Dorner 3200 Series User manual

851-518 Rev.A
Installation, Maintenance
& Parts Manual
Flat Belt Center Drive LPZ Conveyors
Table of Contents
Warnings – General Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RequiredTools 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Installation Sequence 6. . . . . . . . . . . . . . . . .
Conveyors Up to 13 ft (3962 mm) 6. . . . . . . . . . . . . . . . . . .
Conveyors Longer Than 13 ft (3962 mm) 6. . . . . . . . . . . . .
Mounting Brackets 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return Rollers 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4– 6¨ (102 – 152 mm) Wide Flat Belt Conveyors 8. . . . .
8 – 48¨ (203 – 1219 mm) Wide Flat Belt Conveyors 8. . .
Gearmotor Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventative Maintenance & Adjustment 10. . . . . . . . . . . . . . .
Required Tools 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Tools 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checklist 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintaining Conveyor Belt 10. . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conveyor Belt Replacement 11. . . . . . . . . . . . . . . . . . . . . . .
Conveyor Belt Replacement Sequence 11. . . . . . . . . . . . .
Belt Removal for Conveyor Without Stands 11. . . . . . . . . .
Belt Removal for Conveyor With Stands 13. . . . . . . . . . . . .
Belt Installation for Conveyor Without Stands 14. . . . . . . . .
Belt Installation for Conveyor With Stands 14. . . . . . . . . . .
Conveyor Belt Tensioning 15. . . . . . . . . . . . . . . . . . . . . . . . .
Conveyor Belt Tracking 15. . . . . . . . . . . . . . . . . . . . . . . . . .
V – Guided Belts 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non V–Guided Belts 15. . . . . . . . . . . . . . . . . . . . . . . . . . .
Conveyor Angle Adjustment 17. . . . . . . . . . . . . . . . . . . . . . .
End and Knuckle Pulley Removal 18. . . . . . . . . . . . . . . . . .
A – Idler Pulley Removal 18. . . . . . . . . . . . . . . . . . . . . . .
B – Transfer Tail Pulley Removal 19. . . . . . . . . . . . . . . .
C – Knuckle Idler Pulley Removal 20. . . . . . . . . . . . . . . .
D – Knuckle Return Roller Removal 21. . . . . . . . . . . . . .
Center Drive Pulleys Removal 22. . . . . . . . . . . . . . . . . . . . .
A – Tensioner Pulley Removal 22. . . . . . . . . . . . . . . . . . .
B – Idler Pulley Removal 23. . . . . . . . . . . . . . . . . . . . . . .
C – Drive Pulley Removal 25. . . . . . . . . . . . . . . . . . . . . .
Bearing Replacement 26. . . . . . . . . . . . . . . . . . . . . . . . . . . .
A – Idler Bearing Replacement 27. . . . . . . . . . . . . . . . . .
B – Drive Bearing Removal and Replacement 27. . . . . . .
C – Transfer Tail Pulley 28. . . . . . . . . . . . . . . . . . . . . . . .
D – Knuckle Idler Pulley 29. . . . . . . . . . . . . . . . . . . . . . .
E – Knuckle Return Roller 29. . . . . . . . . . . . . . . . . . . . . .
Pulley Replacement 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idler Pulley 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Pulley 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Tail Pulley 29. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive End Tail Assembly 30. . . . . . . . . . . . . . . . . . . . . . . . .
Center Drive 90 Deg Industrial Gearmotors 32. . . . . . . . . . .
Transfer Tail Assembly 33. . . . . . . . . . . . . . . . . . . . . . . . . . .
Idler End Tail Assembly 34. . . . . . . . . . . . . . . . . . . . . . . . . .
Knuckle Assembly 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frame Assembly 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conveyor Configurations 38. . . . . . . . . . . . . . . . . . . . . . . . .
Guiding Options 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section and Length Determination 38. . . . . . . . . . . . . . . . . .
Walk Through Frame – Section L1 39. . . . . . . . . . . . . . . . .
