Dorner AquaGard 7200 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]
851-564 Rev. G
7200 Series Sanitary End
Drive Conveyors
Installation, Maintenance & Parts Manual
Featuring: Technology

Dorner Mfg. Corp. 2 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Table of Contents
Introduction ......................................................................... 2
Warnings - General Safety .................................................. 3
Product Description ............................................................. 4
Specifications ...................................................................... 4
Installation ........................................................................... 6
Required Tools................................................................. 6
Recommended Installation Sequence .............................. 6
Conveyors Up to 12 ft (3658 mm)................................... 6
Conveyors Longer Than 12 ft (3658 mm) ....................... 6
Attaching Conveyor to Stands or Mounting Brackets ..... 7
Return Rollers .................................................................. 8
2¨ to 6¨ (44mm to 152mm) Wide Conveyor ................ 8
8¨ to 18¨ (203mm to 457mm) Wide Flat
Belt Conveyors............................................................. 8
Preventive Maintenance and Adjustment.......................... 10
Required Tools............................................................... 10
Standard Tools............................................................ 10
Special Tools .............................................................. 10
Checklist ........................................................................ 10
Lubrication..................................................................... 10
Conveyor Bearings..................................................... 10
Return Rollers ............................................................ 10
Maintaining Conveyor Belt ........................................... 10
Troubleshooting ......................................................... 10
Cleaning ..................................................................... 10
Conveyor Belt Replacement .......................................... 10
Conveyor Belt Replacement Sequence ...................... 11
A −Belt Removal for Conveyor Without
Gearmotor Mounting Package or Stands ................... 11
B −Belt Removal for Conveyor With Stands
and/or Gearmotor Mounting Package ........................ 11
A −Belt Installation for Conveyor without
Gearmotor Mounting Package or Stands .................... 13
B −Belt Installation for Conveyor with
Gearmotor Mounting Package and/or Stands ............. 13
Conveyor Belt Tensioning.............................................. 13
Pulley Removal .............................................................. 14
A −Drive Pulley Removal.......................................... 14
B −Idler Pulley Removal ........................................... 15
Bearing Replacement for Drive or Idler Pulley.............. 15
Bearing Removal ........................................................ 15
Bearing Installation..................................................... 16
Pulley Installation........................................................... 16
A −Drive Pulley Installation ...................................... 16
B −Idler Pulley Installation........................................ 17
Service Parts....................................................................... 18
Drive End Components .................................................. 18
Tension End Components .............................................. 19
Conveyor Frame and Extension ..................................... 20
−21 1” (25mm) Sanitary Bolt−On High Sides ...............21
−22 2” (51mm) Sanitary Bolt −On High Sides .............22
−23 Sanitary Fully Adjustable UHMW Guide ...............23
−24 Sanitary Adjustable Width UHMW Guides 2............4
Sanitary 2” (51mm) Through 6” (152mm) Wide
Flat or Cleated Belt Return Roller ..................................25
Sanitary 8” (203mm) Through 18” (457mm) Wide
Flat Belt Return Roller ...................................................25
Conveyor Mounting Brackets ........................................ 26
Configuring Conveyor Belt Part Number ......................27
Return Policy...................................................................... 28
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 7200 Series conveyors are covered by Patent Nos.
5174435, 6109427, 6685009 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.

851-564 Rev. G 3 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Warnings - General Safety
A
WARNING
The safety alert symbol, black triangle with
white exclamation, is used to alert you to
potential personal injury hazards.
A
DANGER
Climbing, sitting, walking or riding on
conveyor will cause severe injury.
KEEP OFF CONVEYORS.
A
DANGER
DO NOT OPERATE CONVEYORS IN AN
EXPLOSIVE ENVIRONMENT.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
A
WARNING
Gearmotors may be HOT.
DO NOT TOUCH Gearmotors.
A
WARNING
Dorner cannot control the physical
installation and application of conveyors.
Taking protective measures is the
responsibility of the user.
When conveyors are used in conjunction
with other equipment or as part of a multiple
conveyor system, CHECK FOR POTENTIAL
PINCH POINTS and other mechanical
hazards before system start-up.
A
WARNING
Loosening stand height or angle adjustment
screws may cause conveyor sections to drop
down, causing severe injury.
SUPPORT CONVEYOR SECTIONS PRIOR TO
LOOSENING STAND HEIGHT OR ANGLE
ADJUSTMENT SCREWS.

