
Drive End Tail Assembly............................................... 26
Transfer Tail Assembly.................................................. 27
Idler End Assembly........................................................ 28
Knuckle Assembly ......................................................... 29
Frame Assembly ............................................................ 30
Bed Plate and Frame Formulas .................................. 31
Conveyor Configurations............................................... 32
Guiding Options (TT) .................................................... 32
Section and Length Determination ................................ 32
Walk Through Frame −Section L1 ............................... 33
Elevating Belt Travel.................................................. 33
Declining Belt Travel ................................................. 33
Walk Through Frame −Section L2 ............................... 34
Elevating Belt Travel.................................................. 34
Declining Belt Travel ................................................. 34
Walk Through Frame −Section L3 ............................... 35
Elevating Belt Travel.................................................. 35
Declining Belt Travel ................................................. 35
Nose Over Frame −Section L2...................................... 36
Elevating Belt Travel.................................................. 36
Declining Belt Travel ................................................. 36
Nose Over Frame −Section L3...................................... 37
Elevating Belt Travel.................................................. 37
Declining Belt Travel ................................................. 37
−13 Adjustable Guiding ................................................. 38
Flat Belt Mounting Brackets.......................................... 39
Connecting Assembly without Stand Mount ................. 39
Flat Belt Connecting Assembly with Stand Mount ....... 40
4” (102 mm) to 6” (152 mm) Flat Belt Return Roller ... 40
8” (203 mm) to 48” (1219 mm) Flat Belt Return Roller 41
Conveyor Belt Part Number Configuration ................... 41
Flat Belt Part Number Configuration ......................... 41
Return Policy ..................................................................... 42

851-516 Rev. H 3 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ 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 3200 series conveyors are covered by Patent
Numbers 5,156,260, 6,871,737B2, 6,910,571B1,
6,971,509B2, and corresponding patents and patent
applications in other countries.
Dorner reserves the right to make changes at any time
without notice or obligation.
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 .
IMPORTANT
Some illustrations may show guards
removed. DO NOT operate equipment
without guards.

Dorner Mfg. Corp. 4 851-516 Rev. H
3200 Series Flat Belt LPZ 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
LPZ Series Conveyors are not reversible.
Reversing creates pinch points which can
cause severe injury.
DO NOT REVERSE LPZ SERIES
CONVEYORS.
A
WARNING
Gearmotors may be HOT.
DO NOT TOUCH Gearmotors.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
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.

851-516 Rev. H 5 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Product Description
Refer to Figure 1 for typical conveyor components. Figure 1
Figure 1
Specifications
Models:
Flat Belt LPZ Series End Drive Conveyor
* See “Ordering and Specifications” Catalog for details.
Conveyor Supports:
Maximum Distances:
J = 24” (610 mm) (Drive End)
K = 12 ft (3658 mm)
L = 36” (914 mm) (Idler End)
Maximum Angle:
M = 0 to 35 degrees
Figure 2
Figure 2
A Conveyor
B Gearmotor Mounting Package
C Gearmotor
D Guiding & Accessories
E Mounting Brackets
F Knuckle
G Support Stand
H Drive End
I Idler/Tension End
A
BC
D
EI
F
H
G
y
Conveyor Width Reference
Conveyor Section Length
Reference
Belt Type*
Output Shaft Position*
Conveyor Profile*
1 = Manual tracking and supports
2 = V-guide tracking and supports
3 = Manual tracking
4 = V−guide tracking
Document Language, M = English
3 E 1 0 M WW LLLL−LLLL−LLLL A PP BB
0 = 3” tails
1 = 1” tails
Conveyor Section Length
Reference
Conveyor Section Length Reference
E = Elevatin
g
KJ
L
M