Walk Through Frame – Section L2 40. . . . . . . . . . . . . . . . .
Walk Through Frame – Section L3 41. . . . . . . . . . . . . . . . .
Noseover Frame – Section L2 42. . . . . . . . . . . . . . . . . . . . . .
Noseover Frame – Section L3 43. . . . . . . . . . . . . . . . . . . . . .
–13 Adjustable Guiding 44. . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Belt Mounting Bracket 45. . . . . . . . . . . . . . . . . . . . . . . .
Connecting Assembly without Stand Mount 46. . . . . . . . . .
Flat Belt Connecting Assembly without
Stand Mount 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4” (102mm) to 6” (152mm) Flat Belt Return Roller 46. . . . .
8” (203mm) to 48” (1219mm) Flat Belt Return Roller 47. . .
Conveyor Belt Part Number Configuration 48. . . . . . . . . . .
Return Policy 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 2Dorner Mfg. Corp.
The safety alert symbol, black triangle with white
exclamation, is used to alert you to potential
personal injury hazards.
Ç
Ç
Ç
Climbing, sitting, walking or
riding on conveyor will
cause severe injury.
KEEP OFF CONVEYORS.
DANGER
Ç
Ç
DANGER
DO NOT OPERATE
CONVEYORS IN AN
EXPLOSIVE ENVIRONMENT.
Ç
LPZ Series Conveyors are
not reversible. Reversing
creates pinch points which
can cause severe injury.
DO NOT REVERSE LPZ SE-
RIES CONVEYORS.
WARNING
Ç
Gearmotors may be HOT.
DO NOT TOUCH Gearmotors.
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
Ç
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.
Ç
Ç
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.
Introduction
IMPORTANT: Some illustrations may show
guards removed. DO NOT operate equipment with-
out guards.
Upon receipt of shipment:
DCompare shipment with packing slip. Contact factory
regarding discrepancies.
DInspect packages for shipping damage. Contact carrier
regarding damage.
DAccessories may be shipped loose. See accessory in-
structions for installation.
Dorner’s Limited Warranty applies.
Dorner 3200 series conveyors are covered by Patent
Numbers 5,156,260, and corresponding patents and
patent applications in other countries.
Dorner reserves the right to make changes at any time
without notice or obligation.
Warnings – General Safety

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 3851-518 Rev. A
Refer to Figure 1 for typical conveyor components.
A Conveyor
B Center Drive Module
C Gearmotor
D Guiding & Accessories
E Mounting Brackets
F Knuckle
G Support Stand
H Idler/Tension End
Typical Components
Figure 1
A
B
C
D
EH
F
G
H
Specifications
Models:
Flat Belt LPZ Series Center Drive Conveyor
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 5 M WW LLLL–LLLL–LLLLA PP BB
5 = Center Drive 3”tails
6 = Center Drive 1”tail at infeed
7 = Center Drive 1”tail at discharge
8 = Center Drive 1”tails
Conveyor Section Length
Reference
Conveyor Section Length Reference
E = Elevating
D = Declining
* See Ordering and Specifications Catalog for details.
Conveyor Supports:
Maximum Distances:
I = 24¨(610 mm) (Drive End)
J = 12 ft (3658 mm)
K = 36¨(914 mm) (Idler End)
Maximum Angle:
L = 0 to 35 degrees
J
I
Figure 2
K
L
Product Description

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 4Dorner Mfg. Corp.
Specifications:
Conveyor Width
Reference (WW) 04 06 08 10 12 18 24 30 36 48
Conveyor Belt Width 3.75¨
(95mm) 6¨ (152mm) 8¨ (203mm) 10¨ (254mm) 12¨ (305mm) 18¨ (457mm) 24¨ (609mm) 30¨ (762mm) 36¨ (915mm) 48¨
(1220mm)
Conveyor Length Ref-
erence (LLLL) 0300 to 9900 in 0001 increments
Conveyor Length 4 ft (1219mm) to 99 ft (30175mm) in 0.12”(0.31mm) increments
Belt Travel 18.8¨(478 mm) per revolution of pulley
Maximum Belt Speed* 600 ft/minute (183 m/minute)
Belt Takeup 16”(407 mm) of Belt Takeup
* See Ordering and Specifications Catalog for details.