Dorner Mfg. Corp. 4 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Product Description
Refer to Figure 1 for typical conveyor components. Figure 1
Figure 1
Specifications
Models
Flat Belt 7200 Series Sanitary Conveyor
Cleated Belt 7200 Series Sanitary
Conveyor
* See “Ordering and Specifications” Catalog for details.
Conveyor Supports:
Maximum Distances:
J = 18¨ (457mm)**
K= 6 ft (1829mm)***
L= 18¨ (457mm)
** For Heavy Load Bottom Mount Package, mount support
under gearmotor.
*** For conveyors longer than 12 ft (3658mm), install
support at frame joint.
Figure 2
Figure 2
AConveyor
B Gearmotor
C Belt (Flat Belt Shown)
D Mounting Plates
E Return Roller
F Support Stands
G Motor Controller
HDriveEnd
I Tensioning End
A
B
C
G
HI
FE
D
Flat Belt 7200 Series Sanitary Conveyor
Conveyor Width Reference
Conveyor Length Reference
Belt Type*
Output Shaft Position*
Conveyor Profile*
2 = Flat Belt End Drive Conveyor
Document Language, M = USA English
72 B M WW LLLL P GG BB
1= No Wiper − with Mounting Brackets
2 = No Wiper − without Mounting Brackets
3 = End Wiper − with Mounting Brackets
4 = End Wiper − without Mounting Brackets
5 = Dual Wiper − with Mounting Brackets
6 = Dual Wiper − without Mounting Brackets
Conveyor Width Reference
Conveyor Length Reference
Output Shaft Position*
Cleat Spacing*
4 = Cleated Belt with Mounting Brackets
5 = Cleated Belt without Mounting Brackets
8 = Low Friction Cleated Belt with Mounting Brackets
9 = Low Friction Cleated Belt without Mounting
Brackets
Document Language, M = USA English
7 D B M WW LLLL P SSSS
Cleat Type (A−J)*
KJ L

851-564 Rev. G 5 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Specifications
Specifications:
* See “Ordering and Specifications” Catalog for details.
** Lengths available only in 6¨ (152mm) & wider
conveyors.
Conveyor Width
Reference (WW) 02 03 04 05 06 08 10 12 18
Conveyor Belt Width 1.75¨
(44mm) 2.75¨ (70mm) 3.75¨ (95mm) 5¨ (127mm) 6¨ (152mm) 8¨ (203mm) 10¨ (254mm) 12¨ (305mm) 18¨ (457mm)
Maximum Conveyor Load*
(See NOTE Below) 30 lb (14 kg) 35 lb (16 kg) 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)
Conveyor Start-up Torque* 4 in-lb
(0.5 Nm) 5 in-lb (0.6 Nm) 6 in-lb (0.7 Nm) 7 in-lb (0.8 Nm) 8 in-lb (0.9 Nm) 10 in-lb (1.1 Nm) 12 in-lb (1.4 Nm) 14 in-lb (1.5 Nm) 15 in-lb (1.7 Nm)
Belt Travel 4.3¨ (109 mm) per revolution of pulley
Maximum Belt Speed* 235 feet/minute (72 meters/minute)
Belt Take-up 0.38¨ (10 mm) of stroke = 0.75¨ (19 mm) of belt take-up
Conveyor Length
Reference (LL) 02 03 04 05 06 07 08 09 10 11 12 13** 14** 15** 16** 17** 18**
Conveyor Length
2-ft (610mm) 3-ft (914mm)
4-ft (1219mm) 5-ft (1524mm) 6-ft (1829mm) 7-ft (2134mm) 8-ft (2438mm) 9-ft (2743mm)
10-ft (3048mm) 11-ft (3353mm) 12-ft (3658mm)
13-ft (3962mm)** 14-ft (4267mm)** 15-ft (4572mm)** 16-ft (4877mm)** 17-ft (5182mm)** 18-ft (5486mm)**
NOTE
Maximum conveyor loads are based on:
• Non-accumulating product
• Product moving towards gearmotor
• Conveyor being mounted horizontal
• Conveyor being located in a dry environment
• Conveyor with standard belt only