Dorner Mfg. Corp. 6 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Specifications
Specifications:
Conveyor Width
Reference (WW) 04 05 06 08 10 12 18 24 30 36 48
Conveyor Belt Width 3.75”
(95mm) 5” (127mm) 6” (152mm) 8” (203mm) 10” (254mm) 12” (305mm) 18” (457mm) 24” (609mm) 30” (762mm) 36” (915mm) 48” (1220mm)
Maximum Conveyor
Load* (See NOTE
Below)
42 lb
(19 kg) 50 lb (23 kg) 60 lb (27 kg) 70 lb (32 kg) 80 lb (36 kg) 80 lb (36 kg) 80 lb (36 kg) 400 lb (181kg) 400 lb (181kg) 400 lb (181kg) 400 lb (181kg)
Conveyor Start-up
Torque* 6 in-lb (0.7Nm) 7in-lb(0.8 Nm) 8 in-lb (0.9Nm) 10 in-lb (1.1 Nm) 12 in-lb (1.4Nm) 14 in-lb (1.5Nm) 15 in-lb (1.7Nm) 30 in-lb (3.9Nm) 35 in-lb (3.9Nm) 38 in-lb (4.2Nm) 40 in-lb (4.4Nm)
Conveyor Section
Length Reference
(LLLL)
0200 to 3800 in 0001 increments (2 ft to 38 ft in 0.12” increments)
Total Conveyor
Length 4 ft (1219mm) to 40 ft (12192mm) in 0.12” (0.31mm) increments
Belt Travel 9.7” (246 mm) per revolution of pulley
Maximum Belt
Speed* 421 ft/minute (128 m/minute)
Belt Takeup 1.62” (41 mm) of Belt Takeup on Conveyors Under 20’ Length
3.24” (82 mm) of Belt Takeup on Conveyors Over 20’ Length
NOTE
Maximum conveyor loads based on:
• Non-accumulating product
• Product moving towards gearmotor
• Conveyor being mounted horizontal

851-516 Rev. H 7 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Installation
Figure 3
Figure 3
Required Tools
• Hex-key wrenches:
4 mm, 5 mm
• Level
• Torque wrench
• 8mm hex, open end wrench
Recommended Installation
Sequence
• Install support stands (see accessory instructions)
• Assemble conveyor (if required)
• Attach mounting brackets to conveyor (see page 8 for
instructions)
• Adjust angle (see page 16 for instructions)
• Attach conveyor to stands
• Install return rollers on conveyor (see page 9 for instruc-
tions)
• Mount gearmotor mounting package (see accessory
instructions)
• Attach guides/accessories (see page 32 through page 41 of
“Service Parts” section for details)
Conveyors Up to 13 ft (3962 mm)
No assembly is required. Install mounting brackets and
return rollers. Refer to “Mounting Brackets” on page 8 and
“Return Rollers” on page 9.
Conveyors Longer Than 13 ft
(3962 mm)
Installation Component List:
1. Locate and arrange conveyor sections by section labels
(Figure 4, item P).
Figure 4
Figure 4
2. On tension end of the conveyor, identified by the pinion
locking screw (Figure 5, item T), push in head plate
assembly (V): Loosen the pinion locking screw (T),
adjust the pinion torque screw (Figure 6, item W). On
both sides of conveyor, loosen the two tail clamp bolts
(Figure 5, item U), and push head plate assembly (V)
inward.
Figure 5
Figure 5
A
WARNING
LPZ Series Conveyors are not reversible.
Reversing creates pinch points which can
cause severe injury.
DO NOT REVERSE LPZ SERIES
CONVEYORS.
NOTE
Conveyor MUST be mounted straight, flat and
level within confines of conveyor. Use a level
(Figure 3, item N) for setup.
N
O Conveyor frame
P Section Label
P
P
O
UV
T

Dorner Mfg. Corp. 8 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Installation
Figure 6
Figure 6
3. Roll out conveyor belt (Figure 7, item Q). Loosen (4)
screws (X) on both sides of knuckle (R). Slide frame (P)
into knuckle (R). Tighten screws (X) to 60 in-lb (7 N−
m) on both sides of conveyor.
Figure 7
Figure 7
4. Join additional conveyor sections if necessary and
install connector brackets (Figure 8, item Y) or
connector/mount brackets (YA) and screws (Z) on both
sides as indicated. Tighten screws to 60 in-lb (7 Nm).
Figure 8
Figure 8
5. Slide belt (Figure 9, item Q) over assembled conveyor
sections (AA).
Figure 9
Figure 9
6. Tension conveyor belt, refer to Conveyor Belt
Tensioning on page 14.
7. Install mounting brackets and return rollers. Refer to
page 8
8. Adjust conveyor angle. See “Conveyor Angle
Adjustment” on page 16.
Mounting Brackets
1. Locate brackets. Exploded views shown in Figure 10.
Figure 10
Figure 10
2. Remove screws (Figure 10, item AB & AC), washers
(AD), nuts (AE) and T-bars (AF) from brackets.
3. Insert T-bars (Figure 10, item AF) into conveyor side
slots (Figure 11, item AF). Fasten brackets (Figure
11, item AG) to conveyor with mounting screws (AB).
W
P
R
X
Q
Y
ZYA
Q
AA
AB
AF
AE
AD
AC
Mounting Brackets for Flat Belt Conveyor