NOTE: Maximum conveyor loads based on:
DNon-accumulating product
DProduct moving towards gearmotor
DConveyor being mounted horizontal
Table 1: Belt Speeds for Variable Speed 905VDC Gearmotors
Standard Load Gearmotors Belt Speed
Part Number RPM In-lb N-m Ft/min M/min
32M100HHD9DEN 25 630 71 4.0–40.0 1.2–12.2
32M080HHD9DEN 31 575 65 5.0–50.0 1.5–15.2
32M060HHD9DEN 42 469 53 6.7–66.7 2.0–20.3
(vp) = voltage and phase
11 = 115 V, 1-phase
23 = 208 – 230/460 V, 3-phase
SpecificationsSpecifications

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 5851-518 Rev. A
Table 2: Belt Speeds for Fixed Speed 905Gearmotors
Standard Load Gearmotors Belt Speed
Part Number RPM In-lb N-m Ft/min M/min
32M100HHvpfN 17 913 103 27.6 8.4
32M080HHvpfN 22 833 94 34.5 10.5
32M060HHvpfN 29 680 77 46.0 14.0
32M050HHvpfN 35 1206 136 55.2 16.8
32M040HHvpfN 43 1023 116 69.0 21.0
32M030HHvpfN 58 1217 138 92.0 28.0
32M025HHvpfN 69 1069 121 110.4 33.7
32M020HHvpfN 86 1184 134 138.0 42.1
32M015HHvpfN 115 910 103 184.0 56.1
32M010HHvpfN 173 636 72 276.0 84.1
32M008HHvpfN 230 482 54 368.0 112.2
Table 3: Belt Speeds for Variable Speed 905VFD Gearmotors
Standard Load Gearmotors Belt Speed
Part Number RPM In-lb N-m Ft/min M/min
32M100HHvpfN 17 913 103 2.8–27.6 0.8–8.4
32M080HHvpfN 22 833 94 3.5–34.5 1.1–10.5
32M060HHvpfN 29 680 77 4.6–46.0 1.4–14.0
32M050HHvpfN 35 1206 136 5.5–55.2 1.7–16.8
32M040HHvpfN 43 1023 116 6.9–69.0 2.1–21.0
32M030HHvpfN 58 1217 138 9.2–92.0 2.8–28.0
32M025HHvpfN 69 1069 121 11.0–110.4 3.4–33.7
32M020HHvpfN 86 1184 134 13.8–138.0 4.2–42.1
32M015HHvpfN 115 910 103 18.4–184.0 5.6–56.1
32M010HHvpfN 173 636 72 27.6–276.0 8.4–84.1
32M008HHvpfN 230 482 54 36.8–368.0 11.2–112.2
Table 4: Belt Speeds for Variable Speed 905VFD Integrated Motor Control Gearmotors
Standard Load Gearmotors Belt Speed
Part Number RPM In-lb N-m Ft/min M/min
32M100HH411EC 17 913 103 4.6–36.7 1.4–11.2
32M060HH411EC 29 680 77 7.7–61.2 2.3–18.7
32M040HH411EC 43 1023 116 11.5–91.8 3.5–28.0
32M015HH411EC 69 712 80 18.4–146.8 5.6–44.8
32M020HH411EC 86 592 67 23.0–183.5 7.0–56.0
32M015HH411EC 115 455 51 30.7–244.7 9.4–74.6
(vp) = voltage and phase
11 = 115 V, 1-phase
23 = 208 –230/460 V, 3-phase
NOTE: For belt speed other than those listed, con-
tact factory for details.
SpecificationsSpecificationsSpecifications

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 6Dorner Mfg. Corp.