Dorner Mfg. Corp. 6 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Installation
Figure 3
Figure 3
Figure 4
Figure 4
Required Tools
• 10 mm wrench (for hexagon head fasteners)
• Level
• Torque wrench
Recommended Installation
Sequence
• Assemble conveyor (if required)
• Install stands (see accessory instructions)
• Attach stands/mounting brackets to conveyor (see page 7)
• Mount gearmotor mounting package (see accessory
instructions)
• Attach return rollers (see page 8)
• Attach guides/accessories (see “Service Parts” section
starting on page 18)
Conveyors Up to 12 ft (3658mm)
No assembly is required. Install stands/mounting brackets
and return rollers. Refer to “Attaching Conveyor to Stands or
Mounting Brackets” on page 7 and “Return Rollers” on
page 8.
Conveyors Longer Than 12 ft
(3658mm)
1. Typical components (Figure 5).
Figure 5
Figure 5
NOTE
7200 Series sanitary conveyors are shipped
with a “belt travel direction” sticker (Figure
3, item M) installed. After drive is installed
and tested, remove sticker.
NOTE
Dorner recommends cleaning all the “food
zones” prior to placing conveyor into service.
Insure adequate access is provided for
cleaning and servicing equipment so that the
required level of hygiene can be maintained.
NOTE
Conveyor MUST be mounted straight, flat,
and level within confines of conveyor. Use a
level (Figure 4, item N) during setup.
M
N
O Conveyor frame extension
P M6 x 10mm Hex Head Cap Screws (12x)
Q Connector Strips (2x)
R Conveyor frame
R
O
Q
P

851-564 Rev. G 7 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Installation
2. Compress tensioning end (Figure 6). Refer to steps 4
and 5 under the “Belt Removal for Conveyor Without
Gearmotor Mounting Package or Stands” on page 11.
Figure 6
Figure 6
3. Install frame connecting bar (Figure 7, item Q) on
conveyor frame (R) with three screws (P). Do not
tighten screws.
Figure 7
Figure 7
4. Repeat step 3 for other side of conveyor frame.
5. Install conveyor frame extension (Figure 8, item O) on
frame connecting bar (Q) with three screws (P). Install
three screws (P) on opposite side. Tighten all screws to
92 in-lb (10.4 Nm).
Figure 8
Figure 8
6. Install conveyor belt. Refer to steps 1 through 3 under
“Belt Installation for Conveyor without Gearmotor
Mounting Package or Stands” on page 13.
7. Tension conveyor belt. Refer to “Conveyor Belt
Tensioning” on page 13.
Attaching Conveyor to Stands or
Mounting Brackets
1. Typical mounting bracket components (Figure 9)
(One Pair).
Figure 9
Figure 9
2. Attach clamp plate (Figure 9, item V or W) to stand/
conveyor ear mount bracket (U) with two screws (S).
Do not tighten screws.
P
QR
P
O
Q
NOTE
Conveyor may be mounted using mounting
brackets as shown in Figure 9 and Figure 10
or directly to support stands. For direct
support stand mounting, see stand manual.
S M6 x 10 mm Hex Head Cap Screw (4x)
T M6 x 12 mm Hex Head Cap Screw (4x)
U Stand/Conveyor Ear Mount Bracket (2x)
V Clamp Plate, Flat Belt (2x)
or
W Clamp Plate, Cleated Belt (2x)
T
V
S
U
W
or