851-516 Rev. H 9 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Installation
Figure 11
Figure 11
4. Fasten brackets to support stand with mounting screws
(Figure 11, item AC), washers (AD) and nuts (AE).
5. Tighten screws (Figure 11, item AB & AC) to 60 in-lb
(7 Nm).
Return Rollers
4–6” (51–152 mm) Wide Flat Belt
Conveyors
1. Locate return rollers. Exploded view shown in Figure
12.
Figure 12
Figure 12
2. Remove screws (Figure 12, item AH) and clips (AI)
from roller assembly.
3. Install roller assemblies (Figure 13, item AJ) as shown.
Tighten screws (AH) to 60 in-lb (7 Nm).
Figure 13
Figure 13
8–48” (203–1219 mm) Wide Flat Belt
Conveyors
1. Locate return rollers. Exploded view shown in Figure
14.
Figure 14
Figure 14
2. Remove screws (Figure 14, item AK) and clips (AL)
from roller assembly.
3. Install roller assembly as shown (Figure 15, item AM).
Tighten screws (AK) to 60 in-lb (7 Nm).
Figure 15
Figure 15
AD
AC
AF
AB
AG
AE
AH AI
AH
AI
Return Rollers for Flat Belt Conveyor
AH
AJ
AJ
AK AL
AK
AL
AK
AM

Dorner Mfg. Corp. 10 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Required Tools
Standard Tools
• Hex-key wrenches:
2.5 mm, 4 mm, 5 mm
• 8mm hex, open end wrench
Checklist
• Keep service parts on hand (see “Service Parts” section for
recommendations)
• Keep supply of belt cleaner
• 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. 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
• Release Tension
Remove old conveyor belt:
- Conveyor without Stands or Gearmotor Mounting Pack-
age
- Conveyor with Stands and Gearmotor Mounting Pack-
age
• Install new conveyor belt
• Tension conveyor belt
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.

851-516 Rev. H 11 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Belt Removal for Conveyor Without Stands
or Gearmotor Mounting Package
1. If equipped, remove return rollers and guiding and
accessories from one side of conveyor.
2. On tension end of the conveyor, identified by the pinion
locking screw (Figure 16, item T), push in head plate
assembly (V): Loosen the pinion locking screw (T),
adjust the pinion torque screw (Figure 17, item W). On
both sides of conveyor, loosen the two tail clamp bolts
(Figure 16, item U), and push head plate assembly (V)
inward.
Figure 16
Figure 16
Figure 17
Figure 17
3. Remove screws (Figure 18, item AN) on both sides of
knuckle and remove guard (AO).
Figure 18
Figure 18
4. Push in hex posts (Figure 19, item AP) and remove
roller (AQ).
Figure 19
Figure 19
5. Remove belt (Figure 20, item AR) from conveyor.
Figure 20
Figure 20
UV
T
W
AO
AN
AP
AQ
AR AR

Dorner Mfg. Corp. 12 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Belt Removal for Conveyor With Stands
and Gearmotor Mounting Package
1. Place temporary support stands (Figure 21, item AS) at
both ends of the conveyor. Place an additional support
stand under the drive motor (AT), if equipped. See
WAR N I N G.
Figure 21
Figure 21
2. Remove mounting brackets (Figure 21, item AU) from
one side of conveyor. (Reverse steps 3 & 4 of
“Mounting Brackets” section on page 8).
3. If equipped, remove return rollers, guiding and
accessories from side opposite drive cover.
4. On tension end of the conveyor, identified by the pinion
locking screw (Figure 22, item T), push in head plate
assembly (V): Loosen the pinion locking screw (T),
adjust the pinion torque screw (Figure 23, item W). On
both sides of conveyor, loosen the two tail clamp bolts
(Figure 22, item U), and push head plate assembly (V)
inward.
Figure 22
Figure 22
Figure 23
Figure 23
5. Remove screws (Figure 24, item AN) on both sides of
knuckle and remove guard (AO).
Figure 24
Figure 24
6. Push in hex posts (Figure 25, item AP) and remove
pulley (AQ).
Figure 25
Figure 25
7. Remove belt (Figure 26, item AR) from conveyor.
Figure 26
Figure 26
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
AS
AT AS
AU
AU
U
V
T
W
AO
AN
AP
AQ
AR AR