Ç
LPZ Series Conveyors are
not reversible. Reversing
creates pinch points which
can cause severe injury.
DO NOT REVERSE LPZ SE-
RIES CONVEYORS.
WARNING
NOTE: Conveyor MUST be mounted straight, flat
and level within confines of conveyor. Use a level
(M of Figure 3) for setup.
M
Figure 3
Required Tools
DHex-key wrenches:
4 mm, 5 mm
DLevel
DTorque wrench
D8mm hex, open end wrench
Recommended Installation Sequence
DInstall support stands (see accessory instructions)
DAssemble conveyor (if required)
DAttach mounting brackets to conveyor (see page 7
for instructions)
DAdjust angle (see page 17 for instructions)
DAttach conveyor to stands
DInstall return rollers on conveyor (see page 8 for in-
structions)
DMount gearmotor mounting package (see page 9 for
instructions)
DAttach guides/accessories (see page 38 through 44 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 7
and “Return Rollers”on page 8.
Conveyors Longer Than 13 ft (3962 mm)
1.Locate components (see Figure 4).
N Conveyor frame with knuckle
O Conveyor frame with idler end
P Belt
Q Knuckle
R Intermediate Conveyor Frame (required for convey–
or sections over 13’(3962 mm) long)
Installation Component List
Figure 4
N
O
Q
P
R
2.On tension end of the conveyor, identified by the
pinion locking screw (S of Figure 5), push in head
plate assembly (U): Loosen the pinion locking screw
(S), adjust the pinion torque screw (V of Figure 6).
On both sides of conveyor, loosen the two tail clamp
bolts (T of Figure 5), and push head plate assembly
(U) inward.
Figure 5
TU
S
Installation

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 7851-518 Rev. A
Figure 6
V
3.Roll out conveyor belt (P of Figure 7). Loosen (4)
screws (W) on both sides of knuckle (Q). Slide frame
(O) into knuckle (Q). Tighten screws (W) to 60 in-lb
(7 N–m) on both sides of conveyor.
Figure 7
O
Q
W
P
4.Join additional conveyor sections if necessary and
install connector brackets (X of Figure 8) or
connector/mount brackets (XA) and screws (Y) on
both sides as indicated. Tighten screws to 60 in-lb (7
Nm).
Figure 8
X
YXA
5.Slide belt (P of Figure 9) over assembled conveyor
sections (Z).
Figure 9
P
Z
6.Tension conveyor belt, refer to “Conveyor Belt
Tensioning”on page 15.
7.Install mounting brackets and return rollers. Refer to
“Mounting Brackets”on page 7 and “Return
Roller”on page 8.
8.Adjust conveyor angle. See “Conveyor Angle Ad-
justment”on page 17.
Mounting Brackets
1.Locate brackets. Exploded views shown in Figure 10.
Figure 10
AA
AE
AD
AC
AB
Mounting Brackets for Flat Belt Conveyor
2.Remove screws (AA & AB of Figure 10), washers
(AC), nuts (AD) and T-bars (AE) from brackets.
3.Insert T-bars (AE of Figure 10) into conveyor side
slots (AE of Figure 11). Fasten brackets (AF of
Figure 11) to conveyor with mounting screws (AA).
Installation

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 8Dorner Mfg. Corp.
Figure 11
AC
AB
AE
AA
AF
AD
4.Fasten brackets to support stand with mounting
screws (AB of Figure 11), washers (AC) and nuts
(AD).
5.Tighten screws (AA & AB of Figure 11) to 60 in-lb
(7 Nm).
Return Rollers
4–6¨(102–152 mm) Wide Flat Belt Conveyors
1.Locate return rollers. Exploded view shown in
Figure 12.
Figure 12
AG AH
AG
AH
Return Rollers for Flat Belt Conveyor
2.Remove screws (AG of Figure 12) and clips (AH)
from roller assembly.
3.Install roller assemblies (AI of Figure 13) as shown.