Dorner Mfg. Corp. 8 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Installation
3. Attach stand/conveyor ear mount bracket (Figure
10, item U) to bottom of conveyor (Z). Make sure notch
(AA) on bracket straddles conveyor edge as shown.
Snug−up two screws (S).
Figure 10
Figure 10
4. Repeat steps 2 and 3 for other mounting bracket(s).
Tighten all screws (S) to 80 in-lb (9 Nm).
Return Rollers
2¨ to 6¨ (44mm to 152mm) Wide Conveyor
1. Return roller components (Figure 11).
Figure 11
Figure 11
2. Loosely attach clamp plate (Figure 12, item AC) on
mounting block (AB) with two screws (AD). Do not
tighten screws.
Figure 12
Figure 12
3. Attach return roller assembly (Figure 13, item AE) on
each side of conveyor (Z). Tighten screws (AD) to 80
in-lb (9 Nm).
Figure 13
Figure 13
4. On 8−18 ft (2338−5486 mm) conveyor, repeat step 3 as
necessary for other return rollers.
NOTE
No return rollers are required on conveyor
lengths up to 7 ft (2134 mm). Use one pair of
rollers centered between the tensioning and
drive spindles on 8
− 15 ft (2438 − 4572 mm)
conveyors. Use two pairs of rollers at one
third distances between the tensioning and
drive spindles on 16
− 18 ft (4877 − 5486 mm)
conveyors.
S
Z
AA
U
AB Mounting Block
AC Clamp Plate
AD Hex Head Cap Screw M6−1.0 x 12mm (2x)
AD
AB
AC
AD AB
AC
AD
AE
Z

851-564 Rev. G 9 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Installation
8¨ to 18¨ (203mm to 457mm) Wide Flat Belt
Conveyors
1. Typical return roller components (Figure 14)
Figure 14
Figure 14
2. Loosely attach two clamp plates (Figure 15, item AG)
on roller and guard assembly (AF) with four screws
(AH). Do not tighten screws.
Figure 15
Figure 15
3. Attach return roller assembly (Figure 16, item AI) on
conveyor (Z). Make sure return roller assembly is
perpendicular with conveyor frame as shown. Tighten
screws (Figure 15, item AH) to 80 in-lb (9 Nm).
Figure 16
Figure 16
4. On 16−18 ft (4877−5486 mm) conveyor, repeat step 3
for other return roller.
NOTE
No return rollers are required on conveyor
lengths up to 7 ft (2134 mm). Use one roller
centered between the idler and drive spindles
on 8
− 15 ft (2438 − 4572 mm) conveyors. Use
two rollers at one third distances between the
idler and drive spindles on 16
− 18 ft (4877 −
5486 mm) conveyors.
AF Return Roller and Guard Assembly
AG Return Roller Clamp Plate (2x)
AH Hex Head Cap Screw M6−1.0 x 12mm (4x)
AH
AF
AG
AF
AH
AG
AH
AI
Z
90

Dorner Mfg. Corp. 10 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
Required Tools
Standard Tools
• Wrenches: 8 mm, 10 mm, 3/8” (or an adjustable wrench)
• Small bearing puller
• Arbor press
Special Tools
• 456063 Bearing Removal Tool
• 456085 Bearing Installation Tool
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
Conveyor Bearings
No lubrication is required. Replace bearings if worn.
Return Rollers
No lubrication is required. Replace bearings if worn.
Maintaining Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
• Stalling or slipping
• Damage to V-guide
Surface cuts and wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Improperly installed bottom wiper(s)
• Accumulated dirt in wiper(s)
• 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
NOTE
Dorner recommends cleaning all the “food
zones” prior to placing conveyor into service.
Insure adequate access is provided for
cleaning and servicing equipment so that the
required level of hygiene can be maintained.
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.