851-516 Rev. H 13 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Belt Installation for Conveyor without
Stands or Gearmotor Mounting Package
1. Orient belt so splice leading fingers (Figure
27, item AV) point in the direction of belt travel as
identified by the conveyor directional label (AW).
Figure 27
Figure 27
2. Slide belt onto the conveyor frame assembly.
3. Install spring loaded return pulley (Figure 28, item AQ)
into knuckle plate (AX).
Figure 28
Figure 28
4. Install knuckle guard (Figure 29, item AO) with screws
(AN) on both sides of knuckle. Tighten screws to 25 in−
lbs (3 N−m).
Figure 29
Figure 29
5. Tension belt. Refer to “Conveyor Belt Tensioning” on
page 14.
6. If equipped, install wipers, return rollers and guiding.
Belt Installation for Conveyor with Stands
and Gearmotor Mounting Package
1. Ensure temporary support stands (Figure 21, item AS)
are placed at both ends of the conveyor. Place an
additional support stand under the drive motor (AT), if
equipped. See WARNING.
2. Orient belt so splice leading fingers (Figure
27, item AV) point in the direction of belt travel as
identified by the conveyor directional label (AW).
3. Install belt (Figure 30, item AR) on conveyor. Lift
conveyor slightly to avoid pinching belt on temporary
support stands.
Figure 30
Figure 30
4. Re-install conveyor mounting brackets. Refer
“Mounting Brackets” on page 8, steps 3 through 5.
5. Install spring loaded return pulley (Figure 31, item AQ)
into knuckle plate (AX).
Figure 31
Figure 31
AV
AW
AQ AX
AO
AN
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
AR AR
AQ AX

Dorner Mfg. Corp. 14 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
6. Install knuckle guard (Figure 32, item AO) with screws
(AN) on both sides of knuckle. Tighten screws to 25 in−
lbs (3 N−m).
Figure 32
Figure 32
7. Tension belt. Refer to “Conveyor Belt Tensioning” on
page 14.
8. If equipped, re-install return rollers and guiding.
Conveyor Belt Tensioning
1. On tension end of the conveyor, identified by the pinion
locking screw (Figure 33, item T), loosen the two tail
clamp bolts (U), on both sides of conveyor.
Figure 33
Figure 33
2. With 5mm hex wrench, hold pinion torque screw
(Figure 34, item W). Loosen the pinion locking screw
(Figure 33, item T) and turn the pinion torque screw
(W) to extend head plate assembly.
Figure 34
Figure 34
3. Extend head plate assembly until proper tension in the
belt is achieved. If proper tensioning can not be obtained
before the belt life indicator is all black (Figure
35, item BA) the belt must be replaced.
Figure 35
Figure 35
4. After adjusting proper tensioning, tighten the pinion
locking screw (Figure 33, item T) to 69 in−lbs (7.8 N−
m), and tighten tail clamp bolts (Figure 33, item U) on
both sides of conveyor to 146 in-lb (16.5 N−m).
5. If belt tracking is necessary, refer to “Conveyor Belt
Tensioning” on page 14.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
AO
AN
U
V
T
NOTE
On pinion gear, do not exceed a torque of 100
in-lb (11.3 N
− m). Over tensioning the
conveyor belt could cause excessive pulley
bearing load and early failure.
W
BA

851-516 Rev. H 15 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Tracking
V-Guided Belts
V-guides on belts help maintain proper belt tracking. Track
as needed to reduce belt bulge from center of belt (Figure
36). See steps below in “Non V-guided Belts” procedure for
adjusting for any belt bulging. Belt bulge will be minimal
when belt is properly tracked.
Figure 36
Figure 36
Non V-Guided Belts
Non V-guided belt conveyors are equipped with belt tracking
assemblies.
When adjusting belt tracking, always adjust the discharge
end of the conveyor first. To adjust belt tracking:
1. Ensure tensioning racks are extended and touching the
idler pulley headplates: loosen the pinion locking screw
(Figure 33, item T) and rotate the pinion torque screw
(Figure 34, item W) clockwise until contact with the
head plate is made, then tighten the pinion locking
screw (T) to 69 in−lbs (7.8 N−m)
2. On the side of conveyor to be adjusted, loosen two (2)
tail clamp screws (Figure 37, item U).
Figure 37
Figure 37
3. With the conveyor running, use wrench (Figure
38, item BB) to rotate the tracking screw (Figure
39, item BC) in small increments until the belt tracks in
the center of the conveyor.
Figure 38
Figure 38
Figure 39
Figure 39
4. Re-tighten the head plate fastening screws (Figure
40, item U) with a 5 mm hex-key wrench to 100 in-lb
(12 Nm).
Figure 40
Figure 40
U
T
BB
BC
U