Tighten screws (AG) to 60 in-lb (7 Nm).
Figure 13
AG
AI
AI
8–48¨(203–1219 mm) Wide Flat Belt Conveyors
1.Locate return rollers. Exploded view shown in
Figure 14.
Figure 14
AJ AK
AJ
AK
2.Remove screws (AJ of Figure 14) and clips (AK)
from roller assembly.
3.Install roller assembly as shown (AL of Figure 15).
Tighten screws (AJ) to 60 in-lb (7 Nm).
Figure 15
AJ
AL
InstallationInstallation

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 9851-518 Rev. A
Gearmotor Installation
Required Tools
DHex key wrenches:
2 mm, 2.5 mm, 3 mm, 5 mm
DTorque wrench
Mounting
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
WARNING
1.Locate components of Figure 16.
AN
Figure 16
AMAO
AP
AQ
AR
AS
AM Gearhead with mounting bracket
AN Motor
AO Gear Reducer Key
AP Cover
AQ Cover Bolts
AR Motor Mount Bolts
AS Spacer Ring
Gearmotor Installation Component List
NOTE: Gearmotor may be operated in positions 1,
3 or 4 (Figure 17).
Figure 17
1
3
4
2.If required, change gearmotor position by removing
four (4) screws (AT of Figure 18). Rotate gearmotor
mounting plate to other position and replace screws
(AT). Tighten to 200 in-lb (22.5 Nm).
Figure 18
AT
AT
Ç
Drive shaft keyway may be
sharp.
HANDLE WITH CARE.
WARNING
3.Install key (AO of Figure 19) on drive shaft(AU).
Install cover (AP) over bearing housing (AV)
Figure 19
AO
AU AP
AV
Installation

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 10 Dorner Mfg. Corp.
4.Install cover (AP of Figure 20) with four (4) screws
(AQ).
Figure 20
AQ
AP
5.Slide gearmotor (AM of Figure 21) on to drive shaft
(AU of Figure 19). Tighten mounting screws (AR)
to 200 in–lbs (22.5 N–m).
Figure 21
AM
AR
Preventive Maintenance and Adjustment
Required Tools
Standard Tools
DHex-key wrenches:
2.5 mm, 4 mm, 5 mm
D8mm hex, open end wrench
Checklist
DKeep service parts on hand (see “Service Parts”sec-
tion for recommendations)
DKeep supply of belt cleaner (part # 625619)
DClean entire conveyor and knurled pulley while dis-
assembled
DReplace worn or damaged parts
Lubrication
No lubrication is required. Replace bearings if worn.
Maintaining Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
DSurface cuts or wear
DStalling or slipping
DDamage to V-guide
Surface cuts and wear indicate:
DSharp or heavy parts impacting belt
DJammed parts
DImproperly installed bottom wipers (if installed)
DAccumulated dirt in wipers (if installed)
DForeign material inside the conveyor
DImproperly positioned accessories
DBolt-on guiding is pinching belt
Stalling or slipping indicates:
DExcessive load on belt
DConveyor belt or drive timing belt are not properly
tensioned
DWorn knurl or impacted dirt on drive pulley
DIntermittent jamming or drive train problems
Damage to V-guide indicates:
DTwisted or damaged conveyor frame
DDirt impacted on pulleys
DExcessive or improper side loading
NOTE: Visit www.dorner.com for complete list of
troubleshooting solutions.
Cleaning
IMPORTANT: Do not use belt cleaners that con-
tain alcohol, acetone, Methyl Ethyl Ketone (MEK) or
other harsh chemicals.
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.
Installation

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 11 851-518 Rev. A
Conveyor Belt Replacement
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
Conveyor Belt Replacement Sequence
DRelease Tension
DRemove old conveyor belt:
-Conveyor without Stands or Gearmotor Mounting
Package
-Conveyor with Stands and Gearmotor Mounting
Package
DInstall new conveyor belt
DTension conveyor belt
Belt Removal for Conveyor Without Stands
1.Remove air supply and remove hose (AW of Figure
22) from center drive.