851-564 Rev. G 11 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
Conveyor Belt Replacement Sequence
(see Table of Contents for page number)
• Remove old conveyor belt
A - Conveyor without Gearmotor Mounting Package or
Stands
B - Conveyor with Stands and/or Gearmotor Mounting
Package
• Install new conveyor belt
A - Conveyor without Gearmotor Mounting Package or
Stands
B - Conveyor with Stands and/or Gearmotor Mounting
Package
• Tension conveyor belt
A −Belt Removal for Conveyor Without
Gearmotor Mounting Package or Stands
1. If installed, remove and retain two M5 hex head screws
(Figure 17, item AJ), bottom wiper (AK) and two
sleeves (AL).
Figure 17
Figure 17
2. If installed, repeat step 1 for tension end wiper.
3. If conveyor is equipped with guiding and accessories or
return rollers, remove and retain them as necessary.
4. Loosen four M6 hex head cap screws (Figure
18, item AM) and (Figure 19, item AM).
Figure 18
Figure 18
5. Retract idler spindle assembly (Figure 19, item AN) by
pushing in on it or by turning M6 hex head pinion screw
(AO) clockwise.
Figure 19
Figure 19
6. Remove conveyor belt (Figure 20, item AP).
Figure 20
Figure 20
AK AJ
AL
AM
AO
AN
AM
AP

Dorner Mfg. Corp. 12 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
B −Belt Removal for Conveyor With
Stands and/or Gearmotor Mounting
Package
Figure 21
Figure 21
1. If installed, remove and retain two M5 hex head screws
(Figure 17, item AJ), bottom wiper (AK) and two
sleeves (AL).
2. If installed, repeat step 1 for tension end wiper.
3. If conveyor is equipped with guiding and accessories or
return rollers, remove and retain them as necessary.
4. Loosen four M6 x 20 mm hex head cap screws (Figure
18, item AM) and (Figure 19, item AM).
5. Retract idler spindle assembly (Figure 19, item AN) by
pushing in on it or by turning M6 x 25 mm hex head
pinion screw (Figure 19, item AO) and (Figure
20, item AO) clockwise.
6. Place a temporary support (Figure 21, item AT) and
(Figure 22, item AT) under gearmotor mounting
package.
Figure 22
Figure 22
7. Loosen two clamp plate screws (Figure 23, item S) on
side of conveyor opposite drive motor.
Figure 23
Figure 23
8. Repeat step 7 for remaining stand/conveyor ear mount
brackets or stand assemblies on same side of conveyor.
9. Raise conveyor and remove conveyor belt (Figure
24, item AP).
Figure 24
Figure 24
10. If a new belt will not be installed immediately, secure
conveyor with stand/conveyor ear mount brackets or
stand assemblies.
NOTE
For conveyor with a Heavy Load Bottom or
Top Gearmotor Mounting Package, bracket
(Figure 21, item AR) must be removed.
• Remove two M6x30 mm hex head cap screws
and spacers (AQ).
• Remove two M6x16 mm hex head cap screws
(AS).
• Remove bracket (AR).
A
WARNING
The weight of the gearmotor is all on one end
of the conveyor which could cause it to tip off
the stands when the mounting clamp plates
are loosened. Be sure to provide support
(Figure 21, item AT) and (Figure 22, item AT)
underneath the gearmotor while changing
the belt.
AQ
AR
AS
AT
AT
S
AP