Dorner Mfg. Corp. 16 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Conveyor Angle Adjustment
1. Place temporary support (Figure 41, item BD) under
conveyor sections.
Figure 41
Figure 41
2. Loosen screws (Figure 42, item BE) on both sides of
knuckle.
Figure 42
Figure 42
3. Move conveyor to desired angle as indicated by angle
label (Figure 43, item BF).
Figure 43
Figure 43
4. Tighten screws (Figure 42, item BE) on both sides of
knuckle to 100 in−lbs (12 N−m).
A
WARNING
Removing mounting brackets or adjustment
screwswithout support under gearmotor and
conveyor will cause conveyor to tip or drop,
causing severe injury.
PROVIDE SUPPORT UNDERNEATH THE
GEARMOTOR WHEN ADJUSTING THE
CONVEYOR ANGLE
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
BD
BE
BF

851-516 Rev. H 17 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
Pulley Removal
Remove conveyor belt to access pulley(s). See “Conveyor
Belt Replacement” on page 10. Remove the desired pulley
following the corresponding instructions below:
•A−Idler Pulley Removal
•B−Drive Pulley Removal
•C −Transfer Tail Pulley Removal
•D−Knuckle Idler Pulley Removal
•E−Knuckle Return Roller Removal
A −Idler Pulley Removal
1. Temporarily support the idler pulley.
Figure 44
Figure 44
2. On one side of conveyor, loosen the two (2) back
fastening screws (Figure 45, item U) and remove two
(2) front fastening screws (BG).
Figure 45
Figure 45
3. Pull back the outer headplate (Figure 46, item V) and
remove the inner spacer (BH).
Figure 46
Figure 46
4. Slide the idler pulley assembly (Figure 47, item BI) out
of the headplate on the opposite side.
Figure 47
Figure 47
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
U
BG
BH
V
BI

Dorner Mfg. Corp. 18 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
5. Remove the pulley shaft assembly: remove the clip ring
(Figure 48, item BJ) and washer (BK) from one side of
the pulley assembly.
Figure 48
Figure 48
6. Slide the shaft assembly (Figure 49, item BL) out of the
pulley (BI).
Figure 49
Figure 49
B −Drive Pulley Removal
1. Remove the gearmotor mounting package:
• Top and Bottom Mount Drives
• Side Mount Drives
Top and Bottom Mount Drives
a. Use a temporary support (Figure 50, item BM) to
support Gearmotor.
Figure 50
Figure 50
b. Remove four (4) screws (Figure 51, item BN) and
remove cover (BO).
Figure 51
Figure 51
c. Loosen tensioner (Figure 52, item BP).
Figure 52
Figure 52
A
WARNING
Drive shaft keyway may be sharp.
HANDLE WITH CARE.
BJ
BK
BL
BI
BM
BO
BN
BN
BP
BQ

851-516 Rev. H 19 Dorner Mfg. Corp.
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
d. Remove taper-lock screws (Figure 53, item BR) on
the driven pulley (Figure 52, item BQ). Insert one
(1) of taper lock screws (Figure 53, item BR) in
remaining hole (BS). Tighten screw (BR) until
pulley is loose. Remove pulley, taper hub assembly
and timing belt.
Figure 53
Figure 53
e. Remove four (4) M5 mounting screws (Figure
54, item BT) and two (2) M8 mounting screws
(BU).
Figure 54
Figure 54
f. Remove gearmotor and mounting plate assembly
(Figure 54, item BV).
Side Mount Drives
a. Temporarily support Gearmotor
b. Loosen the four (4) lock screw (Figure
55, item BW).
Figure 55
Figure 55
c. Rotate and remove the gear motor and guard
assembly (Figure 56, item BX).
Figure 56
Figure 56
d. Remove the four (4) lock screws (Figure
57, item BW) and the short side drive guard (BY).
Figure 57
Figure 57
BR
BS
BU
BT
BV
BW
BX
BY
BW

Dorner Mfg. Corp. 20 851-516 Rev. H
3200 Series Flat Belt LPZ Conveyors
Preventive Maintenance and Adjustment
2. Temporarily support the drive pulley.
Figure 58
Figure 58
3. Remove four shaft cover screws (Figure 59, item BZ).
Remove the shaft cover (CA).
Figure 59
Figure 59
4. Loosen the bearing collar set screw (Figure
60, item CB) and remove bearing collar (CC). Repeat
on drive shaft side of pulley (Figure 61, item CB & CC).
Figure 60
Figure 60
Figure 61
Figure 61
5. On the drive headplate, remove two (2) screws (Figure
62, item U).
Figure 62
Figure 62
6. Remove the outer headplate assembly (Figure
63, item CD), and inner spacer (BH).
Figure 63
Figure 63
BZ
CA
CB
CC
NOTE
When reassembling, tighten the bearing
collar set screws to 52 in-lbs (6 Nm). Check
after 24 hours of conveyor use.
CB
CC
U
CD
BH