Figure 22
AW
2.If equipped, remove return rollers and guiding and
accessories from one side of conveyor.
3.Temporarily support idler guard assembly (AX of
Figure 23). Remove screws (AY).
Figure 23
AX
AY AY
4.Swing down idler guard assembly (AX of Figure
24). Remove screw (AZ) from both sides of center
drive and remove idler guard assembly (AX).
AZ
Figure 24
AX
5.Remove screws (BA of Figure 25) and tensioning
guards (BB) from both sides of center drive.
Figure 25
BB
BA
Preventive Maintenance and AdjustmentPreventive Maintenance and Adjustment

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 12 Dorner Mfg. Corp.
6.Temporarily support the tensioning roller guard (BD
of figure 26). Remove screws (BC of Figure 26) on
both sides of center drive and remove tensioning
roller guard (BD of Figure 26 and 27).
Figure 26
BC
BD
7.Loosen tensioning roller set screws (BE of Figure
27).
BE BF
Figure 27
BC
8.Push shaft (BF of Figure 27) through block, slide
block (BG of Figure 28) towards air cylinder (BH).
Figure 28
BG
BH
9.Push shaft (BF of Figure 29) through block (BG) on
opposite side of center drive, slide block toward air
cylinder (BH).
Figure 29
BF
BG
BH
10.Slide out tensioning roller (BI of Figure 30).
Figure 30
BI
11.Remove belt (BJ of Figure 31) from center drive
module (B) and conveyor.
Figure 31
BJ
B
Preventive Maintenance and Adjustment

Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 13 851-518 Rev. A
12.Remove screws (BK of Figure 32) on both sides of
knuckle and remove guard (BL).
Figure 32
BL
BK
13.Push in hex posts (BM of Figure 33) and remove
roller (BN).
Figure 33
BM
BN
14.Remove belt (BJ of Figure 34) from conveyor.
Figure 34
BJ
Belt Removal for Conveyor With Stands
Ç
Ç
Removing mounting brackets
without support under gear-
motor will cause conveyor to
tip, causing severe injury.
PROVIDE SUPPORT UNDER-
NEATH THE GEARMOTOR
WHEN CHANGING THE BELT
1.Place temporary support stands (BO of Figure 37) at
both ends of the conveyor. See WARNING.
Figure 35
BO
BQ
2.If equipped, remove return rollers, guiding and
accessories from one side of conveyor.
3.Repeat steps 1 thru 13 of the “Belt Removal for
Conveyors Without Stands”section on page 11.
4.Remove first mounting brackets (BQ of Figure 37)
from one side of conveyor. (Reverse steps 3 & 4 of
“Mounting Brackets”section on page 7).
5.Remove belt (BJ of Figure 36) from conveyor, one
stand at a time. Start on one end of conveyor and
work down to opposite end.
Figure 36
BJ
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 14 Dorner Mfg. Corp.
Figure 37
BO
BP BO
BQ
BQ
Belt Installation for Conveyor without Stands
1.Orient belt so splice leading fingers (BR of Fig-
ure 40) point in the direction of belt travel as identi-
fied by the conveyor directional label (BS).
BR
BS
Figure 38
2.Slide belt onto the conveyor frame assembly.
3.Reverse steps 1 thru 13 of the “Belt Removal for
Conveyors Without Stands”section on page 11.
4.If equipped, install wipers, return rollers and guid-
ing.
5.Reattach air supply (AW of Figure 39) to center
drive. Refer to “Conveyor Belt Tensioning”section
on page 15 for more information.
Figure 39
AW
6.Track conveyor and center drive if required. See
“Center Drive Module Tracking“section on page 16
and “Conveyor Belt Tracking”section on page 15.
Belt Installation for Conveyor with Stands
Ç
Removing mounting brackets
without support under gear-
motor will cause conveyor to
tip, causing severe injury.