851-564 Rev. G 13 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
A −Belt Installation for Conveyor without
Gearmotor Mounting Package or Stands
1. Orient conveyor belt so the splice leading fingers
(Figure 25, item AV) point in the direction of belt travel
(AW) as identified by the label (Figure 26, item AU).
Figure 25
Figure 25
2. Slide belt (Figure 20, item AP) onto the conveyor frame
assembly.
3. If removed, install sleeves (Figure 17, item AL), bottom
wiper(s) (AK) and M5 hex head screws (AJ). Tighten
screws to 33 in-lb (3.7 Nm).
4. Tension belt. Refer to “Conveyor Belt Tensioning” on
page 13.
5. If removed, install return rollers, guiding and
accessories.
B −Belt Installation for Conveyor with
Gearmotor Mounting Package and/or
Stands
Figure 26
Figure 26
1. Orient conveyor belt so that the splice leading fingers
(Figure 25, item AV) point in the direction of belt travel
(AW) as identified by the label (Figure 26, item AU).
2. Slide belt (Figure 24, item AP) onto conveyor frame
assembly.
3. Tighten two clamp plate screws (Figure 23, item S)
4. Repeat step 3 for remaining stand/conveyor ear mount
brackets or stand assemblies.
5. If removed, install sleeves (Figure 17, item AL), bottom
wiper(s) (AK) and M5 hex head screws (AJ). Tighten
screws to 33 in-lb (3.7 Nm).
6. For a conveyor with a Heavy Load Bottom or Top
Mounting package, install bracket (Figure 21, item AR).
7. Tension belt. Refer to “Conveyor Belt Tensioning” on
page 13.
8. If removed, install return rollers, guiding and
accessories.
Conveyor Belt Tensioning
1. On tension end of the conveyor, loosen two M6 hex
head cap screws (Figure 27, item AM) on each side of
conveyor.
Figure 27
Figure 27
2. Extend idler spindle assembly (AN) by turning M6 hex
head screw (AX) clockwise to sufficiently tension belt
to handle conveyor load.
3. Tighten four M6 hex head screws (AM) to 40 in-lb (4.5
Nm) to secure idler spindle assembly (AN).
AV
AW
AU
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
NOTE
Do not exceed a torque of 25 in-lb (2.8 Nm)
for 2¨ through 12¨ (44 mm through 305 mm)
wide conveyors or 40 in-lb (4.5 Nm) for an 18¨
(457 mm) wide conveyor on tensioning screw
(AX). Over-tensioning the conveyor belt could
cause excessive pulley bearing load and
early failure.
NOTE
If the maximum take-up stroke is achieved,
replace the conveyor belt.
AN
AX
AM

Dorner Mfg. Corp. 14 851-564 Rev. G
7200 Series Sanitary End Drive 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 instructions:
•A−Drive Pulley Removal
•B−Idler Pulley Removal
A −Drive Pulley Removal
1. Remove the gearmotor mounting package. See
accessory instructions.
2. Remove screw (Figure 28, item AZ) and (Figure
29, item AZ) from each side of conveyor.
Figure 28
Figure 28
3. Remove two screws (Figure 29, item BA) from side of
conveyor opposite drive shaft.
Figure 29
Figure 29
4. Remove drive spindle assembly (BB).
A
WARNING
Exposed moving parts can cause severe
injury.
LOCK OUT POWER before removing guards
or performing maintenance.
A
WARNING
Drive shaft keyway may be sharp.
HANDLE WITH CARE.
NOTE
Two screws (Figure 28, item AY) were
removed in step 1.
Cross support post (Figure 30, item BC) will
not be secure and may drop when screws
(Figure 28, item AZ) and (Figure 29, item AZ)
are removed.
AY
AZ
NOTE
For a conveyor with a Heavy Load Bottom or
Top Gearmotor Mounting Package, the two
screws (Figure 29, item BA) were removed in
step 1.
Drive spindle assembly (Figure 29, item BB)
will not be secure and may drop when screws
(Figure 28, item AZ and AY) and (Figure
29, item AZ and BA) are removed.
BA
BB
AZ

851-564 Rev. G 15 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
5. Remove cross support post (Figure 30, item BC).
6. Remove two head plates (BD).
7. Remove drive pulley and bearing assembly (BE).
Figure 30
Figure 30
B −Idler Pulley Removal
1. While holding hex pinion (Figure 31, item BF) with a 3/
8” open−end wrench, loosen M6 hex head cap screw
(AO).
Figure 31
Figure 31
2. Remove M6 hex head cap screw (Figure 32, item AO)
and sleeve (BG) from conveyor (Z) and hex pinion
(BF).
Figure 32
Figure 32
3. Repeat steps 1 and 2 for screw (Figure 27, item AX) and
(Figure 33, item AX) on opposite side of conveyor.
4. Remove two M6 hex head cap screws (AM) from each
side of conveyor.
5. Remove two pinion ends (Figure 33, item BH), Wedge-
Lok® clamp blocks (BI), hex pinion (BF), two spacers
(BJ) and tail assembly (AN) from conveyor (Z).
Figure 33
Figure 33
6. Remove two head plates (Figure 34, item BK) from
spindle and bearing assembly (BL).
Figure 34
Figure 34
NOTE
If bearings require removal from drive pulley,
see “Bearing Removal” on page 16.
BC
BD
BE
BD
AO Z
BF
AO
BG
Z
BF
AM
BF
BJ
Z
AN
BI
BH
BJ
AO AM
AM
AX
BG
BL
BK