PROVIDE SUPPORT UNDER-
NEATH THE GEARMOTOR
WHEN CHANGING THE BELT
1.Ensure temporary support stands (BO of Figure 37)
are placed at both ends of the conveyor. See
WARNING.
2.Orient belt so splice leading fingers (BR of Fig-
ure 40) point in the direction of belt travel as identi-
fied by the conveyor directional label (BS).
Figure 40
BR
BS
3.Install belt (BJ of Figure 40) on conveyor. Lift
conveyor slightly to avoid pinching belt on tempo-
rary support stands.
Figure 41
BJ
4.Re-install conveyor mounting brackets. Refer
“Mounting Brackets”on page 7, steps 3 through 5.
5.Reverse steps 1 thru 13 of the “Belt Removal for
Conveyors Without Stands”section on page 11.
6.If equipped, install wipers, return rollers and guid-
ing.
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 15 851-518 Rev. A
7.Reattach air supply (AW of Figure 39) to center
drive. Refer to “Conveyor Belt Tensioning”section
on page 15 for more information.
Figure 42
AW
8.Track conveyor and center drive if required. See
“Center Drive Module Tracking“section on page 16
and “Conveyor Belt Tracking”section on page 15.
Conveyor Belt Tensioning
Ç
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
1.Connect air supply (AW of Figure 43) to regulator
(BT).
2.Adjust regulator (BT of Figure 43) until gage reads
the appropriate pressure. See following table for
suggested pressures.
Figure 43
BT
AW
Suggested Tensioning Air Pressure for LPZ &
3200 Series Flat Belt Center Drive Conveyors
Width Pressure
4”(95 mm) 20 psi (138 kPa)
6”(152 mm) 30 psi (207 kPa)
8”(203 mm) 40 psi (276 kPa)
10”(254 mm) 50 psi (345 kPa)
14”(356 mm) 60 psi (414 kPa)
18”(457 mm) 70 psi (483 kPa)
24”(610 mm) & wider 80 psi (552 kPa)
3.If proper belt tension cannot be achieved before the
out of tension indicator (BU of Figure 44) begins to
turn red, the belt must be replaced.
Figure 44
BU
4.If belt tracking is necessary, refer to “Conveyor Belt
Tracking”on page 15 and “Center Drive Module
Tracking”on page 16.
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 assemblies.
When adjusting belt tracking, always adjust the dis-
charge end of the conveyor first. To adjust belt tracking:
1.On the side of conveyor which the belt is tracking
towards, loosen the head plate fastening screws (BV
of Figure 45).
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 16 Dorner Mfg. Corp.
Figure 45
BV
2.With the conveyor running, use wrench (BW of
Figure 46) to rotate the tracking screw (BX of Figure
47) in small increments until the belt tracks in the
center of the conveyor.
Figure 46
BW
Figure 47
BX
3.Re-tighten the head plate fastening screws (BV of
Figure 45)with a 5 mm hex-key wrench to 146 in-lb
(16.5 Nm).
Center Drive Module Tracking
V-Guided Belts
V-guided belts do not require tracking adjustment.
Non V-Guided Belts
Non V-guided belt center drives are equipped with cam
tracking assemblies.
To adjust center drive tracking, with the conveyor
running:
1.Inspect belt as it exits the center drive:
Figure 48 –Normally tracked belt, do nothing
Figure 49 –Tracking necessary, adjust tight side
cam
Figure 48
Figure 49
2.If necessary, adjust the tracking cam: loosen the
center drive fastening screws (BY of Figure 50) on
the side of center drive to be tracked.
Figure 50
BY
3.Rotate the tracking cam (BZ of Figure 51) in small
increments, each time inspecting the belt as it exits
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
Dorner Mfg. Corp. 17 851-518 Rev. A
the center drive. Continue to rotate the tracking cam
until conveyor belt is tracking normally.
Figure 51
BZ
4.Tighten the center drive fastening screws (BY of
Figure 50) to 146 in–lbs (16.5 N–m).