Dorner Mfg. Corp. 16 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
Bearing Replacement for Drive or
Idler Pulley
Bearing Removal
1. Place bearing removal tool (Figure 35, item BM) (part #
456063) below bearing (BN) with lip (BO) located in
gap (BP) between bearing and spindle hub (BQ) as
shown.
Figure 35
Figure 35
2. Using a puller (Figure 36, item BR), remove and discard
bearing.
Figure 36
Figure 36
Bearing Installation
1. Inspect bearing seating surface(s) for damage. Replace
spindle if damaged.
2. Slide bearing (part # 240338) (Figure 37, item BN) onto
spindle (BQ).
Figure 37
Figure 37
3. Slide sleeve (Figure 38, item BU) of tool (part #
456085) over bearing.
Figure 38
Figure 38
4. Place open end of pusher (Figure 39, item BV) into
sleeve.
Figure 39
Figure 39
5. Using an arbor press or similar device, press bearing
onto pulley shaft (Figure 40).
Figure 40
Figure 40
6. Repeat steps 1 through 5 for each bearing.
IMPORTANT
Once removed, do not re-use bearings.
BO
BP
BN BM
BQ
BR
BN
BQ
BU
BV

851-564 Rev. G 17 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Preventive Maintenance and Adjustment
Pulley Installation
A −Drive Pulley Installation
1. Reverse the removal procedure “A” (see page 14).
B −Idler Pulley Installation
Figure 41
Figure 41
Figure 42
Figure 42
1. Reverse the removal procedure “B” (see page 15).
IMPORTANT
Loosely install two spacers (Figure
33, item BJ) and (Figure 41, item BJ) and four
screws (AM) prior to installing idler tail
assembly (AN) on conveyor.
IMPORTANT
During idler pulley installation, orient both
pinion ends (Figure 42, item BH) so they
engage the same tooth positions on their
respective racks.
BJ
AN
AM
AM
BH

Dorner Mfg. Corp. 18 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Service Parts
Drive End Components
NOTE
For replacement parts other than those shown in this section, contact an authorized Dorner Service Center
or the factory. Key Service Parts and Kits are identified by the Performance Parts Kits logo . Dorner
recommends keeping these parts on hand.
2
7
12
5
8
13
6
14
15
4
13
16
9
11
10
17 Drive Tail Kit 18 Drive Spindle Kit
Item Part Number Description
1 807−1263 Plastic Hole Plug
2 456005 Head Plate Fixed w/o Wiper
450646 Head Plate Fixed w/Wiper LH
450647 Head Plate Fixed w/Wiper RH
3 72BK2 Bearing Kit (x2)
72BK4 Bearing Kit (x4)
4 4564WW Drive Spindle
5 980422MSS Square Key 4mm x 22mm
6 4588WW Cross Support Post
7 960620MSS Hex Head Cap Screw M6−1.0x20mm
8 960616MSS Hex Head Cap Screw M6−1.0x16mm
9 4557WW Washdown Wiper
10 456049 Sleeve
11 960520MSS Hex Head Cap Screw,
M5−0.80 x 20mm
12 456034 Name Tag
13 914−008 Rivet
14 807−1301 Spacer
15 960612MSS Hex Head Cap Screw, M6−1.0x12mm
16 4525WWMSS Frame Support Post
17 72DT−WW Drive Tail Kit w/o Wiper (Includes
Items 1 through 8)
72DTWA−WW Drive Tail Kit w/Wiper −Shaft Position
A or B (Includes Items 1 through 11)
72DTWD−WW Drive Tail Kit w/Wiper −Shaft Position
C or D (Includes Items 1 through 11)
18 72DS−WW Drive Spindle Kit (Includes Items 1, 3,
4 and 5)
WW = Conveyor width ref.: 02, 03, 04, 05, 06, 08, 10, 12, 18
Item Part Number Description