Conveyor Angle Adjustment
Ç
Removing mounting brackets
or adjustment screws without
support under gearmotor and
conveyor will cause conveyor
to tip or drop, causing severe
injury.
PROVIDE SUPPORT UNDER-
NEATH THE GEARMOTOR
WHEN ADJUSTING THE CON-
VEYOR ANGLE
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
1.Place temporary support (CA of Figure 52) under
conveyor sections.
Figure 52
CA
2.Loosen screws (CB of Figure 53) on both sides of
knuckle.
Figure 53
CB
3.Move conveyor to desired angle as indicated by
angle label (CC of Figure 54).
Figure 54
CC
4.Tighten screws (CB of Figure 53) on both sides of
knuckle to 100 in–lbs (12 N–m).
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
851-518 Rev. A 18 Dorner Mfg. Corp.
End and Knuckle Pulley Removal
Ç
Exposed moving parts can
cause severe injury.
LOCK OUT POWER before
removing guards or
performing maintenance.
Ç
Exposed moving parts can
cause severe injury.
REMOVE COMPRESSED AIR
SUPPLY before removing
guards or performing
maintenance.
1.Remove air supply and remove hose (AW of Figure
55) from center drive.
Figure 55
AW
2.Temporarily support idler guard assembly (AX of
Figure 23). Remove screws (AY).
Figure 56
AX
AY AY
3.Swing down idler guard assembly (AX of Figure
57).
Figure 57
AX
Remove the desired pulley following the corresponding
instructions below:
DA–Idler Pulley Removal
DB–Transfer Tail Pulley Removal
DC–Knuckle Idler Pulley Removal
DD–Knuckle Return Roller Removal
A–Idler Pulley Removal
1.Temporarily support the idler pulley.
Figure 58
2.On one side of conveyor, loosen the two (2) back
fastening screws (T of Figure 59) and remove two
(2) front fastening screws (CD).
Figure 59
T
CD
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
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3.Pull back the outer headplate (U of Figure 60) and
remove the inner spacer (CE).
Figure 60
CE
U
CE
4.Slide the idler pulley assembly (CF of Figure 61) out
of the headplate on the opposite side.
Figure 61
CF
5.Remove the pulley shaft assembly: remove the clip
ring (CG of Figure 62) and washer (CH) from one
side of the pulley assembly.
Figure 62
CG
CH
6.Slide the shaft assembly (CI of Figure 63) out of the
pulley (CF).
Figure 63
CI
CF
B–Transfer Tail Pulley Removal
1.Temporarily support the transfer tail assembly.
Figure 64
2.On one side of conveyor, loosen the two (2) back
fastening screws (T of Figure 65), and remove the
two (2) front fastening screws (CD).
Figure 65
T
CD
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Flat Belt Center Drive LPZ Conveyor Installation, Maintenance & Parts Manual
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3.Pull back the outer headplate (U of Figure 66) and
remove the inner spacer (CE).
Figure 66
U
CE
4.Slide the transfer tail pulley assembly (CJ of Figure
67) out of the headplate on the opposite side.
NOTE: Transfer tail assembly must be removed as
on piece. Removal may require removing screws T
of Figure 65 and headplate U of Figure 66 as shown
in Figure 67
Figure 67
CJ
5.Remove hex nuts (CK of Figure 68).
Figure 68
CK
6.Remove support plates (CL of Figure 69) and
washers (CM).
Figure 69
CL
CM
7.Remove pulleys (CN of Figure 70) and additional
washers (CO).
Figure 70
CN
CO
8.To remove additional pulleys, repeat steps 6 through
7.
C–Knuckle Idler Pulley Removal
1.Remove knuckle return roller and guard see
“Knuckle Return Roller Removal”on page 21.
2.Temporarily support the knuckle idler pulley.
Figure 71
3.On one side of knuckle, remove screws (CP of
Figure 72) and knuckle plate assembly (CQ).
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