851-564 Rev. G 19 Dorner Mfg. Corp.
7200 Series Sanitary End Drive Conveyors
Service Parts
Tension End Components
1
7
10
9
5
8
3
6
11
13
12
4
14 2
18 Tension Tail Kit
19 Tension Spindle Kit
17
16
15
Item Part Number Description
1 4525WWSS Frame Support Post
2 960612MSS Hex Head Cap Screw, M6−1.0x12mm
3 960625MSS Hex Head Cap Screw, M6−1.0x25mm
4 960620MSS Hex Head Cap Screw, M6−1.0x20mm
5 456064 Head Plate Spacer
6 807−1263 Plastic Hole Plug
7 456003 Head Plate Tension, RH w/o Wiper
450645 Head Plate Tension, RH w/Wiper
8 72BK2 Bearing Kit (x2)
72BK4 Bearing Kit (x4)
9 4561WW Idler Spindle
10 456002 Head Plate Tension, LH w/o Wiper
450644 Head Plate Tension, LH w/Wiper
11 456049 Sleeve, 0.312 OD x 0.035 Wall
12 456045 Pinion End
13 456041 Wedge-Lok® Clamp Block, 3 - 18” Wide
456042 Wedge-Lok® Clamp Block, 2” Wide
14 4563WW Hex Pinion
15 4557WW Washdown Wiper
16 456049 Sleeve
17 960520MSS Hex Head Cap Screw, M5−0.80 x 20mm
18 72TT−WW Tension Tail Kit w/o Wiper
(Includes Items 3 through 14)
72TTW−WW Tension Tail Kit w/Wiper
(Includes Items 3 through 17)
19 72TS−WW Tension Spindle Kit
(Includes Items 6, 8 and 9)
WW = Conveyor width ref.: 02, 03, 04, 05, 06, 08, 10, 12, 18
Item Part Number Description

Dorner Mfg. Corp. 20 851-564 Rev. G
7200 Series Sanitary End Drive Conveyors
Service Parts
Conveyor Frame and Extension
2
1
3
4
Item Part Number Description
1 456046 Frame Connecting Bar
2 960610MSS Hex Head Cap Screw,
M6−1.0x10mm
3 See Conveyor Frame chart Conveyor Frame
4 See Conveyor Frame chart Conveyor Frame Extension
Item Part Number Description
Items 3 and 4: Conveyor Frame
Length Frame Part Number Frame Extension
Part Number
2’ (610mm) 4730WW−01860 n/a
3’ (914mm) 4730WW−03060 n/a
4’ (1219mm) 4730WW−04260 n/a
5’ (1524mm) 4730WW−05460 n/a
6’ (1829mm) 4730WW−06660 n/a
7’ (2134mm) 4730WW−07860 n/a
8’ (2438mm) 4730WW−09060 n/a
9’ (2743mm) 4730WW−10260 n/a
10’ (3048mm) 4730WW−11460 n/a
11’ (3353mm) 4730WW−12660 n/a
12’ (3658mm) 4730WW−13860 n/a
13’ (3962mm) 4730WW−07860 4750WW
14’ (4267mm) 4730WW−09060 4750WW
15’ (4572mm) 4730WW−10260 4750WW
16’ (4877mm) 4730WW−11460 4750WW
17’ (5182mm) 4730WW−12660 4750WW
18’ (5486mm) 4730WW−13860 4750WW
Items 3 and 4: Conveyor Frame
Length Frame Part Number Frame Extension
Part Number